2014
Security Level: Internal Use
BSC /RNC6900 Hardware Structure and System Description www.huawei.com
The BSC /RNC6900 is an important network element of Huawei Single RAN solution. It adopts the industry-leading multiple radio access technologies, IP transmission mode, and modular design. The BSC /RNC6900 can be flexibly f lexibly configured as a BSC /RNC6900 GSM,
BSC /RNC6900 UMTS, or BSC /RNC6900 GU as required in different networks.
Know the functions and features of BSC /RNC6900
Master the hardware structure of BSC /RNC6900
Master the signal flow
Master the typical configuration of BSC /RNC6900
Reference
BSC /RNC6900 Technical Description
BSC /RNC6900 Hardware Description
Chapter 1 BSC /RNC6900 System Description
Chapter 2 BSC /RNC6900 Hardware Structure
Chapter 3 BSC /RNC6900 Signal Flow
Chapter 4 BSC /RNC6900 Typical Configuration
Location The interfaces between the BSC /RNC6900 GSM and each NE in the UMTS network are as follows:
Iub Interface: the interface between the NodeB and RNC.
Iur Interface: the interface between the RNC and RNC.
Iu-CS Interface: the interface between the MSC and MGW.
Iu-PS Interface: the interface between the RNC and SGSN
Iu-BC Interface: the interface between the RNC and CBC
The interfaces between the BSC /RNC6900 GSM and each NE in the GSM network are as follows: Abis A
Interface: the interface between the BTS and BSC
Interface: the interface between the BSC and MSC or MGW
Gb Interface: the Interface between the BSC and SGSN
BSC /RNC6900 New Features BSC /RNC6900V9R1 /RNC6900V9R11C00 1C00
Frame Unitary
Transmission and Resource Management Unitary
Multi-kernel Boards
Unitary OM SMP
Unitary logic
Configuration
XPUb
Frame
Maintenance
DPUe
POUc
Resource Management
Alarm
Performance
FG2c
OS
GOUc
Internal
UOIc
Communication
AOUc
BSC6000/BSC6810
Unitary
Co-Transmission
Pool resource
Unitary Control Plane
GBSC Control Plane Optimize
BSC /RNC6900 Product Characters multi-mode amalgamatio amalgamation n GSM&UMTS cabinet
RNC
GSM&UMTS co-cabinet
BSC
RNC
BSC
RNC
BSC
RNC Software upgrade
RNC
BSC
•
Smooth evolution evolution from BSC to RNC with software upgrade upgrade
•
Reducing CAPEX by reusing hardware hardware
•
Dynamic capacity capacity adjustment adjustment between between 2G&3G
BSC /RNC6900 Product Characters OAM Configuration Management
Co
PM Management
Unified OAM toolkits: Easier 2G/3G trouble shooting
Fault Management
Network Optimization
Unified CME : Simultaneous 2G/3G data configuration, correctness and efficiency guaranteed
Unified GENEX : Unified 2G/3G network planning, performance evaluation and performance trouble shooting
• Centralized OMC for GSM&UMTS, unified platform for platform for network construction, 2G/3G network planning, performance evaluation and trouble shooting etc. • Simplify Simplifying ing the network architecture, reducing co-ordination and maintenance effort, man power and OPEX Saving
BSC /RNC6900 Product Characters TRM P P P F F F
UDP IP
UNI-BTS
/
UDP IP SW Router
IP SW
IP
3G
3G
2G
Router
2G
U U PPP A A R R T T p p
P P P F F F
IP / PPP
U U A A R R T T p p
Co-transmission
UNI-BTS
Co
I n t e r f a c e b o a r d
UNI-BSC
pTRAU
Without Co-trans UMTS / GSM
Co-trans Traffic rejection
UMTS + GSM 10 9 8
Multiplexi ng Gain
) 7 % ( n 6 i a G c 5 i f f a r T 4
5-10% Gain
3 2
• With unified transport resource management, bandwidth can be shared by UMTS&GSM.
