Product Overview

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OptiX OSN 550 Multi-Service
Transmission System
V100R006C00
Product Overview
Issue
02
Date
2012-07-31
HUAWEI TECHNOLOGIES CO., LTD.
CPE
Optical
Copyright © Huawei Technologies Co., Ltd. 2012. All rights reserved.
No part of this document may be reproduced or transmitted in any form or by any means without prior
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All other trademarks and trade names mentioned in this document are the property of their respective
holders.
Notice
The purchased products, services and features are stipulated by the contract made between Huawei and
the customer. All or part of the products, services and features described in this document may not be
within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements,
information, and recommendations in this document are provided "AS IS" without warranties, guarantees or
representations of any kind, either express or implied.
The information in this document is subject to change without notice. Every effort has been made in the
preparation of this document to ensure accuracy of the contents, but all statements, information, and
recommendations in this document do not constitute a warranty of any kind, express or implied.
Huawei Technologies Co., Ltd.
Address:
Huawei Industrial Base
Bantian, Longgang
Shenzhen 518129
People's Republic of China
Website:
http://www.huawei.com
Email:
[email protected]
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Product Overview
Contents
Contents
1 Product Positioning and Features .............................................................................................. 1
1.1 Product Positioning .......................................................................................................................................... 1
1.2 Product Features ............................................................................................................................................... 2
2 Quick Reference ............................................................................................................................ 6
3 System Architecture and Service Access ................................................................................ 16
3.1 System Architecture ....................................................................................................................................... 16
3.2 Service Types ................................................................................................................................................. 18
3.2.1 Types of Supported Services ................................................................................................................. 18
3.2.2 Access Capacities .................................................................................................................................. 20
4 Hardware and Network Elements ........................................................................................... 21
4.1 Chassis and Power Consumption ................................................................................................................... 21
4.1.1 Chassis Structure ................................................................................................................................... 21
4.1.2 Cross-Connect and Slot Access Capacity (Packet) ............................................................................... 24
4.1.3 Cross-Connect and Slot Access Capacity (TDM) ................................................................................. 26
4.1.4 Power Consumption .............................................................................................................................. 26
4.2 Board Description .......................................................................................................................................... 27
4.2.1 Board Category ..................................................................................................................................... 27
5 Networking and Application Scenarios ................................................................................. 36
5.1 Basic Network Topologies ............................................................................................................................. 36
5.2 Typical Application of Hybrid Networking .................................................................................................... 37
5.3 Typical Application of Pure Packet Networking ............................................................................................ 39
5.4 Typical Application of TDM Networking ...................................................................................................... 41
6 Network Management System ................................................................................................. 43
6.1 Network Management .................................................................................................................................... 43
6.2 DCN Management ......................................................................................................................................... 45
7 Operation and Maintenance ..................................................................................................... 47
8 Technical Specifications ............................................................................................................ 50
8.1 General Specifications.................................................................................................................................... 50
8.2 Power Consumption and Weight of Each Board ............................................................................................ 51
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Product Overview
1
1 Product Positioning and Features
Product Positioning and Features
About This Chapter
With the increasing number of packet services, conventional time division multiplexing
(TDM) devices cannot meet packet service transmission demands. The OptiX OSN 550
supports a variety of service network topologies in the TDM and packet domains, applicable
to a wide range of scenarios at the access layer.
1.1 Product Positioning
This section describes product positioning and networking application.
1.2 Product Features
This section describes the equipment features in terms of architecture, technology, and
networking.
1.1 Product Positioning
This section describes product positioning and networking application.
The OptiX OSN 550 is used at the access layer of a transmission network, supporting
multi-protocol label switching (MPLS)/MPLS-transport profile (MPLS-TP) technology and a
variety of service network topologies in the TDM and packet domains. For its product
positioning and typical application, see Figure 1-1.
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Product Overview
1 Product Positioning and Features
Figure 1-1 Product positioning and typical application of the OptiX OSN 550
Access layer
Convergence node
Convergence/
Backbone layer
E1/T1
STM-1/
STM-4
E1/T1
FE
E1/T1
E1/T1 TDM network
STM-1/
STM-4
FE/
GE
FE
ATM/IMA
E1
FE/
GE
Packet
network
FE/GE
ATM/IMA E1
ATM/IMA E1
FE
OptiX OSN 550
OptiX OSN 3500
FE
NodeB
BTS
RNC
BSC
1.2 Product Features
This section describes the equipment features in terms of architecture, technology, and
networking.
Simple Structure and High Integration
The OptiX OSN 550 is a chassis whose dimensions (H x W x D) are 88 mm x 442 mm x 220
mm. Of simple structure and high integration, the OptiX OSN 550 can be installed:

In a cabinet (including European Telecommunications Standards Institute (ETSI)
cabinets and 19-inch cabinets)

On a wall

On a table

In an APM30H outdoor cabinet

In an open rack
Universal Switch Architecture and Multi-Service Transmission
The OptiX OSN 550 allows service transmission in the TDM and packet domains, achieving
smooth and gradual evolution from the TDM domain to the packet domain.
ATM E1/IMA E1/TDM E1 Service Support and Flexible Networking
The OptiX OSN 550 supports the circuit emulation service (CES) technology, allowing direct
transmission of TDM E1 services in the packet domain.
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1 Product Positioning and Features
Asynchronous transfer mode (ATM) is a connection-oriented, fast packet switching
technology. Integrating the advantages of circuit switching with those of packet switching,
ATM is a standard broadband integrated services digital network (B-ISDN) transfer mode.
Inverse multiplexing for ATM (IMA) is a technology that implements inverse multiplexing for
ATM.
End-to-End Service Configuration/One-Click Commissioning/One-Click Fault
Diagnosis (TP-Assist)
Compared with legacy TDM networks, packet switched networks (PSNs) have the following
characteristics:

PSNs have flexible networking and complicated configuration, and therefore have high
requirements for operating and maintenance personnel.

PSNs do not have complete overhead fields indicating their physical states, as compared
to TDM networks. If a fault occurs on a PSN, no simple and easy-to-use tool is available
to diagnose the fault.

Diversified network topologies and complicated technologies entail powerful OAM
capabilities.
To address the preceding concerns, the OptiX OSN equipment provides TP-Assist
functionality to simplify operation and improve efficiency in service configuration,
installation, commissioning, fault diagnosis, and routine maintenance. Table 1-1 describes the
TP-Assist OAM system applied to PSNs.
Table 1-1 TP-Assist OAM system applied to PSNs
Function
Sub-Item
Application
End-to-end
service
configuration
End-to-end
configuration of packet
services
Supports end-to-end configuration of ETH
PWE3 services, native E-Line services, and
native E-LAN services.
Alarm deployment
along with service
configuration
Automatically configures and starts PWE3
service continuity checks (CCs), tunnel
OAM CCs, and PW OAM CCs
immediately after services are configured
in end-to-end mode.
One-click
commissioning
One-click service
connectivity test
Supports the following end-to-end,
one-click OAM connectivity tests:
ETH-OAM LB, tunnel ping, and PW ping.
One-click fault
diagnosis
IP ping response
Supports IP ping response on a per-NE
basis or in end-to-end mode at UNI ports
on transport networks.
Service loopbacks
Loops back Layer 2 E-LAN services at
specific points and tests whether services
are blocked.
One-click, intelligent
fault diagnosis
Diagnoses service interruptions and service
performance deterioration.
Performance
measurement and
Supports the following performance
measurement functions:
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Product Overview
Function
1 Product Positioning and Features
Sub-Item
Application
monitoring

Volume measurement: measures traffic
volumes by port, flow, VLAN, V-UNI,
PW, transit tunnel, or port queue, and
displays volumes in graphical form on
the NMS to illustrate bandwidth usage.

Measurement of congestion-caused
packet loss: measures
congestion-caused lost packets by flow,
PW, or egress queue. This function
helps learn the actual operating status of
an NE and diagnose packet loss.
Supports the following performance
monitoring functions:
Half-duplex alarm for
ETH ports

Threshold-crossing monitoring: volume
threshold-crossing alarms

Bandwidth utilization monitoring: port
bandwidth utilization threshold-crossing
alarms

Flow monitoring: no-traffic alarms

Packet loss monitoring: packet loss
threshold-crossing alarms
Reports a warning alarm if the working
mode of an ETH port is set to
auto-negotiation but the ETH port works in
half-duplex mode.
Hierarchical OAM
The OptiX OSN equipment supports ETH OAM, MPLS OAM, and MPLS-TP OAM.
Hierarchical OAM provides Ethernet services with complete maintenance methods. Figure
1-2 shows the application of hierarchical OAM.
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Product Overview
1 Product Positioning and Features
Figure 1-2 Application of hierarchical OAM
P
P
CE1
PE2
PE1
CE3
PSN
CE2
P
P
CE4
CE
PE
P
PE
CE
MPLS/MPLS-TP
Tunnel OAM
Tunnel
Layer
MPLS/MPLS- TP PW OAM
PW
Layer
ETH
Layer
P
Ethernet
Port OAM
Ethernet Service OAM
Ethernet
Port OAM
: MEP
: MIP
Various Types of Power Inputs
The OptiX OSN 550 supports the following types of power inputs:

-48 V/-60 V DC power input

110 V/220 V AC power input
High Temperature Tolerance
The OptiX OSN 550 can tolerate high temperature. For example, the equipment tolerates an
extreme operating temperature of -5°C to +65°C when installed in an outdoor cabinet.
Extreme operating indicates that the continuous operating time of the equipment does not exceed 4 hours
and the accumulated annual operating time does not exceed 90 days.
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Product Overview
2 Quick Reference
2
Quick Reference
This chapter describes the product overview, including product photos, hardware, software,
and functions and features.
Table 2-1 lists the overview of the OptiX OSN 550.
Table 2-1 Overview of the OptiX OSN 550
Item
Description
Appearan
ce
Board
PCX/CXL/MD1/EM6T/EM6F/EF8F/EG4C/EFS8/EGT1/SL1D/SL4D/SL1Q/
SP3D/PL3T/DMD2/AUX/PIU/APIU/UPM/FAN
Packet
functions
and
features
See Table 2-2.
TDM
functions
and
features
See Table 2-3.
Packet
switching
capacity
60/40/20 Gbit/s
TDM
cross-con
nect
capacity

