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

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