Product Overview

The IC693ACC307 is a passive I/O Bus Terminator for the GE Fanuc Series 90-30 PLC expansion system. It is installed in the final expansion or remote baseplate in a multi-rack configuration to prevent signal reflections and electromagnetic interference along the high-speed parallel bus. This terminator ensures stable communication by preventing faults, parity errors, and rack recognition failures. We supply this unit as 100% brand new to guarantee reliable operation.

Technical Specifications

Engineering Advantages

• Elimination of Signal Reflection:
  The IC693ACC307 prevents signal "bouncing" along the I/O bus, avoiding data corruption and CPU watchdog timeouts.

• Essential for Multi-Rack Systems:
  This terminator plug is required in multi-rack configurations to complete the electrical circuit of the parallel backplane extension.

• Tool-Free Installation:
  The plug easily snaps into the 50-pin expansion port of the last baseplate in your system, requiring no wiring or special tools.

• Durable Passive Design:
  With no active electronic components, the terminator provides a maintenance-free solution for high-speed communication.

FAQs

Do I need the IC693ACC307 if I only have one rack?

No, the terminator is only needed in systems with multiple expansion or remote baseplates.

Where should I install the terminator plug?

Install the terminator in the "I/O BUS OUT" port of the last expansion rack in your system. If you have three expansion racks, it goes in the third.

What happens if I forget to install the bus terminator?

Without the terminator, the PLC may fail to recognize modules in the expansion racks or experience frequent "Loss of I/O Module" errors.

Is the IC693ACC307 compatible with RX3i systems?

No, the IC693ACC307 is designed for the Series 90-30 parallel I/O bus and is not compatible with the RX3i platform, which uses PCI-based expansion.