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Elausys

KNX Gateways for Alarm Systems / JA-KNX User Manual

General description

Supported alarm systems, integration features and equipment required for JA-KNX.

elausys · 10 September 2026
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The KNX interface module JA-KNX is a KNX gateway for the Jablotron 100 alarm systems. It enables bidirectional communication with the alarm system using the RS485 communication module (JA-121T) from Jablotron.

It allows integrators to take advantage of a fully integrated alarm system including KNX scenarios, automatic lighting using the motion detectors, arming or monitoring the system using a KNX visualization.

Main features:

  • KNX Interface for Jablotron 100 alarm systems
  • Up to 32 bidirectional input/output (PG)
  • Status of each zone in real time
  • Control up to 4 areas (arm/partial/disarm)
  • 9 statuses per area (intrusion, entry, exit, fire,…)
  • Recall of KNX scenes for each status
  • Built-in termination resistor for RS485
  • Communication fault monitoring
  • Galvanic insulation from the KNX bus
  • RX/TX communication status LED
  • Optional DIN-Rail housing

Requirements

Jablotron 100 alarm panel, JA-121T RS485 module, external 12 VDC supply and KNX bus.

Use ETS with the appropriate Elausys alarm gateway application to assign the physical address, set parameters and link group addresses.

Operating limits

Virtual inputs, power supply status and Device Options are not available. Select up to 96 zone status objects using an offset of 0 or 96. See ETS parameter reference. The alarm service mode disables the interface.

Frequently Asked Questions

Which alarm systems are supported?

The JA-KNX gateway supports Jablotron 100 through a JA-121T RS485 module.

Which functions are unavailable?

Virtual inputs, power supply status and Device Options are unavailable.

Keep exploring

Find the other guides for this product in the documentation.

Back to JA-KNX User Manual