RBS Description
RBS 6601
DESCRIPTION
RI F
RI E
RI D
RI C
RI B
RI A
ET B
ET A
TN A
LMT B
DUW 20 01
IDL
I
O
F
TN B
LMT A
AUX
EC
EC B
SAU
1 2
3 4
5 6
7 8
GPS
PWR
EC A
EC C
1 PW
R OU
T 2
-48V DC
22/1551-LZA 701 6001 Uen AA
Copyright
© Ericsson AB 2010–2011. All rights reserved. No part of this document may be
reproduced in any form without the written permission of the copyright owner.
Disclaimer
The contents of this document are subject to revision without notice due to
continued progress in methodology, design and manufacturing. Ericsson shall
have no liability for any error or damage of any kind resulting from the use
of this document.
Trademark List
All trademarks mentioned herein are the property of their respective owners.
These are shown in the document Trademark Information.
22/1551-LZA 701 6001 Uen AA | 2011-11-08
Contents
Contents
1
Introduction
1
2
Product Overview
1
2.1
Main Features
2
2.2
Optional Equipment
3
3
Technical Data
4
3.1
Dimensions
4
3.2
Space Requirements
5
3.3
Environmental Characteristics
6
3.4
Mains Supply Characteristics
9
3.5
System Characteristics
10
4
Hardware Architecture
11
4.1
Main Unit Overview
11
4.2
Position A - Support System
11
4.3
Position A1 - Fan Module
12
4.4
Position A2 - Movable Brackets
12
4.5
Position B - DU or TCU
12
5
Multistandard Configurations
12
5.1
Single Mode
13
5.2
Mixed Mode
13
6
Connection Interfaces
14
6.1
Position A - Earth Grounding Interface
14
6.2
Position B - Built-in External Alarm Interface
15
6.3
Position C - SAU Interface (Optional)
16
6.4
Position D - Power Interface
16
6.5
Position E - Site LAN Interface (Optional)
17
6.6
Position E - GPS Interface (Optional)
18
6.7
Position E - Optical Cables to the RRU or the AIR Unit
Interface
19
6.8
Position E - Transmission Interface
21
7
Transmission Standards
21
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RBS Description
7.1
Ethernet, Electrical (WCDMA and LTE)
22
7.2
Ethernet, Optical (Optional) (WCDMA and LTE)
22
7.3
E1, T1, and J1 (WCDMA Only)
23
7.4
E1 and T1 (GSM Only)
24
7.5
STM-1 (WCDMA Only)
24
8
Alarms
25
8.1
Built-in Ports for External Alarms
26
8.2
SAU
26
8.3
RRUS (LTE Only)
26
9
Standards, Regulations, and Dependability
27
9.1
Regulatory Product Approval
27
9.2
Dependability
29
9.3
Spare Parts
29
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Product Overview
1
Introduction
This document is a general description of the RBS 6601 main unit. A
description of the optical cables to the Remote Radio Units (RRUs) can be
found in Installing Optical Cables for Main-Remote Solutions. A description of
the RRUs can be found in Remote Radio Unit Description or if using RRU22,
see Technical Product Description, RRU in an RBS 3000 library. A description
of the Antenna Integrated Radio (AIR) unit can be found in Antenna Integrated
Radio Unit Description.
2
Product Overview
The RBS 6601 is a main-remote RBS and a member of the RBS 6000 family.
The RBS 6601 consists of an indoor main unit and a number of RRUs,
designed to be located near the antenna, or AIR units. An optical fiber cable
connects each RRU or AIR unit to the main unit, as shown in Figure 1. Optical
fiber cables are available in standard lengths from a few meters up to several
hundred meters.
The fiber network can also be extended or built using leased fiber networks.
In this case the extension and delay of the fiber network must be considered.
The equivalent supported distance between the main unit and the RRU or the
AIR unit is for WCDMA 40 km , and 15 km when using RRU22. For LTE and
GSM, consult the market representative.
