Comnet FDC8RS1 8-channel Contact Closure Receiver

Product Description

The COMNET FDC8RS1 is an 8-channel contact closure receiver designed to receive and decode dry contact closure signals transmitted over single-mode fiber optic cable. It is part of a fiber-based signal transport system used in security, access control, and industrial automation installations. The unit accepts a single-mode fiber input and restores the original contact closure states at the receiving end, maintaining signal integrity over long transmission distances. Licensed security integrators and low-voltage technicians are the primary installers of this device.

The FDC8RS1 is suited for applications where multiple contact closure signals must be transported across a fiber backbone, including perimeter security systems, gate control, alarm panels, and building automation networks. It is used in both commercial and institutional facilities where copper-based signal runs are impractical due to distance, electrical noise, or ground loop concerns. Single-mode fiber transport allows deployment over extended cable runs typical of campus and multi-building environments.

Key Features

• 8 independent contact closure channels on a single receiver unit
• Single-mode fiber input for long-distance signal transport
• Restores dry contact closure states at the receive end with high fidelity
• Suitable for security, access control, and industrial automation applications
• Compact form factor appropriate for rack, wall, or enclosure mounting

Compatibility

Designed as an OEM-style receiver for use within fiber-based contact closure transport systems requiring single-mode fiber connectivity and 8-channel capacity.

Installation Notes

Installation should be performed by a licensed low-voltage technician or security systems integrator familiar with fiber optic termination and contact closure wiring practices. De-energize all associated control panels and signal sources before making connections. Follow local codes and manufacturer guidelines for fiber handling, minimum bend radius, and connector cleanliness. Verify transmitter and receiver fiber type compatibility before commissioning the link.