Alarm.com LX30B-Q50TU Universal 4G Communicator - AT&T

Alarm.com LX30B-Q50TU Universal 4G Communicator

The Alarm.com LX30B-Q50TU Universal 4G Communicator upgrades compatible security panels with LTE/GPRS alarm reporting, DTMF dial capture, and Alarm.com connectivity. It is built for takeover projects where an existing telephone-line, or POTS, alarm system needs modern cellular communication without replacing the full control panel.

Use it for alarm communicator retrofit installations, third-party panel upgrades, and service calls that require remote reporting through Alarm.com. The LX30B-Q50TU platform supports ContactID and SIA event formats, remote firmware updates, and KeySwitch-based remote arm/disarm control where the connected panel supports that zone function.

This listing accounts for the LA-LX30BQ50T and LA-LX30BQ50TUAUCVZ variants. The shared communicator design includes Smart Connector support for multiple partitions and armed stay, away, and night states, while the variant selection determines the listed carrier/SIM option for the installation.

Key Features

• Universal communicator platform: Retrofits compatible alarm panels designed for telephone-line reporting with cellular Alarm.com communication.
• Carrier variant options: LA-LX30BQ50T lists AT&T and Verizon Global Roaming SIM support, while LA-LX30BQ50TUAUCVZ lists Verizon Global Roaming SIM support.
• DTMF dial capture: Supports CID/SIA event reporting from compatible alarm control panels.
• Remote arm/disarm: Enables KeySwitch Zone control when the connected security panel supports momentary contact arm/disarm operation.
• Remote firmware updates: Allows communicator module firmware updates without replacing hardware.
• Smart Connector support: Supports multiple partitions and armed stay, away, and night states through compatible panel keypad-protocol communication.
• AES encryption: Provides encrypted transmission security for communicator reporting.

Technical Specifications

• Brand: Alarm.com
• Product Type: Universal Communicator
• ADI Part Number: LA-LX30BQ50T
• Manufacturer Part Number: LX30B-Q50TU-AUC
• Variant ADI Part Number: LA-LX30BQ50TUAUCVZ
• Variant Manufacturer Part Number: LX30B-Q50TU-AUC-VZ
• Carrier/SIM - LA-LX30BQ50T: AT&T and Verizon Global Roaming SIM card
• Carrier/SIM - LA-LX30BQ50TUAUCVZ: Verizon Global Roaming SIM card
• Configuration: LTE, GPRS
• Protocols Supported: SIA, ContactID
• Transmission Security: AES encryption
• Serial Interface: RS232 / RS485 transmission speed up to 115200 bps
• LED Status Function: 4 LEDs for cellular signal level, device status, and DTMF communication
• Voltage Supply: 13.8 VDC, acceptable 12 to 14 VDC
• Temperature Range: 14°F to 131°F
• Humidity Range: 5% to 93% without condensation
• PCB Dimensions: 4 x 2.9 inches
• Connector Terminals: +12V, GND, ACM, I/O 1, I/O 2, T1, R1, A, B, DAT, CLK