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Configured for impedance matching and signal reflection suppression in Series 90-30 expansion racks, the GE IC693ACC307 (IC693ACC307 I/O Bus Terminator Plug) provides direct physical/electrical execution.

Hardware Specifications

Parameter Specification
Model IC693ACC307
Brand GE Fanuc / Emerson Automation
Origin USA
Weight 0.09 kg (0.19 lbs)
Dimensions Compact 25-pin D-shell plug format
Operating Temp 0 to 55 deg C (32 to 131 deg F)
Power Consumption Passive hardware component (0 W)
Connector Type 25-pin connector
Resistor Pack Integrated internal termination resistor network
Supported Expansion Cables IC693CBL302 and IC693CBL314
Maximum Expansion Cable Length Up to 15 meters (50 feet) total expansion bus length

Backplane Bus Communication Velocity & Network Integrity

The plug terminates the serial expansion bus interface to stabilize backplane bus communication velocity across multi-rack Series 90-30 controller topologies. Onboard termination resistors prevent differential line reflections on signal paths extending up to 15 meters (50 feet) via IC693CBL302 or IC693CBL314 cable assemblies, guaranteeing I/O density scaling without loss of data frame timing or firmware synchronization across expansion baseplates.

Frequently Asked Questions

Q: Where must the IC693ACC307 terminator plug be installed in an expansion system? A: The IC693ACC307 must be inserted into the unused 25-pin expansion bus connector of the final expansion or remote baseplate in a Series 90-30 daisy-chain system.

Q: Does the IC693ACC307 require an external power supply connection? A: No, the IC693ACC307 is a passive 25-pin plug containing internal resistor networks and requires no external voltage or backplane current draw.

Q: Which expansion cables are officially compatible with the IC693ACC307 bus terminator? A: The module is designed to operate with IC693CBL302 and IC693CBL314 expansion cable assemblies up to a maximum length of 15 meters (50 feet).

Field Installation Guidelines

  • Bus End Identification: Locate the final open 25-pin expansion connector on the last Series 90-30 expansion or remote baseplate in the cable chain.
  • Physical Mounting: Align the 25-pin connector of the IC693ACC307 plug with the baseplate socket and press firmly into place. Fully tighten the integral retention thumbscrews to ensure solid mechanical attachment and continuous shield grounding.
  • Cable Routing: Ensure connecting IC693CBL302 or IC693CBL314 expansion cables do not exceed the maximum system limit of 15 meters (50 feet) total length.
  • Noise Mitigation: Keep expansion cables away from high-voltage AC lines and variable frequency drive outputs to prevent electromagnetic interference on the terminated serial bus.

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