Comnet FDC10RM1B Bi-Directional Contact Closure, Multimode
SKU
FDC10RM1B
Model No
FDC10RM1B
$605.00
Product Highlights
- Transmits a single contact closure in one or two directions
- Distances up to 69 km (43 miles)
- 30 VDC, 0.5 amp relay output, normally open
- Point-to-Point transmission architecture
- Relay contact for Carrier Detect (normally closed with carrier present)

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The Comnet FDC10RM1B Bi-Directional Contact Closure offers reliable transmission of contact closure signals over a single multimode optical fiber. This versatile transceiver features a contact input, supports a 0.5 amp contact output, and includes dual relay outputs to ensure seamless communication between remote locations. Its robust design is essential for meeting stringent environmental standards, making it ideal for traffic signal control applications.
Comnet FDC10RM1B Key Features
- Transmits: A single contact closure in one or two directions, providing flexible communication options.
- Extended Distance: Operates over distances up to 69 km (43 miles) for extensive network coverage.
- Relay Output: 30 VDC, 0.5 amp normally open relay output for reliable operation.
- Architecture: Point-to-Point transmission ensures direct communication with minimal latency.
- Compliance: Meets NEMA TS-1/TS-2 and Caltrans specifications for robust environmental endurance.
- Installation: Plug-and-play design simplifies the setup process without requiring electrical or optical adjustments.
- Carrier Detect: Relay contact for Carrier Detect, ensuring connection status is easily monitored.
- Current Limiters: Automatic resettable solid-state current limiters protect the system from overloads.
- Surge Protection: Voltage transient protection safeguards against power surges and other transient events.
- Versatility: Can operate as a standalone unit or be mounted within the ComNet C1 Card Cage, with full hot-swap capability.
- LED Indicators: Clear indicating LEDs for confirming operational status, with bi-color indicators illustrating relay positions.
Comnet FDC10RM1B Detailed Specifications
| Feature | Details |
|---|---|
| Type | Bi-Directional Contact Closure Transceiver |
| Input | Contact Input |
| Output | 0.5 Amp Relay Output |
| Relay Outputs | Two Relays |
| Relay Input | One Relay Input |
| Operating Distance | Up to 69 km (43 miles) |
| Environmental Compliance | NEMA TS-1/TS-2, Caltrans Specification |
| Power Input | 30 VDC |
| Design | Plug-and-play Installation |
| LED Indicators | Bi-color for Relay Status |
| Hot-swappable | Yes |
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