Higher order cross-connect capacity: 20 Gbit/s

Lower order cross-connect capacity: 5 Gbit/s
Equipmen
t-level
protection

1+1 backup for power supply

1+1 backup between active and standby system control, switching, and
timing boards

Fan protection (The failure in a single fan does not affect the operation of
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2 Quick Reference
Description
the other fans.)
Intelligent
fans
Supports intelligent fan speed adjustments and fan shut-down at low
temperature. When the ambient temperature is lower than a threshold
(determined by the actual ambient temperature and fan gear interval), fans
automatically work at the lowest gear.
Managem
ent ports
and
auxiliary
ports
Interface Type
Description
Connector
External clock
port
120-ohm external
clock port, which can
work in 2048 kbit/s
mode or 2048 kHz
mode
RJ45
Power supply
port
Power supply port
connecting to two
-48/-60 V DC power
supplies
2 mm HM connector
Two 110 V/220 V AC
power supply ports
Three-phase socket
Network
management port
Ethernet NM port/NM
serial port, which is
connected to a
network management
system (NMS)
RJ45
Alarm
input/output port
6-input/2-output alarm
port
RJ45
64 kbit/s
synchronous
transparent data
port or 19.2
kbit/s
asynchronous
transparent data
port
One 64 kbit/s
synchronous serial
port or one 19.2 kbit/s
asynchronous serial
port, which
transparently transmits
one channel of data
services
RJ45
Orderwire phone
port
Used to provide voice
communication for
operation/maintenance
engineers at different
workstations.
RJ45
Table 2-2 OptiX OSN 550 packet functions and features
Item
Description
MPLS
functions
The packet switching unit of the PCX board works with a service board to implement MPLS
functions.
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Description

Setup mode: static tunnels

Protection: 1:1 tunnel APS

OAM: supports MPLS tunnel OAM and MPLS-TP tunnel OAM. MPLS tunnel OAM
complies with ITU-T Y.1711, and MPLS-TP tunnel OAM complies with ITU-T
G.8113.1.

Maximum number of MPLS tunnels
−
Unidirectional: 1K
−
Bidirectional: 512

Maximum number of tunnel bandwidth: 10 Gbit/s

Maximum number of QinQ links: 1K
NOTE
 Unidirectional and bidirectional MPLS tunnels share tunnel resources. One bidirectional MPLS tunnel is
equivalent to two unidirectional MPLS tunnels.

PWE3
functions
The sum of PW count and MPLS tunnel count must not exceed 1K. PW count and MPLS tunnel count,
however, can be 1K simultaneously if each MPLS tunnel carries one PW. This is because if an MPLS
tunnel carries PWs, the MPLS tunnel is not counted and only the carried PWs are counted.
The packet switching unit of the PCX board works with a service board to implement PWE3
functions.

Service categories
−
TDM PWE3 (CES) services
−
ATM PWE3 services
−
ETH PWE3 services

Setup mode: static PWs

Protection: 1:1 PW APS

OAM: supports MPLS PW OAM and MPLS-TP PW OAM. MPLS PW OAM complies
with ITU-T Y.1711, and MPLS-TP PW OAM complies with ITU-T G.8113.1.

Supports MS-PWs.

Supports configurable bandwidth.

Maximum number of static PWs: 1K

Maximum number of PW bandwidth: 10 Gbit/s

Maximum number of static MS-PWs: 128
NOTE
The sum of PW count and MPLS tunnel count must not exceed 1K. PW count and MPLS tunnel count,
however, can be 1K simultaneously if each MPLS tunnel carries one PW. This is because if an MPLS
tunnel carries PWs, the MPLS tunnel is not counted and only the carried PWs are counted.
Service
Service
Category
Description
Ethernet
service
Supports Native ETH and
ETH PWE3 services.


Issue 02 (2012-07-31)
Format of Ethernet data
frames: IEEE 802.3 and
Ethernet II
Maximum
Receiving
Capability
Service Port
Description
Connector
FE
(electrical
port): 36
10/100BAS
E-T(X)
RJ-45
FE (optical
port): 48

100BAS
E-BX
LC

100BAS
Jumbo frames
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Description

MTU length: 960 bytes to
9600 bytes (1620 bytes, by
default)

100BAS
E-LX

MPLS function support


VLAN function support.
The VLAN IDs range from
1 to 4094.
100BAS
E-VX

100BAS
E-ZX
10GE
(optical
port)

10GBAS
E-SR
(LAN)


10GBAS
E-SW
(WAN)

10GBAS
E-LR
(LAN)

10GBAS
E-LW
(WAN)

10GBAS
E-ER
(LAN)

10GBAS
E-EW
(WAN)

10GBAS
E-ZR
(LAN)

10GBAS
E-ZW
(WAN)
GE (optical
port)

1000BA
SE-SX


1000BA
SE-LX

1000BA
SE-VX

1000BA
SE-ZX

QinQ support

Number of static MAC
addresses supported by a
private network: 512

Number of MAC addresses
supported by a device: 16K

E-Line services based on
PORT, PORT+VLAN,
PORT+VLAN+PRI, or
PORT+QinQ; E-Line
services carried by PWs;
maximum number of
E-Line services: 1K

CES service
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E-FX
PCXLX/
PCXX:
2
E-LAN services based on
IEEE 802.1d bridges, IEEE
802.1q bridges, or IEEE
802.1ad bridges; maximum
number of E-LAN services:
1; maximum number of
logical ports: 1K

Maximum number of CES
services: 192

Service category:
PCXLG/
PCXGA
/PCXG
B: 22
LC
LC
GE
(electrical
port): 20
1000BASET
RJ-45
192xE1
75/120-ohm
smart E1
port
Anea 96
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point-to-point service

ATM/IMA
service
Encapsulation types:
Tunnel APS
CESoPSN
−
SAToP

Compression of idle
timeslots: supported (only
for CESoPSN
encapsulation)

Jitter buffer time: 375 us to
16000 us

Packet loading time: 125 us
to 5000 us

CES ACR: supported

Maximum number of ATM
services

Protection
−
−
Local: 128
−
Remote: 256
192xE1
75/120-ohm
smart E1
port
Anea 96
Maximum number of ATM
connections
−
Local: 512
−
Remote: 1K

ATM traffic management

ATM encapsulation format
−
N-to-one VPC
−
N-to-one VCC
−
One-to-one VPC
−
One-to-one VCC

Maximum number of
concatenated ATM cells:
31

ATM OAM: F4 (VP layer)
and F5 (VC layer)

Maximum number of IMA
groups: 32

Maximum number of
members in an IMA group:
16

Maximum number of protection groups: 64

Switching duration: ≤ 50 ms (two tunnel APS protection groups, each
carrying 16 PWs)
NOTE
 Tunnel APS and PW APS share 64 protection group resources.

Issue 02 (2012-07-31)
MPLS tunnel APS and MPLS-TP tunnel APS share 64 protection group resources.
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PW APS

Maximum number of protection groups: 64

Maximum number of members bound into a PW: 512

Switching duration: ≤ 50 ms (one protection pair containing eight
members, six PW APS protection groups)
NOTE
 Tunnel APS and PW APS share 64 protection group resources.

MSTP
Supports the MSTP protocol that generates only the CIST. The MSTP
protocol provides functions equivalent to those of the RSTP protocol.
ERPS
Supports ERPS that complies with ITU-T G.8032/Y.1344.
LPT
LAG
Maintenance
MPLS PW APS and MPLS-TP PW APS share 64 protection group resources.
MPLS/MPL
S-TP OAM

Maximum number of protection groups: 8

Switching duration: ≤ 50 ms at an optical port and ≤ 2s at an electrical port
if the number of nodes on a ring network is not more than 16 and the link
is faulty bidirectionally

Maximum number of services that support LPT: 16

Point-point and point-multipoint LPT

Switching duration:
−
≤ 300 ms if the fault is on the NNI side and is detected using PW OAM
−
≤ 300 ms at an optical port and ≤ 3s at an electrical port if the fault is
on the UNI side

LAG protection

A maximum of 16 LAGs. Each LAG has a maximum of eight members.

Switching duration:
−
Manual/Static LAG: ≤ 50 ms at an optical port and ≤ 2s at an electrical
port if the link is interrupted bidirectionally
−
Static LAG: ≤ 3s if the link is interrupted unidirectionally

Tunnel OAM and PW OAM

Maximum sum of the number of tunnels supporting OAM and the number
of PWs supporting OAM: 128
NOTE
 The sum of the number of tunnels supporting OAM and the number of PWs
supporting OAM must not exceed 128.

ETH-OAM
Issue 02 (2012-07-31)

The sum of the number of tunnels supporting MPLS/MPLS-TP OAM and the number
of PWs supporting MPLS/MPLS-TP OAM must not exceed 128.
Supports the following Ethernet service OAM functions:
−
Management of OAM maintenance points
−
Continuity check (CC)
−
Loopback (LB)
−
Link trace (LT)
−
Alarm indication signal (AIS)
−
Loss measurement (LM)
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−

Delay measurement (DM)
Supports the following Ethernet port OAM functions:

−
OAM auto-discovery
−
Link performance monitoring
−
Fault detection
−
Remote loopback
−
Self-loop detection and looped-port blocking
Maximum number of MDs/MAs/MEPs: 64
NOTE
 ETH-OAM and MPLS/MPLS-TP OAM share 128 OAM resources.

