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3.5" Form Factor
COM Express
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Ethernet Switches
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Managed 26-Port Gigabit Ethernet Switch with 2 10G SFP+ Ports

EPS-24G2X angled
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
IEEE802.1Q 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)
Status LEDs for all ports
Latching connectors and thicker PCB for superior shock/vibration resistance
+5 to 34VDC input
3.5 inch form factor, 4.00”H x 5.75”W / 102 x 146mm
-40°C to +80°C (-40°F to +176°F) operating temperature
MIL-STD-202G shock/vibration compatibility test pending


The EPS-24G2X is a managed Layer 2+ Ethernet switch based on Diamond's EPSM-10GX switch module. The switch implements all features of the EPSM-10GX, including 24 10/100/1000Mbps copper ports and 2 10Gbps SFI ports accessed via SFP+ sockets. The EPS-24G2X is designed in the industry-standard “3.5 inch” form factor. The standard cooling method is via a low-profile heat sink.

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 and 1PPS I/O signals, is available upon request. These features are fully supported in the EPSM-10GX hardware and EPS-24G2X product.

EPS-24G2X is designed to meet the challenges of vehicle environments with its -40/+80°C operating temperature range and its MIL-STD-202G shock/vibration resistance. Latching connectors are used for all I/O for superior resistance to shock and vibration over the traditional low-cost RJ-45 style connectors. The 50% thicker PCB also aids in resistance to vibration. A wide-range input power supply with built-in transient protection provides compatibility with a range of industrial and vehicle power supplies.

Block Diagram

EPS 24G2X Block Diagram

CK-EPS24G2X-01: Cable kit for EPS-24G2X

A cable kit is available to provide convenient access to all features of the board except the 1PPS signal. (1PPS signal requires software upgrade), Cable kit including 6 4-port 10/100/1000 Cat 6 RJ-45 cables, power cable, and serial interface cable.

EPS-24G2X Cable Kit

CK-EPS24G2X-01 includes the following cables:

No. Qty Cable Description Drawing
1 6 6981508 Quad Ethernet Cable Show
2 1 6980512 Cable Power, 2x4 0.1" Latching Show
3 1 6981050 Serial cable Show


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 7 - 34 VDC
Power consumption 20W @ 12V i/p
Form factor COM Express Mini, Type 10
Operating temp -40°C to +80°C (-40°F to +176°F)
Weight 237 grams (8.35 oz.)
RoHS Compliant | Sunnyvale, California USA | +1-650-810-2500 |