1 0 0.2
0.1
0.05
0.03
0.02 GOS
0.01
0.005
0.002
0.001
BSC /RNC6900 Product Characters RRM Service direction on UMTS/GSM
UMTS
Co
Load control between UMTS/GSM
UMTS
Heavy Load
Heavy Load
Load control by inter-RAT HO Cs service
PS service
GSM
Heavy Load
GSM
Heavy Load
3G/2G cell load consideration make it more
3G/2G cell load consideration make traffic
accurate for the service direction, better
load spread in UMTS&GSM evenly, network
performance achieved
usage efficiency improved
Huawei Lab Simulation
BSC6000 BSC6810 and BSC /RNC6900 Evolution Paths GBSS8.1/RAN10
BSC6810
BSC6810 SW upgrade
SW upgrade with Legacy HW + New HW (optional)
GBSS12.0/RAN12
GBSS9.0/RAN11 BSC
BSC /RNC6900
RNC Only
RNC Only
SW upgrade with Legacy HW + New HW (expansion) /RNC6900
Naming changing to BSC /RNC6900 SW upgrade with Legacy HW + New HW (optional)
BSC /RNC6900
BSC /RNC6900 Dual mode
Dual mode
BSC /RNC6900
BSC /RNC6900
SW upgrade with Legacy HW + New HW (optional) Naming changing to BSC /RNC6900 SW upgrade with Legacy HW + New HW (expansion)
BSC6000
BSC Only
BSC Only
2008Q3
2009Q1
2006
2009Q2
2008
Note : Legacy HW is HW available from GBSS8.1/RAN10.0 for BSC /RNC6900
2009
2010Q1
BSC /RNC6900 Capacity Index
Typical configuration specifications of the BSC /RNC6900 GSM(BM/TC separated and Abis over non-IP R11 board) BSC /RNC6900 GSM only Item
1MPS+1TCS
1MPS+1EPS+2TCS
1MPS+2EPS+2TCS
Number of
2
2
2
BHCA(K)
1750
3500
5250
Traffic volume
6500
13000
19500
Number of TRXs
1024
2048
3072
Number of active
4096
8192
12288
cabinets
（Erl）
PDCHs（MCS-9）
Chapter 1 BSC /RNC6900 System Description
Chapter 2 BSC /RNC6900 Hardware Structure
Chapter 3 BSC /RNC6900 Signal Flow
Chapter 4 BSC /RNC6900 Typical Configuration
Chapter 2 BSC /RNC6900 Hardware Structure
2.1 Frame and Subrack 2.2 Board Introduction 2.3 Cable Introduction
BSC900 Hardware--Cabinet
The BSC /RNC6900 uses the Huawei N68E-22 cabinet and the Huawei N68-21-N cabinet.
The two models of cabinets have the same appearance.N68E-22 is divided into a single-door cabinet or a double-door cabinet.
Item
Specification
Height of the available space
46U
Weight
Empty cabinet≤100 kg Cabinet in full configuration≤300 kg
Input voltage range
-40 V to -57 V
BSC900 Hardware--Cabinet
The BSC /RNC6900 GSM cabinet is classified into main processing rack (MPR),
extended processing rack (EPR), and transcoder rack (TCR).
BSC900 Hardware--Subrack
The BSC /RNC6900 GSM subrack has a standard width of 19 inches. The height of each subrack is 12 U. The boards are installed on the front and rear sides of the backplane, which is positioned in the center of the subrack.
A
subrack provides 28 slots. The slots on the front of the subrack are
numbered from 0 to 13, and those on the rear are numbered from 14 to 27.
BSC900 Hardware--Subrack
Classification of BSC /RNC6900 GSM subracks
Rear View
Front View Item
Index
Height of the subrack
12U
1 Fan box
2 Mounting ear
3 Guide rail
Weight of the subrack
Empty: 25kg;
4 Front cable trough
5 Boards
6 Grounding screw
7 DC power input port
8 Port for the monitoring signal cable of the power distribution box
9 Cover plate of the DIP switch
Full configuration≤57kg Consumption
l MPS subrack: 1000W l EPS subrack: 1000W l TCS subrack:1000W
DIP Switch on the Subrack
The DIP switch on the subrack has eight bits numbered in ascending
order from 1 to 8
If the bit is set to ON, it indicates 0. If the bit is set to OFF, it indicates 1.
DIP Switch on the Subrack
Subrack
Subrack code
number
1
2
3
4
5
6
7
8
Subrack 0
ON
ON
ON
ON
ON
ON
ON
OFF
Subrack 1
OFF
ON
ON
ON
ON
OFF
ON
OFF
Subrack 2
ON
OFF
ON
ON
ON
OFF
ON
OFF
Subrack 3
OFF
OFF
ON
ON
ON
ON
ON
OFF
Subrack 4
ON
ON
OFF
ON
ON
OFF
ON
OFF
Subrack 5
OFF
ON
OFF
ON
ON
ON
ON
OFF
The function of the switch 6?