Only the E-Line service transmitted in native Ethernet mode supports ETH-LM and
ETH-DM.
ATM OAM
Supports the following ATM OAM functions: CC, LB, RDI, and AIS.
RMON
Supports port-level and service-level RMON functions, in compliance with
RFC 2819. Supports four RMON management groups: Ethernet statistics
group, Ethernet history group, Ethernet alarm group, and Ethernet history
control group.
Port level:

Basic Ethernet performance

Extended Ethernet performance
Service level:
Synchronizati
on

L2VPN (private line service)

Transit tunnel

PW
PRBS
Supports PRBS tests for lower order services.
Synchronou
s Ethernet
clock

Synchronous Ethernet that complies with ITU-T G.8261 and ITU-T
G.8262.

Port receiving/transmitting synchronous Ethernet clocks: FE/GE/10GE

Input/Output of SSM packets

Clock frequency stability (holdover mode): < 50 ppb
NOTE
SFP electrical modules do not support synchronous Ethernet clocks.
When working in 10BASE-T mode, FE/GE ports do not support synchronous Ethernet
clocks.
IEEE
1588v2
Issue 02 (2012-07-31)

The OptiX OSN 550 provides two 1PPS+ToD external time ports that
support compensation for propagation delay on their connected cables. The
compensation can be set to a value within the range from 0 to 10 us in
steps of not more than 10 ns. ToD supports cyclic redundancy checks
(CRCs).

The input/output mode at the two external time ports can be set.

The two external time ports form active/standby protection. If the time
signals from one port fail, the equipment automatically adopts the time
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signals from the other port.
NOTE
A port in 10GE WAN mode does not support IEEE 1588v2.
Others
IEEE 1588
ACR
Supported
CES ACR

Maximum number of CES ACR clocks: 24

The clock performance complies with the ITU-T G.823 Traffic template.

Tributary retiming

DiffServ
QoS
NOTE
A port in 10GE WAN mode does not support IEEE 1588 ACR.
Supports simple traffic classification by specifying PHB service classes for
service flows based on their QoS information (C-VLAN priorities,
S-VLAN priorities, DSCP values, or PW EXP values) carried by packets.

Complex traffic classification
Supports traffic classification based on C-VLAN IDs, S-VLAN IDs,
C-VLAN priorities, S-VLAN priorities, C-VLAN IDs + C-VLAN
priorities, S-VLAN IDs + S-VLAN priorities, or DSCP values carried by
packets.

QoS policies
Supports port policies and V-UNI ingress policies.

CAR
Provides the CAR function for traffic flows at ports and V-UNI ingresses.

Shaping
Provides traffic shaping for a specific port, PW ingress, prioritized queue,
or traffic flow.

IGMP
snooping
Queue scheduling policies
−
SP
−
WRR
−
SP+WRR

Maximum number of multicast groups: 512

Maximum number of members in a multicast group: 1K
Table 2-3 OptiX OSN 550 TDM functions and features
Item
Description
Service
Service Category
SDH service
Issue 02 (2012-07-31)
Maximum
Receiving
Capability
Service Port
Description
Connector
26xSTM-1
S-1.1, L-1.1
and L-1.2
LC
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OptiX OSN 550 Multi-Service CPE Optical
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Item
2 Quick Reference
Description
optical ports
PDH service
Ethernet
service
Protection
SNCP
Ring MSP
Linear MSP
Supports the following
Ethernet services:
S-4.1, L-4.1
and L-4.2
optical ports
LC
2xSTM-16
S-16.1,
L-16.1 and
L-16.2 optical
ports
LC
252xE1/T1
E1
(75/120-ohm)
/T1
(100-ohm)
electrical
ports
Anea 96
18xE3/T3
E3
(75-ohm)/T3
(75-ohm)
electrical
ports
SMB
48xFE
10/100BASET(X)
RJ45
6xGE

1000BAS
E-SX/LX/
VX/ZX
LC

1000BAS
E-T

Ethernet private line (EPL)
services

Ethernet virtual private line
(EVPL) services

Ethernet private LAN
(EPLAN) services

Ethernet virtual private
LAN (EVPLAN) services

SNCP at the VC-12, VC-3, and VC-4 levels

Maximum number of protection groups: 1032

Switching duration: ≤ 50 ms

Ring MSP at the STM-1, STM-4 and STM-16 levels

Maximum number of protection groups: 13

Switching duration: ≤ 50 ms

Linear MSP at the STM-1, STM-4 and STM-16 levels

Maximum number of 1+1/1:1 linear MSP protection groups: 13

Switching duration: ≤ 50 ms
Maintenan
ce
PRBS
Synchroniz
ation
Physical layer clocks:

14xSTM-4
Supported
Including external clocks, line clocks, tributary clocks, and internal clocks. The port
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OptiX OSN 550 Multi-Service CPE Optical
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Item
2 Quick Reference
Description
impedance is 120 ohms or 75 ohms (a converter can be used to provide a 75-ohm clock port).

Non-synchronization status message (SSM), standard SSM, and extended SSM protocols

Tributary retiming

Locked mode, holdover mode, and free-run mode
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OptiX OSN 550 Multi-Service CPE Optical
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Product Overview
3
3 System Architecture and Service Access
System Architecture and Service Access
About This Chapter
The chapter describes the equipment's system architecture and service access.
3.1 System Architecture
The OptiX OSN 550 is a dual-domain (TDM and packet domains) device. This section
describes its functional units and the relationship between these units.
3.2 Service Types
This section describes the maximum service access capabilities, service ports, and boards
providing specific service types for the OptiX OSN 550.
3.1 System Architecture
The OptiX OSN 550 is a dual-domain (TDM and packet domains) device. This section
describes its functional units and the relationship between these units.
The OptiX OSN 550 consists of the following functional units: service interface unit, TDM
cross-connect unit, packet switching unit, system control and communication unit, clock unit,
auxiliary interface unit, fan unit, and power supply unit.
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OptiX OSN 550 Multi-Service CPE Optical
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3 System Architecture and Service Access
Figure 3-1 System architecture of OptiX OSN 550
TDM
crossconnect
unit
Power
supply
unit
Packet
switching
unit
VC-4
signal
FE/GE/10GE
STM-1/4/16
E1 (TDM)/T1/E3/T3
Fan
unit
Ethernet
signal
Clock
unit
Service
interface
unit
E1 (CES/ATM/IMA)
-48 V/-60 V DC
110 V/220 V AC
External clock
Orderwire
External alarm
Synchronous/Asynchronous data
Auxiliary
interface
unit
NMS
System control and
communication unit
DCN
Backplane
Optical/Electrical service
Cross-connect bus
Control and communication bus & Clock bus
Table 3-1 Function units of the OptiX OSN 550
Function Unit
Function
Service interface
unit

Receives/Transmits TDM E1/T1/E3/T3 signals.

Receives/Transmits ATM/IMA E1 signals.

Receives/Transmits STM-1/4/16 signals.

Receives/Transmits Ethernet signals.

Performs E1/ATM/Ethernet PWE3 emulation.
TDM cross-connect
unit

Provides the cross-connect function and grooms TDM services.
Packet switching
unit

Processes Ethernet services and forwards packets.

Processes MPLS labels and forwards packets.

Processes PW labels and forwards packets.

Performs system communication and control.

Configures and manages the system.
System control and
communication unit
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OptiX OSN 550 Multi-Service CPE Optical
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Function Unit
Clock unit
Auxiliary interface
unit
Power supply unit
Fan unit
3 System Architecture and Service Access
Function

Collects alarms and monitors performance.

Processes overhead bytes.

Traces clock sources and provides clock signals for the system.

Provides the input/output port for external clocks.

Provides the orderwire phone port.

Provides the synchronous/asynchronous data port.

Provides the external alarm input/output port.

Connects to -48 V/-60 V DC power supplies.

Connects to 110 V to 220 V AC power supplies.

