Ajax Transmitter (Jeweller) – Wireless Integration Module for Third-Party Wired Detectors (9NA)

Product Overview

The Ajax Transmitter  28318.18.NC3, 9NA region frequency is a wireless integration module designed to connect third-party wired outdoor and indoor detectors, sensors, and contact devices into the Ajax wireless security ecosystem. Sized to fit inside standard third-party detector housings or junction boxes, it converts conventional wired alarm signals into encrypted Jeweller radio transmissions.

Operating over the proprietary Jeweller wireless radio protocol across distances up to 1,600 meters in open space, the Transmitter features dedicated alarm and tamper wire inputs, an onboard accelerometer to detect module dismantling, and a built-in power supply output (3.3 VDC) to power connected third-party sensors. Powered by three pre-installed CR123A batteries delivering up to 5 years of autonomous operation, it enables seamless wireless upgrades for beam barriers, outdoor PIR detectors, gas sensors, and mechanical perimeter switches.

Key System Features & Functionality

• Third-Party Detector Integration: Connects wired outdoor beams, motion sensors, gas detectors, water level floats, and vibration sensors directly into the Ajax system.

• Autonomous 3.3 V Sensor Powering: Supplies 3.3 VDC operating power directly to connected low-voltage sensors from its own internal batteries.

• Jeweller Wireless Technology: Two-way encrypted radio communication operating across distances up to 1,600 meters (5,250 ft) open-space range with anti-jamming frequency hopping.

• Dual Wire Channels (Alarm & Tamper): Features independent wire leads for alarm contacts (NO/NC) and enclosure tamper contacts for comprehensive sabotage monitoring.

• Built-in Accelerometer Protection: Triggers an instant sabotage alarm if the host detector or integration module is moved, opened, or detached from its mounting position.

• Up to 5 Years Battery Life: Powered by three pre-installed CR123A lithium batteries with advanced energy management.