HUAWEI BSC6910 GSM V100R021C10
Quick Installation Guide
Issue: 01a
Date: 2019-04-10
HUAWEI TECHNOLOGIES Co., Ltd.
Installation Procedure
1
Copyright © Huawei Technologies Co., Ltd. 2019. All rights reserved.
1 Installing Power Cables and PGND Cables
a
Introduction to Power Cables and PGND Cables
a
• Based on customer requirements, one-hole OT terminals or two-hole OT terminals can be installed
on power cables and PGND cables. The OT terminals must be made on site. Upon delivery, OT
terminals of inter-cabinet PGND cables are available and have been installed on one end. This
document uses one-hole OT terminals as an example. OT terminals (M6) are used for the –48 V
and RTN power cables on the cabinet side, OT terminals (M8) are used for PGND cables, and OT
terminals used on the PDF side are determined depending on the situation.
• The torque for fastening screws is as follows: 5.5 Kgf.cm for M3 screws and 50 Kgf.cm for M6
screws (torque range: ±10%).
•
The international unit of torque is Newton (N.m), and the engineering unit is kilogram force
centimeter (Kgf.cm). The conversion relationship is as follows: 0.98 N.m = 10 Kgf.cm.
Name
Type of
Connectors at
Both Ends
Connection Positions
at Both Ends
Quantity
One-hole OT
terminal
–48 V DC input terminal
on the power entry
module (PEM) in a
subrack
One-hole OT
–48 V DC output
terminal
terminal on the power
distribution frame (PDF)
External
RTN power
cable
One-hole OT
terminal
RTN input terminal on
the PEM in a subrack
One-hole OT
terminal
RTN output terminal on
the PDF
External
One-hole OT
Ground bolt at the rear of
1 per
PGND cable
terminal
the subrack top
subrack
One-hole OT
terminal
PDF ground point
Inter-cabinet
One-hole OT
Ground point of the
PGND cable
terminal
mounting bar of the
subrack
One-hole OT
terminal
Ground point of the
mounting bar of the
subrack
External –48
V DC power
cable
2
4 per
subrack
4 per
subrack
3 every two
adjacent
cabinets
Appearance
1 Installing Power Cables and PGND Cables
b
Installing Power Cables and PGND Cables (Overhead Cabling)
When installing the cables, set the power distribution switches for the PDF and PEM output
terminals to "OFF".
Attach temporary labels to the cable at both ends.
Crimp the power cable terminals and PGND cable terminals on the cabinet
side.
Use diagonal pliers to cut the rectangular cover plate at the top of the N68E-22
cabinet, and route the power cables into the cabinet.
Connect the power cables on the
cabinet side.
Connect the PGND cables on the
cabinet side.
Connect the power cables
and PGND cables on the
PDF side.
3
1 Installing Power Cables and PGND Cables
c
Installing Power Cables and PGND Cables (Underfloor Cabling)
When installing the cables, set the power distribution switches for the PDF and PEM output
terminals to "OFF".
Attach temporary labels to the cable at both ends.
Crimp the power cable terminals and PGND cable terminals on the cabinet
side.
Tie a lifting sling to the power cables and
PGND cables to lift them up to the top of the
cabinet along the middle column in the
cabinet.
Use diagonal pliers to cut the rectangular
cover plate at the top of the N68E-22
cabinet, and route the power cables into
the cabinet.
Connect the power cables on the cabinet
side.
Connect the PGND cables on the
cabinet side.
Connect the power cables and PGND
cables on the PDF side.
4
1 Installing Power Cables and PGND Cables
d
Installing PGND Cables on Adjacent Cabinets
When installing the cables, set the power distribution switches for the PDF and PEM output
terminals to "OFF".
Ensure that three PGND cables are present on the mounting bar at the back of
the adjacent cabinets and one end of these cables is pre-installed.
Interconnect the three PGND cables at the upper, middle, and lower parts of
the mounting bar at the back of the adjacent cabinets.
5
2 Checking and Setting the DIP Switches on the Subracks
1. Appearance of the DIP switches and meanings of DIP bits
DIP switch
Rear view of
the subrack
Set the DIP switch on the subrack and then power on the subrack. If the DIP switches
are set after the subrack is powered on, power off and then power on the base station
controller. Otherwise, faults such as failure in loading service board software will occur.