Cools the NE.
3.2 Service Types
This section describes the maximum service access capabilities, service ports, and boards
providing specific service types for the OptiX OSN 550.
3.2.1 Types of Supported Services
Different boards providing a wide variety of service ports can be deployed on the OptiX OSN
550.
Table 3-2 lists the services supported by the OptiX OSN 550.
Table 3-2 Types of supported services
Servi
ce
Cate
gory
Service
Type
Service
Rate
Board
Reference Standard
Packe
t
10 GE LAN
service
10.31 Gbit/s
PCXLX/PCXX
IEEE 802.3ae
10 GE
WAN
service
9.95 Gbit/s
PCXLX/PCXX
GE service
(optical
port)
1.25 Gbit/s
PCXLG/PCXGA/PCXG
B/EM6F/EG4C
GE service
(electrical
port)
1000 Mbit/s
EM6T/EM6F/EG4C
FE service
125 Mbit/s
EF8F/EM6F
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IEEE 802.3z
IEEE 802.3u
18
OptiX OSN 550 Multi-Service CPE Optical
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Product Overview
Servi
ce
Cate
gory
Service
Type
3 System Architecture and Service Access
Service
Rate
Board
FE service
(electrical
port)
10/100
Mbit/s
EM6T/EM6F
ATM/IMA/
E1 CES
service
2.048
Mbit/s
MD1
STM-1
standard
service
155.52
Mbit/s
SL1D/SL1Q/PCXLX/P
CXLG/CXL1
STM-4
standard or
concatenati
on service
622.08
Mbit/s
SL4D/PCXLX/PCXLG/
CXL4
STM-16
standard or
concatenati
on service
2.5 Gbit/s
PCXLX/PCXLG/CXL1
6
E1 service
2.048
Mbit/s
SP3D
Reference Standard
(optical
port)
SDH
PDH
ITU-T G.703
ITU-T G.823
ITU-T G.707
ITU-T G.691
ITU-T G.957
ITU-T G.693
ITU-T G.783
ITU-T G.825
ITU-T G.703
ITU-T G.823
ITU-T G.783
ITU-T G.824
ITU-T G.742
T1 service
1.544
Mbit/s
SP3D
ITU-T G.703
ITU-T G.823
ITU-T G.824
ITU-T G.783
44.736
Mbit/s
PL3T
34.368
Mbit/s
PL3T
FE service
10/100
Mbit/s
EFS8
IEEE 802.3u
GE service
1.25 Gbit/s
EGT1
IEEE 802.3z
E3 service
T3 service
EoS
ITU-T G.703
ITU-T G.824
ITU-T G.703
ITU-T G.823
FE: Fast Ethernet
GE: Gigabit Ethernet
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3 System Architecture and Service Access
3.2.2 Access Capacities
This section describes access capacities when different system control, switching, and timing
boards are configured in the OptiX OSN 550.
Access Capacity in Packet Mode
Table 3-3 lists access capacities in packet mode when different system control, switching, and
timing boards are configured on the OptiX OSN 550.
Table 3-3 Access capacities of the OptiX OSN 550 in packet mode
Board
10GE
(Optical
Port)
GE
(Optical
Port)
GE
(Electrica
l Port)
FE
(Optical
Port)
FE
(Electrica
l Port)
E1
(ATM/I
MA/CES)
PCXLX
2
20
20
48
36
192
PCXX
2
20
20
48
36
192
PCXLG
0
22
20
48
36
192
PCXGA
0
22
20
48
36
192
PCXGB
0
22
20
48
36
192
Access Capacity in TDM Mode
Table 3-4 lists access capacities in TDM mode when different system control, switching, and
timing boards are configured on the OptiX OSN 550.
Table 3-4 Access capacities of the OptiX OSN 550 in TDM mode
Board
STM-1
STM-4
STM-16
E1/T1
E3/T3
FE
GE
PCXLX
26
14
2
252
18
48
6
PCXX
24
12
0
252
18
48
6
PCXLG
26
14
2
252
18
48
6
PCXGA
24
12
0
252
18
48
6
PCXGB
24
12
0
252
18
48
6
CXL1
26
12
0
252
18
48
6
CXL4
24
14
0
252
18
48
6
CXL16
24
12
2
252
18
48
6
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OptiX OSN 550 Multi-Service CPE Optical
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4
4 Hardware and Network Elements
Hardware and Network Elements
About This Chapter
This section describes hardware structure, boards and external components of the equipment.
4.1 Chassis and Power Consumption
This section describes the structure of a chassis, slot layout, and access capacity.
4.2 Board Description
This section provides the appearance, dimensions, and classification of boards.
4.1 Chassis and Power Consumption
This section describes the structure of a chassis, slot layout, and access capacity.
4.1.1 Chassis Structure
This section describes the chassis structure and equipment labels.
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4 Hardware and Network Elements
Chassis Structure and Board Installation Area
Board
installation
area
H
D
W
4
1
SLOT
SLOT
10
91 SLOT
(PIU) SLOT
(PIU)
11
93
SLOT (FAN)
SLOT
(FAN)
929
(PIU)
(PIU)
SLOT
7 (CST/CSH)
SLOT
7
SLOT
8 (CST/CSH)
SLOT
8
SLOT
5 (EXT)
SLOT
5 (EXT)
SLOT 66 (EXT)
SLOT
(EXT)
SLOT
3 (EXT)
SLOT
3 (EXT)
SLOT 4
4 (EXT)
SLOT
(EXT)
SLOT
1 (EXT
)
SLOT
1 (EXT)
SLOT 2
2 (EXT
)
SLOT
(EXT)
2
3
1 Power supply boards
2
Fan board
3
4
Extended boards
System control, switching,
and timing boards
An OptiX OSN 550 NE can automatically save its NE ID, extended ID, IP address, and subnet mask to
its backplane. After a new system control, switching, and timing board replaces an original one, the NE
automatically uses the saved information. Therefore, you do not need to set the NE ID, extended ID, IP
address, and subnet mask for the substitute board.
Ventilation Design
The chassis is densely covered with small air holes. Through these holes, air is let in from the
left and out from the right by fans.
Ensure the smooth flow of air inside and around the equipment. Do not block the air intake vents and air
exhaust vents of subracks when cabling. Keep the top of subracks clean.
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OptiX OSN 550 Multi-Service CPE Optical
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4 Hardware and Network Elements
Figure 4-1 Ventilation design of the OptiX OSN 550
AIR OUT
AIR IN
Label Description
Table 4-1 provides the description of the labels on the chassis and boards. Actual labels may
vary depending on the configurations of the chassis and boards.
Table 4-1 Description of labels
Label
合 格证/ QUALIFICATION CARD
Label Name
Description
ESD protection
label
Indicates that the equipment is
sensitive to static electricity.
Grounding label
Indicates the grounding position
of the chassis.
Fan warning label
Warns you not to touch fan leaves
when the fan is rotating.
Power caution
label
Instructs you to read related
instructions before performing any
power-related tasks.
Qualification card
label
Indicates that the equipment has
been quality checked.
HUAWEI
Issue 02 (2012-07-31)
华为技术有限公司
中国制造
HUAWEI TECHNOLOGIES CO.,LTD.
MADE IN CHINA
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Label
4 Hardware and Network Elements
Label Name
Description
RoHS label
Indicates that the equipment
contains certain hazardous
substances specified in the RoHS
directive. The equipment needs to
be recycled after the
environment-friendly use period
of 50 years expires.
Product nameplate
label
Indicates the product name and
certification.
50

DC power

AC power
4.1.2 Cross-Connect and Slot Access Capacity (Packet)
This section provides switching capacities and slot access capacities of the OptiX OSN 550 in
packet mode.
Switching Capacities (Packet Mode)
Table 4-2 lists packet switching capacities when different system control, switching, and
timing boards are installed.
Table 4-2 Switching capacities of the OptiX OSN 550
Board
Maximum Switching Capacity (Gbit/s)
PCXLX
60
PCXX
60
PCXLG
40
PCXGA
20
PCXGB
40
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4 Hardware and Network Elements
Access Capacities of Slots (Packet Mode)
Figure 4-2 provides access capacities of slots when PCXLX/PCXX boards are installed on the
OptiX OSN 550.
Figure 4-2 Access capacities of slots when PCXLX/PCXX boards are installed on the OptiX OSN
550
SLO
SLOT
T
1
91
0
SLOT
SLO
(PIU
T
(PIU)
)
1
93
1
SLO
SLOT (FAN)
T
SLOT 7
SLOT
7
10Gbit/s
(CST/CSH)
SLOT 5
SLOT 5
4Gbit/s
(EXT)
SLOT 6
SLOT 6
(EXT)4Gbit/s
SLOT 3
SLOT 3
(EXT) 4Gbit/s
SLOT 4
SLOT 4
(EXT)4Gbit/s
SLOT 1
SLOT 1
)
(EXT 10Gbit/s
SLOT 2
SLOT 2
)
(EXT10Gbit/s
SLOT SLOT
8
10Gbit/s
8 (CST/CSH)
929
(PIU
(PIU)
)
Figure 4-3 provides access capacities of slots when PCXGB/PCXLG boards are installed on
the OptiX OSN 550.
Figure 4-3 Access capacities of slots when PCXLG/PCXGB boards are installed on the OptiX
OSN 550
SLO
SLOT
T
1
91
0
SLOT
SLO
(PIU
T
(PIU)
)
1
93
1
SLO
SLOT (FAN)
T
SLOT 7
SLOT1Gbit/s
7
(CST/CSH)
SLOT 5
SLOT 5
4Gbit/s
(EXT)
SLOT 6
SLOT 6
(EXT)4Gbit/s
SLOT 3
SLOT 3
(EXT) 4Gbit/s
SLOT 4
SLOT 4
(EXT)4Gbit/s
SLOT 1
SLOT 1
)
(EXT 10Gbit/s
SLOT 2
SLOT 2
)
(EXT10Gbit/s
SLOT SLOT
8
1Gbit/s
8 (CST/CSH)
929
(PIU
(PIU)
)
Figure 4-4 provides access capacities of slots when PCXGA boards are installed on the OptiX
OSN 550.
Figure 4-4 Access capacities of slots when PCXGA boards are installed on the OptiX OSN 550
SLO
SLOT
T
1
91
0
SLOT
SLO
(PIU
T
(PIU)
)
1
93
1
SLO
SLOT (FAN)
T
SLOT 7
SLOT 7
1Gbit/s
(CST/CSH)
SLOT 5
SLOT 5
4Gbit/s
(EXT)
SLOT 6
SLOT 6
(EXT)4Gbit/s
SLOT 3
SLOT 3
(EXT) 4Gbit/s
SLOT 4
SLOT 4
(EXT)4Gbit/s
SLOT 1
SLOT 1
)
(EXT 2.5Gbit/s
SLOT 2
SLOT 2
)
(EXT2.5Gbit/s
SLOT SLOT
8
1Gbit/s
8 (CST/CSH)
929
(PIU
(PIU)
)
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OptiX OSN 550 Multi-Service CPE Optical
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4 Hardware and Network Elements
4.1.3 Cross-Connect and Slot Access Capacity (TDM)
This section provides cross-connect capacities and slot access capacities of the OptiX OSN
550 in TDM mode.
Cross-Connect Capacities (TDM Mode)
Table 4-3 lists cross-connect capacities when different system control, switching, and timing
boards are installed.
Table 4-3 Cross-connect capacities of the OptiX OSN 550
Board
Higher Order
Cross-Connect Capacity
(Gbit/s)
Lower Order
Cross-Connect Capacity
(Gbit/s)
PCXLX/PCXX/PCXLG/PC
XGA/PCXGB/CXL
20
5
Access Capacities of Slots (TDM Mode)
Access capacities of all slots are shown in Figure 4-5. The access capacity of a slot remains
the same regardless of whether the CXL, PCXLX, PCXX, PCXLG, PCXGA, or PCXGB
board is installed.
Figure 4-5 Access capacities of slots on the OptiX OSN 550
SLO
SLOT
T
1
91
0
SLOT
SLO
(PIU
T
(PIU)
)
1
93
1
SLO
SLOT (FAN)
T
SLOT 7
SLOT
7
2.5Gbit/s
(CST/CSH)
SLOT 5
SLOT 5
1.25Gbit/s
(EXT)
SLOT 6
SLOT 6
1.25Gbit/s
(EXT)
SLOT 3
SLOT 3
(EXT)1.25Gbit/s
SLOT 4
SLOT 4
1.25Gbit/s
(EXT)
SLOT 1
SLOT 1
)
(EXT 2.5Gbit/s
SLOT 2
SLOT 2
)
(EXT2.5Gbit/s
SLOT SLOT
8
2.5Gbit/s
8 (CST/CSH)
929
(PIU
(PIU)
)
4.1.4 Power Consumption
This section provides the power consumption and heat consumption of the equipment.
Power Consumption

