Справочник Пользователя для Tait International Limited TBCK4A

TB9400 Installation and Operation Manual

© Tait Limited March 2015

The reciter, PA and front panel are hot-pluggable and can be removed 
without powering down the whole base station. These modules can also be 
removed without disrupting the system control bus communications with 
the other modules in the subrack.

Notice Before removing a PA, first disconnect the DC input, transmit 
forward input and transmit reverse output, followed by the RF output. 
After refitting the PA, reconnect the RF output first, followed by the 
transmit forward input, transmit reverse output, and then the DC input.

If you want to disconnect the power before working on the base station, 
follow these steps.

Caution Before disconnecting the battery supply leads from the 
PMU, open the circuit breaker or disconnect the supply leads from the 
battery.

1.

Turn off the AC 

b

 and DC 

c

 switches at the rear of the PMU.

2.

Also at the rear of the PMU disconnect the mains 

d

 and battery 

e

 

supply leads, and the auxiliary DC supply lead 

f

 (if fitted).

b

c

d

e

f