The DIP bits are numbered in ascending order from bit 1 to bit 8. 0 indicates that a DIP
switch is on, and 1 indicates that a DIP switch is off.
DIP Bit
Description
1 to 5
Subrack numbers
6
Odd parity check bit
7
Reserved bit, not defined, usually set to 0 (ON)
8
Startup type of a subrack, must be set to 1 (OFF)
6
2 Checking and Setting the DIP Switches on the Subracks
2. Setting the DIP Switches on the Subracks
The DIP switch uses odd parity check. Therefore, the number of 1s in the eight
bits must be an odd number. The detailed procedure is as follows:
(1) Set the DIP bits 1 to 5.
(2) Set bit 7 to 0.
(3) Retain the value of bit 8. Count the number of 1s. If the number is even, set
bit 6 to 1. If the number is odd, set bit 6 to 0.
The following table lists the settings of the DIP switches when the subracks are
numbered from 0 to 3 and bit 8 is set to "OFF".
Subrack
Number
Bit
1
2
3
4
5
6
7
8
0
0
0
0
0
0
0
1
ON
ON
ON
ON
ON
ON
ON
OFF
1
0
0
0
0
1
0
1
OFF
ON
ON
ON
ON
OFF
ON
OFF
0
1
0
0
0
1
0
1
ON
OFF
ON
ON
ON
OFF
ON
OFF
1
1
0
0
0
0
0
1
OFF
OFF
ON
ON
ON
ON
ON
OFF
0
1
2
3
7
3 Conducting the Power-on Check on the Subrack
Set the PDF switches that correspond to the cabinet and all switches on the
PEM to "OFF".
Set the multimeter to the buzzer scale and ensure that the input and output of
the PEM are not short-circuited. If there are short-circuits, the multimeter beeps.
Set the corresponding switches on the PDF to "ON", and set all the
switches of the PEM to "OFF".
Set the multimeter to the voltage scale, and ensure that the voltage on the input
terminals of the PEM is normal. If the power input is normal, POWER1 and
POWER2 indicators will be on.
Normal voltage range: –40 V to –57 V
8
3 Conducting the Power-on Check on the Subrack
Set the switches on the PEM to "ON". Ensure that the power-on status of the
fan boxes in the subrack and of the boards is normal.
The power-on status is normal when the RUN indicator on the board is steady on or
blinks and the STATUS indicator on the fan box blinks.
On the PDF side, set all output switches and PEM switches that correspond to
the cabinet to "OFF".
9
4 Installing the EOMUa/EOMUb Board
 Wear an ESD wrist strap or a pair of gloves before installing the board.
 One EOMUa/EOMUb board occupies two slots. Active and standby EOMUa/EOMUb
boards must be
installed in slots 10 and 11 and slots 12 and 13.
The BSC6910 can be installed in the same cabinet as the ECO6910. To avoid incorrect
installation of the EOMUa/EOMUb board in this scenario, determine whether the
EOMUa/EOMUb can be installed on the BSC6910 based on the print information on the
box that houses the EOMUa/EOMUb and install the EOMUa/EOMUb in the
corresponding subrack.
Press the locking buttons on the front panel.
Turn the ejector levers outwards.
Insert the board into the subrack along the guide rail.
Turn the two ejector levers inwards, press the screws on the front panel, and
rotate them clockwise.
10
5 Installing the ESAUa/ESAUb Board (Optional)
 Wear an ESD wrist strap or a pair of gloves before installing the board.
 One ESAUa/ESAUb board occupies two slots. It's recommended that the
ESAUa/ESAUb board be installed at the back of the MPS.
The BSC6910 can be installed in the same cabinet as the ECO6910. To avoid incorrect
installation of the ESAUa/ESAUb board in this scenario, determine whether the
ESAUa/ESAUb can be installed on the BSC6910 based on the print information on the
box that houses the ESAUa/ESAUb and install the ESAUa/ESAUb in the corresponding
subrack.
Press the locking buttons on the front panel.
Turn the ejector levers outwards.
Insert the board into the subrack along the guide rail.
Turn the two ejector levers inwards, press the screws on the front panel, and
rotate them clockwise.
