Description

The GE VME7740-841 is a high-performance VMEbus single-board computer (SBC) engineered for mission-critical embedded applications requiring extreme reliability and real-time processing. As part of GE’s rugged 77xx series VME architecture, this module features dual PowerPC processors with symmetric multiprocessing (SMP) capabilities, delivering deterministic performance for industrial automation, defense systems, and scientific instrumentation. The VME7740-841 supports up to 2GB DDR2 SDRAM with ECC protection and integrates dual Gigabit Ethernet ports, Serial ATA interfaces, and PMC/XMC expansion sites for flexible I/O customization. Its conduction-cooled design (compliant with VITA 20) enables deployment in shock/vibration-intensive environments like mobile military platforms or offshore drilling rigs. With support for real-time operating systems (VxWorks, Linux RT) and backward compatibility with legacy VME64x systems, the GE VME7740-841 provides a scalable compute backbone for modernizing industrial control systems while preserving existing infrastructure investments.

Technical Specifications

Main Features and Advantages

Deterministic Computing: The dual PowerPC architecture of the GE VME7740-841 delivers 2,800 DMIPS processing power with<5>

Ruggedized Design: Featuring soldered memory and conformal-coated PCB, the module withstands 95% non-condensing humidity and 15g mechanical shock. Its conduction-cooled construction eliminates fans for maintenance-free operation in dust-laden environments like cement plants.

Legacy Integration: Backward-compatible VME64x support allows seamless replacement of obsolete controllers in SCADA systems. The dual-redundant Gigabit Ethernet ports enable ring-topology networking for fault-tolerant communications. PMC/XMC expansion accommodates specialized I/O (e.g., fiber-optic interfaces) without custom hardware.

Application Field

The GE VME7740-841 excels in environments where commercial computing platforms fail. In defense systems, it processes radar/sonar data in naval combat management systems. Energy sector applications include turbine control in geothermal plants and substation automation where -40°C operation is critical.

Key implementations:

Transportation: Train control computers for high-speed rail signaling

Industrial: Real-time quality inspection systems for steel rolling mills

Aerospace: Test rig controllers for jet engine component validation

Scientific: Data acquisition in particle accelerator facilities

Maritime: Dynamic positioning systems on drill ships
The module’s conduction cooling and MIL-STD shock resistance make it ideal for mobile platforms like armored vehicles and offshore monitoring buoys.

Related Products

VME7740-840: Single-processor variant of the VME7740-841

IP-Engine2: Compact PCI counterpart for space-constrained installations

VME-7807RC: Radiation-hardened version for nuclear applications

AXP-7448: Air-cooled version for commercial racks

PCI-7340: PCI-based SBC for legacy system upgrades

XVR16: Graphics controller for human-machine interfaces

PMM-16: Power management module for VME backplanes

Installation and Maintenance

Pre-installation preparation: Verify VME64x backplane compatibility (J2 connector populated), ensure chassis grounding<0>

Maintenance recommendations: Monitor operating temperature via onboard sensors using GE’s VxWorks BSP tools. Perform annual reseating to prevent contact oxidation in high-vibration environments. Replace thermal paste every 5 years. For the GE VME7740-841, firmware updates require RTOS-specific bootloader utilities.