Chapter
Error! Style not defined.
Error! Style not defined.
12-13
1) Be sure to wear the antistatic wrist ring when plugging a board or a module.
2) Take the boards and modules out of the antistatic bags, and check if there is any
parts missing or damaged;
3) Be sure to insert the board to the right place indicated by the board name on the
panel bar;
4) Insert the circuit board vertically along the guide slot till the circuit board cannot
be inserted further, which indicates that the circuit board has been exactly in
place. Never insert the circuit board with extra force, lest the pins on the
backplane be bent or broken.
3. Locking
the
board
When the board is inserted in place, press down the handle till it clicks, which
indicates that the board is clipped by the spring.
4. Locking
the
module
When the module is inserted in place, fasten it with the spring nail on the panel.
5
．
The boards PPM, PSMC, PSMD and HPA in the BTS rack are available with
their own power switches. They should not be plugged until being powered off.
Other boards in the BTS rack (CHM, CCM, CMD, SNM, SAM, DSM, TRX,
RFE and RIM) can be hot plugged.
12.4 Introduction to BDS Plug-in Shelves
The slot diagram of the BDS plug-in shelf is shown in Fig. 12.4-1.
R
I
M
C
H
M
C
H
M
C
C
M
C
C
M
S
N
M
G
C
M
C
D
M
S
A
M
D
S
M
G
C
M
C
H
M
C
H
M
D
S
M
S
N
M
B
I
M
Fig. 12.4-1 Slot Diagram of the BDS Plug-in Shelf
