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What are the pinouts for the Output Relay on the Environmental Monitoring Unit (AP9319) and the Environmental Management System (AP9320)?

Published date: 04 June 2019

Below are the pinouts:


Pin #



 No Connection

 2, 3

 Normally Closed (NC) Contact

 4, 5


 6, 7

 Normally Open (NO) Contact (recommended connection)


 No Connection

Relay ratings: 1A, 30V AC/DC

Since the user interface allows for either 'normally open' or 'normally closed,' APC recommends using only the normally open contacts and configuring the 'normal' state in the user interface.


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