The Curtiss-Wright / DY-4 SVME-181-100 is a ruggedized VME 6U single board computer built around a PowerPC 7410 processor with AltiVec Technology, designed for deployment in defense, aerospace, and industrial environments where reliability under thermal, mechanical, and environmental stress is critical. Conformal coating provides multi-layer protection against moisture, humidity, chemical contaminants, dust, vibration, and temperature extremes, extending operational life in harsh field conditions.
## Technical Specifications
**Processor**
• PowerPC 7410 with AltiVec Technology, 32-bit RISC architecture
• Core frequency: 500 MHz maximum
• System bus frequency: 100 MHz
• L1 cache: 64 KB total (32 KB instruction + 32 KB data)
• L2 cache: 2 MB integrated with ECC and parity error detection
• L2 cache bus frequency: 142.9 MHz
• L2 cache data transfer rate: 1.143 GBytes/sec
• Superscalar design with concurrent instruction dispatch and completion
**Memory**
• SDRAM: 512 MB or 1 GB with ECC, 100 MHz frequency
• Flash memory: 48 MB
• SRAM: 32 KB
• Serial EEPROM: 512 bytes for configuration storage
**Interfaces**
• Dual 10/100Base-T Ethernet ports
• Six serial channels: two EIA-232 on front panel; two additional EIA-232 and two EIA-422 on P2 connector
• Two USB ports
• PCI local bus
• VMEbus backplane interface
• Dual PMC (PCI Mezzanine Card) sites
• 8-bit Ultra SCSI (SCSI-2) interface with 16-bit Ultra SCSI capability on select configurations
• External card reset input, ALT_BOOT input, and Cardfail status output
## Key Features
• Conformal coating for environmental and chemical protection
• ECC memory with parity detection on L2 data bus
• Vector processing via AltiVec instruction set extension
• Multiple serial protocol support (EIA-232 and EIA-422)
• Expandable via PMC and PCI interfaces
## Typical Applications
Defense systems, aerospace platforms, industrial automation, mission-critical embedded control where extended temperature range, shock resistance, and vibration tolerance are required.
## Compatibility & Integration
VME 6U form factor integrates into standard VMEbus backplane architectures. Dual PMC sites and PCI bus enable flexible peripheral expansion. Multiple serial and Ethernet interfaces support legacy and modern network protocols.