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1
RBS Description
AIR / RRU
AIR / RRU
AIR / RRU
Optical
cable
Main
Unit
AIR / RRU
Ge0615C
Figure 1
RBS 6601
For WCDMA, the RBS is normally configured with up to three sectors with up to
four carriers. For GSM, normally up to three sectors with up to eight carriers
are configured and for LTE normally up to three sectors are configured. The
number of RRUs supported depends on the available radio configurations. The
configurations currently available are described in RBS Configurations.
Figure 2 shows the main unit with Digital Unit WCDMA (DUW).
RI F
RI E
RI D
RI C
RI B
RI A
ET B
ET A
TN A
LMT B
DUW 20 01
IDL
I
O
F
TN B
LMT A
AUX
EC
EC B
SAU
1 2
3 4
5 6
7 8
GPS
PWR
EC A
EC C
1 PW
R OU
T 2
-48V DC
Ge0614B
Figure 2
2.1
RBS 6601 Main Unit with DUW
Main Features
This section describes the main features of the RBS.
Note:
2
Not all features are supported by all RBS configurations. Current RBS
configurations can be found in RBS Configurations.
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Product Overview
The main features of the RBS 6601 are the following:
•
Includes a subrack-based main unit to be hosted in a 19-inch rack structure,
either an existing RBS or other standard racks
•
Has –48 V DC (two-wire) power supply
•
Supports external Global Positioning System (GPS)
•
Supports integrated external alarms
•
Supports single mode and mixed mode multistandard configurations.
Information on single mode and mixed mode multistandard configurations
can be found in Section 5 on page 12.
•
Can be configured with the Transport Connectivity Unit (TCU).
More information about the TCU can be found in Section 2.2.3 on page 4
and TCU Description.
2.2
Optional Equipment
The equipment presented in this section is optional and can be ordered
separately. It is not necessary for basic RBS functions.
All equipment is located outside the cabinet except for the TCU.
2.2.1
ASC, TMA, RETU, and RIU
The following mast- located units are placed close to the antenna:
•
Tower Mounted Amplifier (TMA)
•
Antenna System Controller (ASC)
•
Remote Electrical Tilt Unit (RETU)
•
RET Interface Unit (RIU)
All the units above are included in the AIR unit.
The TMA and the ASC are uplink amplifiers and improve the RX sensitivity.
The RETU enables remote tilt of the antenna system. A RETU can be
connected directly to an RRU or through an ASC or an RIU.
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3
RBS Description
2.2.2
External SAU
The Support Alarm Unit (SAU) is an alarm and connection unit that is externally
installed in a distribution frame that also includes Overvoltage Protection (OVP)
for external alarms and transmission.
2.2.3
TCU
The TCU is the common transmission module in a multistandard RBS 6000
used to realize a common transmission node for GSM and LTE.
The TCU supports backhauling of multstandard RBSs (including GSM,
WCDMA and LTE) over both Ethernet and E1/T1/J1 transmission services
with advanced QoS and shaping functionality minimizing the requirements on
the transport network.
The TCU is an 8U high and 31mm wide unit. It accepts -48 Volts standard RBS
voltage minimizing the need for extra power supply.
More information about the TCU can be found in TCU Description.
3
Technical Data
This section describes the physical characteristics, environmental data, and
the power supply of the RBS.
3.1
Dimensions
Table 1 lists the dimensions, weight, and color of the main unit.
Table 1
Dimensions, Weight, and Color
Dimensions
Height
66 mm (1.5 U)
Width
483 mm (19-inch)
Depth
350 mm
For more information about dimensions, see Figure 3.
Weight
Main unit fully equipped
4
< 10 kg
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Technical Data
Color
White
Reference number: NCS S 0502-B
66
EC B
SAU
1 2
3 4
5 6
7 8
EC A
483
EC C
1 PW
R OU
T 2
-48V DC
350
Unit of measurement: mm
Ge0598C
Figure 3
3.2
Dimensions
Space Requirements
This section describes the space requirements for installing the main unit in a
19-inch rack.
