Manual

1X UBS Macro B T S FRU E -GPS (External -GPS)
A failed E -GPS should be replaced immediately after failure detection and within
the applicable MSO/QHSO backup time period (i.e., up to 8 hours MSO and up to
24 hours QHSO).
A fter the replacement E -GPS is re -connected and powered up, it may take up to 30
minutes for the replacement E -GPS to successfully track and acquire satellites.
Table 4 -1 FRU R eplacement Conditions
FRU
Ref Designator What to Shut Down...
E -GPS E -GPS
Nothing; FRU is hot swappable and BTS
system timing is backed up by either MSO
(for up to 8 hours) or QHSO (for up to 24
hours).
Required Items
Documents
• 1X UBS Macro BTS Optimization/A TP manual
Tools
• T25 TORX bit
• T orque driver
Torque Requirements
• M5 thumbscrew - 4.77 N -m (42 in -lb)
Replacement Unit
• E -GPS (Motorola model ST TG4052)
68P09283A64 -3 4 -3
FOA SEP 2007