Honeywell CC-SDRX01 Conversion Module

The Honeywell CC-SDRX01, also cataloged as the CC-SDRX01 Fiber Optic Converter Module, operates as a dedicated hardware component for deterministic optical communication and I/O link interface conversion within Experion PKS platforms. Designed to interface field control racks with controller backplanes over extended distances, the module converts electrical I/O bus signals to high-speed optical pulses across a 9-port fiber array, isolating control network segments against high-voltage industrial interference while maintaining real-time signal propagation speed.

Hardware Specifications

4-20 mA HART Loop Protocol & Channel Isolation

The module provides galvanic and optical isolation between the master controller rack and downstream I/O expansion chassis. Signal processing hardware converts local backplane commands into noise-immune optical signals over 9 multi-mode fiber ports, preventing earth ground potential loops from affecting 4-20 mA HART loop protocol accuracy and downstream analog channel reliability. This optical barrier eliminates high-voltage transients, electrical noise, and electromagnetic interference along the transmission path, preserving deterministic update rates and signal resolution for sensitive analog field loops connected to peripheral I/O racks.

Frequently Asked Questions

Q: What is the primary function of the 9 fiber optic ports on the module?

A: The 9 optical ports serve as redundant and branch communication endpoints for the Honeywell I/O Link bus. They allow a single controller node to communicate with multiple remote I/O bases using fiber cables to bridge long physical distances without signal degradation.

Q: Can the module be replaced live while the rest of the control network is operational?

A: Yes, the module supports hot-swap replacement when installed in a dual-redundant I/O Link topology. Removing or inserting the module on an active rack will not disrupt communication on the redundant link path, provided the parallel optical channel remains connected.

Field Installation Guidelines

• Mount the module into the designated slot on the C300 chassis, ensuring the rear connector fully seats into the backplane guide rails.
• Inspect all 9 optical fiber connectors for dust and contamination prior to insertion; clean with lint-free optical wipes if necessary.
• Observe minimum bend radius limits (typically 30 mm) when routing fiber optic cables inside the enclosure to avoid optical attenuation or glass fiber breakage.
• Ensure all unused optical ports are sealed with protective dust caps to prevent ambient dust from coating the internal optical transceivers.
• Maintain separate routing paths for fiber links and high-voltage AC power lines to avoid mechanical damage during routine panel maintenance.