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F211 - Quad Fast Ethernet Interface Board

3U CompactPCI

The F211 is a single Eurocard CompactPCI networking controller with four Fast Ethernet channels.

  • F211 Product ImageConfiguration example: F211 with four RJ45 connectors
  • F211 Product ImageConfiguration example: F211 with two D-Sub connectors
  • F211 Product Image
  • F211 Product Image

Main Features

  • 4 HP 32-bit/33-MHz CompactPCI
  • 4 full-duplex or half-duplex channels
  • 10BASE-T and 100BASE-TX physical layer
  • Fully integrated to comply with IEEE802.3u
  • 1500 V isolation voltage
  • -40 °C to +85 °C
F211 Product Image

Technical Data

Ethernet Interfaces
  • Four 10/100Base-TX interfaces
  • Four Micrel KSZ8841 controllers
  • IEEE802.3x support
    • Full-duplex flow control
    • Half-duplex back pressure collision flow control
  • Internal 8KB RX/TX FIFO buffers
  • Auto-negotiation and auto MDIX crossover
  • LinkMD cable diagnostics to determine cable length, cable faults and distance to fault
  • Media Access Control (MAC) addresses stored in onboard serial EEPROMs
  • 4x2 status LEDs to signal link status, activity, speed and collision
Front Connections
Four standard 8-pin RJ45 receptacle connectors
CompactPCI Bus
  • Compliance with CompactPCI Core Specification PICMG 2.0 R3.0
  • Peripheral slot
  • 32-bit/33-MHz PCI-to-PCI bridge
  • V(I/O): +3.3V or +5V (Universal Board)
Electrical Specifications
  • Isolation voltage: 1000V between Ethernet links and 1500V between Ethernet links and shield or ground
  • Supply voltage/power consumption:
    • +3.3V (-3%/+5%), 1A max.
  • MTBF: 875,481h @ 40°C according to IEC/TR 62380 (RDF 2000)
Mechanical Specifications
  • Dimensions: conforming to CompactPCI specification for 3U boards
  • Weight: 115g (standard version)
Environmental Specifications
  • Temperature range (operation):
    • -40..+85°C
    • Airflow: min. 10m³/h
  • Temperature range (storage): -40..+85°C
  • Relative humidity (operation): max. 95% non-condensing
  • Relative humidity (storage): max. 95% non-condensing
  • Altitude: -300m to + 3,000m
  • Shock: 15g/11ms
  • Bump: 10g/16ms
  • Vibration (sinusoidal): 2g/10..150Hz
PCB manufactured with a flammability rating of 94V-0 by UL recognized manufacturers
Tested according to EN 55022 (radio disturbance), IEC 61000-4-2 (ESD) and IEC 61000-4-4 (burst)
Software Support
  • Drivers for Linux and Windows from Micrel
  • Driver for QNX from QNX
  • For more information on supported operating system versions and drivers see Software.


Front Connection
  • 4 Ethernet channels on 4 D-Sub connectors, 2-slot front panel (8 HP)
  • 4 Ethernet channels on 2 D-Sub connectors (shared), 1-slot front panel (4 HP)
  • 4 Ethernet channels on 4 M12 receptacle connectors, 2-slot front panel (8 HP)
Cooling Concept
Also available with conduction cooling in MEN CCA frame
Some of these options may only be available for large volumes.
Please ask our sales staff for more information.

Ordering Information

Standard F211 Models

4 100Base-T Ethernet interfaces, 4 RJ45 connectors at front, -40..+85°C with qualified components



For a Linux driver package supporting the Micrel KSZ8841 Ethernet controller, please refer to www.micrel.com/_PDF/Ethernet/sw_designkit/8841P/ks884x-linux-20090601.bz2. We highly recommend a kernel newer than 2.6.32.


Windows Ethernet driver for F211/F302 (Micrel KSZ8841 MAC) with option to disable hardware checksumming


For a QNX 6.3.0SP3 and QNX 6.3.2 driver package supporting the Micrel KSZ8841 Ethernet controller, please refer to the latest QNX network driver update: www.qnx.com/download/feature.html?programid=17094. The devn-micrel8841.so driver integrated there supports the F211 Ethernet controller.
Starting from QNX 6.4 this driver is directly included in the distribution.

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