User's Manual

Pre–Power–up Tests
2-6 1X SC 4812T Lite BTS Optimization/ATP FEB 2005
PRELIMINARY
Objective
This procedure checks for any electrical short circuits and verifies the
operation and tolerances of the Cell Site and BTS Power Supply
Modules prior to applying power for the first time.
Test Equipment
The following Test Equipment is required to complete the Pre–Power–up
Tests:
S Digital Multimeter (DMM)
Always wear a Conductive, High Impedance Wrist Strap
while handling the any circuit card/module to prevent
damage by Electrostatic Discharge (ESD).
CAUTION
Cabling Inspection
Using the Site–specific Documentation generated by Motorola Systems
Engineering, verify that the following Cable Systems are properly
connected:
S Receive RF Cabling – up to 12 RX Cables
S Transmit RF Cabling – up to six TX Cables
S GPS
S The Negative DC Power Cable is colored red or blue.
S The Positive DC Power Cable (Ground) is colored
black.
NOTE
DC and AC Power Pre-test
(BTS Frame)
Before applying any power to the BTS Frame, perform the procedure in
Table 2-2 while referring to Figure 2-4 to verify that there are no shorts
in the BTS Frame DC and AC Distribution System.
Table 2-2: DC and AC Power Pre–test (BTS Frame) Procedure
n Step Action
1 Physically verify that all DC and AC Power Sources supplying electric power to the BTS Frame
are OFF (Customer Breakers open, i.e.: High Impedance).
2 Perform the following actions on each BTS Frame.
table continued on next page
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