The Curtiss-Wright/Parvus PRV-1059-21 is a 5-port PC/104 10/100 Fast Ethernet switch engineered for embedded systems operating in harsh environments. This unmanaged switch delivers true non-blocking, store-and-forward switching via a Marvell 88E6060 chipset with 512 Kb on-chip port map memory. Compliant with IEEE 802.3 and IEEE 802.3u standards, it supports auto-negotiation, auto-MDI/MDIX, auto-polarity, and bridge loop prevention across all five auto-crossover ports. The PRV-1059-21 operates at 2.2 watts typical power consumption and measures 3.550″ × 3.775″ (90×96 mm), making it ideal for space-constrained military, aerospace, industrial, and transportation applications.
## Technical Specifications
• **Switching Fabric:** Pause frame-based, true non-blocking
• **Switching Mode:** Store-and-forward
• **Ethernet Ports:** 5 × auto-crossover 10/100 Fast Ethernet ports with auto-negotiation
• **Port Intelligence:** Auto-MDI/MDIX, auto-polarity, bridge loop prevention
• **Chipset:** Marvell 88E6060
• **Frame Buffer Memory:** 512 Kb on-chip port map memory
• **VLAN Support:** Port-based, field-programmable on select models; settings stored in local onboard memory
• **Standards:** IEEE 802.3, IEEE 802.3u
## Key Features
• Dual power input: 16-bit PC/104 bus or 2-pin Molex external connector
• Flexible connectivity via onboard RJ-45 jacks or 4-pin locking Molex headers
• Per-channel LED indicators for data RX/TX and connectivity status
• Operating range: −40°C to +85°C per MIL-STD-810F Methods 501.4, 502.4
• Shock rated 20 Gs, 11 ms duration, 3-axis per MIL-STD-810F Method 516.5
• Vibration qualified per MIL-STD-810F Method 514.5 (jet and helicopter profiles)
• IPC-A-610 Class III workmanship; optional conformal coating
• RoHS 2002/95/CE compliant
• Calculated MTBF: 1,503,217 hours (ground benign, controlled environment @ 40°C)
## Compatibility & Integration
Operates standalone as an independent network switch or integrates with PC/104-bus embedded systems. No processor board required for basic switching operation.
