Telefire ADR-818 Eight-Channel Input Module

Expand your fire alarm system’s capacity with the Telefire ADR-818 eight-channel input module. This high-performance interface unit allows the connection of up to eight separate conventional detector zones or dry contacts to the Telefire intelligent analog addressable system. It offers a cost-effective and space-saving solution for integrating existing conventional systems or managing high-density monitoring points (e.g., sprinkler flow switches, damper feedback).

The ADR-818 provides eight independent Initiating Device Circuits (IDCs) using Class B (NFPA 72 Style C) wiring. The module occupies eight consecutive addresses on the addressable loop, allowing the control panel to identify, supervise, and control each channel as an individual device. This enables the connection of conventional smoke and heat detector zones or technical signals (e.g., extinguishing release, fault, valve tamper) through a single compact module. The module requires 24V DC external auxiliary power, which is continuously monitored to ensure system reliability in case of voltage loss or fuse failure.

Key Features and Benefits:

• Eight-Channel Capacity: 8 independent input zones in a single module, occupying eight consecutive addresses on the loop (the first address is programmed, the rest are automatically assigned).
• Conventional Zone Interface: Capable of monitoring and powering conventional (non-addressable) smoke, heat, and combined detectors, as well as manual call points.
• Contact Monitoring: Ideal for monitoring the status of dry contacts (e.g., sprinkler flow switches, pressure switches, limit switches).
• Comprehensive Supervision: Monitors input lines for open and short circuits, and continuously checks the external 24V DC power supply and fuse status.
• Power Supply: Requires 24V DC auxiliary power (e.g., from the panel or TPS-34A power supply), which is also used to power the connected conventional detectors.
• Flexible Programming: Each channel can be individually configured in the control panel for different event types (e.g., Fire Alarm, Technical Fault, Supervisory Signal).

Compatible Products and Systems:

• Telefire ADR-3000 Analog Addressable Fire Alarm Control Panel
• Telefire GUARD-V Fire Detection and Extinguishing Control Panel
• Conventional detectors (e.g., Telefire 400 and 200 series: TFO-440, TFH-220F)
• Telefire TPS-34A and TPS-74A Addressable Power Supplies
• Telefire PROG-4000 Handheld Programmer