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       # DIGICOM SYSTEMS, INC.
       
          CONNECTION 96+
       
          Card Type              Fax, Modem (asynchronous)               
          Chip Set               Unidentified                            
          Maximum Data Rate      14.4Kbps                                
          Maximum Fax Rate       14.4Kbps                                
          Data Bus               8-bit ISA                               
          Fax Class              Class I                                 
          Data Modulation        Bell 103/212A                           
          Protocol                                                       
                                 ITU-T V.21, V.22, V.22bis, V.23, V.32,  
                                 V.32bis                                 
          Fax Modulation         ITU-T V.17, V.21CH2, V.27ter, V.29      
          Protocol               
          Error                  MNP5, V.42, V.42bis                     
          Correction/Compression 
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |        Function        |  Label   |   Function   |  Label  |
          |------------------------------------------------------------|
          | Line in                     |    CN1     | Line out | CN2  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    SERIAL PORT ADDRESS                     |
          |------------------------------------------------------------|
          |    Setting    |   SW1/1   |  SW1/2   |  SW1/3   |  SW1/4   |
          |---------------+-----------+----------+----------+----------|
          |  COM1 (3F8h)  |    Off    |   Off    |   Off    |    On    |
          |---------------+-----------+----------+----------+----------|
          |  COM2 (2F8h)  |    On     |   Off    |   Off    |    On    |
          |---------------+-----------+----------+----------+----------|
          |  COM3 (3E8h)  |    Off    |    On    |   Off    |    On    |
          |---------------+-----------+----------+----------+----------|
          | í COM4 (2E8h) |    On     |    On    |   Off    |    On    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    INTERRUPT SELECTION                     |
          |------------------------------------------------------------|
          |     Setting      |        JP1         |        JP2         |
          |------------------+--------------------+--------------------|
          |        3         | Pins 1 & 2 closed  |        N/A         |
          |------------------+--------------------+--------------------|
          |        4         |        N/A         | Pins 2 & 3 closed  |
          |------------------+--------------------+--------------------|
          |        5         |        N/A         | Pins 1 & 2 closed  |
          |------------------+--------------------+--------------------|
          |        9         | Pins 2 & 3 closed  |        N/A         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   SUPPORTED COMMAND SET                    |
          |------------------------------------------------------------|
          |                     Basic AT Commands                      |
          |------------------------------------------------------------|
          | AT, ‘+++’, ‘Comma’, A/                                     |
          |------------------------------------------------------------|
          | A, B, E, H, L, M, O, Q, S, V, W, X, Z                      |
          |------------------------------------------------------------|
          | &C, &D, &F, &K, &P, &S, &T, &U, &V                         |
          |------------------------------------------------------------|
          |                    Extended AT Commands                    |
          |------------------------------------------------------------|
          | %L, %Q                                                     |
          |------------------------------------------------------------|
          |                        S Registers                         |
          |------------------------------------------------------------|
          | S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12,     |
          | S18, S25, S26, S36, S37, S48                               |
          |------------------------------------------------------------|
          | Note: Please see MHI Help file for full command            |
          | documentation.                                             |
          +------------------------------------------------------------+
       
                            Proprietary AT Command Set
       
          +------------------------------------------------------------+
          |                        AUTO-RETRAIN                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %En [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Controls auto-retrain mode                  |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í %E0     | Auto-retrain disabled                       |
          |--------------+---------------------------------------------|
          |     %E1      | Auto-retrain enabled                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        CONNECT MODE                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \Nn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Controls the type of connection the modem   |
          |              | will operate in                             |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     \N0      | Normal mode enabled                         |
          |--------------+---------------------------------------------|
          |     \N1      | Direct mode enabled                         |
          |--------------+---------------------------------------------|
          |     \N2      | Reliable MNP4 mode enabled                  |
          |--------------+---------------------------------------------|
          |     \N3      | Auto-reliable MNP4 mode enabled             |
          |--------------+---------------------------------------------|
          |     \N4      | Reliable V.42 mode enabled                  |
          |--------------+---------------------------------------------|
          |    í \N5     | Auto-reliable V.42 mode enabled             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                            DIAL                            |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] D<#> [cmds]                       |
          |--------------+---------------------------------------------|
          | Description: | Dials telephone number according to any     |
          |              | modifiers included in the string            |
          |--------------+---------------------------------------------|
          | Note:        | Any combination of modifiers can be used to |
          |              | produce the desired dial functions in       |
          |              | sequence.                                   |
          |--------------+---------------------------------------------|
          |   Modifier   |                  Function                   |
          |--------------+---------------------------------------------|
          |      P       | Pulse dialing enabled                       |
          |--------------+---------------------------------------------|
          |      R       | Answer mode enabled, originate mode         |
          |              | disabled following handshake initiation     |
          |--------------+---------------------------------------------|
          |      T       | Tone dialing enabled                        |
          |--------------+---------------------------------------------|
          |      W       | Dialing resumed following dial tone         |
          |              | detection                                   |
          |--------------+---------------------------------------------|
          |      ,       | Dialing paused for amount of time specified |
          |              | in S8 register                              |
          |--------------+---------------------------------------------|
          |      @       | Wait for 5 seconds of silence               |
          |--------------+---------------------------------------------|
          |      ;       | Modem returned to command state after       |
          |              | dialing                                     |
          |--------------+---------------------------------------------|
          |      !       | Modem commanded to go off-hook for half a   |
          |              | second                                      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     REPORT INFORMATION                     |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] In [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Displays information requested              |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      I0      | Reports product code                        |
          |--------------+---------------------------------------------|
          |      I1      | Reports firmware ROM checksum number        |
          |--------------+---------------------------------------------|
          |      I2      | Tests and reports ROM checksum, ‘OK’ or     |
          |              | ‘ERROR’                                     |
          |--------------+---------------------------------------------|
          |      I3      | Reports <Filename><Control code>/<DSP code  |
          |              | version>                                    |
          +------------------------------------------------------------+