CALPAK CORPORATION
==================

   MXE-2442B

   Modem Type                 Data (synchronous/asynchronous)/Fax 
   Maximum Data Rate          2400bps                             
   Maximum Fax Rate           9600bps                             
   Data Bus                   External                            
   Fax Class                  Unidentifed                         
   Data Modulation Protocol   Unidentifed                         
   Fax Modulation Protocol    ITU-T V.21, V.27ter                 
   Error                      MNP5, V.42, V.42bis                 
   Correction/Compression     

<gopher://bitreich.org/I/th99/t/C-D/51564-1.png>
   

   +------------------------------------------------------------+
   |                        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 V1559 for a full command summary.