Maximum power consumption: 240 W

Typical power consumption: 149 W
Board configuration for typical power consumption: 2 x PCXLX + 3 x EM6F + 1 x MD1
+ 1 x FAN + 2 x PIU.
As shown in the following figure.
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OptiX OSN 550 Multi-Service CPE Optical
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SLOT
SLOT
10
91
SLOT
(PIU) SLOT
(PIU)
11
93
SLOT (FAN)
SLOT
(FAN)
9
92
(PIU)
(PIU)
4 Hardware and Network Elements
SLOT
SLOT
88(PCXLX)
(CST/CSH)
SLOT 7
SLOT
7 (CST/CSH)
(PCXLX)
SLOT 6 (EXT)
SLOT 5 (EXT)
SLOT 33(EXT)
SLOT
(MD1)
SLOT
(EXT)
SLOT
4 4(EM6F)
SLOT 11(EXT
)
SLOT
(EM6F)
SLOT
(EXT )
SLOT
2 2(EF6F)
Heat Consumption

Maximum heat consumption: 819 BTU/h

Typical heat consumption: 485 BTU/h
In the case of OptiX OSN 550 equipment, power consumption is generally transformed into heat
consumption. Hence, heat consumption (BTU/h) and power consumption (W) can be converted to each
other in the formula: Heat consumption (BTU/h) = Power consumption (W) / 0.2931 (Wh).
4.2 Board Description
This section provides the appearance, dimensions, and classification of boards.
4.2.1 Board Category
This section describes the boards that the equipment supports. Different boards provide the
equipment with different functions.
Table 4-4 lists the boards that the OptiX OSN 550 supports.
Table 4-4 Boards that the OptiX OSN 550 supports
Board
Classifi
cation
Board
Acron
ym
Board Name
Function
Service Category
Port Type
Vali
d
Slot
System
control,
switchin
g, and
timing
board
(Hybrid)
TNM1
PCXL
X
Cross-connect
, timing,
system
control, and
line board



One Ethernet
NM port/NM
serial port
(sharing one
RJ45 port)
Slots
7 and
8

One
STM-1/STM-4/S
TM-16 SFP
optical port. The
optical port type
can be S-1.1,
L-1.1, L-1.2,
S-4.1, L-4.1,
L-4.2, S-16.1,
L-16.1, or
L-16.2.

One 10GE (XFP)
optical port:
10GBASE-SR
(LAN),

Issue 02 (2012-07-31)
Supports
a packet
switchin
g
capacity
of 60
Gbit/s.
Supports
a higher
order
cross-co
nnect
capacity
of 20
Gbit/s
and a
lower
order
cross-co
nnect
Native Ethernet
services
−
Point-to-point
transparent
transmission
E-Line services
−
VLAN-based
E-Line services
−
QinQ-based
E-Line services
−
E-LAN services
based on IEEE
802.1d bridges
−
E-LAN services
based on IEEE
802.1q bridges
−
E-LAN services
based on IEEE
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OptiX OSN 550 Multi-Service CPE Optical
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Board
Classifi
cation
Board
Acron
ym
Board Name
4 Hardware and Network Elements
Function
capacity
of 5
Gbit/s.
TNM1
PCXX
Cross-connect
, timing,
system
control, and
line board

Performs
system
commun
ication
and
control.

Supports
a packet
switchin
g
capacity
of 60
Gbit/s.

TNM1
PCXL
G
Issue 02 (2012-07-31)
Cross-connect
, timing,
system
control, and
line board
Supports
a higher
order
cross-co
nnect
capacity
of 20
Gbit/s
and a
lower
order
cross-co
nnect
capacity
of 5
Gbit/s.

Performs
system
commun
ication
and
control.

Supports
a packet
switchin
g
capacity
of 40
Service Category
Port Type
802.1ad bridges

ETH PWE3 services

STM-1/STM-4/STM16 services

Native Ethernet
services
−
Point-to-point
transparent
transmission
E-Line services
−
VLAN-based
E-Line services
−
QinQ-based
E-Line services
−
E-LAN services
based on IEEE
802.1d bridges
−
E-LAN services
based on IEEE
802.1q bridges
−
E-LAN services
based on IEEE
802.1ad bridges

ETH PWE3 services

Native Ethernet
services
−
10GBASE-SW
(WAN),
10GBASE-LR
(LAN),
10GBASE-LW
(WAN),
10GBASE-ER
(LAN),
10GBASE-EW
(WAN),
10GBASE-ZR
(LAN), or
10GBASE-ZW
(WAN)

One Ethernet
NM port/NM
serial port
(sharing one
RJ45 port)

One 10GE (XFP)
optical port:
10GBASE-SR
(LAN),
10GBASE-SW
(WAN),
10GBASE-LR
(LAN),
10GBASE-LW
(WAN),
10GBASE-ER
(LAN),
10GBASE-EW
(WAN),
10GBASE-ZR
(LAN), or
10GBASE-ZW
(WAN)

One Ethernet
NM port/NM
serial port
(sharing one
RJ45 port)

One
Point-to-point
transparent
transmission
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d
Slot
Slots
7 and
8
Slots
7 and
8
28
OptiX OSN 550 Multi-Service CPE Optical
Transmission System
Product Overview
Board
Classifi
cation
Board
Acron
ym
Board Name
4 Hardware and Network Elements
Function
Service Category
Gbit/s.

TNM1
PCXG
A
Cross-connect
, timing,
system
control, and
line board

Performs
system
commun
ication
and
control.

Supports
a packet
switchin
g
capacity
of 20
Gbit/s.


Issue 02 (2012-07-31)
Supports
a higher
order
cross-co
nnect
capacity
of 20
Gbit/s
and a
lower
order
cross-co
nnect
capacity
of 5
Gbit/s.
Supports
a higher
order
cross-co
nnect
capacity
of 20
Gbit/s
and a
lower
order
cross-co
nnect
capacity
of 5
Gbit/s.
Port Type
E-Line services
−
VLAN-based
E-Line services
−
QinQ-based
E-Line services
−
E-LAN services
based on IEEE
802.1d bridges
−
E-LAN services
based on IEEE
802.1q bridges
−
ETH PWE3 services

STM-1/STM-4/STM16 services

Native Ethernet
services
−

STM-1/STM-4/S
TM-16 SFP
optical port. The
optical port type
can be S-1.1,
L-1.1, L-1.2,
S-4.1, L-4.1,
L-4.2, S-16.1,
L-16.1, or
L-16.2.

One GE (SFP)
optical port:
1000BASE-SX/1
000BASE-LX/10
00BASE-VX/10
00BASE-ZX

One Ethernet
NM port/NM
serial port
(sharing one
RJ45 port)

One GE (SFP)
optical port:
1000BASE-SX/1
000BASE-LX/10
00BASE-VX/10
00BASE-ZX
E-LAN services
based on IEEE
802.1ad bridges

Point-to-point
transparent
transmission
E-Line services
−
VLAN-based
E-Line services
−
QinQ-based
E-Line services
−
E-LAN services
based on IEEE
802.1d bridges
−
E-LAN services
based on IEEE
802.1q bridges
−
E-LAN services
based on IEEE
802.1ad bridges
Vali
d
Slot
Slots
7 and
8
ETH PWE3 services
Performs
system
commun
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OptiX OSN 550 Multi-Service CPE Optical
Transmission System
Product Overview
Board
Classifi
cation
Board
Acron
ym
Board Name
4 Hardware and Network Elements
Function
Service Category
Port Type
Vali
d
Slot


One Ethernet
NM port/NM
serial port
(sharing one
RJ45 port)
Slots
7 and
8

One GE (SFP)
optical port:
1000BASE-SX/1
000BASE-LX/10
00BASE-VX/10
00BASE-ZX

One Ethernet
NM port/NM
serial port
(sharing one
RJ45 port)

One STM-1
optical port of
the S-1.1 and
L-1.1 types
ication
and
control.
TNM1
PCXG
B
Cross-connect
, timing,
system
control, and
line board


System
control,
switchin
g, and
timing
board
(TDM)
TNM1
CXL1
Cross-connect
, timing,
system
control, and
line board
Supports
a higher
order
cross-co
nnect
capacity
of 20
Gbit/s
and a
lower
order
cross-co
nnect
capacity
of 5
Gbit/s.

Performs
system
commun
ication
and
control.

Supports
a higher
order
cross-co
nnect
capacity
of 20
Gbit/s
and a
lower
order
cross-co
nnect
capacity
of 5
Gbit/s.

