MULTI-TECH SYSTEMS, INC.
========================

   ISI2834/4, ISI2834/8, ISI2834/EC

   Card Type              Modem (asynchronous)                    
   Processor Type         80186                                   
   Processor Speed        16MHz                                   
   Chip Set               Unidentified                            
   Maximum Onboard Memory 256KB RAM                               
   Maximum Data Rate      28.8Kbps x 4 (8 with daughtercard)      
   Maximum Fax Rate       14.4Kbps x 4 (8 with daughtercard)      
   Data Bus               16-bit ISA                              
   Fax Class              Class II                                
   Data Modulation        Bell 103A/212A                          
   Protocol                                                       
                          ITU-T V.22, V.22bis, V.32, V.32bis,     
                          V.34                                    
                                                                  
                          AT&T V.32terbo                          
   Fax Modulation         ITU-T V.17, V.21CH2, V.27ter, V.29      
   Protocol               
   Error                  MNP5, V.42, V.42bis                     
   Correction/Compression 

<gopher://bitreich.org/I/th99/t/M-O/53733-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |     Function     | Label |        Function         | Label |
   |------------------+-------+-------------------------+-------|
   | Telephone line 1 |  J1   | Telephone line 8 out    |  J8   |
   | out              |       |                         |       |
   |------------------+-------+-------------------------+-------|
   | Telephone line 2 |  J2   | Header to daughterboard |  J9A  |
   | out              |       | J9B                     |       |
   |------------------+-------+-------------------------+-------|
   | Telephone line 3 |  J3   | Header to main board    |  J9B  |
   | out              |       | J9A                     |       |
   |------------------+-------+-------------------------+-------|
   | Telephone line 4 |  J4   | Header to daughterboard | J10A  |
   | out              |       | J10B                    |       |
   |------------------+-------+-------------------------+-------|
   | Telephone line 5 |  J5   | Header to main board    | J10B  |
   | out              |       | J10A                    |       |
   |------------------+-------+-------------------------+-------|
   | Telephone line 6 |  J6   | Header to daughterboard | J11A  |
   | out              |       | J11B                    |       |
   |------------------+-------+-------------------------+-------|
   | Telephone line 7 |  J7   | Header to main board    | J11B  |
   | out              |       | J11A                    |       |
   |------------------------------------------------------------|
   |      Note: J5 through J8 will not be active unless the     |
   |      daughtercard is installed.                            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |             Setting             | Label |     Position     |
   |---------------------------------+-------+------------------|
   | i Daughtercard is not installed |  JP1  |    Pins 1 & 2    |
   |                                 |       |      closed      |
   |---------------------------------+-------+------------------|
   | Daughtercard is installed       |  JP1  |    Pins 2 & 3    |
   |                                 |       |      closed      |
   +------------------------------------------------------------+

