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Epsilon™ 8-Port Switch
Managed 8-Port Gigabit Ethernet Switch
Standalone PC/104™ module with wide voltage input and serial management port

Key Features
Eight 10/100/1000Mbps copper-twisted
Ethernet ports with non-blocking wire-speed
performance
PC/104 form factor (3.55 x 3.775 in.)

Highly Advanced Gigabit Ethernet Switch
Epsilon is an 8-port Gigabit Ethernet switch implemented in the compact PC/104
form factor. Epsilon can be used standalone without any connection to a single
board computer, or in conjunction with a host CPU.

Layer 2+ Managed Switch
Epsilon’s advanced Ethernet switch chip includes a built-in microcontroller for
conguration and management. It can be accessed either out-of-band, through the
on-board RS-232 port, or via one of the Ethernet ports.

Wide Input DC/DC Power Supply
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.

Rugged Design
Extended temperature operation of -40°C to +85°C is tested and guaranteed.
Epsilon was designed with harsh applications in mind. Latching connectors are
used to further improve reliability.

Innovative Power Management
Epsilon’s advanced Ethernet switch controller 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 specied length.

Built-in 8051 CPU for conguration
management; RS-232 serial port provides
out-of-band management interface
Can operate autonomously or in
conjunction with host SBC
176KB on-board frame buffer; jumbo frame
support at all speeds
8K MAC addresses and 4K VLANs (IEEE
802.1Q), as well as 8K IP multicast group
support
Programmable multi-layer classier with 4
QoS classes
DSCP remarking for IPv4 and IPv6 frames
Rapid Spanning Tree Protocol
Multicast and broadcast storm control, as
well as ooding control
Full-duplex ow control (IEEE 802.3X) and
half-duplex backpressure, symmetric and
asymmetric
Flexible link aggregation support based on
Layer-2 through Layer-4 information
(IEEE802.3ad)
Multiple protocol support: IEEE 802.1D, IEEE
802.1w, IEEE 802.1s, and IEEE 802.1X
Extremely rugged temperature range of
-40°C to +85°C with heat spreader or
-40°C to +71°C with heat sink

Software Support
Epsilon is loaded with all required rmware, enabling its immediate operation
without any development effort. The included web interface provides an intuitive
GUI for use in conguring and managing switch functionality.
www.diamondsystems.com | Diamond Systems Corporation | Mountain View, California USA | +1-650-810-2500