BUS module for magnetic detectors JA-112M

JA-112M — BUS module for magnetic contacts (2 inputs)

The JA-112M is an addressable BUS device for the JABLOTRON 100+ alarm system, designed to integrate wired magnetic switches used to detect door and window openings. The module reports input status to the control panel and occupies two BUS positions.

Both inputs can be configured as unbalanced, single-balanced, double-balanced or set to roller blind mode. Input inversion and minimum activation time are adjustable from 0.1 s to 300 s, allowing fine tuning to match different contact types and installation conditions.

The module is powered from the control panel BUS (12 V, range 9…15 V). Each input supports up to 100 m of wiring to the magnetic contact. Due to BUS addressing and configuration requirements, installation should be performed by a trained technician or authorized installer following the manufacturer’s instructions.

Key specifications

• Power: BUS 12 V (9…15 V)
• Standby current: 7 mA; max current for cable selection: 12 mA
• Maximum cable length to contact: 100 m per input
• Dimensions: 110 × 44 × 26 mm; weight: 51 g
• Operating temperature: -10 °C to +40 °C; humidity: 75 % RH (non‑condensing)
• Classification: Grade 2 / II (EN 50131‑1)

The JA-112M is compatible with common wired magnetic contacts (examples in Jablotron documentation: SA-201, SA-203, SA-211) and is suitable for reliable wired detection of openings in residential and small commercial installations. Its configurable input modes help reduce false alarms and adapt to tamper- or environment‑sensitive applications.

Ensure correct wiring, BUS addressing and power availability before commissioning.