The Comnet FDC10RM1B Bi-Directional Contact Closure is an advanced transceiver designed for reliable bi-directional transmission of contact closure signals over multimode optical fiber. This module features a contact input with a 0.5 amp output, two relay outputs, and one relay input, ensuring seamless communication and control across distances of up to 69 km (43 miles). Its robust design meets stringent environmental standards, making it ideal for various applications in traffic signal control and more.
Comnet FDC10RM1B Features
- Transmits: A single contact closure in one or two directions, allowing for versatile communication options.
- Distance: Operates effectively up to 69 km (43 miles), making it suitable for long-range applications.
- Relay Output: 30 VDC, 0.5 amp, normally open, providing reliable control with minimal power consumption.
- Architecture: Point-to-Point transmission ensures a direct and efficient communication path.
- Environmental Compliance: Fully compliant with NEMA TS-1/TS-2 and Caltrans Specifications, ensuring durability in harsh conditions.
- Installation: Plug-and-play design allows for quick setup without the need for electrical or optical adjustments.
- Carrier Detect: Relay contact for Carrier Detect (normally closed with carrier present) enhances operational reliability.
- Current Limiters: Automatic resettable solid-state current limiters protect against overloads.
- Voltage Protection: Transient protection on all lines safeguards against surges and voltage spikes.
- Modularity: Can be used as a stand-alone unit or mounted in a ComNet C1 Card Cage; fully hot-swappable for easy upgrades.
- LED Indicators: Bi-color LEDs provide clear feedback on operating status with separate indicators for relay positions.
Comnet FDC10RM1B Specifications
| Feature | Details |
| Transmission Type | Bi-Directional Contact Closure |
| Operating Distance | Up to 69 km (43 miles) |
| Relay Output | 30 VDC, 0.5 amp, normally open |
| Architecture | Point-to-Point |
| Environmental Standards | NEMA TS-1/TS-2, Caltrans Specification |
| Installation Type | Plug-and-play |
| Carrier Detect | Relay contact, normally closed with carrier present |
| Current Limiting | Automatic resettable solid-state |
| Voltage Protection | Transient protection on all lines |
| Modularity | Stand-alone or ComNet C1 Card Cage, hot-swappable |
| LED Indicators | Bi-color indicators for relay status |



















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