Curtiss-Wright / Systran VMESC5 IP Module Carrier

The Curtiss-Wright/Systran VMESC5 is a VMEbus IP Module Carrier that integrates up to five Industry Pack modules into a single VME6U slot, delivering high-density I/O expansion for industrial and embedded systems. The carrier supports up to 250 I/O points and achieves approximately 2.7 million transfers per second for 8- or 16-bit reads and writes, operating as a VME6U slave with A16/D16 transfer capability within a 2 KB address space.

Technical Specifications

IP Module Capacity: 5 modules per VME6U slot

Maximum I/O Points: 250 on a single carrier

Data Throughput: ~2.7 million transfers per second (8- or 16-bit)

VMEbus Interface: A16/D16 transfers within 2 KB block

Interrupt Request Delay: 14 ns typical (IP module to VMEbus)

IACK Daisy-Chain Delay: 64 ns typical

Interrupt Levels: All 10 IP module interrupt requests (2 per module) assignable to any of 7 VME interrupt levels

Hold States: None for I/O, ID, and INT transfers; IP memory transfers not supported

Strobe Connections: 5 total, one per slot

General-Purpose Registers: 5 user-defined registers

Board Base Address: Jumper selectable

Key Features

Individual software reset control for each IP module

Optional P2 connector routing for up to 50 I/O lines

Large ground plane beneath IP modules for analog signal integrity

Field-replaceable fuses with filtered power distribution on all IP sources

Status LEDs for carrier and IP module access diagnostics

ID space write support

Carrier register map including IP Reset, Error Status, and interrupt registers

Typical Applications High-density I/O expansion in VME-based industrial control, data acquisition, and embedded test systems requiring flexible module configuration and field diagnostics.

Compatibility & Integration Designed for VME6U backplanes. Accepts five standard I/O ribbon-cable connectors for IP module integration. Operates as VME slave, receiving timing and bus control from backplane.