3.2.1
Installation Requirements
The main unit is 1.5 U high and can be installed top or bottom aligned in a
19-inch rack that complies with IEC 60297. Two main units can be installed
directly above each other.
The minimum distance between the rear of the main unit and the rear rack
wall is 50 mm for the exhaust air. If the rack is equipped with a door, the
minimum distance is 50 mm between the front of the main unit and the door,
to provide space for cables and air intake. The main unit's movable brackets
can be adjusted up to 80 mm horizontally to place the main unit in the best
position in the rack.
3.2.2
Site Layout
The main unit can be installed in free-standing racks or cabinets, without
contact with other cabinets, against a wall or back to back or side to side with
other cabinets. Information regarding placement of cabinets can be found in
the manual for the cabinet.
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5
RBS Description
A minimum distance of 200 mm must be left between the top of the rack and
the cable ladder and a minimum distance of 300 mm between the ceiling and
the cable ladder is required to provide adequate working space and to ensure
sufficient airflow, see Figure 4.
300
>200
Unit of measurement: mm
Figure 4
Ge0608B
Cable Ladder Installation Requirements
A minimum space of 1 m is recommended in front of the rack to provide
adequate working space.
3.3
Environmental Characteristics
This section describes the environmental characteristics of the RBS.
3.3.1
Operating Environment
The following is a list of values for the main unit normal operating environment:
6
Temperature
+5 to +50C
Relative humidity
5 to 85%
Absolute humidity
1 to 25 g/m3
Maximum temperature change
0.5C/min
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Technical Data
3.3.2
Heat Dissipation
The heat dissipation values listed in this section are intended only to form the
basis of the dimensioning of the site-cooling system. The heat dissipation
depends on the DU configuration which is shown in Table 2.
Table 2
3.3.3
Maximum Heat Dissipation, Main Unit
DU Configuration
Maximum Heat Dissipation, Main Unit
1 x DUW
295 W
2 x DUG
135 W
2 x DUL
240 W
1 x DUG + 1 x TCU 02
160 W
1 x DUL + 1 x TCU 02
210 W
Acoustic Noise for Main Unit
The acoustic noise levels corresponds to a free standing (not built-in) main unit
and are measured for typical traffic in accordance with ISO 3741, as described
in Table 3.
Table 3
Maximum Sound Power Level
Temperature (C)
5.8
+25 C
5.8
+30C
5.8
+45C
6.0
+20 C
3.3.4
Sound Power Level (LWA in Bel)
Ground Vibration
The following is a list of values of the RBS main unit resistibility to ground
vibrations:
Random vibration, normal operation
Maximum 0.02 m2/s3
Random vibration, exceptional
operation
Maximum 0.08 m2/s3
Random vibration, non-destruction
Maximum 0.15 m2/s3
Shock
Maximum 40 m/s2
Maximum level of Required Response
(1)
Spectrum (RRS)
50 m/s2 within 2 to 5 Hz
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RBS Description
Frequency range
1 Hz to 35 Hz
Time history
Verteq II
(1) As defined in EN 300 019-2-3.
3.3.5
Earthquake Requirements
To fulfill earthquake requirements, follow the instructions in the manual for
the rack.
3.3.6
Materials
The materials in the RBS are managed through the Ericsson lists of banned
and restricted substances, based on legal and market requirements.
8
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Technical Data
3.4
Mains Supply Characteristics
This section describes the power supply, power consumption, and fuse and
circuit breaker recommendations.
3.4.1
DC Power Supply Characteristics
The main unit is available with a two-wire -48 V DC power interface, as listed in
Table 4.
