User's Manual Part 2

Initial Power–Up Test – continued

MAY 2004 1X SC480 BTS Hardware Installation, Optimization/ATP, and FRU 5-13

PRELIMINARY

Table 5-12: TME DC Initial Power–Up Test

Step Action

11 If not already done, connect PDA to BTS. (Three appropriately marked cables .)

12 Engage (push in) TME circuit breaker on PDA.

NOTE

Fans on HMS and BTS begin to operate. With TME cable connected the controller for the HMS and

BTS is bypassed, and DC power is supplied as long as the TME circuit breaker is engaged.

13 Using a DMM set to VDC, measure the voltage at the BTS DC Input connector. DMM should indicate

–60 to –40 VDC (or +20 to +34 VDC).

14 Using a DMM set to VDC, measure the voltage at the HMS Controller connector. DMM should

indicate –60 to –40 VDC (or +20 to +34 VDC).

15 If the 1U connector is being used, engage 1U circuit breaker (push in), use a DMM set to VDC to

measure the voltage at the 1U unit connector. DMM should indicate –60 to –40 VDC (or +20 to +34

VDC).

NOTE

If 1U connector is not in use, do not measure at this time.