GE IS200VCRCH1B IS200VCRCH1BBC Discrete I/O Terminal Boards

Configured for discrete input and relay output control in General Electric Mark VI Speedtronic control systems, the General Electric IS200VCRCH1BBC (IS200VCRCH1B Discrete I/O Terminal Board) provides direct physical/electrical execution. The board processes field discrete signals and routes relay outputs across the VME backplane via J3 and J4 ports without requiring an auxiliary daughterboard.

Suffix Breakdown & Model Matrix

Hardware Specifications

Backplane Bus Communication Velocity & Firmware Flash Compatibility

The IS200VCRCH1BBC communicates directly across dual backplane connectors, maintaining low-latency signal distribution and deterministic bus access within the Mark VI rack framework. Onboard dual-port SRAM and static RAM facilitate rapid memory arbitration between field I/O circuitry and the rack controller. High component density, combined with integrated FPGAs and conformal coating protection, ensures stable backplane logic execution and noise immunity under continuous switching loads.

Frequently Asked Questions

Q: Are all revision versions of the IS200VCRCH1BBC backwards-compatible with older hardware iterations?

A: No. Only the first two functional product revisions maintain full backwards-compatibility within the Mark VI architecture.

Q: How does the physical layout of the IS200VCRCH1BBC differ from a standard VCCC board?

A: The IS200VCRCH1BBC eliminates the auxiliary daughterboard present on VCCC modules, enabling single-slot mounting while routing relay outputs via J3 and J4 VME backplane ports.

Q: What front panel diagnostic indicators are present on the module faceplate?

A: The single-slot faceplate includes three LED indicators: Status (orange), Fail (red), and Run (green).

Field Installation Guidelines

Verify that the Mark VI VME rack power supply is turned off before module insertion. Align the board edges with the single-slot card guides and slide the module smoothly into the backplane connectors. Hand-tighten top and bottom faceplate retaining screws to establish chassis ground continuity and prevent vibration loosening. Ensure external cabling attached to front-panel connectors J33 and J44 is strain-relieved and routed clear of adjacent rack slots to maintain proper airflow.