The Diamond Systems EPS-8000-XT Epsilon is a managed Layer 2+ 8-port Gigabit Ethernet switch engineered for industrial environments requiring reliability in harsh operating conditions. This PC/104 form factor device (3.55 x 3.775 inches) delivers non-blocking wire-speed switching across eight 10/100/1000 Mbps ports with full jumbo frame support. It operates autonomously via built-in 8051 microcontroller management or integrates with host SBCs through in-band web interface and out-of-band RS-232 serial port control.
## Technical Specifications
**Switching Architecture**
• Layer 2+ managed switch with 8K MAC address capacity
• 176 KB onboard frame buffer
• Support for 4K IEEE 802.1Q VLANs and 8K IP multicast groups
• Non-blocking wire-speed performance on all ports
**Interfaces & Connectivity**
• 8 × 10/100/1000 Mbps Gigabit Ethernet ports with latching connectors
• 16 status LEDs (2 per port)
• 1 × RS-232 serial management port
• Jumbo frame support at all speeds
**Quality of Service & Traffic Management**
• Programmable 4-class QoS classifier with multi-layer capability
• IEEE 802.3ad flexible link aggregation (Layer 2–4 basis)
• Full-duplex flow control (IEEE 802.3X) and half-duplex backpressure
• Multicast/broadcast storm control and flooding control
• DSCP remarking for IPv4 and IPv6
**Power & Thermal**
• Input: +7–36 VDC wide-range or +5 VDC source
• Automatic port power-down for unused interfaces
• Power adjustment based on cable length
• Heat spreader cooling
• 50% thicker PCB for vibration protection
**Environmental**
• Operating temperature: −40°C to +85°C
• RoHS compliant
**Memory**
• 2 MB Flash (boot and application code)
• 128 KB SRAM
• 8 KB EEPROM
## Key Features
• Rapid Spanning Tree Protocol (IEEE 802.1w) and IEEE 802.1s support
• IEEE 802.1X authentication capability
• Dual power input options for redundancy and flexible sourcing
• Extended temperature operation for extreme-environment deployment
• Compact PC/104 packaging for space-constrained integration
## Typical Applications
Industrial control systems, vehicle integration platforms, remote monitoring stations, and embedded network infrastructure requiring managed switching in temperature-extreme or vibration-intensive settings.
## Compatibility & Integration
The EPS-8000-XT integrates into PC/104-based stacks or operates standalone with independent power. Management occurs via standard web browser or serial terminal, enabling deployment in systems without dedicated host controllers.
