7.4.6.1 Rear Board Structure
The structure of the rear board is shown in Figure 7.23
1. Extractor 3. PCB 5. Plug
2. Panel of rear board 4. Plug
7.4.6.2 RCHB1 Board
7.4.6.2.1 RCHB1 Board Definition
The RCHB1 is the CHUB rear board 1 of ZXWR RNC.
7.4.6.2.2 RCHB1 Board Functions
RCHB1 performs the following functions:
Providing the external interface for THUB, at most 46 × 100 M Ethernet interface (eleven groups of 4 FE TRUNK ports)
Providing one 232 debugging serial port Providing one debugging Ethernet interface
7.4.6.3 RCHB2 Board
7.4.6.3.1 RCHB2 Board Definition
The RCHB2 is the CHUB rear board 2 of ZXWR RNC.
7.4.6.3.2 RCHB2 Board Functions
RCHB2 performs the following functions:
Providing the external interface for THUB, at most 22 × 100 M Ethernet interface
Providing one 232 debugging serial port Providing one debugging Ethernet interface
7.4.6.3.3 RCHB2 Board Front Board
The front board of the RCHB2 is THUB.
7.4.6.4 RCKG1 Board
7.4.6.4.1 RCKG1 Board Definition
The RCKG1 is the CLKG rear board 1 of ZXWR RNC.
RCKG1 provides six channels of clock output ports and two kinds of clock bases (one channel of 8 K input and one channel of BITS reference input) and one RS232 debugging serial port input interface for ICM.
7.4.6.4.3 RCKG1 Board Front Board
The front board of the RCKG1 is ICM.
7.4.6.5 RCKG2 Board
7.4.6.5.1 RCKG2 Board Definition
The RCKG2 is the CLKG rear board 2 of ZXWR RNC.
7.4.6.5.2 RCKG2 Board Functions
RCKG2 provides six channels of clock output ports and two kinds of clock bases (one channel of RITS reference input) and one RS232 debugging serial port input interface for ICM.
7.4.6.5.3 RCKG2 Board Front Board
The front board of the RCKG2 is ICM.
7.4.6.6 RDTA Board
7.4.6.6.1 RDTA Board Definition
The RDTA is the rear board of DTA/DTI.
7.4.6.6.2 RDTA Board Functions
The RDTA provides 32 external E1/T2 physical interfaces for the DTA board and the DTI board.
7.4.6.6.3 RDTA Board Front Board
The front boards of the RDTA are DTA and DTI.
7.4.6.7 RGER2 Board
7.4.6.7.1 RGER2 Board Definition
The RGER2 is the rear board of Giga Ethernet interface board for BGSN of ZXWR RNC.
7.4.6.7.2 RGER2 Board Functions
RGER2 provides the following functions: l Providing GE electric interfaces for the GIPI3/GIPI4
l Providing one RS232 debugging interface and one Ethernet debugging interface
The front board of the RGER2 is GIPI3 and GIPI4.
7.4.6.8 RGIM1 Board
7.4.6.8.1 RGIM1 Board Definition
The RGIM1 is the general rear interface module 1 of ZXWR RNC.
7.4.6.8.2 RGIM1 Board Functions
RGIM1 provides the following functions:
# Providing a RS232 debugging interface for the APBE # Providing a 8 K clock output interface for the APBE
7.4.6.8.3 RGIM1 Board Front Board
The front board of the RGIM1 is APBE.
7.4.6.9 RGUM1 Board
7.4.6.9.1 RGUM1 Board Definition
The RGUM1 is the rear board of Gigabit universal interface module 1 of ZXWR RNC.
7.4.6.9.2 RGUM1 Board Functions
RGUM1 provides the following functions:
Providing two control plane external cascading Ethernet ports for GUIM/GUIM2
Providing one debugging interface
Providing one clock input interface to connect ICM.
7.4.6.9.3 RGUM1 Board Front Board
The front boards of the RGUM1 are GUIM and GUIM2.
7.4.6.10 RGUM2 Board
7.4.6.10.1 RGUM2 Board Definition
The RGUM2 is the rear board of Gigabit universal interface module 2 of ZXWR RNC.
4.4.6.10.2 RGUM2 Board Functions
RGUM2 provides the following functions:
Providing two control plane external cascading Ethernet ports for GUIM/GUIM2
Providing one debugging interface Providing one clock input interface to connect ICM
7.4.6.10.3 RGUM2 Board Front Board
7.4.6.11 RLIB Board
7.4.6.11.1 RLIB Board Definition
The RLIB is the rear low speed interface card of ZXWR RNC.
7.4.6.11.2 RLIB Board Functions
The RLIB board provides E3/T3 physical interfaces for the ET3A board and ET3I board.
7.4.6.11.3 RLIB Board Front Board
The front boards of the RLIB are ET3A and ET3I.
7.4.6.12 RMNIC Board
7.4.6.12.1 RMNIC Board Definition
The RMNIC is the MNIC rear board of ZXWR RNC.
7.4.6.12.2 RMNIC Board Functions
The RMNIC provides the FE interfaces for the GIPI3/GIPI4.
7.4.6.12.3 RMNIC Board Front Board
The front boards of the RMNIC are GIPI3 and GIPI4.
7.4.6.13 RMPB Board
7.4.6.13.1 RMPB Board Definition
The RMPB is the MPB rear board of ZXWR RNC.
7.4.6.13.2 RMPB Board Functions
RMPB provides external interfaces for the ROMB.
7.4.6.13.3 RMPB Board Front Board
The front board of the RMPB is ROMB.
7.4.6.14 RSVB Board
7.4.6.14.1 RSVB Board Definition
The RSVB is the rear board of server board of ZXWR RNC.
7.4.6.14.2 RSVB Board Functions
RSVB provides external interfaces for the SBCX.
The front board of the RSVB is SBCX.
7.4.6.15 RUIM2 Board
7.4.6.15.1 RUIM2 Board Definition
The RUIM2 is the UIM rear board 2 of ZXWR RNC.
7.4.6.15.2 RUIM2 Board Functions
RUIM2 performs the following functions:
Providing five Ethernet ports for UIMC
Providing one clock input interface to connect ICM Providing one RS232 debugging interface
Providing one Ethernet debugging interface
7.4.6.15.3 RUIM2 Board Front Board
The front board of the RUIM2 is UIMC.
7.4.6.16 RUIM3 Board
7.4.16.1 RUIM3 Board Definition
The RUIM3 is the UIM rear board 3 of ZXWR RNC.
7.4.16.2 RUIM3 Board Functions
RUIM3 performs the following functions: l Providing five Ethernet ports for UIMC
l Providing one clock input interface to connect ICM
l Providing one RS232 debugging interface
l Providing one Ethernet debugging interface.
7.4.6.16.3 RUIM3 Board Front Board
The front board of the RUIM3 is UIMC.
7.5 Backplane