Table 4
3.4.2
DC Power Supply
Conditions
Values and Ranges
Nominal voltage
-48 V DC
Operating voltage range
-40.0 to -57.6 V DC
Non-destructive voltage range
0 to -60 V DC
Power Consumption
The power consumption of the main unit depends on the DU configuration. The
figures presented in Table 5 also includes power to an external SAU (10W).
Note:
Table 5
3.4.3
The following figures represents the maximum peak power consumption
and shall not be used for calculation of average energy consumption.
Maximum Power Consumption, Main Unit
DU Configuration
Maximum Power Consumption, Main Unit
1 x DUW
305 W
2 x DUG
145 W
2 x DUL
250 W
1 x DUG + 1 x TCU 02
170 W
1 x DUL + 1 x TCU 02
220 W
Fuse and Circuit Breaker Recommendations
The main unit external DC mains fusing must meet the following characteristics:
•
Fuse, type gL-gG-gD, in accordance with IEC/EN 60 269-1 and UL 248-8
•
Circuit breaker in accordance with IEC 60 947-2 and UL 489A
The fuse and cable recommendations given in Table 6 are based on peak
power consumption and give no information about power consumption during
normal operation. The minimum fuse rating depends on the DU configuration.
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9
RBS Description
If the node configuration is a dual support system configuration, each support
system requires a separate DC in cable and fuse.
Table 6
Fuse and Circuit Breaker Recommendations
Minimum Fuse Rating and
Cross-Sectional Cable Areas
Maximum Fuse Rating and
Cross-Sectional Cable Areas
Fuse Rating
Recommended
for Reliable (1)
Operation (A)
Cross-Sectional
Cable Area
Allowed Fuse
(2)
Rating (A)
Cross-Sectional
Cable Area
DC-powered
15 (with 1 x DUW)
4 mm2
20
4 mm2
-48 V, two-wire
6 (with 1 or 2 DUG)
DC Main Power
(3)
(3)
15 (with 1 or 2
DUL)
(1) The recommended fuse rating corresponds to peak load and depends on the DU configuration.
(2) Absolute maximum fuse class in accordance with RBS design restrictions.
(3) Standard cable delivered with RBS 6601
3.5
System Characteristics
This section describes the system characteristics of the RBS.
3.5.1
RF Electromagnetic Exposure
General information about Radio Frequency (RF) Electromagnetic Fields (EMF)
can be found in Radio Frequency Electromagnetic Fields.
Information about radio access specific compliance boundaries for
electromagnetic exposure can be found in Radio Frequency Electromagnetic
Exposure.
3.5.2
Software
Information about software dependencies can be found in Compatibilities for
Hardware and Software.
3.5.3
Radio Configurations
Information about available radio configurations can be found in RBS
Configurations.
10
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Hardware Architecture
4
Hardware Architecture
This section contains information about both mandatory and optional hardware
units, based on a fully equipped main unit.
Note:
4.1
The currently available configurations are described in RBS
Configurations.
Main Unit Overview
This section contains an overview of the standard hardware units required,
regardless of configuration or frequency.
Figure 5 shows the location and Table 7 describes the hardware units in the
main unit.
A
A1
A2
EC B
SAU
1 2
3 4
5 6
7 8
B
EC A
EC C
1 PW
R OU
T 2
-48V DC
A2
Ge0607C
Figure 5
Table 7
Hardware Units in Main Unit
Position
Name of Units
Number of Units
A
Support System
1
A1
Fan Module
1
A2
Movable Brackets
2
DU or TCU
1-2
B
4.2
Location of Hardware Units in Main Unit
Position A - Support System
The support system controls the climate system including the fans. The support
system is also a DC interface for the RBS and distributes power to the DUs and
to the external SAU. An external EC bus and built-in alarms is supported.
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11
RBS Description
Note:
For WCDMA, it is possible to extend the main unit with a second
support system in a dual support system, where two connected support
systems constitute one RBS. The support systems in the RBS host one
DUW each. The fans in the primary and the secondary support system
are both controlled by the DUW in the primary support system. Each
support system provides power to its hosted DUW. All other external
RBS connections are made to the primary DUW and support system
only.
