INTERPHASE CORPORATION

4811 E/FDDI ADAPTER (DAS MIC CONNECTION)

Card Type              Network Interface Card
NIC Type               FDDI
Maximum Onboard Memory 128KB
Boot ROM               Unidentified
Network Transfer Rate  100Mbps
Topology               Ring, Peer-Peer
Wiring Type            Fiber optic cable
Data Bus               32-bit EISA

[Image]

                                CONNECTIONS

        Function             Label           Function            Label

  Fiber optic connector       CN1       Optical Bypass            CN3
  - MIC (Phy A)                         Switch jack

  Fiber optic connector       CN2
  - MIC (Phy B)

  Note: Type A (Phy A) or Type B (Phy B) connectors are designated by a
  labeled key in the side of the male MIC. CN1 is keyed for an A type
  connector, and CN2 is keyed for a B type connector.

                             DIAGNOSTIC LED(S)

     LED1           LED2         LED3          LED3         Condition
   (Yellow)      (Yellow)      (Green)       (Green)

     Off            Off          Off           On         Power to card

      On            Off          Off           On            Power on
                                                           diagnostics

     Off            Off           On           On           Diagnostics
                                                              passed

     Off         Blinking         On           On           CB Running

     Off            Off        Blinking        On           RC Running

     Off            On         Blinking        On         Ring connection
                                                               good

      On            Off          Off           On        Adapter Failure

  Note: Definitions of "CB" and "RC" are unidentified.

[Image]

                                CONNECTIONS

         Function             Label           Function            Label

  Fiber optic connector -      CN1     6-pin DIN socket            CN5
  MIC (Phy A)                          (Optical Bypass Switch)

  Fiber optic connector -      CN2     6-pin DIN socket            CN6
  MIC (Phy B)                          (Optical Bypass Switch)

  Fiber optic connector -      CN3     Mini-jack (Optical          CN7
  MIC (male) (Phy A)                   Bypass Switch)

  Fiber optic connector -      CN4
  MIC (male) (Phy B)

  Note: Type A (Phy A) or Type B (Phy B) connectors are designated by a
  labeled key in the side of the

  male MIC. CN1 and CN3 are keyed for A type connectors, and CN2 and CN4
  are keyed for B type

  connectors.

  The Dual Attachment Station - MIC version of the 4811 E/FDDI Adapter
  also requires an adapter

  cable (see "DIN to Mini-jack Adapter" in above diagram) in order to
  properly connect the Optical

  Bypass Switch.