GE VMIVME-7740-840 - VMEbus 64-Channel Isolated Digital I/O Module

GE VMIVME-7740-840 – VMEbus 64-Channel Isolated Digital I/O Module

In stock

Product Introduction:
The GE VMIVME-7740-840 is a high-density, 64-channel digital I/O module for VMEbus systems, specifically built to military specifications. The “7740” designation identifies the 64-channel digital I/O family, while “840” indicates Revision 840, which includes enhanced isolation, improved thermal management, and extended temperature operation. The “M” suffix and the full part number “350-07740-840-M” confirm this is a military-grade variant, rated for operation in harsh environments including extreme temperatures, high vibration, and high humidity. This board is used in defense systems, naval vessels, and aerospace applications where commercial-grade equipment is not acceptable.

Technical Specifications:
Board Type: VMEbus 64-Channel Digital I/O Module
Revision: 840 (Military Enhanced)
Channels: 64 channels (32 inputs + 32 outputs, or 64 inputs, or 64 outputs)
Input Voltage: 24V DC, 28V DC, 125V DC (military standard voltages)
Output Type: Relay (Form C) or Transistor (NPN/PNP, 300mA)
Contact Rating: 5 Amps at 28V DC (relay), 300mA at 24V DC (transistor)
Isolation: 2000V RMS channel-to-channel and channel-to-ground (military grade)
Scan Rate: 1ms (faster than commercial 7740)
VMEbus Interface: D32/A32 with interrupt capability
Operating Temperature: -40 to +85 degrees Celsius (military extended range)
Humidity: 95% relative humidity non-condensing
Vibration: 5g RMS (military specification)
Shock: 40g peak (military specification)
Power Consumption: Approximately 8 Watts
Form Factor: 6U VMEbus Eurocard
Certifications: MIL-STD-810G, MIL-STD-461F (EMI)

Functional Features:
64 Channels in One Slot: Extremely high density reduces the number of VME slots needed, saving space and weight in military racks.
2000V Isolation: Military-grade isolation protects against electromagnetic pulse (EMP) and lightning-induced transients.
Extended Temperature Operation: Functions reliably from -40C to +85C, suitable for desert and arctic deployments.
Vibration and Shock Resistance: Meets MIL-STD-810G for deployment in vehicles, ships, and aircraft.
EMI Hardened: Meets MIL-STD-461F for operation near high-power radar and communication equipment.
Hardware Watchdog: Resets all outputs to a safe state within 1ms of detecting a CPU communication failure.
Conformal Coating: PCB coated with military-grade conformal coating for moisture and corrosion protection.