Issue 02 (2012-07-31)
Supports
a packet
switchin
g
capacity
of 40
Gbit/s.
Native Ethernet
services
−

Point-to-point
transparent
transmission
E-Line services
−
VLAN-based
E-Line services
−
QinQ-based
E-Line services
−
E-LAN services
based on IEEE
802.1d bridges
−
E-LAN services
based on IEEE
802.1q bridges
−
E-LAN services
based on IEEE
802.1ad bridges
ETH PWE3 services
STM-1 services
Slots
7 and
8
Performs
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OptiX OSN 550 Multi-Service CPE Optical
Transmission System
Product Overview
Board
Classifi
cation
Board
Acron
ym
Board Name
4 Hardware and Network Elements
Function
Service Category
Port Type
Vali
d
Slot
STM-4 services

One Ethernet
NM port/NM
serial port
(sharing one
RJ45 port)
Slots
7 and
8

One STM-4
optical port of
type S-4.1 or
L-4.1

One Ethernet
NM port/NM
serial port
(sharing one
RJ45 port)

One STM-16
optical port of
the S-16.1,
L-16.1, and
L-16.2 types
system
commun
ication
and
control.
TNM1
CXL4
TNM1
CXL16
Cross-connect
, timing,
system
control, and
line board
Cross-connect
, timing,
system
control, and
line board


Performs
system
commun
ication
and
control.

Supports
a higher
order
cross-co
nnect
capacity
of 20
Gbit/s
and a
lower
order
cross-co
nnect
capacity
of 5
Gbit/s.

Issue 02 (2012-07-31)
Supports
a higher
order
cross-co
nnect
capacity
of 20
Gbit/s
and a
lower
order
cross-co
nnect
capacity
of 5
Gbit/s.
STM-16 services
Slots
7 and
8
Performs
system
commun
ication
and
control.
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OptiX OSN 550 Multi-Service CPE Optical
Transmission System
Product Overview
4 Hardware and Network Elements
Board
Classifi
cation
Board
Acron
ym
Board Name
Function
Service Category
Port Type
Vali
d
Slot
Packet
processi
ng board
TNM1
MD1
32xSmart E1
service
processing
board
Receives/Tr
ansmits E1
signals.

CES E1 services
75/120-ohm E1 port

ATM/IMA E1
services
Slots
1 to 6
TNM1
EM6T
6xRJ45
FE/GE
processing
board
Receives/Tr
ansmits
FE/GE
service
signals and
works with
the packet
switching
unit to
process the
received
FE/GE
service
signals.

Native Ethernet
services

Four FE
electrical ports:
10/100BASE-T(
X)
Slots
1 to 6

Two GE
electrical ports
(they can serve
as FE electrical
ports):
1000BASE-T

Four FE
electrical ports:
10/100BASE-T(
X)

Two ports that
use any of the
following types
of SFP modules:
1000BASE-SX/1
000BASE-LX/10
00BASE-VX/10
00BASE-ZX/100
0BASE-T
(compatible with
FE electrical
ports)/100BASEBX/100BASE-F
X/100BASE-LX/
100BASE-VX/1
00BASE-ZX

Four GE
electrical ports:
1000BASE-T

Four GE/FE
optical ports
(using SFP
optical modules):
1000BASE-SX/1
000BASE-LX/10
00BASE-VX/10
00BASE-ZX/100
BASE-BX/100B
ASE-FX/100BA
SE-LX/100BAS
TNM1
EM6F
TNM1
EG4C
Issue 02 (2012-07-31)
4xRJ45 and
2xSFP FE/GE
processing
board
4xGE
(SFP/RJ45)
processing
board
Receives/Tr
ansmits GE
service
signals and
works with
the packet
switching
unit to
process the
received GE
service
signals.
−
Point-to-point
transparent
transmission
E-Line services
−
VLAN-based
E-Line services
−
QinQ-based
E-Line services
−
E-LAN services
based on IEEE
802.1d bridges
−
E-LAN services
based on IEEE
802.1q bridges
−
E-LAN services
based on IEEE
802.1ad bridges

ETH PWE3 services

Native Ethernet
services
−
Point-to-point
transparent
transmission
E-Line services
−
VLAN-based
E-Line services
−
QinQ-based
E-Line services
−
E-LAN services
based on IEEE
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32
OptiX OSN 550 Multi-Service CPE Optical
Transmission System
Product Overview
Board
Classifi
cation
Board
Acron
ym
Board Name
Function
4 Hardware and Network Elements
Service Category
802.1d bridges
TNM1
EF8F
8xFE
processing
board
Receives/Tr
ansmits FE
service
signals and
works with
the packet
switching
unit to
process the
received FE
service
signals.
PDH
E-LAN services
based on IEEE
802.1q bridges
−
E-LAN services
based on IEEE
802.1ad bridges

ETH PWE3 services

Native Ethernet
services

SDH
board
−
−
Point-to-point
transparent
transmission
E-Line services
−
VLAN-based
E-Line services
−
QinQ-based
E-Line services
−
E-LAN services
based on IEEE
802.1d bridges
−
E-LAN services
based on IEEE
802.1q bridges
−
E-LAN services
based on IEEE
802.1ad bridges
Port Type
Vali
d
Slot
E-VX/100BASEZX
Eight FE optical
ports:
100BASE-BX/100B
ASE-FX/100BASELX/100BASE-VX/1
00BASE-ZX
Slots
1 to 6
ETH PWE3 services
TNH2
SL1D
2xSTM-1
interface
board
Receives/Tr
ansmits
2xSTM-1
optical
signals.
STM-1 services
Two STM-1 optical
ports of the S-1.1,
L-1.1, and L-1.2
types
Slots
1 to 6
TNH2
SL4D
2xSTM-4
interface
board
Receives/Tr
ansmits
2xSTM-4
optical
signals.
STM-4 services
Two STM-4 optical
ports of the S-4.1,
L-4.1, and L-4.2
types
Slots
1 to 6
TNH2
SL1Q
4xSTM-1
interface
board
Receives/Tr
ansmits
4xSTM-1
optical
signals.
STM-1 services
Four STM-1 optical
ports of the S-1.1,
L-1.1, and L-1.2
types
Slots
1 to 6
TNH2
42xE1/T1
Receives/Tr
E1/T1 services
Forty-two
Slots
Issue 02 (2012-07-31)
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33
OptiX OSN 550 Multi-Service CPE Optical
Transmission System
Product Overview
Board
Classifi
cation
Board
Acron
ym
Board Name
Function
board
SP3D
tributary
board
ansmits
E1/T1
signals.
TNH2
PL3T
3xE3/T3
tributary
board
Receives/Tr
ansmits
E3/T3
signals.
TNH2
EFS8
8xFE
switching and
processing
board
Receives/Tr
ansmits
8xFE
signals.
EoS
board
TNH2
EGT1
WDM
board
Auxiliar
y
interface
board
TNM1
DMD2
TNM1
AUX
Issue 02 (2012-07-31)
1xGE
transparent
transmission
board
Receives/Tr
ansmits
1xGE
signals.
2-port optical
add/drop
multiplexing
board
Auxiliary
interface
board
4 Hardware and Network Elements
Port Type
Vali
d
Slot
75/120-ohm E1
ports or forty-two
100-ohm T1 ports
1 to 6
E3/T3 services
Three 75-ohm E3/T3
ports
Slots
1 to 6

EPL services

EVPL services
Slots
1 to 6

EPLAN services
Eight FE electrical
ports:
10/100BASE-T(X)

EVPLAN services

EPL services

EVPL services
Slots
1 to 6

EPLAN services
One GE
optical/electrical
port (SFP):

EVPLAN services
Service Category

1000BASE-SX

1000BASE-LX

1000BASE-VX

1000BASE-ZX

1000BASE-T

wIN/wOUT

wA1/wA2

wD1/wD2

eIN/eOUT

eA1/eA2

eD1/eD2
Applicable
to both the
CWDM and
DWDM
systems, the
TNF1DMD
2
adds/drops
two
wavelengths
of signals
to/from the
multiplexed
wavelength
in the east
and west
directions.
N/A
Provides the
system with
one
orderwire
phone port,
one
synchronou
s data port
or

Orderwire services


Synchronous data
services
One orderwire
phone port

One
asynchronous
data port

One synchronous
data port

6-input/2-output

Asynchronous data
services
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OptiX OSN 550 Multi-Service CPE Optical
Transmission System
Product Overview
Board
Classifi
cation
Board
Acron
ym
Board Name
Function
4 Hardware and Network Elements
Service Category
asynchrono
us data port,
6-input/2-ou
tput alarm
ports, one
2-channel
external
clock port,
and two
2-channel
external
time ports.
Power
supply
board
Fan
board
Port Type
Vali
d
Slot
alarm port

One 2-channel
external clock
port

Two 2-channel
external time
ports
UPM
Uninterruptibl
e power
module
Provides
access to
one 110
V/220 V
AC power
supply.
N/A
Provides two –48 V
DC power supply
ports.
slot
97
TND1
PIU
Power supply
board
Provides
one -48
V/-60 V DC
power
supply.
N/A
-48 V/-60 V DC
power supply ports
Slots
91
and
92
TNF1
APIU
Power supply
board
Provides
110 V/220
V AC
power
supplies.
N/A
100 V/240 V AC
power supply ports

Sl
ot
s
4
an
d
6
(r
ec
o
m
m
en
de
d)

