Appendix A Connecting Alarm Input/Outputs - Honeywell HRHM1041 User Manual

Connecting Alarm Input/Outputs
This appendix contains the following sections:
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Before Connecting Alarm Inputs and Outputs
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Alarm Input and Output Rear Panel Connections
The connections for the alarm input and output channels are described below:
Input/Output
1 to 16
NO1 C1, NO2 C2,
NO3 C3
Before Connecting Alarm Inputs and Outputs, page 143
Alarm Input and Output Rear Panel Connections, page 143
Guidelines for Connecting Alarm Input Ports, page 144
Guidelines for Connecting Alarm Output Ports, page 144
Ensure that the alarm input mode is set to ground.
Ensure that the signal is grounded.
The alarm inputs require low-level voltage signals.
The alarm input mode is set to either NC (normally closed) or NO (normally open).
Use a relay if you are connecting two DVRs, or a DVR plus another device, to separate them.
The alarm output port should not be directly connected to a high-power load. The load
should be less than 1 A to avoid damage.
Use the contactor to make the connection between the alarm output port and the load.
Description
Alarms inputs 1 to 16. The inputs becomes active with low voltage.
Normally open activation outputs (on/off)
Ground
A
A
800-19403 - A - 11/2014