Schneider Electric Triconex 4703X Fiber I/O Bus Interface Module
The IMFF module that extends the Tricon CX I/O bus through approved SFP links.
Product Profile
4703X is the Tricon CX I/O Bus Interface Module Fiber-Fiber, used in the 8131X I/O Expansion Chassis. It receives the fiber IOP bus and provides fiber plus RS-485 serial outputs.
Supported Gigabit fiber protocols use compatible SFPs. Both link ends, fiber type, optical budget, distance and chassis route must be engineered together.
Technical Data
| Manufacturer | Schneider Electric Triconex |
|---|---|
| Exact Model | 4703X |
| Platform | Tricon CX |
| Product Type | I/O Bus Interface Module Fiber-Fiber (IMFF) |
| Supported Chassis | 8131X I/O Expansion Chassis |
| Serial I/O Bus | RS-485, up to 100 ft / 30 m |
| Fiber Protocols | 1000Base-SX, LX, LX10, EX and BX10 via SFP |
| Fiber Distance | Up to 43.5 miles / 70 km with matching supported SFPs |
| Indicators | Green PASS and red FAULT |
System Role
Extends the Tricon CX I/O bus between main and expansion chassis over fiber.
Provides onward fiber and local RS-485 I/O-bus connections.
Displays module pass and fault status.
Supports long-distance or electrically isolated I/O placement.
Compatibility
- Match the documented 8131X chassis and slot.
- Use supported SFPs with matching wavelength, fiber and optical budget.
- Record every port, patch panel, fiber pair and connected module.
- Test optical status, I/O communication, redundancy and affected safety loops.
Applications
- Remote Tricon CX I/O expansion across plant areas.
- Safety layouts needing electrical isolation between locations.
- Long-distance links engineered with approved SFP and fiber combinations.
FAQ
Which optical details are required before quoting 4703X?
Provide SFPs at both ends, wavelength, fiber, connectors, distance and patch losses.
Can any Gigabit SFP be installed in 4703X?
No. Use a reviewed SFP combination and verify both link ends.
What chassis information should accompany 4703X?
Send 8131X identity, slot, topology, release and diagnostics.
How should the fiber path be accepted after replacing 4703X?
Check optical power, PASS/FAULT, communications, redundancy and safety loops.
Why document unused 4703X ports?
The approved configuration may require unused outputs to be disabled.
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