DIGITAL LINK CORPORATION

SOLO T1 CSU

Card Type                 CSU
NIC Type                  T1
Chip Set                  Unidentified
I/O Options               AC power connector, DC power connector, DTE port
                          via 15-pin connector,

                          serial port (RS-232), network interface via
                          15-pin connector

                          monitor jack - transmit, monitor jack - receive
Wiring Type               RJ-48 shielded twisted pair
Maximum Data Rate         9600bps
Data Bus                  External

[Image]

                                CONNECTIONS

         Function            Label            Function            Label

  AC power connector          CN1      Network interface via       CN5
                                       15-pin connector

  DC power connector          CN2      Monitor jack -              CN6
                                       transmit

  Serial port                 CN3      Monitor jack - receive      CN7

  DTE port via 15-pin         CN4      Fuse                        F1
  connector

                        USER CONFIGURABLE SETTINGS

                   Setting                       Label        Position

  »   Network framing ESF enabled                S1/1            Off

      Network framing D4 enabled                 S1/1            On

  »   Line code B8ZS enabled                     S1/2            Off

      Line code AMI enabled                      S1/2            On

  »   Auxiliary framing D4 enabled               S1/5            Off

      Auxiliary framing ESF enabled              S1/5            On

  »   Auxiliary line code AMI enabled            S1/6            Off

  »   Auxiliary line code B8ZS enabled           S1/6            On

  »   Factory configured - do not alter          S2/1            Off

  »   Factory configured - do not alter          S2/2            Off

  »   Serial port stop bits (2)                  S2/5            Off

      Serial port stop bits (1)                  S2/5            On

  »   Word length 8-bit enabled                  S2/11           Off

      Word length 7-bit enabled                  S2/11           On

  »   DIP switch configuration enabled           S2/12           Off

      Terminal configuration enabled             S2/12           On

  Note: Off corresponds to the 1 or closed position.

                            SOUND CONFIGURATION

          Net build                  SW1/3                  SW1/4

  »            0dB                    Off                    Off

             -7.5dB                   Off                     On

              -15dB                    On                    Off

          AUXILARY LINE LENGTH

   Setting     SW1/7    SW1/8    SW1/9

   0-133ft      Off      Off      Off

  133-266ft     Off      Off      On

  266-388ft     On       On       Off

  388-533ft     On       Off      Off

  533-655ft     On       On       On

               TIMING SOURCE

   Setting      SW2/3        SW2/4

   Network       Off          Off

  Internal       Off          On

  Auxiliary       On          Off

                             SERIAL PORT RATE

          Setting               SW2/6           SW2/7           SW2/8

            1200bps              Off              On             On

            2400bps              Off              On             Off

            4800bps              Off             Off             On

  »         9600bps              Off             Off             Off

            14.4Kbps              On              On             On

            19.2Kbps              On              On             Off

            28.8Kbps              On             Off             On

            38.4Kbps              On             Off             Off

       SERIAL PORT PARITY

  Setting    SW2/9     SW2/10

   None       Off        Off

    Odd       Off        On

   Even        On        Off

                             DIAGNOSTIC LED(S)

    LED         Color         Status                 Condition

    PWR         Green           On                  Power is on

    PWR          Red            On              Alarm is activated

    PWR           Yellow        On         CSU is on and running a test

    PWR            None         Off                Power is off

    NET         Green           On         CSU is receiving a signal from
                                                      network

    NET          Red            On        Loss of frame condition exists

            NET  Red/Green   Blinking      CSU is detecting BPV, CRC, or
                                           OOF error signal from network

    NET           Yellow        On          Yellow or blue alarm signal
                                               received from network

    NET            None         Off        CSU is not receiving a signal
                                                   from network

   NLBK           Yellow        On         Network loopback test running

   NLBK           Yellow        Off          Network loopback test not
                                                      running

    ACK           Yellow        On            Remote loop (up or down)
                                          detected - Press buttons to run
                                          (up) or (down) remote loop test

    ACK           Yellow        Off        Remote loop test not running

    DTE           Yellow        On         DTE loopback running: - Press
                                          button to DTE loopback run test

    DTE           Yellow        Off          DTE loopback not running

    AUX           Green         On          DTE port operating normally

    AUX            Red          On           Loss of frame on DTE port

    AUX          Red/Green   Blinking      CSU is detecting BPV, CRC, or
                                           OOF error signal on DTE port

    AUX           Yellow        On          Yellow or blue alarm signal
                                               received on DTE port

    AUX            None         Off         Loss of signal on DTE port