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TB9400 Installation and Operation Manual
Replacing Modules
117
© Tait Limited March 2015
8.7
Replacing the Subrack Interconnect Board
Removal
1.
If you have not already done so, carry out the instructions in 
2.
Disconnect any system control bus cables and DC power cables 
from the subrack board.
3.
Remove the three M3 nuts and spring washers 
b
 securing the right 
end of the board to the subrack.
4.
Remove the D-range cover 
c
.
5.
Remove the two retaining clamps 
d
 securing the left end and centre 
of the board.
6.
Remove the board.
Refitting
1.
If previously removed, replace the insulator 
e
.
2.
Refit the board and D-range cover, and secure with the M3 nuts and 
spring washers. Replace the two retaining clamps.
3.
Reconnect the system control bus cables and reciter DC cables as 
shown in 
“Appendix B – Inter-Module Connections” on page 117
).
Figure 8.1
Replacing the subrack interconnect board
b
e
c
d
x3