(TXT) View Source
       
       # ENTRE COMPUTER CENTER
       
          ENTRE 1200B
       
          Modem Type               Data (asynchronous)                   
          Maximum Data Rate        1200bps                               
          Data Bus                 8-bit ISA                             
          Data Modulation Protocol Unidentified                          
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |      Purpose      | Location |     Purpose      | Location |
          |-------------------+----------+------------------+----------|
          | Line out          |   CN1    | Line in          |   CN2    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 SERIAL PORT CONFIGURATION                  |
          |------------------------------------------------------------|
          |      Port      |     IRQ     |    SW1/3     |    SW1/4     |
          |----------------+-------------+--------------+--------------|
          | COM1: (3F8h)   |      4      |      On      |     Off      |
          |----------------+-------------+--------------+--------------|
          | » COM2: (2F8h) |      3      |     Off      |     Off      |
          |----------------+-------------+--------------+--------------|
          | COM3: (3E8h)   |      4      |      On      |      On      |
          |----------------+-------------+--------------+--------------|
          | COM4: (2E8h)   |      3      |     Off      |      On      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        AUTO ANSWER                         |
          |------------------------------------------------------------|
          | Setting                              |        SW1/2        |
          |--------------------------------------+---------------------|
          | » Auto answer enabled                |         Off         |
          |--------------------------------------+---------------------|
          | Auto answer disabled                 |         On          |
          |------------------------------------------------------------|
          | Note: S14 holds the state of this switch at the time power |
          | turned on, or if a reset command is enabled.               |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                            DTR                             |
          |------------------------------------------------------------|
          | Setting                       |           SW1/1            |
          |-------------------------------+----------------------------|
          | » DTR normal                  |            Off             |
          |-------------------------------+----------------------------|
          | DTR forced high               |             On             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    SLOT 8 INSTALLATION                     |
          |------------------------------------------------------------|
          | Setting                       |            JP1             |
          |-------------------------------+----------------------------|
          | » Normal installation         |     Pins 2 & 3 closed      |
          |-------------------------------+----------------------------|
          | IBM XT slot 8 installation    |     Pins 1 & 2 closed      |
          +------------------------------------------------------------+
       
