COMSPHERE ±48 Vdc Central Office Power Unit
CO Power Unit Installation
The CO Power Unit is installed at the bottom of the carrier. You will need a large,
NOTE
If you plan to use two power modules in your CO Power Unit, you must install the second power module before proceeding to Step 1. (See the Installing the Optional Second Power Module section.)
The following is an overview of the CO Power Unit installation procedure:
"Procedure
1.Set the option straps on the CO Power Unit's backplane to the desired mode of operation. (See the Setting the Option Straps section.)
If your CO Power Unit has a single power module, you do not need to set the option straps. The option straps are factory set for the Basic mode of operation. However, you should compare the option strap setting on backplane to the strap settings listed in Table
2.Install the CO Power Unit into the carrier. (See the Installing the CO Power Unit section.)
3.Provide power to the CO Power Unit. (See the Providing Power to a CO Power Unit section.)
4.Install the Shared Diagnostic Control Panel (SDCP) on the carrier in which you installed the CO Power Unit, if desired. (See the Installing an SDCP section.)
5.Connect the alarm contacts for the CO Power Unit to a CO alarm system and/or a Modular 3611 DSU, if desired. (See the Connecting the Alarm Contacts to a CO Alarm System section or the Connecting the Alarm Contacts to a 6800 Series NMS Via a Modular 3611 DSU section.)
Steps 4 and 5 are optional.
Installing the Optional Second Power Module
You can order a second power module for your CO Power Unit. This additional power module allows you to choose between two modes of operation: Redundant or Independent. You must install the optional second power module into the CO power tray before installing the CO Power Unit into the carrier.
To install the optional second power module:
"Procedure
1.Remove the coverplate by loosening the two captive screws on the bottom of the coverplate.
2.Place the second power module in the card guides on the right side of the CO power tray (as viewed from the front of the tray) and then slide power module to the rear of tray. See Figure
3.Tighten the two captive screws on the bottom of the power module's faceplate.
May 1998 |