The GE Fanuc IC200ACC201 functions as a critical passive component for the VersaMax PLC I/O expansion architecture. This terminator plug must reside at the final physical node of any expansion daisy chain to ensure reliable high-speed data communication. By providing precise impedance matching, the IC200ACC201 eliminates signal reflections that lead to bus corruption, intermittent communication loss, and CPU watchdog timeouts. It acts as the definitive "end-of-line" marker for the expansion transmitter (ETM) and receiver (ERM) modules, maintaining the electrical integrity of the entire PLC subsystem.
| Feature | Professional Specification |
| Model Number | IC200ACC201 |
| Manufacturer | GE Fanuc / Emerson |
| System Compatibility | VersaMax PLC I/O Expansion Systems |
| Component Type | Passive Bus Terminator |
| Interface | Multi-pin D-type Serial Port Compatible |
| Placement | "Expansion Out" Port of the Final Rack |
| Power Consumption | 0 mA (Fully Passive) |
| Operating Temp | 0 °C to +60 °C (32 °F to 140 °F) |
| Storage Temp | -40 °C to +85 °C (-40 °F to 185 °F) |
| Protection Rating | IP20 |
| Dimensions | 50 mm x 30 mm x 20 mm |
The IC200ACC201 provides essential electrical stabilization for complex automation networks:
Elimination of Signal Reflection: High-speed expansion buses suffer from "signal bounce" when they reach an open-ended port. The IC200ACC201 absorbs these residual waves, preventing them from traveling back up the cable and colliding with new data packets.
Stable High-Speed Communication: This terminator maintains the specific characteristic impedance of the VersaMax expansion bus. This stability allows the system to operate at maximum baud rates across multiple racks without increasing the Bit Error Rate (BER).
Simplified Troubleshooting: Using a physical terminator plug in the final rack simplifies diagnostic routines. Technicians can instantly verify the physical limits of the I/O bus, ensuring that the system logic matches the physical hardware layout.
Zero-Power Deployment: As a passive device, the IC200ACC201 requires no external power supply or software configuration. It functions purely through calibrated resistive circuitry, making it a maintenance-free addition to the control cabinet.
Is this GE Fanuc IC200ACC201 unit brand new?
Yes. We supply the IC200ACC201 in 100% Brand New and Original condition. Each plug ships in original factory packaging to ensure that the internal resistive components and connector pins meet OEM tolerances.
In which port should I install the IC200ACC201?
Install the IC200ACC201 into the "Expansion Out" port of the very last expansion rack in your daisy chain. Do not install it in middle racks or the main CPU rack unless that rack is the only node in the system and requires termination.
What happens if I forget to install the terminator?
Operating a VersaMax expansion system without the IC200ACC201 often results in intermittent "Loss of I/O Module" faults or "Bus Communication" errors. While the system might appear to work in short chains, signal reflections will eventually cause data corruption as you add more modules or experience electrical noise.
Does this terminator work with VersaPoint or RX3i systems?
No. The IC200ACC201 is specifically designed for the VersaMax PLC expansion bus. Other GE or Emerson series use different connector styles and impedance ratings. Always use the terminator matched to your specific PLC hardware family.
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