UK 
Diamond Systems EPSM-10GX4-L3 Rugged Layer 3 Ethernet Switch Module with 24 Gigabit and 4x 10GbE Ports
Extended TempWide TempEPSM-10GX4-L3 Overview
When a vehicle carries separate networks for mission systems, sensors and crew devices, the switch has to route between them. The EPSM-10GX4-L3 is the Layer 3 build in the Diamond Systems EPSM-10GX4 series: a small Ethernet switch module that holds the switching core, packet memory and routing software, so for many designs the carrier only needs magnetics, I/O connectors and an input voltage regulator.
The module provides 24 10/100/1000 copper ports with non-blocking wire-speed performance, 12 from PHYs on the module and 12 through QSGMII to a 12-port PHY on the carrier, plus four 10G SFI ports for SFP+ fibre or copper transceivers. Layer 3 software adds hardware- and software-based IPv6 static routing, RFC 2328 OSPFv2 dynamic routing, RADIUS accounting and port and queue policers. Management runs through a web GUI over any port, a command-line interface over RS-232 and SNMP v1/v2c/v3.
The Layer 2+ base covers 8K MAC addresses, 4K VLANs and jumbo frames, plus RSTP and MSTP, IEEE 802.3ad link aggregation on Layer 2 to Layer 4 information, multicast and broadcast storm control, IEEE 802.1X and 8 priorities with 8 QoS queues per port; our guide to Layer 2 and Layer 3 switches explains when routing helps. Two 120-pin Samtec ERF5 connectors carry all power and data to the carrier; the first handles power, nine ports and the RS-232 interface, so designs of nine ports or fewer can use it alone, and the second adds the remaining copper ports, the QSGMII lanes and the four 10G ports. The EPSM-10GX4 is the Layer 2+ build, and the EPSM-10GX-L3 runs the same software with two 10G ports.
The module takes 5 V DC ±5% from the carrier and draws up to 20 W with all ports active. It runs from -40 to +85 °C with Diamond’s heat sink or heat spreader, the spreader suiting enclosures that can take heat through a wall. MIL-STD-202G shock and vibration resistance, as Diamond states it, suits vehicle use. Diamond provides a carrier design guide, development kits and a custom carrier board service.
EPSM-10GX4-L3 Specifications
| Overview | |
|---|---|
| Brand & Model | Diamond Systems EPSM-10GX4-L3 |
| Features | Compact Embedded Fanless Industrial Managed Ethernet Switch Rugged |
| Networking | |
| Switching Layer | Layer 3 |
| Switch Type | Managed |
| Ethernet Ports | 24x 10/100/1000 BASE-TX [Board] |
| Number of Ethernet Ports | 24x Ethernet Ports |
| Number of Fiber Ports | 4x 10G [SFI] |
| Networking Standards | IEEE 802.1D Spanning Tree Protocol IEEE 802.1Q VLAN IEEE 802.1s Multiple Spanning Tree Protocol IEEE 802.1w Rapid Spanning Tree Protocol IEEE 802.1X Port-Based Network Access Control IEEE 802.3 10BaseTx Ethernet IEEE 802.3ab 1000BaseTx Gigabit Ethernet IEEE 802.3ad Link Aggregation IEEE 802.3ae 10 Gigabit Fiber IEEE 802.3u 100BaseTx Fast Ethernet |
| Power | |
| Power Input | 5V DC [Board] |
| Environmental Conditions | |
| Operating Temperature | -40°C to 85°C [-40°F to 185°F] |
| Certification | RoHS |
| Mechanical Properties | |
| Weight | 85 g (3.0 oz) |
| Dimensions | 84mm x 55mm (3.31" x 2.17") |
- EPSM-10GX4-L3 Datasheet Download
| Number of Ports | 24 10/100/1000Mbps Ethernet ports with non-blocking wire-speed performance |
| 4 10G SFI ports for fibre or copper transceivers | |
| Magnetics and 10G transceivers required on carrier board | |
| Implementation | 12 PHYs integrated on main board; QSGMII signals for additional 12-port PHY on carrier board |
| On-board Memory | 4MB packet memory |
| Network Management | SNMP v1/v2c/v3; Web GUI and command line interface (CLI) |
| Power Management | ActiPHY and PerfectReach power management reduce power for shorter cable lengths and shut down power to disconnected ports |
| Serial Port | 1 serial port for host interface; RS-232 transceiver required on carrier board |
| Indicator lights | Serial data stream provided for 2 LEDs per port; decoder logic required on carrier board |
| Form Factor | 55x84mm / 2.17×3.31” (Same as COM Express Type 10) |
| Interconnect | Dual Samtec ERF5 series connectors, 120 pins each, 10mm board to board spacing |
| Input voltage | 5VDC +/-5% |
| Power consumption | 20W max, all ports active |
| Operating temperature | -40 to +85°C with DSC-provided heat sink or heat spreader |
| Cooling | Heat sink, 55x84mm, 16.6mm height |
| Heat spreader, 55x104mm, 7.6mm height | |
| Weight | 85G / 3.0 oz |
| Rohs | Compliant |
Official Diamond Systems UK Distributor
Things Embedded is an official Diamond Systems UK distributor, supplying the EPSM-10GX4-L3 for UK defence and unmanned vehicle programmes. Within the Diamond range the EPSM-10GX4-1588 adds IEEE-1588 PTP readiness to the same Layer 3 software, and the EPS-24G4X puts this switch on a complete 3.5 inch board.
With routing on a single small module, the EPSM-10GX4-L3 sits among our Ethernet switch modules, our embedded Ethernet switches and our wider range of network switches. Where a custom carrier must route between subnets with four 10G uplinks, this is the build to specify.
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