11
6 Installing Signal Cables
a
Introduction to Cables
Cable
Type of
Connection
Connectors at
Positions at
Both Ends
Both Ends
Y-shaped
Double-headed
clock cable
RJ45
GCUa/GCUb
RJ45
SCUb
SMB
GCUa/GCUb
ohm)
/
BITS
BITS clock
SMB
GCUa/GCGb
ohm)
/
BITS
Shielded
RJ45
EOMUa/EOMUb/
BITS clock
cable (75
cable (120
straight-
ESAUa/ESAUb/F
through
G2c/FG2d/FG2e
cable
RJ45
LMT/U2020/CBC
12
Appearance
6 Installing Signal Cables
a
Introduction to Cables
Type of
Connectors at
Both Ends
Name
Position of Connectors
at Both Ends
SFP+ highspeed cable
SFP+
SCUb boards in different
subracks
QSFP+ highspeed cable
QSFP+
SCUc boards in different
subracks
MPO optical
module and
MPO optical
cable
/
SCUc boards in different
cabinets
Single-mode
optical cable
LC/PC
EXOUa/EXOUb/GOUc/
GOUd/GOUe/POUc
Based on site
requirements
ODF
LC/PC
EXOUa/EXOUb/GOUc/
GOUd/GOUe/POUc
Based on site
requirements
ODF
RJ45
Subrack
DB9 male
EMU
Multimode
optical cable
EMU RS485
communicati
on cable
13
Appearance
6 Installing Signal Cables
b
Principles for Routing Signal Cables
The layout sequence in overhead and underfloor cabling modes must be the same. When
routing the cables at the back of the cabinet, route SFP+ high-speed cables along the left
side of the cabinet and clock signal cables along the right side of the cabinet. After routing
SFP+ high-speed cables and clock signal cables, route Ethernet cables from the middle
column to the external column, and then optical cables. For example, on the left side of the
cabinet, lay out the following cables from the middle standing pillar to the external standing
pillar: (1) SFP high-speed cable (2) Ethernet cable (3) Optical fiber (4) Power cable. On the
right side of the cabinet, lay out the following cables from the middle standing pillar to the
external standing pillar: (1) Y-shaped clock cable (2) Ethernet cable (3) Optical fiber (4)
Power cable
Principles for routing signal cables
(on the left side of the cabinet)
Principles for routing signal cables
(on the right side of the cabinet)
14
6 Installing Signal Cables
c
Installing SFP+ High-Speed Cables Between SCUb Boards
in Different Subrack
Ensure that the SFP+ high-speed cables between SCUb boards in the MPR or EPR are
correctly installed.
If the 10G LINK indicators on either SCUb board connected by the SFP+ high-speed
cables blink, the cables are securely connected.
The BSC6910 GSM and BSC6910 UMTS can be installed in one cabinet. In this case, the
SCU boards are connected to the SCU board in subracks of their own.
Between two subracks
 The subrack in the figure is an MPS.
 The SFP+ high-speed cables between the SCUb boards are close to the front door of
the cabinet.
Once the cables are installed, be careful not to drop them when you open the front door.
Connect cables according to the cable layout in the figure. Do not connect redundant
cables, because redundant cables will cause transmission loopback.
15
6 Installing Signal Cables
c
Installing SFP+ High-Speed Cables Between SCUb Boards
Among three subracks
 The subracks in the figure are MPSs.
 The SFP+ high-speed cables between the SCUb boards are close to the front door of the cabinet.
Once the cables are installed, be careful not to drop them when you open the front door.
The BSC6910 GSM and BSC6910 UMTS can be installed in one cabinet. In this case, the SCU
boards are connected to the SCU board in subracks of their own.
Connect cables according to the cable layout in the figure. Do not connect redundant cables,
because redundant cables will cause transmission loopback.
16
6 Installing Signal Cables
c
Installing SFP+ High-Speed Cables Between SCUb Boards
Among four subracks
 The subracks in the figure are MPSs and EPSs.
 The SFP+ high-speed cables between the SCUb boards are close to the front door of the cabinet. Once the
cables are installed, be careful not to drop them when you open the front door.
 Multimode optical cables are used when the cabling length between subracks is longer than 10 m.