Sl
ot
s
2
an
d
4
TNM1
FAN
Issue 02 (2012-07-31)
Fan board
Cools the
NE.
N/A
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35
OptiX OSN 550 Multi-Service CPE Optical
Transmission System
Product Overview
5
5 Networking and Application Scenarios
Networking and Application Scenarios
About This Chapter
The OptiX OSN 550 supports various service networking topologies in the time division
multiplexing (TDM) and packet domains, applicable to a wide range of scenarios.
5.1 Basic Network Topologies
OptiX OSN 550s can form the following network topologies: chain, ring, tangent rings, and
ring with chain.
5.2 Typical Application of Hybrid Networking
In Hybrid networking mode, the OptiX OSN 550 can transport packet services and time
division multiplexing (TDM) services at the same time.
5.3 Typical Application of Pure Packet Networking
This section describes the typical application of pure packet networking.
5.4 Typical Application of TDM Networking
This section describes the typical application of time division multiplexing (TDM)
networking.
5.1 Basic Network Topologies
OptiX OSN 550s can form the following network topologies: chain, ring, tangent rings, and
ring with chain.
The OptiX OSN 550 supports separate and combined configurations of the following types:
terminal multiplexer (TM), add/drop multiplexer (ADM), and multiple add/drop multiplexer
(MADM).
OptiX OSN 550s can form the following network topologies: chain, ring, tangent rings, and
ring with chain. In addition, OptiX OSN 550s can be interconnected with other OptiX OSN
equipment, OptiX DWDM equipment, and OptiX Metro equipment to provide a complete
transport network solution. See Table 5-1.
Issue 02 (2012-07-31)
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OptiX OSN 550 Multi-Service CPE Optical
Transmission System
Product Overview
5 Networking and Application Scenarios
Table 5-1 Network topologies supported by OptiX OSN 550s and corresponding legends
Network
Topology
Legend
Chain
Ring
Tangent rings
Ring with chain
5.2 Typical Application of Hybrid Networking
In Hybrid networking mode, the OptiX OSN 550 can transport packet services and time
division multiplexing (TDM) services at the same time.
Figure 5-1 shows a Hybrid ring network, and Figure 5-2 shows the board configurations on
each NE of the Hybrid ring network, on which the following base station services are
transmitted:

2G base station services (transmitted in Native E1 mode)

3G base station services (transmitted in ETH PWE3 or ATM/IMA PWE3 mode)
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OptiX OSN 550 Multi-Service CPE Optical
Transmission System
Product Overview
5 Networking and Application Scenarios
Figure 5-1 Hybrid ring network
FE
TDM E1
FE
NE2
NE1
NE3
FE
TDM E1
NE4
ATM/IMA E1
Packet domain
Issue 02 (2012-07-31)
TDM domain
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BTS
38
OptiX OSN 550 Multi-Service CPE Optical
Transmission System
Product Overview
5 Networking and Application Scenarios
Figure 5-2 Board configurations on each NE of the Hybrid ring network
PCXLG
PCXLG
NE6
EM6T SP3D
NE2
FE
E1
FE
NE1
PCXLG
PCXLG
NE6
EM6T
SP3D
NE3
PCXLG PCXLG
NE6
EF8F
E1
FE
NE4
PCXLG PCXLG
NE6
MD1
ATM/IMA E1
Packet domain
TDM domain
NodeB
BTS
5.3 Typical Application of Pure Packet Networking
This section describes the typical application of pure packet networking.
Figure 5-3 shows a pure packet network, and Figure 5-4 shows the board configurations on
each NE of the pure packet network, on which the following base station services are
transmitted:

2G base station services (transmitted in CES mode)

3G base station services (transmitted in ETH PWE3 or ATM/IMA/CES E1 mode)
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OptiX OSN 550 Multi-Service CPE Optical
Transmission System
Product Overview
5 Networking and Application Scenarios
Figure 5-3 Pure packet network
FE
NE5
ATM/IMA E1
FE
GE
GE
NE2
NE3
NE1
GE
TDM E1
FE
GE
NE4
TDM E1
NodeB
BTS
Figure 5-4 Board configurations on each NE of the pure packet network
NE5
PCXGB
NE6
FE
EF8F
MD1
ATM/IMA E1
NE2
PCXGB PCXGB
NE6
EM6F
FE
NE1
PCXGB
NE6
MD1
E1
NE3
PCXGB
PCXGB
FE
PCXGB
NE6
EM6F
NE4
PCXGB
PCXGB
GE
FE
ISU2
MD1
E1
NodeB
Issue 02 (2012-07-31)
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40
OptiX OSN 550 Multi-Service CPE Optical
Transmission System
Product Overview
5 Networking and Application Scenarios
5.4 Typical Application of TDM Networking
This section describes the typical application of time division multiplexing (TDM)
networking.
Figure 5-5 shows a TDM network, and Figure 5-6 shows the board configurations on each NE
of the TDM network, on which the following base station services are transmitted:

2G base station services (transmitted in E1/T1 mode)

3G base station services (transmitted in FE mode)
Figure 5-5 TDM network
TDM E1
FE
NE1
FE
TDM E1
FE
NE4
NE 2
TDM E1
NE 3
FE
TDM E1
BTS
Issue 02 (2012-07-31)
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OptiX OSN 550 Multi-Service CPE Optical
Transmission System
Product Overview
5 Networking and Application Scenarios
Figure 5-6 Board configurations on each NE of the TDM network
NE1
PCXLG
PCXLG
NE6
SP3D
EFS8
FE
E1
NE2
FE
PCXLG
NE4
PCXLG
PCXLG
SP3D
EFS8
NE6
EFS8
PCXLG
NE6
SP3D
E1
E1
FE
NE3
PCXLG
PCXLG
NE6
EFS8
FE
SP3D
E1
BTS
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OptiX OSN 550 Multi-Service CPE Optical
Transmission System
Product Overview
6
6 Network Management System
Network Management System
About This Chapter
The OptiX OSN 550 is uniformly managed by the transmission network management system
(NMS) and local craft terminal (LCT) through the ETH port. The OptiX OSN 550 supports
the Simple Network Management Protocol (SNMP).
The NMS maintains the OSN, SDH, Metro, and DWDM network elements (NEs) on an entire
network. The NMS can implement end-to-end configurations for TDM and packet services.
The OptiX OSN 550 complies with ITU-T Recommendations. The equipment adopts a
management information model and an object-oriented management technology. With the
NMS, the equipment can exchange information with the NE software through the
communication module to manage alarms and performance events in a centralized manner. In
addition, end-to-end configuration on the management plane can be achieved.
The OptiX OSN 550 supports SNMPv2/SNMPv3, which allows a third-party NMS to
monitor equipment performance.
6.1 Network Management
This chapter describes the network management system, inter-NE communication
management, and intra-NE communication management.
6.2 DCN Management
Reliable network management ensures proper running of a network, and therefore
transmission of network management data becomes very critical. The data communication
network (DCN) is a network management data communication channel, with which users can
remotely manage and maintain NEs.
6.1 Network Management
This chapter describes the network management system, inter-NE communication
management, and intra-NE communication management.
Figure 6-1 shows network management.
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OptiX OSN 550 Multi-Service CPE Optical
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Product Overview
6 Network Management System
Figure 6-1 Network management
Secondary
U2000
Primary
U2000
External DCN
Switch
Router
NON-GNE
Site D
NON-GNE
Site E
GNE
Site A
GNE
Site C
Master
NON-GNE
Site F
Slave
NON-GNE
Site B
Slave
OptiX OSN 8800
Subrack
Fiber
OptiX OSN 1800
U2000
Web LCT
OptiX OSN 550/500
Network cable
Figure 6-1 illustrates a network that has Huawei equipment deployed at different layers: NEs at sites
A-D are OptiX OSN 8800 NEs, NEs at site E are OptiX OSN 1800 NEs, and NEs at site F are OptiX
OSN 550/500 NEs.
In Figure 6-1,

Network management system: U2000 and U2000 LCT

Inter-NE communication management:
−
The NEs at sites A and C are gateway NEs (GNEs) and are connected to the external DCN through a switch
or router. All the other NEs are non-GNEs that communicate with the NMS through GNEs.
−
The NEs between sites A and D are connected with fibers and use the HWECC or IP over DCC protocol to
exchange information over ESC/OSC channels.
−
The NEs between sites E and C are connected with fibers and use the HWECC or IP over DCC protocol to
exchange information over ESC channels.
−
The NEs between sites F and C are connected with fibers and use the HWECC or IP over DCC protocol to
exchange information over inband channels.
−
Some NEs between sites A and F (NEs connected to an optical or electrical transmission device, such as
NEs at site B) are connected with network cables, and use the HWECC or IP over DCC protocol to
exchange information over Ethernet channels (at NM_ETH ports).

Intra-NE communication management: The master and slave subracks implement
intra-NE communication for each NE at sites A-D. One NE at site A has three subracks
(one master is connected to two slaves).
Network management involves the following aspects:
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OptiX OSN 550 Multi-Service CPE Optical
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Product Overview
6 Network Management System
Network Management System
The network management system (NMS) provides unified management for OptiX equipment.
In compliance with associated ITU-T Recommendations, the NMS uses a standard
information management model and object-oriented management technology.
The NMS manages alarms, performance, configurations, communication, security, and
topologies of the entire optical transmission system. The NMS also gives users end-to-end
management capabilities. An NMS helps to improve network quality, lower maintenance costs,
and ensure efficient utilization of network resources.
The NMS includes two sets of network management software: iManager U2000 (U2000) and
iManager U2000 LCT (U2000 LCT). The U2000 is usually installed at a network
management center, and most equipment is managed remotely. The U2000 LCT provides the
ability to configure and maintain individual NEs. The U2000 LCT is usually installed on a PC
for local access to equipment.
Inter-NE Communication Management
Inter-NE communication management is implemented based on data communication
networks (DCNs). A DCN consists of NMSs, GNEs, non-GNEs, and the connections between
them. Both NMSs and NEs are nodes of a DCN. The DCN between the NMSs and NEs is
called the external DCN, and the DCN between NEs is called the internal DCN.

An external DCN is a local area network (LAN) or a wide area network (WAN) and uses
the TCP/IP protocol for communication. It provides communication between NMSs and
between the NMS server and GNEs.

