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       # DIAMOND MULTIMEDIA SYSTEMS, INC.
       
          SUPRAEXPRESS 144 PLUS
       
          Card Type              Fax, Modem (synchronous/asynchronous)   
          Chip Set               Rockwell                                
          Maximum Data Rate      14.4Kbps                                
          Maximum Fax Rate       14.4Kbps                                
          Data Bus               External                                
          Fax Class              Class I                                 
          Data Modulation        Bell 103/212A                           
          Protocol                                                       
                                 ITU-T V.21, V.22, V.22bis, 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 out/in - Unidentified  |   CN1   | DC power     | CN4 |
          |-----------------------------+---------+--------------+-----|
          | Line in/out - Unidentified  |   CN2   | Power switch | SW1 |
          |-----------------------------+---------+--------------+-----|
          | RS-232/422                  |   CN3   |              |     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DIAGNOSTIC LED(S)                      |
          |------------------------------------------------------------|
          | LED  | Color | Status |             Condition              |
          |------+-------+--------+------------------------------------|
          | PWR  |  Red  |   On   |            Power is on             |
          |------+-------+--------+------------------------------------|
          | PWR  |  Red  |  Off   |            Power is off            |
          |------+-------+--------+------------------------------------|
          |  SD  |  Red  |   On   |     Modem is transmitting data     |
          |------+-------+--------+------------------------------------|
          |  SD  |  Red  |  Off   |   Modem is not transmitting data   |
          |------+-------+--------+------------------------------------|
          |  RD  |  Red  |   On   |      Modem is receiving data       |
          |------+-------+--------+------------------------------------|
          |  RD  |  Red  |  Off   |    Modem is not receiving data     |
          |------+-------+--------+------------------------------------|
          |  OH  |  Red  |   On   |         Modem is off-hook          |
          |------+-------+--------+------------------------------------|
          |  OH  |  Red  |  Off   |          Modem is on-hook          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   SUPPORTED COMMAND SET                    |
          |------------------------------------------------------------|
          |                     Basic AT Commands                      |
          |------------------------------------------------------------|
          | AT, ‘+++’, ‘comma’, A/                                     |
          |------------------------------------------------------------|
          | A, E, H, L, N, O, P, R, S, T, U, V, W, Y, Z                |
          |------------------------------------------------------------|
          | &A, &B, &C, &G, &J, &K, &L, &P, &R, &S, &T, &V, &W, &X,    |
          | &Y, &Z                                                     |
          |------------------------------------------------------------|
          |                    Extended AT Commands                    |
          |------------------------------------------------------------|
          | \A, \B, \C, \E, \G, \J, \K, \L, \N, \O, \Q, \T, \U, \V,    |
          | \W, \X, \Y, \Z                                             |
          |------------------------------------------------------------|
          | %A, %C, %E, %L, %Q, %TT                                    |
          |------------------------------------------------------------|
          |                        S Registers                         |
          |------------------------------------------------------------|
          | S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12,     |
          | S18, S38, S39,                                             |
          |------------------------------------------------------------|
          | S46, S48, S82, S86, S90, S91, S92, S95, S99, S108, S109,   |
          | S110, 201                                                  |
          |------------------------------------------------------------|
          |                      Special Commands                      |
          |------------------------------------------------------------|
          | "H, "N, "O,-J, )M, :E, +MS?, +MS                           |
          |------------------------------------------------------------|
          | Note: See MHI Help File for full command documentation.    |
          +------------------------------------------------------------+
       
                            Proprietary AT Command Set
       
            See model SUPRAEXPRESS 288 PNP for a full command summary.