Chapter 2 BSC /RNC6900 Hardware Structure
2.1 Frame and Subrack 2.2 Board Introduction 2.3 Cable Introduction
BSC /RNC6900 Overall Structure
The overall structure of the BSC /RNC6900
Switching Subsystem;
Service Processing Subsystem;
Clock Synchronization Subsystem;
Interface Synchronization Subsystem;
OM Subsystem.
GO-Mode
Switching Subsystem
Functions
Provides intra-subrack Medium Access Control (MAC) switching
Provides intra-subrack Time Division Multiplexing (TDM) switching
Distributes clock signals to the service processing boards
Provides inter-subrack switching
Provides switching channels for traffic data
Provides OM channels
Hardware Involved
TDM switching－ TNUa board
MAC switching－ SCUa board
Board——TNUa GTNU
The TNUa is the TDM switching unit in the BSC /RNC6900.
The TNUa board performs the TDM switching function, which
RUN ALM ACT
0 M N T
is the TDM switching center of the system.
The TNUa has the following functions:
1 M N T
2 M N T
3 M N T
The active and standby TNUa are inserted in slot 4 and slot 5.
Providing 128 K ×128 K TDM switching Allocating TDM network resources, establishing, and releasing radio links
4 M N T
5 M N T
Port TDM0
PARC
Function 5
TDM high-speed serial port, used to connect the TNUaS between subracks
Matching connector DB14
Board——SCUa SCUa
The SCUa is the switching control unit in the BSC /RNC6900.
RUN ALM ACT RESET LINK ACT
The active and standby SCUa are inserted in slot 6 and 7. The SCUa board provides maintenance management of the subrack and GE switching platform for the subrack.
0
1
The SCUa has the following functions:
2
3
Performing maintenance management of the subrack
Providing a GE platform for the subrack
Providing clock information for the other boards in the same subrack except the GCUa
LINK ACT
4 T E
S 5 A B 0 0 0 1 / 0 0 1 / 0 1
6
7 LINK ACT
8
9
10
Port EHT0
Function 9
11
M O C
N I K L C
TESTOUT
PARC
EHT10 COM CLKIN
11
Matching
10M/100M/1000M Ethernet ports, used to connect subracks
RJ45
10M/100M/1000M Ethernet ports, used to connect GBAM (Only the
RJ45
main subrack is connected with the GBAM) Debugging port
RJ45
Clock source port, used to receive the 8 kHz clock signals from the
RJ45
panel of the GGCU TESTOUT Clock test signal port, used to output clock test signals
SMB connector
Service Processing Subsystem
Functions
User data transfer
Radio channel ciphering and deciphering
System admission control
Data integrity protection
Mobility management
Cell broadcast service control
Data volume reporting
Radio access management
CS service processing
PS service processing
Radio resource management and control
System information and user message tracing
Service Processing Subsystem
Hardware Involved
XPUa/b board, SPUa/b board, DPUa/b/c/d/e board
Board Specification
XPU/SPU is the signaling processing unit
SPU board can process GSM/UMTS signaling panel, XPU board can process GSM signaling panel
SPU board Works for BSC /RNC6900 GU mode
XPU board Works for BSC /RNC6900 GSM only mode
The postfix of “a” board contain 4 logic subsystem, and the postfix of “b” board contain 8 logic subsystem
Services Process Unit DPUa/b/c/d/e
Board Introduction-XPU/SPU
Loaded with different software, the XPUa board is functionally
XPUa
RUN
divided into main control XPUa board and non-main control
ALM ACT
XPUa board.
The 0 subsystem of main control XPU/SPU board is MPU, used to manage the user panel and signaling plane resources within the subrack and process the signaling.
LINK ACT
0
The subsystem of non-main control XPU/SPU
T -
E 1 S
board is CPU, used to process the signaling.
A B 0 0 0 1
/ 2 0 0 1 / 0 1
3
For GSM Only mode, one MPU for the system
is enough. If the system upgrade to GU mode, one MPU should for one subrack. PARC
Main control XPUa
Non-Main control XPUa
Board Introduction——DPUc
Function
DPUa
RUN
DPUc process CS services and perform the voice coding and decoding function. It works as subrack system pool mode.
