
DIGITAL LINK CORPORATION

T1 DSU/CSU DL080

Card Type                  T1 DSU/CSU
Chip Set                   Unidentified
I/O Options                AC power connector, DC power connector, serial
                           port,

                           data port via V.35 connector, network interface
                           via 15-pin connector,

                           injection jack, monitor jack
T1 Transfer Rate           1.536Mbps
T1 Protocol                AMI, B8ZS
Frame type                 D4, ESF
Data Bus                   External

[Image]

                                CONNECTIONS

         Function            Label            Function             Label

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

  DC power connector          CN2      Injection jack - send        CN6

  Data port via V.35          CN3      Monitor jack - receive       CN7
  connector

  Serial port                 CN4      Fuse                         F1

                        USER CONFIGURABLE SETTINGS

                   Setting                       Label        Position

     Contiguous bandwidth allocation            S1/6            Off

      Alternate bandwidth allocation             S1/6            On

     DTE clock set at +SCT                      S1/7            Off

      DTE clock set at SCTE                      S1/7            On

     ESF network framing enabled                S2/1            Off

      D4 network framing enabled                 S2/1            On

     B8ZS line code enabled                     S2/2            Off

      AMI line code enabled                      S2/2            On

     Internal timing source enabled             S2/5            Off

      Network timing source enabled              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

                           DATA RATE TIME SLOTS

       Setting           S1/1      S1/2       S1/3      S1/4       S1/5

        1 time slot       Off       Off       Off       Off         On

       2 time slots       Off       Off       Off        On        Off

       3 time slots       Off       Off       Off        On         On

       4 time slots       Off       Off        On       Off        Off

       5 time slots       Off       Off        On       Off         On

       6 time slots       Off       Off        On        On        Off

       7 time slots       Off       Off        On        On         On

       8 time slots       Off       On        Off       Off        Off

       9 time slots       Off       On        Off       Off         On

       10 time slots      Off       On        Off        On        Off

       11 time slots      Off       On        Off        On         On

       12 time slots      Off       On         On       Off        Off

       13 time slots      Off       On         On       Off         On

       14 time slots      Off       On         On        On        Off

       15 time slots      Off       On         On        On         On

       16 time slots      On        Off       Off       Off        Off

       17 time slots      On        Off       Off       Off         On

       18 time slots      On        Off       Off        On        Off

       19 time slots      On        Off       Off        On         On

       20 time slots      On        Off        On       Off        Off

       21 time slots      On        Off        On       Off         On

       22 time slots      On        Off        On        On        Off

       23 time slots      On        Off        On        On         On

      24 time slots      Off       Off       Off       Off        Off

                               DATA ENCODING

            Setting                     S1/8                 S1/9

         Normal encoding               Off                   Off

           HDLC encoding                Off                   On

          Forced encoding                On                   Off

                                LINE BUILD

          Net build                   S2/3                   S2/4

              0dB                     Off                   Off

              -7.5dB                   Off                    On

              -15dB                    On                    Off

                        SERIAL PORT RATE SELECTION

          Setting                 S2/6           S2/7           S2/8

             1200bps              Off             On             On

             2400bps              Off             On             Off

             4800bps              Off             Off            On

            9600bps              Off             Off            Off

            19.2Kbps               On             On             Off

                       SERIAL PORT PARITY SELECTION

          Setting                   SW2/9                  SW2/10

             None                   Off                     Off

              Odd                    Off                     On

              Even                   On                      Off

                             DIAGNOSTIC LED(S)

   LED         Color         Status                 Condition

   PWR         Green           On           DSU/CSU power is on and has
                                               passed the self test

   PWR          Red            On         DSU/CSU power is on; self test
                                                     failed.

   PWR           Yellow     Blinking      DSU/CSU power is on; self test
                                                    is running

   PWR           Yellow        On         DSU/CSU is on; test other than
                                               self test is running

   PWR            None         Off                 Power is off

   NET         Green           On           Network connection is good

   NET          Red            On          DSU/CSU cannot synchronize to
                                                  network frame

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

   NET           Yellow        On         Yellow or blue alarm condition
                                               detected on network

   NET            None         Off         Network connection is broken

   NLBK          Yellow        On        DSU or CSU loopback initiated by
                                            user or management station

   NLBK          Yellow        Off         DSU or CSU 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         DSU/CSU remote loop test not
                                                     running

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

   DTE           Yellow     Blinking           DTE loopback running

   DTE           Yellow        Off           DTE loopback not running

    TD            Green        On        DSU/CSU is detecting pulses from
                                                     the DTE

    TD            Green        Off        DSU/CSU is not detecting pulses
                                                     from DTE

    RD            Green        On        DSU/CSU is receiving pulses from
                                                     network

    RD            Green        Off        DSU/CSU is not receiving pulses
                                                   from network

   RTS           Yellow        On               RTS signal is high

   RTS           Yellow        Off              RTS signal is low

   CTS           Yellow        On               CTS signal is high

   CTS           Yellow        Off              CTS signal is low

   DTR           Yellow        On               DTR signal is high

   DTR           Yellow        Off              DTR signal is low

