STOLLMANN GMBH

TA+ X.21

Card Type                ISDN TA
Chip Set                 Unidentified
Maximum Data Rate        64Kbps x 2
Data Bus                 External
Data Modulation Protocol V.110, 1TR6, DSS1, X.30

[Image]

                             DIAGNOSTIC LED(S)

    LED         Color        Status                 Condition

     T           Red           On            TA is transmitting data

     T           Red           Off         TA is not transmitting data

     R           Red           On             TA is receiving data

     R           Red           Off          TA is not receiving data

     C           Red           On              DTR signal is high

     C           Red           Off              DTR signal is low

     I           Red           On            Carrier signal detected

     I           Red           Off         Carrier signal not detected

    L2 Status          L1 Status                    Condition

       On                  On            TA is performing power-up tests
                                                 or is connected

    Blinking            Blinking                 TA is resetting

       Off                 On                      TA is ready

  .25s on, .75s            On                  Call is in progress
       off

  .75s on, .25s            On              Negotiation is in progress
       off

  1s on, 1s off            On                No ISDN signal detected

   .5s on, .5s             On                    Remote TA busy
       off

   .3s on, .3s             On               Remote TA did not answer
       off

  .25s on, .25s            On            Could not connect to remote TA
       off

       Off                Off                Hardware error detected

    Blinking              Off                Hardware error detected

       Off         .25s on, .75s off             ISDN has failed

                          Proprietary Command Sets

               See document V1973 for a full command summary.