ALM ACT
Provides the speech format conversion and data forwarding functions when configured in BM subrack.
PARC
Provides the Tandem Free Operation (TFO) function
Provides the voice enhancement function
Detects voice faults automatically
DPUd board works for GSM services.
Board introduction——DPUd DPUa
Function
RUN ALM
The DPUd is the Data Processing Unit for PS services. It can be installed in slots 8 –11 in MPS and 8-27 in EPS ，it processes the
ACT
packet services for the BSC.
Each DPUd supports 1024 activated PDCHs at the same time, and all the PDCHs support MSC-9 coding.
PARC
Packet links processing function.
PS fault self-detection.
DPUd board works for GSM services.
Subsystems Five: Interface Board System Board Type
Old Boards
Physical Board
Board specification
Scene
EIUa
Transmits, receives, encodes, and decodes 32 E1s/T1s.
GSM Only
OIUa
Provides one STM-1 port for TDM transmission
GSM Only、GU
FG2a
Provides eight channels over FE ports or two channels over
GSM Only、GU
GE electrical ports GOUa
Provides two channels over GE optical ports
GSM Only、GU
PEUa
Provides 32 channels of E1s/T1s for HDLC transmission
GSM Only、GU
Extracts line clock signals
Multikernel Boards
FG2c
Provides 12 channels over FE ports or four channels over
GSM Only
GU
GE electrical ports GOUc
Provides four channels over GE optical ports
GSM Only
GU
POUc
Provides four channels over channelized optical STM-1/OC-
GSM Only
GU
3 ports based on IP protocol Extracts line clock signals
Mapping for Interface Board and Version Physical Board
Function
Interface Type Abis
Ater
A
Gb
Pb
Co-Transmission for the Interface Board Physical
Function
Board
Interface Board Sharing Iub
Iu(Iur/IuCS/Iu PS)
Abis
A
Ater
Gb
FG2a
IP
Iub/Iu Co-Interface board Abis/A Co-Interface board
Gb Separated
GOUa
IP
Iub/Iu Co-Interface board Abis/A Co-Interace board
Gb Separated
AOUc
ATM
Iub/Iu Co-Interface board
UOIc
ATM
Iub/Iu Co-Interface board
IP POUc
TDM+ HDLC IP
Iub/Iu/Abis/A(Ater) Abis/A(Ater)/Gb(Pb) Co-Interface board Iub/Iu/Abis/A(Ater) Co-Interface board
FG2c
IP
Iub/Iu/Abis/A(Ater)/Gb(Pb) Co-Interface board
GOUc
IP
Iub/Iu/Abis/A(Ater)/Gb(Pb) Co-Interface board
EIUa
Abis TDM Ater TDM Pb TDM A TDM
OIUa
Abis TDM Ater TDM Pb TDM A TDM
Board Introdction-FG2c
The FG2c board supports IP over Ethernet transmission.
The FG2c board performs the following functions:
Provides 12 channels over FE ports or four channels over GE electrical ports
Provides the link aggregation function at the MAC layer
Provides the routing-based backup and load sharing
Supports the transmission of data over all its Ethernet ports on the basis of the synchronized clock signals
Supports the Abis 、 A、Gb、Iu、Iub interfaces
Port
Function
Connector type
10/100BASE-T
10M/100M Ethernet ports, used to transmit 10/100M
RJ45
signals 10/100/1000BASE-T
10M/100M/1000M Ethernet ports, used to transmit
RJ45
10/100/1000M signals 2M0、2M1
Port for 2 MHz clock signal outputs
male connector
Board Introduction-GOUc As
an optical interface board, the GOUc board supports IP
over Ethernet transmission.
The GOUc board performs the following functions:
Provides four channels over GE optical ports
Provides the routing-based backup and load sharing
Extracts line clock signals
Supports the Abis, A, and Gb,Iu, Iub interfaces
Port
Function
Connector Type
RX TX 2M0、2M1
Optical port, used to transmit and receive optical signals. TX
LC/PC
refers to the transmitting optical port, and RX refers to the receiving optical port. Port for 2 MHz clock signal outputs
SMB male connector
Board Introduction-POUc
As an interface board, the POUc board supports IP over channelized STM-1/OC-3 transmission.
