CANOGA PERKINS 2461 E1 Modem - Manual (Page 22)

EdgeAccess Universal Chassis System
Figure 15. Input and Output Alarm Relay Connectors on the back of the 2461 stand alone modem
(2461-1400, DC version)
Viewing the rear panel of the modem, J19 is the leftmost (6) 6-pin modular connector; J16 is to
the right of J19. Pin 1 is on the right side of each modular connector.
2.3.1 Input Alarms
J19 (alarm input) connector pinout :
1 - Chassis gnd.
2 - Minor alarm contact a
3 - Minor alarm contact b
4 - Chassis gnd.
5 - Major alarm contact a
6 - Major alarm contact b
Operation:
An external contact closure between pins 5 and 6 will cause a MAJOR alarm
An external contact closure between pins 2 and 3 will cause a MINOR alarm
2.3.2 Output Alarms:
J16 (alarm output) connector pinout : (ref: de-energized/alarmed state)
1 - Minor alarm N/O
2 - Minor alarm common
3 - Minor alarm N/C
4 - Major alarm N/O
5 - Major alarm common
6 - Major alarm N/C
2461 Modem User Manual 2-4