The BSC6910 GSM and BSC6910 UMTS can be installed in one cabinet. In this case, the SCU boards are
connected to the SCU board in subracks of their own.
Connect cables according to the cable layout in the figure. Do not connect redundant cables, because
redundant cables will cause transmission loopback.
17
6 Installing Signal Cables
c
Installing SFP+ High-Speed Cables Between SCUb Boards
The following figure shows the cable connections between two fully configured cabinets.
 The subracks in the figure are MPSs and EPSs.
 The SFP+ high-speed cables between the SCUb boards are close to the front door of the cabinet. Once
the cables are installed, be careful not to drop them when you open the front door.
 Multimode optical cables are used when the cabling length between subracks is longer than 10 m.
The BSC6910 GSM and BSC6910 UMTS can be installed in one cabinet. In this case, the SCU boards
are connected to the SCU board in subracks of their own.
Connect cables according to the cable layout in the figure. Do not connect redundant cables, because
redundant cables will cause transmission loopback.
18
6 Installing Signal Cables
c
Installing Inter-SCUc QSFP+ High-Speed Cables and MPO
Optical Cables Between Different Subracks
 Ensure that the QSFP+ high-speed cable and MPO optical cable between the SCUc boards in the MPR or
EPR are correctly installed.
SCUc boards in one cabinet are connected using the 3 m QSFP+ high-speed cable, and SCUc boards in
different cabinets are connected using the 40 Gbit/s MPO optical modules and MPO optical cables.
 If the indicators of the 40G LINK ports on either SCUc board connected by the QSFP+ high-speed cable are
on, the cable is securely connected.
 The BSC6910 supports co-cabinet in non-convergence mode. Specifically, the BSC6910 GSM and
BSC6910 UMTS can be installed in one cabinet. In this case, the SCU boards are connected to the SCU board
in subracks of their own.
1. SCUc boards in the
same cabinet
The subrack in the preceding figure is an MPS.
40GE ports 0 to 7 are used for inter-SCUc board connections.
10GE ports 8 to 11 are used for connections between the SCUc boards and the SCUb boards. For details,
see "Installing Inter-Subrack SFP+ High-Speed Cables Between SCUb and SCUc Boards."
The QSFP+ high-speed cables connecting the SCUc boards in different subracks are installed close to the
front door of the cabinet. Once the cables are installed, be careful not to drop them when you open the front
door.
Connect cables according to the cable layout in the figure. Do not connect redundant cables, because
redundant cables will cause transmission loopback.
19
6 Installing Signal Cables
c
Installing Inter-SCUc QSFP+ High-Speed Cables and MPO
Optical Cables Between Different Subracks
2. SCUc boards in
different cabinets
The subrack in the figure is an MPS.
40GE ports 0 to 7 are used for inter-SCUc board connections.
10GE ports 8 to 11 are used for connections between the SCUc boards and the SCUb
boards. For details, see "Installing Inter-Subrack SFP+ High-Speed Cables Between SCUb
and SCUc Boards."
The MPO optical cables connecting the SCUc boards in different subracks are installed
close to the front door of the cabinet. Once the cables are installed, be careful not to drop
them when you open the front door.
Connect cables according to the cable layout in the figure. Do not connect redundant
cables, because redundant cables will cause transmission loopback.
20
6 Installing Signal Cables
c
Installing Inter-Subrack SFP+ High-Speed Cables Between
SCUb and SCUc Boards
 Ensure that the SFP+ high-speed cable connecting the SCUb and SCUc boards in the MPR or EPR is
correctly installed.
SCUb and SCUc boards in the same cabinet are connected using the 3 m SFP+ high-speed cable, and the
SCUc and SCUb boards in different cabinets are connected using the 10 m SFP+ high-speed cables.
 If the indicators of the 10G LINK ports on either the SCUc or SCUb board connected by the SFP+ highspeed cable are on, the cable is securely connected.
 The BSC6910 supports co-cabinet in non-convergence mode. Specifically, the BSC6910 GSM and
BSC6910 UMTS can be installed in one cabinet. In this case, the SCU boards are connected to the SCU board
in subracks of their own.