The POUc board performs the following functions:
Provides four channels over channelized optical STM-1/OC-3 ports based on IP protocol
Supports the PPP function
Extracts line clock signals
Provides the Automatic Protection Switching (APS) function between the
active and standby POUc boards
Supports the A, Abis, Gb, Ater,Pb, Iu, Iub interfaces Port
Function
Connector type
RX
Optical port, used to transmit and receive optical signals. TX refers to the
LC/PC
TX 2M0 2M1
transmitting optical port, and RX refers to the receiving optical port. Output ports for clock signals. These ports are used to transmit the 2 MHz line
SMB male
clock signals to the GCUa/GCGa board. The clock signals are extracted from
connector
upper-level devices and serve as the clock sources of the BSC /RNC6900 system.
Subsystems Four: Clock Subsystem
Clock Source
Bits clock
Line clock
GPS
Reference Clock for the MPS or EPS
The reference clocks are provided by the GCUa. The reference clocks generate 8kHz clock signals through the GCUa.
MPS: The clock signals are sent to the SCUa in the MPSa subrack through the backplane. Then, the clock signals are sent to other boards in the same subrack.
EPS: The clock signals are sent to the SCUa board in the EPSa subrack through the clock cable. Then, the signals are sent to other boards through the backplane.
Reference Clock for the TCS
Each TCS extracts line clock from the A interface. The line clock is processed through A interface panel and then generates 8 KHz clock signals.
The clock signals are sent to the SCUa in the subrack through the backplane. Then the clock signals are sent to other boards in the same subrack.
Structure of the Clock Synchronization Subsystem CN
BITS
GPS RSS
To BTS/NodeB
R I N T
R I N T
GCUa/GCGa Clock module
8kHz
8kHz
S C U a
19.44MHz, 32.768MHz, 8KHz RBS To BTS/NodeB
R I N T
S C U a
8kHz
19.44MHz, 32.768MHz, 8KHz High-speed backplane channel
RBS S C U a
R I N T
19.44MHz, 32.768MHz, 8KHz Clock cable
To BTS/NodeB
Board——GCUa
The GCUa is the general clock unit in the BSC /RNC6900. The
active and standby GCUa are configured in slots 12 and 13 in the MPS. The GGCU board provides synchronous timing signals for the
GGCU
system
RUN ALM ACT
The GCUa has the following functions:
0 1 2 3
T U O K L C
4 5 6
Generating and keeping synchronous clock signals
Keeping the consistency of synchronization information output from the active and standby GCUa
Port
Function
Connector type
ATN-IN
Reserved
SMA male connector
Ports for transmitting synchronization clock signals. The ten
RJ45
7
8
CLKOUT0~9
9
ports are used to transmit the 8 kHz clock signals to the CLKIN port on the panel of the SCUa board.
COM0 COM1
T U O T S N I E T T S
E T 0 N I L 1 K N L I L C K L C
PARC
COM0,COM1
Reserved
RJ45
TESTOUT
Reserved
SMB male connector
TESTIN
Input port for testing external clock signals
SMB male connector
Synchronization clock input port, used to receive the 2.048
SMB male connector
CLKIN0-1
MHz clock signals or 2.048 Mbit/s code stream signals
Subsystems Five: O&M Subsystem Internal network
S C U a O M U a
O M U a
LANSWITCH
S C U a
External network
EPS
MPS
Internet cable Serial cable
M2000
WEB LMT
S C U a
S C U a
Board Introduction
OMU
The OMUa board works as a bridge for the communication between the WebLMT and the other boards in the BSC /RNC6900.
Function
Performing the configuration management, performance management, fault management, security management, and loading management functions for the system
To control the communication between the LMT/M2000 and the SCUa board of the BSC /RNC6900
(1) Captive screw
(2) Shielding finger
(3) Ejector lever
(4) LED (RUN)
(5) LED (ALM)
(6) LED (ACT)
(7) Button (RESET)
(8) Button (SHUTDOWN)
(9) USB port
(10) Ethernet port (ETH0) (11) Ethernet port (ETH1) (12) Ethernet port (ETH2)
(13) COM port
(14) VGA port
(17) Hard disk
(18) Screw for fixing the hard disk
(15) LED (HD)
(16) LED(OFFLINE)
Chapter 2 BSC /RNC6900 Hardware Structure
2.1 Frame and Subrack 2.2 Board Introduction 2.3 Cable Introduction
TDM Switching Subsystem
Intra-Subrack: Other boards in the subrack connect with TNUa (Active/Standby) through LVDS (Low Voltage Differential Signal) high speed serial ports of backplane.
