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       # ZOLTRIX, INC.
       
          FM-VSP56I
       
          Card Type              Modem, Fax                              
          Chip Set               Rockwell                                
          I/O Options            Speaker out, microphone in              
          Maximum Modem Rate     56Kbps                                  
          Maximum Fax Rate       14.4Kbps                                
          Data Modulation        Bell 103A/212A                          
          Protocol                                                       
                                 ITU-T V.21, V.22, V.22bis, V.32,        
                                 V.32bis, V.34, K56Flex                  
          Fax Modulation         ITU-T V.17, V.27ter, V.29               
          Protocol               
          Error                  MNP5, MNP10, V.42, V.42bis              
          Correction/Compression 
          Fax Class              Class I                                 
          Data Bus               16-bit ISA                              
          Card Size              Half-length, half-height card           
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |       Function       | Label  |   Function    |   Label    |
          |------------------------------------------------------------|
          | Line in                  |   CN1    | Microphone in | CN3  |
          |--------------------------+----------+---------------+------|
          | Line out                 |   CN2    | Speaker out   | CN4  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    SERIAL PORT ADDRESS                     |
          |------------------------------------------------------------|
          |          Setting           |              JP1              |
          |----------------------------+-------------------------------|
          |        COM1 (3F8h)         |   Pins 1 & 3, 2 & 4 closed    |
          |----------------------------+-------------------------------|
          |        COM2 (2F8h)         |   Pins 3 & 5, 2 & 4 closed    |
          |----------------------------+-------------------------------|
          |        COM3 (3E8h)         |   Pins 1 & 3, 4 & 6 closed    |
          |----------------------------+-------------------------------|
          |        COM4 (2E8h)         |   Pins 3 & 5, 4 & 6 closed    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   SUPPORTED COMMAND SET                    |
          |------------------------------------------------------------|
          |                     Basic AT Commands                      |
          |------------------------------------------------------------|
          | AT, A/                                                     |
          |------------------------------------------------------------|
          | A, B, C, D, E, H, I, L, M, N, O, P, Q, T, V, W, X, Y, Z    |
          |------------------------------------------------------------|
          | &C, &D, &F, &G, &J, &K, &L, &M, &P, &R, &S, &T, &W, &X,    |
          | &Y, &Z                                                     |
          |------------------------------------------------------------|
          |                    Extended AT Commands                    |
          |------------------------------------------------------------|
          | \A, \B, \G, \K, \N, \V                                     |
          |------------------------------------------------------------|
          | %C, %E, %L, %Q                                             |
          |------------------------------------------------------------|
          |                        S Registers                         |
          |------------------------------------------------------------|
          | S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12,     |
          | S14, S16, S18, S21, S22, S23, S24, S25,                    |
          |------------------------------------------------------------|
          | S26, S27, S28, S29, S30, S31, S32, S33, S37, S38, S39,     |
          | S40, S41, S46, S82, S86, S91, S95                          |
          |------------------------------------------------------------|
          |                      Special Commands                      |
          |------------------------------------------------------------|
          | +MS                                                        |
          |------------------------------------------------------------|
          | Note: See MHI Help File for full command documentation.    |
          +------------------------------------------------------------+
       
                            Proprietary AT Command Set
       
          +------------------------------------------------------------+
          |                    COMMUNICATIONS MODE                     |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Qn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects communications mode options         |
          |--------------+---------------------------------------------|
          |   Command    |                    Mode                     |
          |--------------+---------------------------------------------|
          |     &Q0      | Asynchronous mode, serial port speed        |
          |              | follows connect speed.                      |
          |--------------+---------------------------------------------|
          | » &Q5        | Error correction mode                       |
          |--------------+---------------------------------------------|
          |     &Q6      | Buffered asynchronous mode                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   CONFIGURATION PROFILES                   |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &V [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Displays active and stored configuration    |
          |              | profiles                                    |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &V1      | Displays statistics of previous connection  |
          +------------------------------------------------------------+
       
                              S(Status) - Registers
       
          +------------------------------------------------------------+
          |               AUTOSYNC HDLC ADDRESS SETTINGS               |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S20=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Controls the AutoSync HDLC address settings |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                BIT-MAPPED AUTOSYNC OPTIONS                 |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S19=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Controls the AutoSync configuration options |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                ERROR CORRECTION NEGOTIATION                |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S36=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Selects the action of the modem if it fails |
          |              | to connect with the error-correction        |
          |              | protocol set in &Q.                         |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    S36=0     | Hang up                                     |
          |--------------+---------------------------------------------|
          |    S36=1     | Attempt a direct connection                 |
          |--------------+---------------------------------------------|
          |    S36=2     | Not used                                    |
          |--------------+---------------------------------------------|
          |    S36=3     | Attempt a buffered connection               |
          |--------------+---------------------------------------------|
          |    S36=4     | Attempt a connection at MNP2-4; if that     |
          |              | fails, hang up.                             |
          |--------------+---------------------------------------------|
          |    S36=5     | Attempt a connection at MNP2-4; if that     |
          |              | fails, attempt a direct connection.         |
          |--------------+---------------------------------------------|
          |    S36=6     | Attempt a connection at MNP2-4; if that     |
          |              | fails, hang up.                             |
          |--------------+---------------------------------------------|
          |   í S36=7    | Attempt a connection at MNP2-4; if that     |
          |              | fails, attempt a buffered connection.       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                FEATURE NEGOTIATION OPTIONS                 |
          |------------------------------------------------------------|
          | Type:                          | Register                  |
          |------------------------------------------------------------|
          | Format:      | AT [cmds] S48=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Selects active error correction and         |
          |              | compression protocols                       |
          |------------------------------------------------------------|
          |    Command    |                  Function                  |
          |---------------+--------------------------------------------|
          |     S48=0     | Detection negotiation disabled, XID        |
          |               | negotiation disabled                       |
          |---------------+--------------------------------------------|
          |    í S48=7    | Detection negotiation and XID negotiation  |
          |               | enabled                                    |
          |---------------+--------------------------------------------|
          |    S48=128    | Fall-back to options set in S36            |
          +------------------------------------------------------------+