Installation Instructions

1X UBS Macro B T S FRU 220 V AC P ower Supply Module (PSM) Shelf
Required items
Documents
• 1X UBS Macro BTS Optimization/A TP manual.
Tools
• T orque driver
• T25 TORX driver
• T20 TORX bit with 12 -inch extension
• Flat blade screwdriver
Torque requirements
• PSM shelf mounting screws; 4.77 N -m (42 in -lb)
• PSM captive M4 retaining thumbscrew , 2.37 N -m (21 in -lb)
• T erminal block cover box screws, 1.6 - 1.8 N -m (14 - 16 in -lb)
Replacement unit
• 220 V AC PSM shelf assembly (Motorola model STHN4092)
Prerequisites
Coordinate this repair task with the OMCR operator .
68P09283A64 -3 10 -11
FOA SEP 2007