Stand-alone Ethernet Transceiver
10Base-5 AUI to 10Base-T RJ-45

  • E-TBT-MC05-side-back
  • E-TBT-MC05-Side-768x768
  • E-TBT-MC05-front
  • E-TBT-MC05-back

The E-TBT-MC05 is an Attachment Unit Interface (AUI) transceiver that provides a method for connecting a workstation, or any other device with an AUI port, to twisted pair cabling in a 10Base-T network. Devices with AUI ports could include: servers, hubs, bridges and routers. The E-TBT-MC05 transceiver allows twisted pair, UTP or STP, to be connected to these AUI ports.


Related Products

    E-TBT-MC05 Overview


    • Provides a complete interface of the AUI to Ethernet UTP cable
    • Supports data transfer rate of 10 Mbps
    • CSMA/CD access mechanism
    • Capable of driving the UTP cable segment up to 100 m (328 ft.) without the use of a repeater
    • Selectable Link test and SQE test functions
    • AUI locking post design allows the E-TBT-MC05 to directly attach to a host’s AUI connector
    • Can be used with or without an AUI cable
    • LED indicators for network monitoring and diagnosing
    • The RJ-45 port will automatically detect and reverse the polarity on the receive pair, if needed

    E-TBT-MC05 Tech Specs


      • IEEE 802.3
      • 10Base-T

      Data Rate

      • 10 Mbps


      • SW1: SQE Test: UP is enabled
      • SW2: Link Test: UP is enabled
      • SW3: Half or Full-Duplex: UP is for Half, Down is for Full

      Status LEDs

      • COL: Blinks when detecting collisions
      • STAT: Solid Green: UTP Link established; Blinks Green: No UTP Link; 4-Blink Pattern: Polarity reversal detected on UTP cable
      • TX: Blinks when transmitting data on the RJ-45
      • RX: Blinks when receiving data on the RJ-45


      • Width: 3.1” [79 mm]
      • Depth: 0.8” [20 mm]
      • Height: 1.7” [43 mm]

      Power Consumption

      Power Supply

      • No external power required

      Power Input


      • Operating: 0°C to 50°C
      • Humidity: 5% to 95% (non-condensing)
      • Altitude: 0 – 10,000 ft.


      • 1 lb. [0.45 kg]


      • 125,126 hours (Bellcore)


      • FCC & CISPR Class A, CE Mark


      • Lifetime

    E-TBT-MC05 Resources

    Application Spotlights
    Press Releases
    Case Studies

    E-TBT-MC05 Downloads

    Note: Some Documentation may have Transition Networks named or pictured. Transition Networks was acquired by Lantronix in August 2021. Learn more about the acquisition here.

    E-TBT-MC05 Part Numbers

    E-TBT-MC05 E-TBT-MC05

    10Base-5 (AUI) dB-15 male [50 m/164 ft.] to 10Base-T (RJ-45) [100 m/328 ft.

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