CALPAK CORPORATION

MXE-2400SF

Modem Type            Data (synchronous/asynchronous)/Fax
Maximum Data Rate     2400bps
Maximum Fax Rate      9600bps
Data Bus              External
Fax Class             Unidentifed
Data Modulation       Unidentifed
Protocol
Fax Modulation        ITU-T V.21, V.27ter
Protocol

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                                CONNECTIONS

        Purpose           Location            Purpose            Location

  Line out                  CN1       RS-232/422                   CN3

  Line in                   CN2       AC power                     CN4

                             DIAGNOSTIC LED(S)

      LED        Status                      Condition

      AA           On                   Auto-answer enabled

      AA          Off                  Auto-answer disabled

      RXD          On                 Modem is receiving data

      RXD         Off               Modem is not receiving data

      TXD          On               Modem is transmitting data

      TXD         Off             Modem is not transmitting data

      CD           On                 Carrier signal detected

      CD          Off               Carrier signal not detected

      OH           On                    Modem is off-hook

      OH          Off                    Modem is on-hook

      HS           On              Modem is operating at 2400bps

      HS          Off        Modem is operating at slower than 2400bps

      DTR          On                   DTR signal is high

      DTR         Off                    DTR signal is low

      MR           On                       Power is on

      MR          Off                      Power is off

             MODE

   Settings        SW1/1

   Dumb mode         On

  Normal mode       Off

                  AUTO-ANSWER

        Settings                 SW1/2

  Auto-answer enabled             On

  Auto-answer disabled            Off

                 DCD

     Settings            SW1/3

    DCD normal             On

  DCD forced high         Off

               DTR

    Settings          SW1/4

  Reset ON DTR          On

  DTR ON to OFF        Off

              MISCELLANEOUS TECHNICAL NOTE

  Exact location of switches and LEDs is unidentified.

                         Proprietary AT Command Set

               See document V1558 for a full command summary.