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9. Relay Connection
The 5128/29 provides one relay output. You can connect the relay in normally open or normally closed
configurations or both. The relay contacts are rated at 1 A, 24 VDC/24 VAC. See Figure 9-A for relay contact
connections.
The relay can be used for either of the following:
•
To activate for any alarm.
•
To activate for system trouble conditions, loss of AC power, failure of the 5128/29 to communicate, and
phone line troubles.
Figure 9-A: Relay Connection