BAY NETWORKS, INC.

354-ST

Device Type            Fiber Optic Extender/Repeater
NIC Type               Token Ring
Maximum Onboard Memory Unidentified
Boot ROM               Not available
Network Transfer Rate  4/16Mbps
Topology               Ring
Wiring Type            Fiber optic cable
Data Bus               External

[Image]

                                CONNECTIONS

        Function            Label            Function            Label

  IEEE 802.5 data            CN1       Fiber optic connector       TX
  connector (STP)                      (ST) - transmit

  Fiber optic connector       RX
  (ST) - receive

                        USER CONFIGURABLE SETTINGS

                  Function                    Label         Position

  »   Factory configured - do not alter       SW1/1       Unidentified

      354-ST used as fiber optic lobe         SW1/2            On
      extender

      354-ST used as trunk repeater           SW1/2            Off

      DTE/Ring in enabled                     SW1/3            On

      HOST/Ring out enabled                   SW1/3            Off

      Eql on (354-ST is connected to a        SW1/4            On
      3502A Host Module)

      Eql off (354-ST is connected to a       SW1/4            Off
      3505 Host Module or Token Ring
      station)

      Attached device is not a SynOptics      SW1/5            On
      concentrator

      Attached device is a SynOptics          SW1/5            Off
      concentrator

      4Mbps mode enabled                      SW1/6            On

      16Mbps mode enabled                     SW1/6            Off

            Note: A Synoptics fiber optic repeater module may only be
            connected when the device is configured as a trunk media
            converter. If the device is configured as a lobe extender,
            SW1/5 is not used.

                        LOBE UNIT DIAGNOSTIC LED(S)

    LED        Color      Status                  Condition

    LED1       Green        On             354-ST is in 4mbps mode

    LED1       Green       Off         354-ST is in not in 4mbps mode

    LED2       Green        On            354-ST is in 16mbps mode

    LED2       Green       Off         354-ST is in not in 16mbps mode

    LED3       Green        On      Unit has been inserted into the ring

    LED3       Green       Off       Unit has not been inserted into the
                                                    ring

    LED4       Green        On       Phantom detected from remote 354-ST.
                                          Fiber optic link is good

    LED4       Green       Off         Phantom not detected from remote
                                     354-ST. Fiber optic link is broken

                       TRUNK UNIT DIAGNOSTIC LED(S)

    LED       Color       Status                  Condition

   LED1       Green         On             354-ST is in 4mbps mode

   LED1       Green         Off         354-ST is in not in 4mbps mode

   LED2       Green         On             354-ST is in 16mbps mode

   LED2       Green         Off        354-ST is in not in 16mbps mode

   LED3       Green         On         Phantom signal is being received
                                            from Synoptics module

   LED3       Green         Off      Phantom signal is not being received
                                            from Synoptics module

   LED4       Green         On        Phantom detected from remote 354-ST
                                             or Synoptics module.

                                           Fiber optic link is good

   LED4       Green         Off        Phantom not detected from remote
                                       354-ST or Synoptics module. Fiber
                                             optic link is broken