EVEREX SYSTEMS, INC.
====================

   EMAC-MD1200 (EV-936)

   Card Type                    Modem (asynchronous)              
   Chipset                      Unidentified                      
   I/O Options                  Speakerphone                      
   Maximum Data Rate            1200bps                           
   Data Modulation              Bell 103A/212A                    
                                                                  
                                ITU-T V.21, V.22                  
   Error Correction/Compression None                              
   Data Bus                     Serial                            

<gopher://bitreich.org/I/th99/t/E-H/53188-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |        Function        | Label |     Function      | Label |
   |------------------------+-------+-------------------+-------|
   | Speakerphone button    |  BT1  | DC power in       |  CN4  |
   |------------------------+-------+-------------------+-------|
   | Mute button            |  BT2  | Microphone        |  MIC  |
   |------------------------+-------+-------------------+-------|
   | Telephone line out     |  CN1  | Volume control    |  R1   |
   |------------------------+-------+-------------------+-------|
   | Telephone line in      |  CN2  | Power switch      |  SW2  |
   |------------------------+-------+-------------------+-------|
   | RS-232/422 port        |  CN3  |                   |       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |                 Setting                 | Label | Position |
   |-----------------------------------------+-------+----------|
   | i Modem ignores DTR                     | SW1/1 |   Off    |
   |-----------------------------------------+-------+----------|
   | Modem disconnects and does not accept   | SW1/1 |    On    |
   | commands on low DTR; auto-answer is     |       |          |
   | disabled                                |       |          |
   |-----------------------------------------+-------+----------|
   | i Verbose result code format enabled.   | SW1/2 |   Off    |
   |-----------------------------------------+-------+----------|
   | Numeric result code format enabled.     | SW1/2 |    On    |
   |-----------------------------------------+-------+----------|
   | i Result codes enabled                  | SW1/3 |   Off    |
   |-----------------------------------------+-------+----------|
   | Result codes disabled                   | SW1/3 |    On    |
   |-----------------------------------------+-------+----------|
   | i Command echo enabled                  | SW1/4 |   Off    |
   |-----------------------------------------+-------+----------|
   | Command echo disabled                   | SW1/4 |    On    |
   |-----------------------------------------+-------+----------|
   | i Auto-answer disabled                  | SW1/5 |   Off    |
   |-----------------------------------------+-------+----------|
   | Auto-answer after first ring            | SW1/5 |    On    |
   |-----------------------------------------+-------+----------|
   | i CD signal forced high                 | SW1/6 |   Off    |
   |-----------------------------------------+-------+----------|
   | CD signal normal                        | SW1/6 |    On    |
   |-----------------------------------------+-------+----------|
   | i Modem is connected to RJ-11 or RJ-14  | SW1/7 |   Off    |
   | jack                                    |       |          |
   |-----------------------------------------+-------+----------|
   | Modem is connected to RJ-12 or RJ-13    | SW1/7 |    On    |
   | jack                                    |       |          |
   |-----------------------------------------+-------+----------|
   | i Command set enabled                   | SW1/8 |   Off    |
   |-----------------------------------------+-------+----------|
   | Command set disabled                    | SW1/8 |    On    |
   |-----------------------------------------+-------+----------|
   | i Modem uses Bell 212A at 1200bps       | SW1/9 |   Off    |
   |-----------------------------------------+-------+----------|
   | Modem uses ITU-T V.22 at 1200bps        | SW1/9 |    On    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DIAGNOSTIC LED(S)                      |
   |------------------------------------------------------------|
   | LED | Color |  Status  |             Condition             |
   |-----+-------+----------+-----------------------------------|
   | SPL |  Red  |    On    |   Modem is in speakerphone mode   |
   |-----+-------+----------+-----------------------------------|
   | SPL |  Red  |   Off    | Modem is not in speakerphone mode |
   |-----+-------+----------+-----------------------------------|
   | ML  |  Red  |    On    |       Speakerphone is muted       |
   |-----+-------+----------+-----------------------------------|
   | ML  |  Red  |   Off    |     Speakerphone is not muted     |
   |-----+-------+----------+-----------------------------------|