This includes connections to the supports systems built-in external
alarm interface and to an optional SAU, which are then supported from
the primary support system only.
For GSM or LTE it is possible to put 2 DUs in the same support system.
4.3
Position A1 - Fan Module
The fans are located in a replaceable fan module at the back of the main unit.
The fans cool the DU and the support system's internal electronics.
4.4
Position A2 - Movable Brackets
The movable brackets can be placed in a 0 mm, a 58 mm, or an 80 mm position
from the front to ensure that the main unit fits in racks with different depths.
4.5
Position B - DU or TCU
The DU provides switching, traffic management, timing, baseband processing
and radio interface.
More information about DU can be found in Digital Unit Description.
The TCU is the common transmission module in a multistandard RBS. The
TCU is always installed together with one DU in the cabinet.
More information on the TCU can be found in TCU Description.
5
Multistandard Configurations
A multistandard RBS supports installation of nodes of different radio access
systems in the same cabinet. The nodes must always be configured as primary
or secondary nodes.
12
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Multistandard Configurations
In a multistandard RBS, the support system is shared between the nodes in
the cabinet. Each radio access system node is managed separately using its
own radio standard tools, but only the primary node controls and supervises the
support system.
Each node calculates its own cooling requirement; however, the primary node
determines the fan speed according to the highest cooling requirement.
Multistandard configurations can be either single mode or mixed mode
configurations. The following sections describe single mode and mixed mode
configurations in more details.
5.1
Single Mode
Single mode allows an RBS to be configured with different radio access
systems within the same cabinet.
More information on single mode can be found in Expanding to Multi-Standard
Single Mode, RBS Configurations and Support System
Single mode allows the following combination of radio access systems:
•
5.2
GSM and LTE
Mixed Mode
Mixed mode allows nodes of different radio standards within one or two
cabinets to share radio and antenna resources.
Mixed mode requires a license; more information can be found in Mixed Mode
in Multistandard RBS.
More information on mixed mode can be found in Expanding to Mixed Mode in
Multistandard RBS, RBS Configurations and Mixed Mode in Multistandard RBS.
Mixed mode allows the following combination of radio access systems:
•
GSM and WCDMA (two cabinets)
•
GSM and LTE (one cabinet)
Supported configurations and frequencies can be found in RBS Configurations.
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13
RBS Description
6
Connection Interfaces
This section contains information about the external connection interfaces of
the main unit.
Figure 6 shows the location and Table 8 describes the connection interfaces.
E
C
B
EC B
A
SAU
1 2 3 4 5 6 7 8
EC A
EC C
1 PWR OUT 2
-48V DC
D
Ge0597C
Figure 6
Table 8
Connection Interface Locations
Connection Interfaces
Position
Description
A
Earth grounding interface (positioned at the back of the main unit)
B
Built-in external alarm interface
C
SAU power interface
D
Power connection interface
E
DU/TCU with interfaces to:
• LAN interface
• GPS interface
• Optical cable interface to the RRU or the AIR unit
• Transmission
6.1
Position A - Earth Grounding Interface
All equipment must be connected to the same site Main Earth Terminal (MET)
inside the equipment room using a 16 mm2 earth grounding cable.
The earth grounding point is located on the back of the main unit and consists
of an M8 screw, nut, and washers as shown in Figure 7.
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Connection Interfaces
Socket 13 mm
15 Nm
Ge0596B
Figure 7
6.2
Earth Grounding Interface
Position B - Built-in External Alarm Interface
The main unit supports 8 built-in alarm ports for customer specific external
alarms. An alarm can be triggered by an open or closed condition.
The external alarms are connected to a 8x2 pole detachable socket connector,
as shown in Figure 8.
