GE IC660TBD120 I/O Terminal Assembly

The GE IC660TBD120, also cataloged as the IC660TBD120 Terminal Assembly, operates as a dedicated hardware component for field wiring termination and mechanical interlock execution within GE Genius I/O networks. The terminal base accepts incoming field signal wiring and provides structural backplane interconnectivity for Genius electronic blocks (specifically interfacing with the IC660EBD120 electronic assembly for IC660BBD120 series blocks). It functions as a permanent wiring housing, allowing electronic modules to be detached without disturbing field terminal connections.

Hardware Specifications

Deterministic Network and I/O Density Scaling

The IC660TBD120 terminal assembly maintains backplane bus communication velocity across internal serial pass-through connections to the mated electronic module. Supporting clean I/O density scaling in localized control cabinets, the rigid terminal connections maintain low contact resistance and prevent signal distortion during high-speed data acquisition. Strict firmware flash compatibility is maintained across all attached electronic units, securing stable diagnostic reporting and scan synchronization to the host controller.

Frequently Asked Questions

Q: Can the IC660EBD120 electronic module be removed from the IC660TBD120 without disconnecting field wires?

A: Yes, the IC660TBD120 holds all physical field wiring directly on its terminal strip, allowing the attached electronic module to be unlatched and swapped independently.

Q: Does the IC660TBD120 terminal assembly require an auxiliary power supply to function?

A: No, the unit is a passive wiring interface comprising terminal points and internal connector traces with zero active electronic components.

Q: How is ground continuity maintained through the IC660TBD120 assembly?

A: The terminal assembly features a direct grounding conductor point designed to bond to the cabinet protective earth (PE) bus via the mounting layout.

Field Installation Guidelines

1. Mount the IC660TBD120 terminal assembly securely to the enclosure panel backplate using standard mounting hardware.
2. Isolate all field power circuits and main control supply voltages prior to landing field wiring onto the screw terminal blocks.
3. Terminate field input, output, and power wiring securely according to the block wiring pinout using properly sized conductors.
4. Align the IC660EBD120 electronic assembly with the terminal base guides and press firmly until the locking tabs snap shut.
5. Verify that the terminal assembly ground lug connects directly to the cabinet protective earth (PE) bus bar to suppress electrical noise on serial communication lines.