GE VMIVME-1150 332-001150-120 Input Module

The GE VMIVME-1150 332-001150-120, also cataloged as the VMIVME-1150 Digital Input Board, operates as a dedicated hardware component for processing discrete voltage states within VMEbus architecture networks.

Hardware Specifications

I/O Density Scaling and Backplane Bus Communications

The hardware employs a 64-channel array to achieve high-density scaling within a VME double Eurocard framework. Discrete field signal registers are polled concurrently and written directly to the backplane bus interface. To prevent signal bounce from generating invalid logic states during high-velocity data transfers, the module incorporates optocoupler circuits that decouple the 5 - 48 VDC field loops from the TTL logic lines of the processing rack.

Frequently Asked Questions

Q: Does the VMIVME-1150 332-001150-120 support hot-swapping or live insertion?

A: No. The parallel VMEbus architecture used on this board does not feature staggered power pins. Inserting or pulling the card while the backplane bus is energized will cause voltage transients that can corrupt data or destroy the bus drivers.

Q: How can the input channels be configured for different field sensors?

A: The board layout supports flexible circuit setups, allowing channels to be wired for contact closure sensing, voltage sourcing, or current sinking operations by adjusting external field wiring jumpers.

Field Installation Guidelines

• Mechanical Seat Verification: Insert the module into the designated slot guides of the VME chassis. Depress the dual injector/ejector handles simultaneously to ensure full pin alignment with the backplane connectors before tightening the panel screws.
• Field Cable Isolation: Route all 5 - 48 VDC input wiring paths through distinct, separate wire ways away from high-power alternating current (AC) lines or variable frequency drive cables to suppress electromagnetic noise.
• Shielding Ground Continuity: Connect external signal line shields to a centralized, unpainted enclosure ground bar. Do not ground the cable shield at both ends to prevent creating problematic ground loop currents.