An internal DCN uses the HWECC or TCP/IP protocol to provide communication
between NEs. NEs support inband DCN and outband DCN. The outband DCN uses
DCC overhead bytes as physical DCN channels. The inband DCN uses Ethernet service
channels as physical DCN channels.
6.2 DCN Management
Reliable network management ensures proper running of a network, and therefore
transmission of network management data becomes very critical. The data communication
network (DCN) is a network management data communication channel, with which users can
remotely manage and maintain NEs.
Table 6-1 lists the DCN solutions that the OptiX OSN 550 supports.
Table 6-1 DCN solutions that the OptiX OSN 550 supports
Item
Inband DCN
Outband DCN
Purpose and
benefit
NM information is transmitted
through the service channels
provided by managed equipment.
Therefore, no extra equipment or
DCN is required. This reduces
operating expenditure.
NM information is transmitted on
non-service channels.
Feature

High reliability: Outband DCN uses
dedicated maintenance channels.
Issue 02 (2012-07-31)
Flexible networking: NM
information is encapsulated
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OptiX OSN 550 Multi-Service CPE Optical
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Product Overview
Item
6 Network Management System
Inband DCN
into Ethernet frames and
carries a fixed VLAN ID to
get separated from the service
data. The NM information is
transmitted with services on
service channels.
Networking
technology
Outband DCN
Therefore, an NMC can construct a
DCN network with managed
equipment in various ways, such as
E1 private lines and Ethernet; in
addition, you can obtain NM
information in time even when
faults occur on service channels.

Configurable VLAN priorities
for inband DCN packets

HWECC

HWECC

IP

IP

OSI
Application
scenario
Packet network
TDM network
Resource
allocation
mode
N/A
Channel types: D1-D3 and D4-D12
Issue 02 (2012-07-31)
Running mode:

Mode 1: 32 channels using
D1-D3 bytes

Mode 2: 12 channels using
D1-D3 bytes or 6 channels using
D4-D12 bytes
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OptiX OSN 550 Multi-Service CPE Optical
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Product Overview
7
7 Operation and Maintenance
Operation and Maintenance
Routine equipment maintenance and troubleshooting are essential to ensure that a network
runs properly. The OptiX OSN 550 provides strong maintenance capabilities.
Table 7-1 lists the maintenance functions that the OptiX OSN 550 supports.
Table 7-1 Maintenance functions that the OptiX OSN 550 supports
Applica
tion
Scenari
o
Function
Description
Routine
maintena
nce
Alarm and
performance
management

Provides audible and visual alarms warn of
emergencies to help network administrators take
prompt action.

Provides running status indicators and alarm indicators
on all boards to help administrators locate and handle
faults quickly.

Provides the alarm input and output function to
facilitate alarm collection for external devices.

Dynamically monitors the operation and alarm status
of all NEs using the NMS.

Detects alarms and performance of a standby system
control board.

Stores results of sixteen consecutive 15-minute
performance monitoring events, that is, four hours of
performance events divided into 15-minute segments.

Stores results of six consecutive 24-hour performance
monitoring events, that is, six days of performance
events divided into 24-hour segments.
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RMON
Monitors data from different network segments on a
transmission network. RMON supplements simple
Ethernet performance management tools, and can be used
on a wide range of networks.
Upgrade and
loading of board

Supports in-service upgrades and loading of board
software and NE software.
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OptiX OSN 550 Multi-Service CPE Optical
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Product Overview
Applica
tion
Scenari
o
OAM
Function
Description
software and NE
software

Supports remote loading of board software and field
programmable gate array (FPGA).

Supports error-proof loading and resumable loading.
Voltage check
Measures input voltages and detects undervoltage and
overvoltage states.
Automatic search
for optical fibers
Supports the fiber auto-discovery function on the NMS.
Port impedance
query
Supports the query of port impedance on the NMS.
Optical module
information query
Allows the NMS to query information about optical
modules, including single-mode/multi-mode, rate level,
supplier, production date, and wavelength.
Outdoor cabinet
monitoring
Monitors outdoor cabinets by means of the monitoring
ports on AUX boards.
Power
consumption
control

Computes system power consumption.

Monitors the total power consumption of an NE, and
reports an alarm if the total power consumption
exceeds the power consumption threshold of the NE.

Supports the query of the power consumption of an
NE/board by using the NMS.
Storage of the ID
and IP address of
an NE
The backplane stores IDs and IP addresses of NEs, and
the active SCC board reads these from the backplane.
Port information
query
Queries communication protocols in use, status, functions,
and names of ports used for external communication and
physical ports connected to networks.
ETH OAM
Uses outband packets to detect and monitor the
connectivity and performance of service trails. The
process does not affect services.
ATM OAM
Detects and locates ATM faults, and monitors ATM
performance.
MPLS OAM

Detects and locates faults on an MPLS network, and
works with MPLS APS to protect services.

MPLS OAM mechanisms include tunnel OAM and
PW OAM. Tunnel OAM operates at the tunnel layer,
and PW OAM operates at the PW layer.

MPLS-TP OAM can detect, identify, and locate faults
on packet switched networks, and notify NEs of the
faults, so the NEs can implement protection switching.

MPLS-TP OAM mechanisms include tunnel OAM
MPLS-TP OAM
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7 Operation and Maintenance
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OptiX OSN 550 Multi-Service CPE Optical
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Applica
tion
Scenari
o
Function
7 Operation and Maintenance
Description
and PW OAM. Tunnel OAM operates at the tunnel
layer, and PW OAM operates at the PW layer.
Fault
locating
Other
Issue 02 (2012-07-31)
One-click data
collection

Provides a one-click data collection function for fault
data to reduce data collection time before service
recovery.

Users can collect fault data selectively and can stop a
collection process manually.
Loopback
Service boards support inloops and outloops on ports to
facilitate fault location.
Remote
maintenance
Maintenance personnel can use a public telephone
network to remotely maintain the OptiX OSN 550
equipment.
PRBS

An NE enabled with the PRBS function can be used as
an instrument to transmit and receive unframed
services in order to analyze whether service paths are
faulty.

An NE enabled with the PRBS function can be used to
analyze itself or the entire network.

The PRBS function substitutes for a test instrument
during deployment or fault location.
Warm/Cold resets
System control, switching, and timing boards and service
boards support warm and cold resets. Warm resets do not
affect services.
Hot swap

Service boards, system control, switching, and timing
boards, power supply boards, and fan boards support
hot swapping.

Pluggable optical modules can be hot-swapped.

Service cables and auxiliary cables can be
hot-swapped.
Hot patch loading
Supports the hot patch loading function. Running
software can be upgraded without being interrupted.
Alarm reporting
upon removal of
important
peripheral storage
devices
When a CF storage card is removed, the equipment
reports a security alarm.
NSF
NSF stands for Non-interrupted Service Forwarding.
When the control plane of the equipment is faulty, the
NSF function ensures that the data services are not
interrupted, thus ensuring transmission of the key services
on the network.
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OptiX OSN 550 Multi-Service CPE Optical
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Product Overview
8 Technical Specifications
8
Technical Specifications
About This Chapter
This chapter describes general specifications, packet performance indicators, TDM
performance indicators, port specifications, optical module specifications, indicator status
explanation, and environment indicators of the equipment.
8.1 General Specifications
This section lists the chassis dimensions, weight, power consumption, heat consumption,
power supply performance, electromagnetic compatibility, and reliability.
8.2 Power Consumption and Weight of Each Board
This section lists the power consumption and weight of each board that the equipment
supports.
8.1 General Specifications
This section lists the chassis dimensions, weight, power consumption, heat consumption,
power supply performance, electromagnetic compatibility, and reliability.
Table 8-1 lists the general specifications of the OptiX OSN 550.
Table 8-1 General specifications of the OptiX OSN 550
Item
Description
Dimensions
88 mm x 442 mm x 220 mm (H x W x D)
Weight
3.5 kg (net weight of a chassis that contains one fan board and two PIU
boards)
Power
consumptio
n

Maximum power consumption: 240 W

Typical power consumption: 149 W
Heat
consumptio

Issue 02 (2012-07-31)
Board configuration for typical power consumption: 2 x PCXLX + 3 x
EM6F + 1 x MD1 + 1 x FAN + 2 x PIU.
Maximum heat consumption: 819 BTU/h
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OptiX OSN 550 Multi-Service CPE Optical
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Product Overview
8 Technical Specifications
Item
Description
n

Typical heat consumption: 485 BTU/h
Power
supply
performanc
e

DC power supply

−
Rated voltage: -48 V or -60 V
−
Voltage range: -38.4 V to -72 V
AC power supply
−
Rated voltage: 110 V or 220 V
−
Voltage range: 100 V to 240 V
Fuse
capacity

DC power supply: 20 A

AC power supply: 5 A
Electromag
netic
compatibilit
y
Complies with EMC Class A.
Predicted
reliability

System availability: 0.9999965

Annual average repair rate: < 1.5%

Mean time to repair (MTTR): 1 hour

Mean time between failures (MTBF): 33.08 years
8.2 Power Consumption and Weight of Each Board
This section lists the power consumption and weight of each board that the equipment
supports.
Table 8-2 lists the power consumption and weight of each board that the OptiX OSN 550
supports.
Table 8-2 Power consumption and weight of each board that the OptiX OSN 550 supports
Board
Power Consumption (Room
temperature (25°C))(W)
Weight (kg)
PCX

PCXLX: 45
0.80

PCXX: 44.5

PCXLG/PCXGA: 37

PCXGB: 36.5
CXL
21
0.50
MD1
12.2
0.50
EM6T
10.4
0.37
EM6F
11.3
0.40
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OptiX OSN 550 Multi-Service CPE Optical
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Product Overview
8 Technical Specifications
Board
Power Consumption (Room
temperature (25°C))(W)
Weight (kg)
EF8F
23
0.55
EG4C

4xGE optical ports: 12.5

4xGE electrical ports: 11.0
0.45
SL1D
3.5
0.30
SL4D
3.7
0.30
SL1Q
4.5
0.30
SP3D
11.9
0.85
PL3T
4.5
0.30
EFS8
13.0
0.65
EGT1
8.3
0.60
DMD2
0.5
0.72
AUX
2.2
0.30
PIU
0.5
0.12
APIU
20.0
1.93
FAN
12.0
0.30
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