Avigilon Alta Readers and ACUs communicate via RS-485. The following wire types are compatible, listed in the order of preference which impacts distance.
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Ideally, use one twisted pair for GND and VIN (power) and one twisted pair for +B and -A (data).
Wiring Information
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Note: For elevators, all relays and readers must be connected to the same ACU. If you need more than four access-controlled floors or readers, add the Avigilon Alta Elevator Expansion Module. |
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