Paradyne 3600 Series, 3611, 3610 manual Connecting the Alarm Contacts to a CO Alarm System

Page 32

COMSPHERE ±48 Vdc Central Office Power Unit

3.Secure a nylon cable tie in the handle mounting holes.

4.Place the power module in the card guides and slide the power module to the rear of the carrier. When sliding the left power module into the CO Power Unit, hold the SDCP ribbon cable to the left of the power module. Then, tighten the two captive screws on the front of the power module (see Figure 2-3).

5.If the CO Power Unit has an optional second power module, repeat Steps 2 through 4 for the right power module and proceed to the next step.

6.Attach the SDCP ribbon cable to the back of the SDCP as shown in Figure 2-8.

7.Mount the SDCP to the front of the carrier by securing the two top captive screws of the SDCP into the two bottom screw holes of the carrier.

Connecting the Alarm Contacts to a CO Alarm System

The CO Power Unit monitors the power output levels and the fan's low-speed sensor for proper operation of the power module. Both major (power failure) and minor (fan failure) alarms can be sent to a CO alarm system. A major alarm is sent to a CO alarm system if a power failure occurs in either the ± 48V input or low voltage output. A minor alarm is sent to a CO alarm system if a fan failure occurs or if the fan speed drops below 1900 rpm. After the CO Power unit is installed, you can connect the power unit to a CO alarm system.

NOTE

The CO alarm cables and mating connectors are customer-supplied components.

To connect the CO Power Unit to a CO alarm system:

Procedure

1.At the rear of the carrier, locate the cable connectors labeled Alarm A and Alarm B (see Figure 2-4).

2.To send alarm signals from the left power module to a CO alarm system, plug a customer-supplied mating connector (AMP part number 103957-4) and cable into the Alarm A connector. To send alarm signals from the right power module, if the CO Power Unit has two power modules, to a CO alarm system, plug a customer-supplied mating connector (AMP part number 103957-4) and cable into the Alarm B connector.

For pin assignments of the Alarm A and Alarm B connectors, see Appendix A of this guide.

2-16

May 1998

3000-A2-GB41-40

Page 31 Page 33
Image 32
Page 31 Page 33
Contents Comsphere ±48 Vdc Central Office Power Unit Copyright  1998 Paradyne Corporation. All rights reserved Warranty, Sales, and Service InformationTrademarks Important Safety Instructions Comsphere ±48 Vdc Central Office Power Unit Table of Contents Interface Connections Glossary Index List of Figures Technical Specifications for Central Office CO Power Unit List of TablesPreface Objectives and Reader AssumptionsAbstract Related DocumentsComsphere ±48 Vdc Central Office Power Unit Introduction OverviewFeatures 2illustrates the CO Power Unit with two power modulesCentral Office CO Power Unit with One Power Module Technical Specifications ±48 VdcEquipment Warranty Support WeightComsphere ±48 Vdc Central Office Power Unit May Installation Considerations Basic Mode of OperationIndependent Mode of Operation Ambient 3611 DSUs 3551, 3611,3161 DSU/CSUs Without DBMs DSUs with DBMs DSUs, 3151 and CSUsRedundant Mode of Operation Alarm Forwarding to a 6800 Series NMSProcedure CO Power Unit InstallationInstalling the Optional Second Power Module Installing the Optional Second Power Module Setting the Option Straps Settings for Basic ModeIndependent Mode Settings for Independent ModeInstalling the CO Power Unit Series Carrier Installation ManualCO Power Unit Installation Providing Power to a CO Power Unit Comsphere 3000 Series Carrier RearAMP Procedure GRD Optional Fuses -48V GRD Vdc Power Source a Installing an Sdcp  ProcedureConnecting the Alarm Contacts to a CO Alarm System Ext Leads RPowr Procedure Installation Air Filter and Brackets Installation Optional 11. Air Filter Brackets Installation Comsphere ±48 Vdc Central Office Power Unit May Troubleshooting and Maintenance Indicators and ControlsTroubleshooting Power Module Replacement Instructions Replacing a Power ModulePreventive Maintenance Interface Connections a DC Inputs±48V CO ground return Figure A-2. Connector Housing and Contact CO Alarm System Outputs CO Alarm System OutputsTable A-3 Pin Assignments forNMS Alarm Outputs Figure A-3. NMS Adapter Cable Feature Number 3000-F2-510 Basic mode GlossarySDU Index NMS Index
Top Page Image Contents