128
Replacing Modules
TB9400 Installation and Operation Manual
© Tait International Limited
November 2019
8.8
Final Reassembly
Notice
You must fit the correct type of front panel to your base sta-
tion. The different types of front panel and fan ducts are explained in
“Appendix C – Identifying Front Panels” on page 133
1.
Before fitting the front panel, ensure that all cables are secured and
positioned correctly so they are clear of the fan ducts (refer to
“Appendix B – Inter-Module Connections” on page 130
the panel may not fit properly, or you may damage the cables.
Base stations manufactured after May 2015 no longer have an airflow
separator.
2.
Refit the Front Panel
a. Ensure that the fasteners
b
are in the unlocked position.
b. Fit the front panel onto the locating pegs on the subrack.
c. Secure each fastener with a quarter turn clockwise.
d.
Push the self-aligning D-range connector
c
fully in.
3.
Before powering up the base station, check that all power, RF and
system cables are connected correctly and securely at the rear of the
base station.
When refitting modules, make sure they are fitted correctly into the subrack
and all retaining clamps are securely tightened. The recommended torque
for the retaining clamp screws is 17lbf·in (1.9N·m). As well as holding the
modules in place, the retaining clamps push the modules hard against the
rear rail of the subrack to ensure a good ground connection between the
modules and the subrack.
locked
unlocked
b
c
