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Diamond EPSM-10GX Ultra-Compact Managed 26-Port Gigabit Ethernet Switch Module

Diamond EPSM-10GX Ultra-Compact Managed 26-Port Gigabit Ethernet Switch Module

  • 24 10/100/1000Mbps Gigabit Ethernet ports
  • 2 10G SFI ports for use with SFP+ 10G fiber/copper sockets
  • Integrated 500 MHz MIPS CPU for control of all switch functions
  • Embedded management website provides access to all switch features
  • Support for Status LEDs on carrier board
  • 1Q switch with 4K VLANs and 32K MAC table entries
  • Independent and shared VLAN learning (IVL, SVL)
  • Jumbo frame support
  • Push/pop/translate up to three VLAN tags on ingress and egress
  • Policing with storm control and MC/BC protection
  • RSTP and MSTP support
  • TCAM-based classification and VCAP-II security
  • 1PPS input option for IEEE1588 timing support (requires advanced software package)
  • Two high speed board-to-board mating connectors provide all power and I/O connections+5VDC input
  • COM Express Mini form factor, 2.2″ H x 3.3″W / 55 x 84mm
  • -40°C to +85°C (-40°F to +185°F) operating temperature
  • Tested to MIL-STD-202G shock/vibration levelst


SKU: EPSM-10GX Category:




EPSM-10GX Managed Switch w heat sinkThe Diamond  EPSM-10GX is a managed Layer 2+ Ethernet switch module in an ultra-compact 2.2″ x 3.3″ (55 x 84mm) size offering 24 10/100/1000Mbps copper ports + 2 10Gbps SFI ports. The module is intended to be used on a carrier board. The core Ethernet switching technology is almost fully encapsulated on the module; for many applications, only the “last inch” of magnetics and I/O connectors is required to complete the circuit, enabling easy development of custom form factor Ethernet switch solutions.

The small size, based on the industry-standard COM Express Mini form factor, makes EPSM-10GX a perfect choice for use as a building block for creating custom Ethernet switch solutions in a variety of space-demanding applications, such as drones, ground and underwater vehicles, and robots. EPSM-10GX can also be mounted on a carrier board to create quick Ethernet switching solutions in other industry standard form factors such as VPX. Customers looking for a complete off-the-shelf solution may be interested in our EPS-24G2X, which provides all of the switch’s features in the industry standard 3.5 inch form factor.

The standard Layer 2 software embedded in the module provides a comprehensive set of Ethernet switch features suitable for a wide range of industrial applications. All features are manageable via a GUI web interface accessible over any port, as well as with a command language accessed via a built-in RS-232 port. A more advanced software package, offering Layer 3 routing performance as well as IEEE1588 PTP protocol, is available upon request. These features are fully supported in the EPSM-10GX hardware.

Two cooling accessory options are available: A heat sink provides convection cooling in a low profile, while a heat spreader provides improved conduction cooling for superior high temperature performance in applications where physical contact with the system enclosure is available.

Two high-speed connectors provide all power and data communications between the module and the carrier board. The first connector provides power, 9 10/100/1000 ports, the serial interface, and a serial LED data stream. Applications requiring 9 ports or less may use just this connector. The second connector contains 3 more 10/100/1000 ports, QSGMII signals for an additional 12-port PHY to provide 12 additional 10/100/1000 ports, and the 2 10G SFI ports.

EPSM-10GX is designed to meet the challenges of vehicle environments with its -40/+85°C operating temperature range and its MIL-STD-202G shock/vibration resistance.

Block Diagram

EPSM-10Gx Block Diagram

Development Support

A design guide provides instructions for incorporating the EPSM-10GX into your own circuit. Under NDA a complete carrier board reference schematic and PCB layout are available to provide the starting point for a custom Ethernet switch based on the EPSM-10GX. This design is also available off the shelf as our EPS-24G2X product.


Ethernet Switch 24-port Layer 2/3 switch
Built-in 500MHz MIPS 24KEC microcontroller for configuration and management
Number of Ports 24 10/100/1000Mbps Ethernet ports with non-blocking wire-speed performance
On-board Memory 4Mb packet memory
Shared memory buffer with per-port & CoS memory management
MEF Hierarchical MEF compliant policing & scheduling; MEF E-Lane, E-Line, and E-Tree services
Frame buffer Jumbo frame support at all speeds
Network Management SNMP v1/v2c/v3
Command Line Interface (CLI)
VLAN IEEE 802.1Q VLAN switch with 32K MACs and 4K VLANs
Push/pop up to three VLAN tags
Independent & shared VLAN learning (IVL, SVL)
Multicast IPv4/IPv6 uni & multicast group support
Remarking Dual leaky bucket policers with remarking and statistic
Classifier 8 priorities and 8 CoS queues per port with strict or deficit-weighted round robin scheduling Shaping/policing per queue and per port
Storm Control Policing with storm control and MC/BC protection
Classifier 8 priorities and 8 CoS queues per port with strict or deficit-weighted round robin scheduling
Shaping/policing per queue and per port
Storm Control Policing with storm control and MC/BC protection
Link Aggregation EEE 802.3ad
RSTP Rapid spanning tree protocol (IEEE 802.1W) and MTSP
MIBs Support for WebStax
Power Management ActiPHY and PerfectReach power management; VeriPHY cable diagnostics
Serial Port 1 RS-232 port for host interface
Indicator Lights 24 status LEDs, two per port; 2 general purpose
Standalone Cable Standalone network switch, or in combination with a host computer
Power Input 5VDC
Power consumption 10W@12V (Max)
Form factor COM Express Mini, Type 10
Operating temp -40°C to +85°C (-40°F to +185°F)
Weight 85.2 grams (3.00 oz.)
RoHS Compliant

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available models:
Switch Module
Carrier board design kit (NDA required)
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