1. SCUb and SCUc boards in the
same cabinet
The subrack in the preceding figure is an MPS.
40GE ports 0 to 7 are used only for inter-SCUc connections. For details, see "Installing Inter-SCUc QSFP+
High-Speed Cables and MPO Optical Cables Between Different Subracks."
10GE ports 8 to 11 are used for connections between the SCUb and SCUc boards.
The SFP+ high-speed cables connecting the SCUc boards in different subracks are installed close to the front
door of the cabinet. Once the cables are installed, be careful not to drop them when you open the front door.
Connect cables according to the cable layout in the figure. Do not connect redundant cables, because
redundant cables will cause transmission loopback.
21
6 Installing Signal Cables
c
Installing Inter-Subrack SFP+ High-Speed Cables Between
SCUb and SCUc Boards
2. SCUb and SCUc boards in different cabinets
The subrack in the preceding figure is an MPS.
10GE ports 8 to 11 are used for connections between the SCUb and SCUc boards.
The SFP+ high-speed cables connecting the SCUc boards in different subracks are
installed close to the front door of the cabinet. Once the cables are installed, be careful not to
drop them when you open the front door.
Connect cables according to the cable layout in the figure. Do not connect redundant
cables, because redundant cables will cause transmission loopback.
22
6 Installing Signal Cables
d
Introduction
to Cables
Installing
Y-Shaped
Clock Cables
 The Y-shaped clock cable is classified by length into three types: 2.0 m, 2.5 m, and 9.7 m.
The 2.0 m long cable connects adjacent subracks in the same cabinet, the 2.5 m long cable
connects non- adjacent subracks in the same cabinet, and the 9.7 m long cable connects
different cabinets.
 Ensure that the Y-shaped clock cable in the MPR is correctly installed.
 The BSC6910 GSM and BSC6910 UMTS can be installed in one cabinet. In this case, the
clock boards are connected to the SCU board in subracks of their own.
Insert one end of the cable into CLKIN port on the SCUb/SCUc board.
Insert the other end of the cable into CLKOUT port on the GCUa/GCUb.
23
6 Installing Signal Cables
e
Introduction
to Clock
CablesCables
Installing
BITS
There are two types of BITS clock cables: 75-ohm coaxial clock cable and 120-ohm
clock conversion cable. The methods of installing the two types of cables are the same.
The BSC6910 GSM and BSC6910 UMTS can be installed in one cabinet. In this case,
the clock boards are connected to the SCU board in subracks of their own.
Insert one end of the cable into CLKIN 0 or CLKIN 1 port of the GCUa/GCUb.
Connect the other end of the cable to BITS.
Back
24
6 Installing Signal Cables
f
Installing GPS Clock Input Cables and GPS Jumpers
Assemble the surge protector and the fastener.
Install the surge protector assembly on top of the cabinet.
25
6 Installing Signal Cables
f
Installing GPS Clock Input Cables and GPS Jumpers
Install the female N connector of the jumper into the Protect port of the surge protector.
Attach the female N connector of the cable to the male N connector of the jumper.
Install the SMA connector of the GPS clock input signal cable into the ANT port on the
GCGa/GCGb board.
26
6 Installing Signal Cables
g
Installing Ethernet Cables for the EOMUa/EOMUb
BSC6910 and ECO6910 are configured in different cabinets.
Insert one end of the cable into the RJ45 port on the EOMUa/EOMUb.
Connect the other end of the cable to the LMT/U2020.
27
6 Installing Signal Cables
g
Installing Ethernet Cables for the EOMUa/EOMUb
BSC6910 and ECO6910 are configured in different subracks in the same cabinet.
Insert one end of the cable into the RJ45 port on the EOMUa/EOMUb.
Connect the other end of the cable to the LMT/U2020.
28
6 Installing Signal Cables
h
Installing Ethernet Cables for the ESAUa/ESAUa (Optional)
Insert one end of the cable into the RJ45 port on the ESAUa/ESAUb.
Connect the other end of the cable to the LMT/U2020.
29
6 Installing Signal Cables
i
g
Installing Ethernet Cables for the FG2c/FG2d/FG2e
Insert one end of the cable into the RJ45 port on the FG2c/FG2d/FG2e.
Connect the other end of the cable to the other equipment.