SAU
1 2 3 4 5 6 7 8
EC A
EC C
-48V DC
EC B
SAU
1 2 3 4 5 6 7 8
EC A
EC C
1 PWR OUT 2
-48V DC
Ge0604C
Figure 8
Built-in External Alarm Interface
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15
RBS Description
6.3
Position C - SAU Interface (Optional)
The SAU is optional and is installed outside the cabinet. Power is supplied from
the main unit to the SAU via the 10 pole RJ-45 connector as shown in Figure 9.
SAU
1 2 3 4 5 6 7 8
EC A
EC C
-48V DC
EC B
SAU
1 2 3 4 5 6 7 8
EC A
EC C
1 PWR OUT 2
-48V DC
Ge0610C
Figure 9
6.4
SAU Interface
Position D - Power Interface
Incoming two-wire -48 V DC power is connected by a two-pole connector. The
power cable must have a cross-sectional area of 4 mm2. The main unit must be
connected to an external fuse. More detailed information about cross-sectional
cable areas and fuse sizes can be found in Section 3.4 on page 9.
The connection interface is shown in Figure 10.
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Connection Interfaces
EC C
-48V DC
EC B
SAU
1 2 3 4 5 6 7 8
EC A
EC C
1 PWR OUT 2
-48V DC
Ge0653C
Figure 10
6.5
Power Connection Interface
Position E - Site LAN Interface (Optional)
In WCDMA the Site LAN, and in LTE the Local Maintenance Terminal (LMT), is
used to communicate with the RBS Element Manager (EM). A client can be
connected to the DU for communication and service purposes through the
RBS EM.
In GSM, Site LAN is used to communicate with the Operation and Maintenance
Terminal (OMT).
The Site LAN interface in the DU occupies port LMT B and consists of an RJ-45
connector as shown in Figure 11.
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17
RBS Description
LMT B
Ge0618C
Figure 11
6.6
Site LAN Interface in DU
Position E - GPS Interface (Optional)
The RBS can be optionally connected to a GPS unit, which is used for timing
synchronization of the RBS.
The GPS interface in the DU consists of an RJ-45 connector as shown in
Figure 12.
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Connection Interfaces
GPS
Ge0606C
Figure 12
6.7
GPS Interface in DU
Position E - Optical Cables to the RRU or the AIR Unit
Interface
The connection between the main unit and the RRU or the AIR unit is made
by an optical cable through an Supported Small Form-factor Pluggable (SFP)
module. Optical fiber cables are available in standard lengths from a few
meters up to several hundred meters.
For longer distances between the main unit and an RRU or an AIR unit and for
greater connection flexibility in general, an existing optical fiber transmission
network can be used to increase the total length of the optical cable. Optical
cables are connected to the optical fiber transmission network by a connection
box.
The supported scenarios for connection of optical cables between a main unit
and an RRU or an AIR unit are shown in Figure 13.
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19
RBS Description
1)
RRU / AIR
2)
RRU / AIR
LC/ODC
LC/ODC
Optical Cables
LC
Optical
Cables
Dark Fiber
Network
LC
Optical Cables
LC/ODC
LC
LC
Main Unit
Main Unit
Ge0623D
Figure 13
Optical Cables Connection Scenarios
The optical cable interface on the main unit is shown in Figure 14.
Ge0595C
Figure 14
Optical Cable Interface
Specific information about optical cables, can be found in Installing Optical
Cables for Main-Remote Solutions.
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Transmission Standards
6.8
Position E - Transmission Interface
Several transmission alternatives are available. The alternatives with their
corresponding cable types are described in Section 7 on page 21.
7
Transmission Standards
This section describes the transmission standards supported by the RBS.
The following transmission alternatives are available:
•
Electrical Ethernet transmission (WCDMA and LTE only)
•
Optical Ethernet transmission (WCDMA and LTE only)
•
E1/T1/J1, electrical transmission (WCDMA only)
•
E1/T1, electrical transmission (GSM only)
•
STM-1 (Synchronous Transport Module level-1) (WCDMA only)
The transmission standards are listed in Table 9.
