Alarm and Relay Connections
B-3
Pin Number
Description
11
External Sync Ground
12
External Sync Input
13
Ground
14
Relay—Normally Open
15
Relay—Normally Closed
16
Relay—Common
Connections
Alarms
•
Alarm contact closures must have a resistance of 500 Ohms or less.
•
Connect alarm contacts to inputs 1 through 8 (pins 2 through 9).
•
Connect alarm contact returns to Ground (pin 1 or 10).
External Sync
•
External sync input signal must be 1-5Vrms, 50/60Hz.
•
Connect external sync to input SI (pin 12).
•
Connect external sync ground to Ground (pin 11).
Relay
•
Connections for the internal relay are normally open (NO), normally
closed (NC), and common (C). The relay contact ratings are 0.6A @
120Vac / 0.3A@240Vac.
•
Connect an alarm response device requiring a normally open circuit to
NO
(pin 14) and
C
(pin 16).
•
Connect an alarm response device requiring a normally closed circuit to
NC
(pin 15) and
C
(pin 16).
