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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