Inter-Subrack: TDM units of every subrack fully interconnected with each other through TNUa crossover cables.
Board
Board
TNUa Active TNUa Standby
LVDS TDM path of backplane Inter-TNUa Cable
TNUa
TNUa
Active
Standby
In full intra-subrack interconnection, 2 cables support 8K bandwidth.
Board
Board
Inter-Subrack Interconnections of TNUa Crossover Cables 0＃ TNUa
1＃ TNUa
TNUa
2＃ TNUa
TNUa
TNUa
Interconnection Between SCUa
Active/standby SCUa boards: HiG interconnection; 30G bandwidth.
Intra-subrack : The SCUa board provides 48G GE switching capability through backplane.
Inter-subrack : The SCUa boards are connected in star topology through intercross cable using the GE ports on SCUa. RBS
Other board
Other board
Switchin g and control unit
RSS High-speed backplane channel
Network cable
Switchin g and control unit
Other board
Other board
Other board Switchin g and control unit
Other board RBS
The Physical Cable Between Subracks
SCUa in MPS subrack
GE0～7 interconnect with EPS, open the port by MML command.
GE8/9 interconnect with main TCS
GE10/11 interconnect with GBAM
SCUa in EPS subrack
GE0～1 interconnect with MPS
Interconnection Between Subrack A interface TCS
TCS
Pb interface
TCS
Ater interface
TC Abis interface
EPS MPS
EPS
BM
Subracks of BSC6000 compose an interconnection switching network through cascade. SCUa Star interconnection TNUa Full interconnection
Clock Synchronization Interconnection
The connection of the GCUa of the main subrack and the extension subrack is shown:
The active and standby GCUa output 10-way signal channel respectively. A signal channel of
an active GCUa and that of a standby GCUa are integrated through the Y-shaped cable.
Any of component including GCUa, Y-shaped cable, and SCUa is faulty, the system clock still can work normally.
Chapter 1 BSC /RNC6900 System Description
Chapter 2 BSC /RNC6900 Hardware Structure
Chapter 3 BSC /RNC6900 Signal Flow
Chapter 4 BSC /RNC6900 Typical Configuration
GSM CS Signal Flow
Abis over TDM+A over TDM
GSM CS Signal Flow
Abis over HDLC/IP+A over TDM
GSM CS Signal Flow
Abis over TDM+A over IP
Abis over HDLC/IP+A over IP
GSM PS Signal Flow (Inner-PCU)
Abis over TDM
Abis over HDLC/IP
Signaling Flow on the A Interface
Abis over TDM+A over TDM
the signaling processing board XPUa processes the signaling according to the MTP3, SCCP, and BSSAP protocols.
A Over IP
The A interface board processes the MTP2 protocol
Signaling Flow on the Abis Interface
Abis over TDM/IP/HDLC
Signaling Flow on the Gb Interface
Gb Over IP
the signaling processing board processes the signaling according to the NS and BSSGP protocols. Then, the signaling is transmitted to the Gb interface board through the SCUa board.
The Gb interface board processes the signaling according to the IP or FR protocol. Then, the signaling is transmitted to the SGSN over the Gb interface.
OM Signal Flow
Chapter 1 BSC /RNC6900 System Description
Chapter 2 BSC /RNC6900 Hardware Structure
Chapter 3 BSC /RNC6900 Signal Flow
Chapter 4 BSC /RNC6900 Typical Configuration
Specification of the Board
XPUa/XPUb
350TRX/XPUa
640TRX/XPUb
No. of XPUa=TRX No./350TRX
For GSM only system, we can be configured just one main control XPU,
No. of XPUb=TRX No./640TRX
which configured as RGCP
The control panel optimized for BSC /RNC6900, XPUa/XPUb can congfigured in different subrack with Transcode board and interface board averagely.
Specification of the Interface Board Physi Function cal
Interface Type Abis
Ater
A
Gb
Board 3906CIC 23040CIC
2048TRX
395Mbps
Pb
Typical Configuration
Parameter Description
