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68P64115A21–B
Initial Power-up (BTS)
Step
1
At the BTS, set the C–CCP (POWER) power distribution breakers (see Figure 2-3 on page 2-8) to
the ON position by pushing in the breakers.
2
Insert the C–CCP fan modules. Observe that the fan modules come on line.
! CAUTION
3
Verify the correct C–CCP power supplies by observing the locking/retracting tabs appear as follows:
STPN 4009B
PWR C–CCP 4812 +27V
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.
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 Figure 2-3 for
breaker panel layout.
Engage (push) PA circuit breakers.
Confirm LEDs on PAs light.
S
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).
Sept 2003
The procedure must be performed on each frame after input power from
the common power supply has been verified. Follow the steps in
Table 2-5 to apply initial power to the cards/modules within the frame
itself, verifying that each is operating within specification.
Table 2-5: Initial Power–up (BTS)
1X SC 4812T-MC Multicarrier BTS Optimization/ATP
Initial Power–up Tests and Procedures
Action
2
2-11
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