+----------------------------------------------------------------------+
|                         INTERRUPT SELECTION                          |
|----------------------------------------------------------------------|
|Setting|JP2/A |JP2/B |JP2/C |JP2/D |JP2/E |JP2/F |JP2/G |JP2/H |JP2/I |
|-------+------+------+------+------+------+------+------+------+------|
|   2   |Closed| Open | Open | Open | Open | Open | Open | Open | Open |
|-------+------+------+------+------+------+------+------+------+------|
|  i 3  | Open |Closed| Open | Open | Open | Open | Open | Open | Open |
|-------+------+------+------+------+------+------+------+------+------|
|   4   | Open | Open |Closed| Open | Open | Open | Open | Open | Open |
|-------+------+------+------+------+------+------+------+------+------|
|   5   | Open | Open | Open |Closed| Open | Open | Open | Open | Open |
|-------+------+------+------+------+------+------+------+------+------|
|   7   | Open | Open | Open | Open |Closed| Open | Open | Open | Open |
|-------+------+------+------+------+------+------+------+------+------|
|  10   | Open | Open | Open | Open | Open |Closed| Open | Open | Open |
|-------+------+------+------+------+------+------+------+------+------|
|  11   | Open | Open | Open | Open | Open | Open |Closed| Open | Open |
|-------+------+------+------+------+------+------+------+------+------|
|  12   | Open | Open | Open | Open | Open | Open | Open |Closed| Open |
|-------+------+------+------+------+------+------+------+------+------|
|  15   | Open | Open | Open | Open | Open | Open | Open | Open |Closed|
+----------------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 BASE I/O ADDRESS SELECTION                 |
   |------------------------------------------------------------|
   |Setting|SW1/1 |SW1/2 |SW1/3 |SW1/4 |SW1/5 |SW1/6|SW1/7|SW1/8|
   |-------+------+------+------+------+------+-----+-----+-----|
   | 000h  |  On  |  On  |  On  |  On  |  On  | On  | On  | On  |
   |-------+------+------+------+------+------+-----+-----+-----|
   | 008h  | Off  |  On  |  On  |  On  |  On  | On  | On  | On  |
   |-------+------+------+------+------+------+-----+-----+-----|
   | 010h  |  On  | Off  |  On  |  On  |  On  | On  | On  | On  |
   |-------+------+------+------+------+------+-----+-----+-----|
   | 018h  | Off  | Off  |  On  |  On  |  On  | On  | On  | On  |
   |-------+------+------+------+------+------+-----+-----+-----|
   | 020h  |  On  |  On  | Off  |  On  |  On  | On  | On  | On  |
   |-------+------+------+------+------+------+-----+-----+-----|
   |i 200h |  On  |  On  |  On  |  On  |  On  | On  | Off | On  |
   |-------+------+------+------+------+------+-----+-----+-----|
   | 7D8h  | Off  | Off  |  On  | Off  | Off  | Off | Off | Off |
   |-------+------+------+------+------+------+-----+-----+-----|
   | 7E0h  |  On  |  On  | Off  | Off  | Off  | Off | Off | Off |
   |-------+------+------+------+------+------+-----+-----+-----|
   | 7E8h  | Off  |  On  | Off  | Off  | Off  | Off | Off | Off |
   |-------+------+------+------+------+------+-----+-----+-----|
   | 7F0h  |  On  | Off  | Off  | Off  | Off  | Off | Off | Off |
   |-------+------+------+------+------+------+-----+-----+-----|
   | 7F8h  | Off  | Off  | Off  | Off  | Off  | Off | Off | Off |
   |------------------------------------------------------------|
   |     Note: A total of 256 base address settings are         |
   |     available. The switches are a binary representation of |
   |     the decimal memory addresses. SW1/8 is the Most        |
   |     Significant Bit and switch SW1/1 is the Least          |
   |     Significant Bit. The switches have the following       |
   |     decimal values: SW1/8=1024, SW1/7=512, SW1/6=256,      |
   |     SW1/5=128, SW1/4=64, SW1/3=32, SW1/2=16, SW1/1=8. Turn |
   |     off the switches and add the values of the switches    |
   |     that are off to obtain the correct memory address.     |
   |     (Off=1, On=0)                                          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                SUPPORTED STANDARD COMMANDS                 |
   |------------------------------------------------------------|
   |                     Basic AT Commands                      |
   |------------------------------------------------------------|
   | +++, 'comma', A/                                           |
   |------------------------------------------------------------|
   | A, B, D, E, H, O, P, T, V, W, X, Y, Z                      |
   |------------------------------------------------------------|
   | &D, &F, &G, &P, &S, &T, &W                                 |
   |------------------------------------------------------------|
   |                        S-Registers                         |
   |------------------------------------------------------------|
   | S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S30      |
   |------------------------------------------------------------|
   |      Note: See MHI documentation for complete information. |
   +------------------------------------------------------------+

                     Proprietary AT Command Set

 See MULTI-TECH SYSTEMS, INC. ISI3334/8 for a full command summary.