OnLine Power Telecommunication - Manual (Page 41)

OnLine Power
4-1
REV A
SECTION 4 - SERVICING THE POWER BACKUP CABINET
4-1 THE MODULARITY OF INTERNAL COMPONENTS
• The two basic physical assemblies are the Electronic Tray and Batteries.
• Each item can be removed for servicing or repair. The spare assembly can be installed in minutes.
FRONT VIEW OF POWER BACKUP CABINET
ILLUSTRATION 4-1
4-2 SERVICING (STARTS WITH SAFETY)
WARNING!
• Turn CB 2 thru CB9 (all breakers) to ” OFF ” position, next Turn your AC Input power to PBC-II unit
to ”OFF” position. LOCK and Tag “Out of service”. With digital meter, check all terminals of TB 1
and TB 2 for zero voltages. Recheck all terminals of TB 1 and TB 2 and the cabinet to ground, to
be at zero voltage.