UDACT-9100 Digital Alarm Communicator Transmitter and Dialer Module

The Potter UDACT-9100 (P/N 3992500) is a digital alarm communicator transmitter and dialer module that connects Potter fire alarm control panels to a central monitoring station. When the fire alarm control panel detects an alarm, trouble, or supervisory condition, the UDACT-9100 transmits the event signal over standard telephone lines to the monitoring center using industry-standard Contact ID and SIA communication formats — ensuring off-site personnel are immediately notified of any fire alarm signalling event in the protected facility.

The UDACT-9100 supports dual phone line capability, providing a redundant communication path that maintains monitoring connectivity even if the primary phone line is cut or fails. This redundancy is a critical NFPA 72 requirement for supervised alarm transmission to central station monitoring. For facilities where fire alarm monitoring is mandatory — including commercial buildings, healthcare facilities, schools, and industrial sites — the UDACT-9100 is the communication backbone that connects the on-site fire alarm control panel to 24/7 central monitoring infrastructure.

For fire alarm parts suppliers and fire alarm equipment supplies contractors, the UDACT-9100 is a high-demand add-on module for Potter fire alarm control panel installations requiring off-site reporting. It integrates directly with compatible Potter panels without requiring external adapters. Whether you are sourcing from a fire alarm supply store or fire alarm wholesale distributor, keeping this module in inventory ensures you can complete any Potter panel installation requiring central station reporting. For technicians looking for fire alarm testers and commissioning tools, the UDACT-9100's built-in test function allows central station signal verification directly from the panel without requiring a full alarm activation — a key feature for commissioning visits and fire alarm inspection and test records documentation.

Central Station Connectivity

The UDACT-9100 must be programmed with the central monitoring station's phone numbers and account code before commissioning. Verify the central station can receive and decode Contact ID and SIA format signals before completing the installation. Test both primary and backup phone lines independently to confirm dual-path redundancy is operational. Fire alarm signage at the protected premises should identify the monitoring station and emergency contact information as required by the AHJ.

Annual Communication Test

Per NFPA 72, fire alarm communication to a central station must be tested annually. This includes verifying that alarm, trouble, and supervisory signals are correctly transmitted and received at the monitoring center. Document test results in the fire alarm inspection and test records. Fire alarm inspection stickers on the panel should be updated after each successful annual test and fire alarm tags updated as required by local AHJ.

Phone Line Supervision

The UDACT-9100 continuously supervises both phone lines for faults. If either line fails, the module generates a trouble signal at the fire alarm control panel. This supervision is a core NFPA 72 requirement. A line fault that goes undetected could leave the facility without off-site monitoring during a real fire alarm signalling event. Use fire alarm testers and test sign protocols to verify line supervision at each inspection cycle per NFPA 72 fire alarm testing sign requirements.

Can the UDACT-9100 be used with non-Potter panels?

The UDACT-9100 is designed and listed for direct integration with Potter fire alarm control panels. While it uses standard Contact ID and SIA communication formats, using it with non-Potter panels is not recommended as the integration interface is panel-specific. Use a panel-manufacturer-approved DACT for non-Potter systems. For fire alarm stores and fire alarm wholesale distributors stocking multi-brand inventory, this is an important specification detail to communicate to installing contractors.

Does this module support cellular or IP communication?

The UDACT-9100 uses standard telephone line communication. For IP or cellular backup paths required by some AHJs, consult the Potter product line for compatible supplemental communication modules. Many jurisdictions now require dual-path communication with at least one IP or cellular path for new fire alarm installations per updated NFPA 72 editions.

What is the difference between Contact ID and SIA formats?

Both are industry-standard digital alarm communication protocols used between alarm communicators and central monitoring stations. Contact ID is the most widely used and supported by virtually all monitoring centers. SIA is an older format still used at some monitoring facilities. The UDACT-9100 supports both, ensuring compatibility with any fire alarm supply near me or national central station monitoring infrastructure.