132 Replacing Modules TB9400/TN9275 Installation and Operation
© Tait International Limited May 2023
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.
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