ADMINISTRATOR MANUAL
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PAGE
Relays
HALO Smart Sensor features two relay controllers that can trigger an external system upon an Event. The
relay controls are set to Normally Closed “NC” by default. The ports can be switched to Normally Open “NO”
by switching jumper pins. The Jumper Pins are located on the board. The top two covers of the HALO Smart
Sensor need to be removed to expose the Relay Jumper Pins.
Once exposed, the default state of each relay can be adjusted independently by moving the jumpers from NC
to NO.
Relay 1
Relay 2
1
2
3
4
Pins 1 & 2 are Relay 1
Pins 3 &4 are Relay 2
V2.2 - 9/09/2020
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