User's Manual

TME Power Distribution Assembly – continued

9-72 1X SC480 BTS Hardware Installation, Optimization/ATP, and FRU Jun 2004

DRAFT

Table 9-41: Procedure to Remove PDA

Step Action

8 Gently pull out PDA far enough to disconnect cables at the rear.

9 Remove PDA.

Install PDA

Follow the procedure in Table 9-42 to install the PDA. See Figure 9-26

or Figure 9-27.

Table 9-42: Procedure to Install PDA

Step Action

1 Hold PDA near its slot in the TME and connect the cables (previously disconnected) to the rear of the

PDA.

2 Slide PDA in and secure to TME chassis by tightening the captive screws.

3 Place ground lug on ground studs of the PDA and secure using two M6 nuts and washers. Torque nuts

to 3.4 N–M (30 in–lbs).

4 Verify that circuit breakers are disengaged (pulled out or set to “O” position).

5 Verify that DC power source is OFF.

6 Connect +27 V power plug.

7 Turn on DC power.

8 On PDA, set circuit breaker switch to “1” position.

9 Push in 1U circuit breaker.

10 Notify operator that replacement is complete and verify that no new alarms have been generated and

that old alarms are cleared.