COMSPHERE ±48 Vdc Central Office Power Unit
If an SDCP is mounted on this carrier, remove the SDCP by loosening the two captive screws and disconnecting the SDCP cable. Set the SDCP aside for mounting later on. Loosen the two captive screws on the failed power module. Then, remove the failed power module from the CO power tray by holding onto the nylon cable tie and sliding the power module out.
3.When the failed power module is removed, place the new power module in the card guides and slide the power module to the rear of the carrier. Then, tighten the two captive screws on the bottom of the power module's faceplate.
Remember, if an SDCP needs to be remounted on this carrier, you must remove the handle on the new power module and install a nylon cable tie prior to installing the power module. Also, if installing a new power module into the left side of the power unit, hold the SDCP ribbon cable to the left of the power module when sliding the power module into the CO Power Unit. Once the power module is installed and proper operation is verified, then the SDCP can be mounted.
Preventive Maintenance
In normal environments, you should inspect and/or replace the optional air filter (part number
May 1998 |