User's Manual

CSM System Time – GPS & LFR/HSO Verification
68P09258A31–A
Oct 2003
1X SCt 4812T BTS Optimization/ATP
3-48
GPS Initialization/Verification
Follow the procedure in Table 3-20 to initialize and verify proper GPS
receiver operation.
Prerequisites
Ensure the following prerequisites have been met before proceeding:
S The LMF is not logged into the BTS.
S The COM1 port is connected to the MMI port of the primary CSM via
a null modem board (see Figure 3-11).
S The primary CSM and HSO (if equipped) have been warmed up for at
least 15 minutes.
CAUTION Connect the GPS antenna to the GPS RF connector ONLY.
Damage to the GPS antenna and/or receiver can result if the
GPS antenna is inadvertently connected to any other RF
connector.
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