   | RI  |  Red  |    On    |         Phone is ringing          |
   |-----+-------+----------+-----------------------------------|
   | RI  |  Red  |   Off    |       Phone is not ringing        |
   |-----+-------+----------+-----------------------------------|
   | HS  |  Red  |    On    |   Modem is operating at 1200bps   |
   |-----+-------+----------+-----------------------------------|
   | HS  |  Red  |   Off    |   Modem is operating at 300bps    |
   |-----+-------+----------+-----------------------------------|
   | AA  |  Red  |    On    |        Auto-answer enabled        |
   |-----+-------+----------+-----------------------------------|
   | AA  |  Red  |   Off    |       Auto-answer disabled        |
   |-----+-------+----------+-----------------------------------|
   | CD  |  Red  |    On    |      Carrier signal detected      |
   |-----+-------+----------+-----------------------------------|
   | CD  |  Red  |   Off    |    Carrier signal not detected    |
   |-----+-------+----------+-----------------------------------|
   | OH  |  Red  |    On    |         Modem is off-hook         |
   |-----+-------+----------+-----------------------------------|
   | OH  |  Red  |   Off    |         Modem is on-hook          |
   |-----+-------+----------+-----------------------------------|
   | RD  |  Red  | Blinking |      Modem is receiving data      |
   |-----+-------+----------+-----------------------------------|
   | RD  |  Red  |   Off    |    Modem is not receiving data    |
   |-----+-------+----------+-----------------------------------|
   | TD  |  Red  | Blinking |    Modem is transmitting data     |
   |-----+-------+----------+-----------------------------------|
   | TD  |  Red  |   Off    |  Modem is not transmitting data   |
   |-----+-------+----------+-----------------------------------|
   | TR  |  Red  |    On    |        DTR signal is high         |
   |-----+-------+----------+-----------------------------------|
   | TR  |  Red  |   Off    |         DTR signal is low         |
   |-----+-------+----------+-----------------------------------|
   | MR  |  Red  |    On    |            Power is on            |
   |-----+-------+----------+-----------------------------------|
   | MR  |  Red  |   Off    |           Power is off            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                SUPPORTED STANDARD COMMANDS                 |
   |------------------------------------------------------------|
   |                     Basic AT Commands                      |
   |------------------------------------------------------------|
   | +++, 'comma', A/                                           |
   |------------------------------------------------------------|
   | A, B, E, F, H, L, M, O, Q, V, X, Y, Z                      |
   |------------------------------------------------------------|
   | &C, &D, &G, &L, &P, &T                                     |
   |------------------------------------------------------------|
   |                        S-Registers                         |
   |------------------------------------------------------------|
   | S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12,     |
   | S14, S18, S21, S22, S23, S27                               |
   |------------------------------------------------------------|
   |      Note: See MHI help file for complete information.     |
   +------------------------------------------------------------+

                     Proprietary AT Command Set

   +------------------------------------------------------------+
   |                   TRANSMIT EQUALIZATION                    |
   |------------------------------------------------------------|
   | Type:        | Configuration                               |
   |--------------+---------------------------------------------|
   | Format:      | AT [cmds] Un [cmds]                         |
   |--------------+---------------------------------------------|
   | Description: | Selects how much transmit equalization the  |
   |              | modem will use.                             |
   |--------------+---------------------------------------------|
   |   Command    |                  Function                   |
   |--------------+---------------------------------------------|
   |      U0      | Modem will use the average amount of        |
   |              | transmit equalization.                      |
   |--------------+---------------------------------------------|
   |      U1      | Modem will use the maximum amount of        |
   |              | transmit equalization.                      |
   |--------------+---------------------------------------------|
   |     i U2     | Modem auto-detects correct amount of        |
   |              | transmit equalization during handshaking.   |
   +------------------------------------------------------------+

  See EVEREX SYSTEMS, INC EMAC-MD2400 (EV-945) for a full command
                              summary.