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VL-EPM-E2PC/104-Plus Ethernet Module

PC/104-Plus Ethernet Module

PC/104-Plus expansion module with dual 10/100 Ethernet ports. Features industrial temperature operation and extensive ruggedization.


  • PC/104-Plus Form Factor
    Industry standard form factor stacks with compatible CPUs and expansion modules.
  • Network Support
    Two on-board 10/100 Ethernet ports.
  • Industrial Temperature
    -40 to +85C operation for harsh environments.
  • MIL-STD-202G
    Qualified for high shock/vibration environments.
  • Activity Indicators
    On-board status LEDs with support for external indicators.

Software Expertise: Reference & Software Expertise

Embedded PC/104+ ModuleRoHS-compliant



The VL-EPM-E2 is an embedded PC/104-Plus format expansion module featuring high-performance networking capabilities. With two autodetect 10BaseT / 100BaseTX Ethernet ports, industrial temperature operation, and extensive ruggedization, the VL-EPM-E2 is an ideal expansion solution for embedded applications in harsh industrial, energy, defense/aerospace, medical, and robotics environments.

Like all VersaLogic products, the VL-EPM-E2 is designed to support OEM applications where high reliability and long-term availability are required. From application design-in support, to its 5+ year production life guarantee, the VL-EPM-E2 provides a durable embedded computer solution with an excellent cost of ownership. The VL-EPM-E2 is manufactured and tested to the highest quality standards and is fully RoHS compliant. Customization is available, even in low OEM quantities.


The VL-EPM-E2 is based on the industry standard PC/104-Plus form factor, which provides for simplified plug-in expansion with other PC/104-Plus SBC and expansion modules.

The VL-EPM-E2 is available with one or two on-board 10/100 Ethernet ports. The Ethernet controller features auto-negotiation for simplified configuration and each Ethernet port is independently configurable as a separate subnet. The board is available with either standard RJ45 output connectors, or with latching header connectors for high shock or vibration environments. On-board LEDs provide Link/Activity and Speed status for each Ethernet port with an additional header for external LED support.

The VL-EPM-E2 is designed and tested for operation over the full industrial temperature range (-40 to +85C) and meets MIL-STD-202G specifications for mechanical shock and vibration.

Software drivers are available for a wide variety of operating systems to provide a complete high-performance networking solution.

VersaLogic products are designed for use by OEMs working in a variety of market applications: Aerospace, Defense, Energy, Industrial, Security, Medical, Military, Robotics, and Transportation. Anywhere that the need for superb quality and high-performance embedded computing exists, applications include: automation, avionics, gateway, in-vehicle, monitoring, simulation, and vision.

VersaLogic delivers extremely reliable standard and customized embedded computers backed with unsurpassed service and the highest availability in the market. VersaLogic exists to exceed customers' product, service, support and delivery needs - whenever and wherever the need arises.


General Board Size PC/104-Plus standard: 90 mm x 96 mm (3.55" x 3.78")
Power Requirements * +5V @ 0.52A (2.6W) max.
System Reset Reset via PCI interface
Stackable Bus PC/104-Plus: PCI, ISA (pass-through)
Manufacturing Standards IPC-A-610 Class 2 compliant
RoHS Compliant
Environmental Operating Temperature -40 to +85C
Storage Temperature -40 to +85C
Airflow Requirements Free air from -40 to +85C
Thermal Shock 5C/min. over operating temperature
Humidity Less than 95%, noncondensing
Vibration, Sinusoidal Sweep MIL-STD-202G, Method 204, Modified Condition A: 2g constant acceleration from 5 to 500 Hz, 20 minutes per axis
Vibration, Random MIL-STD-202G, Method 214A, Condition A: 5.35g rms, 5 minutes per axis
Mechanical Shock MIL-STD-202G, Method 213B, Condition G: 20g half-sine, 11 ms duration per axis
Network Interface Controller Micrel KSZ8841-PMQLI
Ethernet Up to two autodetect 10BaseT / 100BaseTX ports
Configuration EEPROM (1K) for each Ethernet interface (MAC address, default configuration). Each port independently configurable as separate subnet.
Activity Indicators On-board Link/Activity and Speed LED for each Ethernet port. Header for external LEDs.
Software Operating Systems Compatible with most x86 operating systems, including Windows, Windows Embedded, Linux, VxWorks, and QNX
* Power specifications represent operation at +25C with +5V supply running Windows XP with Ethernet
TVS protected (enhanced ESD protection)
Derate -1.1C per 305m (1,000 ft.) above 2,300m (7,500 ft.)
Specifications are subject to change without notification. All trademarks are the property of their respective owners.

Software Support Packages

Windows Win 7
  • VL-EPM-E2 Driver -
    Windows XP Driver (also verified on Windows 7). The Linux driver for this component is included in Linux kernel 2.6.34 and up.

Windows Win XP
  • VL-EPM-E2 Driver -
    Windows XP Driver (also verified on Windows 7). The Linux driver for this component is included in Linux kernel 2.6.34 and up.

Windows Embedded Win Std 7
  • VL-EPM-E2 Driver -
    Windows XP Driver (also verified on Windows 7). The Linux driver for this component is included in Linux kernel 2.6.34 and up.

Windows Embedded Win XPe
  • VL-EPM-E2 Driver -
    Windows XP Driver (also verified on Windows 7). The Linux driver for this component is included in Linux kernel 2.6.34 and up.

Operating System Compatibility

Win 10 - Meets Specifications
Win 8 - Meets Specifications
Win 7 - Tested & Compatible
Win XP - Tested & Compatible
Win Std 7 - Tested & Compatible
Win XPe - Tested & Compatible
Win CE - Meets Specifications
Debian - Tested & Compatible
Ubuntu - Meets Specifications
DOS - Meets Specifications


Part Number Description Photo
VL-CBR-0804Ethernet adapter cable, latching, 12" , (-20 to +75C)
VL-HDW-105Standoff package, 0.6", Metric thread
VL-HDW-106Standoff package, 0.6", English thread
VL-HDW-203PC/104 extractor tool (metal)

Ordering Information

Model Ethernet Ports Connector(s) Conformal Coating Digi-Key logo
VL-EPM-E2A 1 RJ45 None
VL-EPM-E2B 2 RJ45 None
VL-EPM-E2D 2 Latching header None
* Special Order Product. Contact VersaLogic Sales for minimum order quantities and lead time.

Export Information

Description Value
SCHEDULE B:8517.62.0050