Ajax MultiTransmitter (Jeweller) – 18-Zone Wired-to-Wireless Integration Module (Black, 9NA)

Product Overview

The Ajax MultiTransmitter Jeweller (SKU: 28305.62.BL3, 9NA region frequency) is an advanced integration module designed to upgrade legacy third-party wired security systems into modern, smartphone-controlled Ajax smart ecosystems. Featuring 18 dedicated wired zones, MultiTransmitter enables security installers to seamlessly connect third-party hardwired detectors—including PIR motion sensors, magnetic door contacts, glass break detectors, IR barriers, gas detectors, and panic buttons—directly to an Ajax Hub.

Operating over the encrypted Jeweller wireless radio protocol across open-space distances up to 2,000 meters (6,550 ft}), the module transmits detailed alarm events to CMS and users in just 0.15 seconds. MultiTransmitter supplies 12 VDC (1 A total) auxiliary power directly to connected third-party wired devices and features a dedicated bay with an integrated charging circuit for a 12 VDC  (up to  7 Ah/8.5 Ah) sealed lead-acid backup battery, ensuring uninterrupted perimeter operation during power outages in a secure black housing.

Key System Features & Functionality

• 18 Wired Zone Integration: Connects up to 18 independent third-party hardwired sensors (NC, NO, EOL, 2EOL, 3EOL resistor configurations) to an Ajax system.

• 12 VDC Auxiliary Sensor Power: Supplies up to 1A of steady 12 VDC auxiliary output to directly power connected wired sensors and active IR beams.

• Integrated Battery Backup & Charger: Dedicated internal bay accommodates a 12 V (4 to 7 Ah) SLA backup battery with automatic charging and low-battery monitoring.

• Versatile Detector Type Assignment: In the Ajax app, each of the 18 wired zones can be individually designated as intrusion, fire, medical, panic, gas, or temperature alerts.

• Encrypted Jeweller RF Link: Two-way encrypted communication operating up to 2,000 meters (6,550 ft) with anti-jamming frequency hopping.

• Dual Tamper Sabotage Protection: Protected against unauthorized enclosure opening and detachment from the wall via integrated front and back tamper switches.

• Instant Alarm Delivery: Relays wired sensor trips and alarm signals to the central hub and monitoring stations in just 0.15 seconds.