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Diamond Point International

Diamond Systems Epsilon-8000 - PC/104 Format 8 Port Gigabit Ethernet Switch

Managed 8-Port Gigabit Ethernet Switch with Wide Voltage Input


Note: Not for new designs - the replacement is Epsilon 8100, which is a 100% compatible replacement for most customers.

Epsilon (also called Epsilon-8000) is a managed Layer 2+ Ethernet switch module offering eight 10/100/1000Mbps copper twisted pair ports on a PC/104 form-factor board.

Epsilon can be used standalone, without any connection to a single board computer, or in conjunction with a host CPU. The module's built-in microcontroller handles configuration and management. On-board memory holds dual application images, boot code, MAC addresses, and other parameters, and can also be used for program execution.

An RS-232 serial port enables communication between the module's on-board management microcontroller and a host processor for out-of-band management. Epsilon's built-in microcontroller is also accessible via a web management interface over one of the Ethernet ports. This port is then shared for simultaneous web management and normal usage.

Input power can be provided through the built-in, wide-range +7-36VDC power supply, enabling operation using industrial power sources. Alternatively, Epsilon can be powered from a +5VDC source.

To support the temperature extremes of fixed and mobile applications in both indoor and outdoor environments, the module supports fanless operation over -40°C to +85°C.

Epsilon's advanced Ethernet switch board includes two innovative features that enable automatic power savings. The switch can detect unused Ethernet ports on network devices and power them down or place them in stand-by mode. Additionally, the switch actively adjusts the power level needed based on cable length, saving energy on links shorter than the 100m maximum specified length.

As a special order option, Epsilon can be built with a full PC/104 stackthrough bus interface, allowing it to be integrated into any PC/104 stack. However, the module does not interface to the PC/104 bus and does not require the bus for its operation.

Epsilon is loaded with all required firmware, enabling its immediate operation without any development effort. The included web interface provides an intuitive GUI for use in configuring and managing switch functionality.

Thermal Solutions

Epsilon is available with two different thermal solutions; a heatspreader option that supports fanless operation over -40°C to +85°C, and a heatsink option that supports fanless operation over -40°C to +71°C.

Epsilon thermal solutions

Cable Kit

The Epsilon cable kit, C-EPS8000-KIT, includes cables for Epsilon's input and output.

Epsilon-8100 cable kit

  • 1 8x 6981052 Ethernet cable 
  • 2 1x 6981051 Power cable 
  • 3 1x 6981050 Serial cable


Main Specification

Function8-port, Layer 2+ switch
Built-in 8051 microcontroller for configuration and management

On-board Memory 2MB flash for boot and application code
• 128KB SRAM

Frame Buffer
• 176KB on-board frame buffer
• Jumbo frame support at all speeds

• DSCP remarking for both IPv4 and IPv6 frames
• Rapid Spanning Tree Protocol IEEE 802.1W

Rapid Spanning Tree Protocol
• IEEE 802.1W

Classifier: Programmable multi-layer classifier with 4 QoS classes

Standalone Capable: Standalone network switch, or in combination with a PC/104 embedded computer
Interface(s)8 10/100/1000Mbps Ethernet ports
Non-blocking wire-speed performance
Controller(s)Vitess VSC7398 Ethernet Switch controller
Connection(s)1 RS-232 port for host interface
16 status LEDs, two per port
2 general purpose
8 latching headers for each Ethernet port


ExpansionN/A (PCB has PC/104 connector footprint - can be added as a factory option if required)
ElectricalChoice of:
• +7 to +36V DC/DC power supply
• +5VDC input from external source, or optionally the PC/104 bus
5.4W typical at +5VDC with all 8 ports active, approx. 0.26W less for each inactive port
MechanicalPC/104 3.55" x 3.775" (90mm x 96mm)
15.7mm height with heatsink
Conformal CoatingOn request
SoftwareThe switch is ready to plug into your application without any driver installation or firmware upgrades
A web interface and a CLI provide an intuitive GUI for configuring and managing the switch
TemperatureTemperature range (operation, heatspreader version): -40 to +85ºC
Temperature range (operation, heatsink version): -40 to +71ºC
Temperature range (storage): -40°C to +85°C (-40°F to +185°F)
Humidity(operation) 10% - 90% relative humidity (non-condensing)
(storage) 5% - 95% relative humidity (non-condensing)
Weight2.4oz (68g) without heatspreader
5.8oz (164.4g) with heatspreader
MTBF122,656 hours
Warranty1 Year
Availability:Last time buy date: 15 May 2015

Ordering Details

Managed 8-Port Gigabit Ethernet Switch PC/104 Module, heatspreader, -40°C to +85°C

Managed 8-Port Gigabit Ethernet Switch PC/104 Module, heatsink, -40°C to +71°C
Epsilon Cable Kit: Ethernet (8), power and serial cables

Epsilon daisy-chain cable (for connecting Epsilons together to create a larger switch)