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    Interlogix GSM/CDMA Cellular Modules for Simon XT/XTi — Specifications

    September 08, 2026 2 min read

    Specifications for Interlogix GSM and CDMA cellular communication modules that add secure Alarm.com wireless signaling and remote monitoring to Simon XT/XTi security panels.

    💾 Download Original PDF
    Full text manual (for reference)

    Interlogix GSM and CDMA cellular communication modules for the Simon XT/XTi security panel — bring Alarm.com's secure wireless signaling, real-time event notification, and web-based remote monitoring/control to the Simon XT/XTi.

    Overview

    These modules provide secure alarm reporting to a central station via SIA or Contact ID over GSM/GPRS (AT&T, T-Mobile) or CDMA (Verizon) — regardless of whether a phone line is installed. They also let Simon XT/XTi users monitor and control their system remotely through the Alarm.com website and mobile apps, with two-way voice over cellular allowing direct communication with a central station during emergencies. Z-Wave–enabled modem versions add control of lighting, thermostats, door locks, and other Z-Wave devices.

    Standard Features

    • Fits within existing Simon XT/XTi housing for quick, easy installation
    • Remote monitoring and control via the Alarm.com website and mobile/PDA devices
    • Remote programming via the AirFx toolkit — dealers can troubleshoot without an on-site "truck roll"
    • Nationwide cellular coverage across 95% of North America's population
    • Z-Wave class modems enable control of lighting, thermostats, door locks, and more
    • Two-way voice over GSM and CDMA lets homeowners speak directly to a central station in an emergency (standard on all models)

    Specifications

    Spec Value
    Compatibility Simon XT/XTi panels
    Dimensions 4.16 x 1.875 in. (106 x 47.6 mm)
    Operating Temperature 32° to 120°F (0° to 49°C)
    Humidity 90% relative humidity
    Power Requirements 6V nominal, 30mA standby current, 1.5A peak current, supplied by Simon XT/XTi panel
    Cellular Network Quad Band GSM/GPRS — operates on the 850, 900, 1800, and 1900 MHz frequency bands

    Ordering Information

    Model Description
    600-1048-XT-ZX-AT AT&T Cellular Modem for Simon XT/XTi Panels; Z-Wave Enabled
    600-1048-XT-ZX-RG Rogers Cellular Modem for Simon XT/XTi Panels; Z-Wave Enabled (Canada Use Only)
    600-1048-XT-ZX-TM T-Mobile Cellular Modem for Simon XT/XTi Panels; Z-Wave Enabled
    600-1048-XT-ZX-VZ Verizon Cellular Modem for Simon XT/XTi Panels; Z-Wave Enabled

    Z-Wave® is a registered US trademark of Zensys A/S. Complies with FCC and Industry Canada regulations. Interlogix is part of UTC Climate, Controls & Security, a unit of United Technologies Corporation.