CABLETRON SYSTEMS, INC.

FOT-DF24

Device Type            Redundant transceiver
NIC Type               Ethernet
Maximum Onboard Memory Unidentified
Boot ROM               Not available
Network Transfer Rate  10Mbps
Topology               Star
Wiring Type            Fiber optic cable
Data Bus               External

[Image]

                                CONNECTIONS

         Function            Label            Function            Label

  AUI transceiver via         CN1      Fiber optic connector       TX1
  DB-15                                (ST) - transmit (port
                                       1)

  Fiber optic connector       RX1      Fiber optic connector       TX2
  (ST) - receive (port 1)              (ST) - transmit (port
                                       2)

  Fiber optic connector       RX2
  (ST) - receive (port 2)

                        USER CONFIGURABLE SETTINGS

                   Function                       Label       Position

  »   SQE test function disabled                   SW1           Off

      SQE test function enabled                    SW1           On

      Waits for data for approximately 2sec        SW2           MIN
      before switching to redundant port

      Waits for data for approximately 10sec       SW2           MAX
      before switching to redundant port

  Note: SW2 should be set to MIN when attached to a high-activity
  network. The MAX setting should be used with a low-activity network.

                             DIAGNOSTIC LED(S)

   LED        Color          Status                  Condition

   PWR        Green            On                   Power is on

   PWR        Green           Off                  Power is off

   SQE        Yellow           On            Signal Quality Error test
                                                function is enabled

   SQE        Yellow          Off            Signal Quality Error test
                                               function is disabled

   XMT        Green         Blinking         Data is being transmitted

   XMT        Green           Off          Data is not being transmitted

   RCV        Yellow        Blinking          Data is being received

   RCV        Yellow          Off           Data is not being received

   CLN         Red          Blinking       Collision detected on network

   CLN         Red            Off             No collision detected on
                                                      network

   LNK1       Green            On         Port 1 Fiber optic link is good

   LNK1       Green           Off         Port Fiber optic link is broken

   ACT1       Yellow           On            Port 1 is handling network
                                                      traffic

   ACT1       Yellow          Off          Port 1 is not handling network
                                                      traffic

   ACT1       Yellow        Blinking      Port 1 is idle. Time out is set
                             (slow)                to 10 seconds

   ACT1       Yellow        Blinking      Port 1 is idle. Time out is set
                             (fast)                to 2 seconds

   LNK2       Green            On         Port 2 Fiber optic link is good

   LNK2       Green           Off            Port 2 Fiber optic link is
                                                      broken

   ACT2       Yellow           On            Port 2 is handling network
                                                      traffic

   ACT2       Yellow          Off          Port 2 is not handling network
                                                      traffic

   ACT2       Yellow        Blinking      Port 2 is idle. Time out is set
                             (slow)                to 10 seconds

   ACT2       Yellow        Blinking      Port 2 is idle. Time out is set
                             (fast)                to 2 seconds