Table 9
Transmission Standards
Transmission
Standard
Transmission
Capacity
(Mbps)
Cable Impedan
ce ( )
Cable Type
Physical Layer
Ethernet
(electrical)
100/1,000
100
Balanced lines
IEEE 802.3-100/1000Ba
se-T
Ethernet (optical)
1,000
Max attenuation
0.5 dB/cabling
Optical fiber
SFP connectors:
• 1000Base-SX
• 1000Base-LX
• 1000Base-LX10
• 1000Base-LX40
• 1000Base-ZX
• 1000Base-BX10
• 1000Base-BX20
E1
2.0
120, twisted pair
Balanced lines
ETSI ETS 300 166 &
ITU-T G.703
T1
1.5
100, twisted pair
Balanced lines
ANSI T1.403
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21
RBS Description
Transmission
Standard
Transmission
Capacity
(Mbps)
Cable Impedan
ce ( )
Cable Type
Physical Layer
J1
1.5
100, twisted pair
Balanced lines
Japan JT-I.431a (ITU-T
I.431)
1.5
110, twisted pair
Balanced lines
Japan JT-G.703 (ITU-T
G.703)
155.5
Max attenuation
12 dB/cabling
Optical fiber
SFP connectors:
STM-1
• S-1.1
• L-1.1
7.1
Ethernet, Electrical (WCDMA and LTE)
The electrical Ethernet connection interface in the DU is equipped with a female
RJ-45 connector and occupies position TN A.
Figure 15 shows the electrical Ethernet connection interface.
ET B
ET A
TN A
Ge0602D
Figure 15
7.2
Electrical Ethernet Connection Interface
Ethernet, Optical (Optional) (WCDMA and LTE)
The optical Ethernet connection interface in the DU is equipped with an optical
connector and occupies position TN B.
When using the DU optical transmission, one compatible SFP module is
needed.
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Transmission Standards
Figure 16 shows the optical Ethernet connection interface.
RI B
RI A
TN B
IDL
Ge0609D
Figure 16
7.3
Optical Ethernet Connection Interface
E1, T1, and J1 (WCDMA Only)
The E1, T1, and J1 connection interface in the DU occupies position ET A and
ET B and includes two ports each in an RJ-45 connector as shown in Figure 17.
ET B
ET A
Ge0601C
Figure 17
E1, T1, and J1 Connection Interface
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RBS Description
7.4
E1 and T1 (GSM Only)
The E1 and T1 connection interface in the DU can be equipped with two female
RJ-45 connectors and occupies positions ET A and ET B.
Figure 18 shows the E1 and T1 transmission interface.
Detailed information on the DU can be found in Digital Unit Description.
ET B
ET A
Ge1142A
Figure 18
7.5
E1 and T1 Connection Interface
STM-1 (WCDMA Only)
The DU supports the transmission standard STM-1 and requires a compatible
SFP module. This interface occupies position TN B. Figure 19 shows the
STM-1 transmission interface.
Note:
Use only SFP modules approved and recommended by Ericsson.
These modules fulfill the following:
•
Compliance with Class 1 Laser Product safety requirements
defined in standard IEC 60825-1.
•
Certification according to general safety requirements defined in
standard IEC 60950-1.
Information about recommended SFP modules can be obtained from
your Ericsson sales representative.
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Alarms
RI B
RI A
TN B
IDL
Ge0609D
Figure 19
8
STM-1 Transmission Interface
Alarms
This section describes the customer-specific external alarms.
The main unit provides built-in ports for external alarms and supports
connection to an optional external SAU.
Alarms ports are also provided by most RRUs, see the corresponding RRU
documentation.
Note:
These RRU alarm ports are currently supported in LTE and WCDMA
Single Mode node configurations.
There are no alarm ports on the AIR unit.