                            Proprietary AT Command Set
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S13                   |
          |------------------------------------------------------------|
          | Format        | AT [cmds] S13? [cmds]                      |
          |---------------+--------------------------------------------|
          | Example:      | ATS13?<CR>                                 |
          |---------------+--------------------------------------------|
          | Default:      | Read-only                                  |
          |---------------+--------------------------------------------|
          | Range:        | 0 - 222                                    |
          |---------------+--------------------------------------------|
          | Unit:         | Bit-mapped                                 |
          |---------------+--------------------------------------------|
          | Description:  | Displays extended result codes, parity,    |
          |               | data bits, and buffer overrflow.           |
          |------------------------------------------------------------|
          |   Bit   | Value |                 Function                 |
          |---------+-------+------------------------------------------|
          |    0    | 0     | Not used.                                |
          |---------+-------+------------------------------------------|
          |    1    | 0 1   | Extended result codes disabled.          |
          |         |       |                                          |
          |         |       | Extended result codes enabled.           |
          |---------+-------+------------------------------------------|
          |    2    | 0 1   | Parity disabled.                         |
          |         |       |                                          |
          |         |       | Parity enabled.                          |
          |---------+-------+------------------------------------------|
          |    3    | 0 1   | Odd parity.                              |
          |         |       |                                          |
          |         |       | Even parity.                             |
          |---------+-------+------------------------------------------|
          |    4    | 0 1   | 7 data bits.                             |
          |         |       |                                          |
          |         |       | 8 data bits.                             |
          |---------+-------+------------------------------------------|
          |    5    |  N/A  | Not used.                                |
          |---------+-------+------------------------------------------|
          |    6    | 0 1   | Buffer is not full.                      |
          |         |       |                                          |
          |         |       | Buffer overflow; ERROR result code sent. |
          |---------+-------+------------------------------------------|
          |    7    | 0 1   | Space parity.                            |
          |         |       |                                          |
          |         |       | Mark parity.                             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S14                   |
          |------------------------------------------------------------|
          | Format         | AT [cmds] S14? [cmds]                     |
          |----------------+-------------------------------------------|
          | Example:       | ATS14?<CR>                                |
          |----------------+-------------------------------------------|
          | Default:       | Read-only                                 |
          |----------------+-------------------------------------------|
          | Range:         | 0 - 239                                   |
          |----------------+-------------------------------------------|
          | Unit:          | Bit-mapped                                |
          |----------------+-------------------------------------------|
          | Description:   | Displays the state of SW1/2, echo, result |
          |                | codes, tone/pulse dial, and speaker.      |
          |------------------------------------------------------------|
          |   Bit    | Value |                Function                 |
          |----------+-------+-----------------------------------------|
          |    0     | 0 1   | SW1/2 off (Auto-answer).                |
          |          |       |                                         |
          |          |       | SW1/2 on (Auto-answer).                 |
          |----------+-------+-----------------------------------------|
          |    1     | 0 1   | Echo disabled.                          |
          |          |       |                                         |
          |          |       | Echo enabled.                           |
          |----------+-------+-----------------------------------------|
          |    2     | 0 1   | Result codes enabled.                   |
          |          |       |                                         |
          |          |       | Result codes disabled.                  |
          |----------+-------+-----------------------------------------|
          |    3     | 0 1   | Numeric result codes.                   |
          |          |       |                                         |
          |          |       | Verbose result codes.                   |
          |----------+-------+-----------------------------------------|
          |    4     | 0     | Not used.                               |
          |----------+-------+-----------------------------------------|
          |    5     | 0 1   | Pulse dial.                             |
          |          |       |                                         |
          |          |       | Tone dial.                              |
          |----------+-------+-----------------------------------------|
          |    6     | 0 1   | Speaker disabled                        |
          |          |       |                                         |
          |          |       | Speaker enabled until carrier signal is |
          |          |       | detected.                               |
          |----------+-------+-----------------------------------------|
          |    7     | 0 1   | Speaker disabled.                       |
          |          |       |                                         |
          |          |       | Speaker enabled.                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S15                   |
          |------------------------------------------------------------|
          | Format            | AT [cmds] S15? [cmds]                  |
          |-------------------+----------------------------------------|
          | Example:          | ATS15?<CR>                             |
          |-------------------+----------------------------------------|
          | Default:          | Read-only                              |
          |-------------------+----------------------------------------|
          | Range:            | 0 - 127                                |
          |-------------------+----------------------------------------|
          | Unit:             | Bit-mapped                             |
          |-------------------+----------------------------------------|
          | Description:      | Displays baud rate, answer/originate,  |
          |                   | duplex, CD signal.                     |
          |------------------------------------------------------------|
          |    Bit    | Value              |         Function          |
          |-----------+--------------------+---------------------------|
          |   1, 0    | 01 10 11           | 110bps.                   |
          |           |                    |                           |
          |           |                    | 300bps.                   |
          |           |                    |                           |
          |           |                    | 1200bps.                  |
          |-----------+--------------------+---------------------------|
          |     2     |         0          | Answer mode.              |
          |           |                    |                           |
          |           |         1          | Originate mode.           |
          |-----------+--------------------+---------------------------|
          |     3     |         0          | Half duplex.              |
          |           |                    |                           |
          |           |         1          | Full duplex.              |
          |-----------+--------------------+---------------------------|
          |   5, 4    | 01 10 11           | 110bps.                   |
          |           |                    |                           |
          |           |                    | 300bps.                   |
          |           |                    |                           |
          |           |                    | 1200bps.                  |
          |-----------+--------------------+---------------------------|
          |     6     |         0          | CD normal.                |
          |           |                    |                           |
          |           |         1          | CD forced high.           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         TEST MODES                         |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S16? [cmds]                       |
          |--------------+---------------------------------------------|
          | Example:     | AT S16? &T<CR>                              |
          |--------------+---------------------------------------------|
          | Description: | Displays analog loopback tests.             |
          |--------------+---------------------------------------------|
          | Command      |                  Function                   |
          |--------------+---------------------------------------------|
          |    S16=0     | Local analog loopback not in progress.      |
          |--------------+---------------------------------------------|
          |    S16=1     | Local analog loopback in progress.          |
          +------------------------------------------------------------+