User Manual

Initial Power Up Tests & Procedures – continued
5/21/04 1X SC4812T–MC BTS Optimization/ATP 2-7
DRAFT
Table 2-5: Initial Power–up (BTS)
Step Action
1 At the BTS, set the C–CCP (POWER) power distribution breakers (see Figure 2-3) to the ON position
by pushing in the breakers.
2 Insert the C–CCP fan modules. Observe that the fan modules come on line.
3
! CAUTION
Verify the correct C–CCP power supplies by observing the locking/retracting tabs appear as follows:
Insert and lock the power supplies into their associated slots one at a time.
• If no boards have been inserted, all three PWR/ALM LEDs would indicate RED to notify the user
that there is no load on the power supplies.
– If the LED is RED, do not be alarmed. After Step 4 is performed, the LEDs should turn GREEN;
if not, then a faulty power supply is indicated and should be replaced before proceeding.
STPN 4009B
PWR C–CCP 4812 +27V
4 Seat and lock all remaining circuit cards and modules in the C–CCP shelf into their associated slots.
5 Seat the first equipped PA module pair into the assigned slot in the upper PA shelf including PA fan.
6 Repeat Step 5 for all remaining PAs.
NOTE
Engage circuit breakers only for PAs that are equipped.
7 Set the PA breakers to the ON position (per configuration) by pushing them IN. See NO TAG for
breaker panel layout.
Engage (push) PA circuit breakers.
S Confirm LEDs on PAs light.
8 After all cards/modules have been seated and verified, use a digital voltmeter to verify power supply
output voltages at the top of the frame remain within specifications:
On –48 V BTS: –48 Vdc
nominal
On +27 V BTS: +27 Vdc nominal
9 Repeat Steps 1 through 8 for additional co–located frames (if equipped).
2