Each alarm can be configured to be triggered by the following two alarm
conditions:
•
Closed loop condition
An alarm is triggered when an open switch is closed.
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RBS Description
•
Open loop condition
An alarm is triggered when a closed switch is opened (default alarm
condition).
8.1
Built-in Ports for External Alarms
The main unit provides built-in ports for eight external alarms.
Table 10 lists some major characteristics related to the handling of external
alarms in the main unit.
Table 10
8.2
External Alarms and Output Characteristics
Alarm Input Port Details
Characteristics
Number of input ports
8
Maximum sensed impedance for a closed loop
condition
Closed (less than 3 k )
Minimum sensed impedance for a open loop
condition
Open (greater than 100 k )
Maximum current sourced from port interface
5.0 mA
Maximum voltage sourced from port interface
15 V
SAU
The optional SAU can handle up to 32 external alarms. The SAU is not included
in the main unit but is installed in an external DF-OVP and is connected to the
main unit by a cable.
More information about the SAU, can be found in SAU Description.
8.3
RRUS (LTE Only)
LTE provides support for external alarm ports on the RRUS. Information on
RRUS external alarm interfaces and installation can be found in Installing
Remote Radio Units.
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Standards, Regulations, and Dependability
9
Standards, Regulations, and Dependability
This section presents a brief overview of standards, regulatory product
approval, and Declaration of Conformity.
Declaration of Conformity
"Hereby, Ericsson AB, declares that this RBS is in compliance with the essential
requirements and other relevant provisions of Directive 1999/5/EC."
9.1
Regulatory Product Approval
The RBS complies with the following market requirement:
•
European Community (EC) market requirements, R&TTE Directive
1999/5/EC
Alert Mark (Class 2 equipment) Restrictions to use the
apparatus may apply in some countries or geographic areas. Individual
License to use the specific radio equipment may be required.
Apparatus may include Radio Transceivers with support for frequency
bands not allowed or not harmonized within the European Community (EC).
•
9.1.1
FCC and ETL requirements
Safety Compliance
In accordance with market requirements, the RBS complies with the following
product safety standards and directives:
International
•
IEC 60 950-1:2001, Ed. 1
•
IEC 60 950-1:2005, Ed. 2
•
IEC 60215 (1987) and Amd. 2
Europe
•
EN 60 215:1989 and Amd. 1 and 2
•
EN 60 950-1:2006, Ed. 2
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RBS Description
North American
•
9.1.2
UL 60950-1, Ed. 2/CSA-C22.2 No. 60950-1-07, Ed.2
EMC Fulfilment
The RBS complies with the following Electromagnetic Compatibility (EMC)
standards:
International
•
3GPP TS25.113
Europe
•
ETSI EN 301 481-1
•
ETSI EN 301 481-8
•
ETSI EN 301 489-1
•
ETSI EN 301 489-23
North America
•
9.1.3
FCC CFR 47 part 15
Radio Compliance
The RBS complies with the following radio standards:
International
•
3GPP TS25.141
Europe
•
ETSI EN 301 502
•
ETSI EN 301 908-1
•
ETSI EN 301 908-3
North America
•
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FCC CFR 47 part 2X (X is frequency band dependent)
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Standards, Regulations, and Dependability
9.1.4
Marking
To show compliance with legal requirements the product is marked with the
following label:
Europe
•
CE marking
North America
•
9.2
FCC and ETL marking
Dependability
The RBS is designed for a technical service life of 20 years (in 24-hour
operation). The following preventive maintenance conditions must be fulfilled to
guarantee the availability of the RBS:
•
Fan module
The fan module has to be inspected on a regular basis (and cleaned if
necessary). Ericsson recommends replacing the fan module every 5 years.
9.3
Spare Parts
The RBS adheres to the Ericsson Serviceability and Spare Part Strategy.
Information about spare parts can be found in Spare Parts Catalog.
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