AFI RR-81 8-Channel One-Way Contact Closure

Ensure secure, dependable alarm and sensor monitoring with the AFI RR-81 8-Channel One-Way Contact Closure from American Fiberteck. This contact-closure interface consolidates eight Form-C dry contacts onto a single multimode fiber link, simplifying cabling for security, access control, surveillance and remote monitoring applications. The RR-81 uses latching relays to minimize power draw (3W) and offers a user-selectable feature to maintain contact status through power-cycles or loss-of-optical-power — with a reset button to clear all channels when needed. Individual channel LEDs on both transmitter and receiver units, plus DC power and optical presence diagnostics, provide clear, fast visual confirmation of system health and reduce on-site troubleshooting. Designed for plug-and-play installation with a high-density DB26 connector (adapter to screw terminal included), the unit requires no field adjustments and supports reliable integration with alarm panels and networked security systems. Ideal for enterprise security, perimeter monitoring, and distributed surveillance installations—contact our sales team to specify the AFI RR-81 for your next security or monitoring project.

• Reliable remote monitoring of 8 dry-contact inputs over a single multimode fiber, simplifying alarm and sensor aggregation
• Latching Form-C relays and user-selectable status retention preserve contact state through power cycles or optical loss for dependable security events
• Low power design (3W) reduces site power requirements and supports long-term deployments
• Front-panel LEDs and diagnostic indicators (DC power, optical presence, channel status) speed troubleshooting and reduce maintenance time
• DB26 high-density connector with screw-terminal adapter enables fast integration with alarm panels, access control and surveillance systems