Paradyne 3600 Series, 3611, 3610 manual NMS Alarm Outputs

Interface Connections

NMS Alarm Outputs

CO alarms can be sent to a Modular 3611 DSU (which will then notify a 6800 Series NMS) via a 6-wire modular jack on the CO Power Unit's backplane (see Figure A-1).(The Modular 3611 DSU must be configured to forward alarms to a 6800 Series NMS.) Table A-4lists the pin assignments for the NMS adapter cable. Figure A-3illustrates the NMS adapter cable.

Note that a power failure alarm signal is sent to an NMS upon a failure in either the ± 48V input or low

voltage output circuits, and that a fan failure alarm signal is sent if the fan speed falls below 1900 rpm.

NOTE

To avoid potential problems caused by incorrect connections (e.g., grounding the +12 Vdc source), do not set Jumper J21 as shown in Figure 2-10of Chapter 2 if you are not using an NMS adapter cable.

Table A-4

Pin Assignments for the NMS Adapter Cable

EIA 25-Pin	Modular	NMS Alarm Function
Male End 1	Plug End
1 2	6	+12 Vdc Source
11	4	None
14	3	None
16	5	None
19	2	Fan Status Alarm
23	1	Power Status Alarm

1 All other pins on the 25-pin male connector are wired straight through to the 25-pin female connector.

2 This pin only functions as a +12 Vdc source when Jumper J21 is set as shown in Figure 2-10of Chapter 2.

3000-A2-GB41±40 May 1998 A-5