OnLine Power Telecommunication - Manual (Page 42)

OnLine Power
4-2
REV A
4-3 REMOVAL OF ELECTRONIC TRAY FOR SERVICING
• Check each wire has an identification tag before removing.
• Remove the DB-9 plug with external cable by unscrewing 2 screws. Remove all connectors (J10,
J11, J12, J15, J18) at TB1, so the tray can be disconnected from TB1. Disconnect Battery
connector (Red & Black, J2/P2), heater J5/P5 connector and thermoprobe connector J3/P3 that are
connected to bottom two trays. Check that the wire/plug tags are correct and readable.
• Remove the four (4) Hold Down Screws at the bottom lip of the Electronic Tray.
CAUTION
Carefully slide the Tray out of the cabinet, the Electronic tray weight approximately 55 lbs.
4-4 REPLACING OF ELECTRONIC TRAY
• Carefully slide the Tray into the cabinet. Use care to guide it in straight.
• Connect all the connector (J10, J11, J12, J15, J18) at TB1 & the three connectors (J2, J3, J5) going
to bottom two trays per Section 4-3.
• Install the four (4) Hold Down Screws at the bottom lip of the Electronic Tray and Torque to 76
in/lbs.
• Check the identification tag of each connectors before reconnecting.
• Test the PBC-II operation in the normal mode by following section 3 - 13 through 3 - 16.
4-5 BATTERY REMOVAL AND SERVICING
WARNING!
FOR HOT SWAPPING USE EXTREME CARE AS MAIN AC LINE IS NOT
TURNED “OFF” OR LOCK AND TAG OUT OF SERVICE. USE A DIGITAL
METER CHECK ALL TERMINALS OF TB1 FOR ANY VOLTAGE.
• Turn CB 9 to ”OFF ”. Unplug the Red and Black connector (J2/P2) from the Battery Jack. Unplug
the White connector J5/P5 for battery heaters and a white connector J3/P3 for the thermoprobe.