The following figure illustrates an example of cable connections for the FG2c.
30
6 Installing Signal Cables
j
Installing Optical Cables
CAUTION
 When installing optical cables, do not look into the optical port with naked eyes because the laser may
injure your eyes.
Extra optical cables can be wrapped adjacently on the fiber management tray below the subrack. The optical
cables at the outlet of the cabinet and those outside the cabinet must be coated with corrugated pipes.
Encase the optical cables in corrugated pipe. Then, guide the corrugated pipe to the overhead and
underfloor cabling areas and fix it in place.
Guide one end of the optical cable to the corresponding subrack of the board along the column, and route it
upwards along the cable trough to the corresponding board.
Remove the dustproof caps from the optical port and the optical cable connector, and then connect the
connectors to the TX and RX ports on the board.
Route the cables neatly and bind them with cable ties.
31
6 Installing Signal Cables
k
Installing RS485 Communication Cables (Optional)
The EMU has two types: type A and type B. The methods for installing the RS485 communication cable for
type A and type B are the same. The following steps use the type-B EMI as an example to describe how to
install the RS485 communication cable.
The ELU port is a reserved port and is not used now. Please do not connect any cable to it.
Before connecting the EMU to the RS485 communication cable, ensure that bits 4, 3, 2, and 1 on the DIP
switch SW_ADDR in the EMU are correctly set to be OFF, OFF, ON, and ON, respectively.
Attach the male DB9 connector at one end of the RS485 communication cable to the female DB9 connector
on the EMI.
Attach the RJ45 connector at the other end of the RS485 communication cable to the EMU port on the
PAMU board.
32
7 Checking the Hardware Installation
a
Checklist for Installation Environment
No.
1
Item
In the equipment room, no packing cartons, cases, or boards are placed about at random. All
items are placed in specific locations.
2
There are no cable ties or other sundries in the cable racks (troughs), at the bottom of the
cabinets, or around the cabinets.
3
There are no cable tie cuts or other sundries under the floor. The ESD floor, if available, is clean
and in good condition.
4
If equipment such as a maintenance terminal or alarm box is installed, it is placed in accordance
with the engineering design and connected properly.
b
b
Checklist for Cabinet Installation
1
The cabinets are stable and in order.
2
Plastic cover plates are properly installed at the tops and bottoms of the cabinets.
3
Filler panels are installed properly.
4
The boards are installed in their proper slots.
5
The DIP switches of the subracks and boards are correctly set.
6
The surfaces of the cabinets are clean without any fingerprints or smudges. There is no dust,
excessive cable tie ends, or other sundries either inside or outside each cabinet.
No.
Item
33
7 Checking the Hardware Installation
C
Checklist for Cable Installation
No.
Item
1
The installation positions of the power cables are in accordance with the schematic
drawing of the power distribution.
2
The signal cables are routed in accordance with the engineering design.
3
No power cables or PGND cables are damaged or fractured.
4
The OT terminals of the power cables and PGND cables are in proper contact with the
flat washers and spring washers. The bare wires and lug handles at the OT terminals
are tightly wrapped with insulating tapes or heat-shrinkable tubes.
5
The power cables and PGND cables are bound separately from other cables.
6
The grounding bars and PGND bars are finally connected to one grounding conductor,
with the earth resistance less than ten ohms.
7
The signal cables in the cabinet are properly installed.
8
Some extra length is left for the signal cables at the point where they are come down
from the cable rack.
9
The optical cables at the outlet of the cabinet and those outside the cabinet are covered
with corrugated pipe. Sharp edges on the corrugated pipes are eliminated to prevent
injury. Both ends of the pipes are fastened.
34
7 Checking the Hardware Installation
C
Checklist for Cable Installation
No.
Item
10
The optical connectors not in use are covered with protective caps.
11
The DDF is properly grounded.
12
All the cables are neatly and tightly bound. The cable ties are evenly spaced and face
the same direction.
13
The labels or nameplates at both ends of all the cables are correct, legible, and in order.
The labels or nameplates face the same direction.
35
HUAWEI TECHNOLOGIES CO., LTD.
Huawei Industrial Base Bantian Longgang
Shenzhen 518129
People's Republic of China
www.huawei.com