What you need to know
A normal door-contact test does not prove line supervision. Commission the exact controller and resistor scheme by creating safe open- and short-circuit faults.
Potentially affected
AXIS A1610 Network Door Controller installations using supervised door monitor, request-to-exit, or other inputs with end-of-line resistors.
DSE recommendation
Verify resistor placement and configured values, then create controlled normal, active, open-line, and short-line states and confirm distinct alarms reach the operator.
Bottom line: seeing door open and door closed proves only two functional states. A supervised circuit is intended to distinguish expected operation from wiring faults or tampering, so acceptance must include controlled fault states at the end of the installed run.
Source fact: the A1610 supports supervised inputs with end-of-line resistors
The AXIS A1610 Network Door Controller User Manual — Supervised inputs documents supervised door-monitor and input connections using end-of-line resistors. It identifies supported resistor configurations and describes alarm behavior for an interrupted connection.
The physical placement of the resistor matters. A resistor fitted inside the controller cabinet can make the panel see an expected value while leaving most of the field cable and contact outside the supervised boundary.
Source boundary and applicability
The manual applies to the A1610 and the documented hardware/firmware context. Terminal functions, resistor values, wiring limits, alarm names, and configuration differ across controllers and products. This article does not authorize live shorting, bypassing, or modifying energized field wiring. Qualified access-control and electrical personnel must use the exact manual, site design, and safe work procedure.
Applicability questions
- Which inputs are configured as supervised and which resistor scheme is documented for each?
- Are the end-of-line components physically located at the monitored device or another approved endpoint?
- Can the system distinguish normal, active, open, and short conditions?
- Which event name, priority, notification, and ticket should each fault create?
- Does an offline controller retain and forward the fault after reconnection?
DSE recommendation: commission electrical state through operator response
The following steps are DSE recommendations based on the cited source.
Compare drawings, actual termination, configured supervision type, and the exact current manual before testing. In an approved maintenance window, have qualified personnel create each state with a supported test method at the field endpoint: normal, active, open-line, and short-line. Protect life safety, maintain alternate monitoring, and restore the circuit after every test.
At the same time, verify controller indication, server event, operator alarm, timestamp, door identity, notification, acknowledgement, and recovery. Confirm a fault does not masquerade as an ordinary door opening or silently clear without history. Correct resistor placement and mapping under change control.
Repeat one test at the cabinet and one at the field endpoint when the approved design allows it. Different results can reveal that only part of the installed conductor is supervised.
Verification and evidence
Retain approved point schedules, exact product and firmware, resistor and wiring documentation, photographs of authorized terminations, instrument or test method, event logs for every state, notification and acknowledgement evidence, restoration check, deficiency tickets, and qualified acceptance. Do not publish sensitive wiring details broadly.
Official references
- AXIS A1610 Network Door Controller User Manual — Supervised inputs – Axis Communications
Review the official source
AXIS A1610 Network Door Controller User Manual — Supervised inputs · Verified August 25, 2026
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