U.S. ROBOTICS, INC.
===================

   COURIER V.34 FAX (EXTERNAL)

   Card Type              Fax, Modem (synchronous/asynchronous)   
   Chip Set               U.S. Robotics                           
   Maximum Data Rate      28.8Kbps                                
   Maximum Fax Rate       14.4Kbps                                
   Data Bus               External                                
   Fax Class              Class I & II                            
   Data Modulation        Bell 103/212A                           
   Protocol                                                       
                          ITU-T V.21, V.22, V.22bis, V.23,        
                          V.25bis, V.32, V.32bis, V.34            
                                                                  
                          Rockwell V.FC                           
                                                                  
                          U.S. Robotics HST, V.32terbo            
   Fax Modulation         ITU-T V.17, V.21, V.27ter, V.29         
   Protocol               
   Error                  HST, MNP5, V.42, V.42bis                
   Correction/Compression 

<gopher://bitreich.org/I/th99/t/U-Z/52008-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |     Function     | Label  |     Function     |    Label    |
   |------------------------------------------------------------|
   | RS-232/422           |   CN1    | DC power          | CN4  |
   |----------------------+----------+-------------------+------|
   | Line out             |   CN2    | Voice/Data switch | SW2  |
   |----------------------+----------+-------------------+------|
   | Line in              |   CN3    | Power switch      | SW3  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |                 Setting                 | Label | Position |
   |-----------------------------------------+-------+----------|
   | i DTR normal                            | SW1/A |   Off    |
   |-----------------------------------------+-------+----------|
   | DTR forced high                         | SW1/A |    On    |
   |-----------------------------------------+-------+----------|
   | i Verbose (word) format enabled         | SW1/B |   Off    |
   |-----------------------------------------+-------+----------|
   | Numeric format enabled                  | SW1/B |    On    |
   |-----------------------------------------+-------+----------|
   | i Result code display enabled           | SW1/C |    On    |
   |-----------------------------------------+-------+----------|
   | Result code display disabled            | SW1/C |   Off    |
   |-----------------------------------------+-------+----------|
   | i Local echo enabled                    | SW1/D |   Off    |
   |-----------------------------------------+-------+----------|
   | Local echo disabled                     | SW1/D |    On    |
   |-----------------------------------------+-------+----------|
   | i Auto-answer disabled                  | SW1/E |    On    |
   |-----------------------------------------+-------+----------|
   | Auto-answer enabled, off-hook on first  | SW1/E |   Off    |
   | ring                                    |       |          |
   |-----------------------------------------+-------+----------|
   | i CD normal                             | SW1/F |   Off    |
   |-----------------------------------------+-------+----------|
   | CD forced high                          | SW1/F |    On    |
   |-----------------------------------------+-------+----------|
   | i Result code display enabled in both   | SW1/G |   Off    |
   | originate and answer mode               |       |          |
   |-----------------------------------------+-------+----------|
   | Result code display enabled in          | SW1/G |    On    |
   | originate mode only                     |       |          |
   |-----------------------------------------+-------+----------|
   | i Smart mode                            | SW1/H |    On    |
   |-----------------------------------------+-------+----------|
   | Dumb mode                               | SW1/H |   Off    |
   |-----------------------------------------+-------+----------|
   | i Escape code response: modem goes      | SW1/I |   Off    |
   | on-hook, off-line command mode, returns |       |          |
   | 'NO CARRIER'                            |       |          |
   |-----------------------------------------+-------+----------|
   | Escape code response: modem stays       | SW1/I |    On    |
   | on-line, on-line command mode, returns  |       |          |
   | 'OK'                                    |       |          |
   |-----------------------------------------+-------+----------|
   | i Reset and load from profiles in NVRAM | SW1/J |   Off    |
   |-----------------------------------------+-------+----------|
   | Reset and load from factory settings in | SW1/J |    On    |
   | ROM                                     |       |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DIAGNOSTIC LED(S)                      |
   |------------------------------------------------------------|
   |   LED   | Color |  Status  |           Condition           |
   |---------+-------+----------+-------------------------------|
   |   HS    |  Red  |    On    | Modem is operating at 2400bps |
   |         |       |          |           or faster           |
   |---------+-------+----------+-------------------------------|
   |   HS    |  Red  |   Off    | Modem is operating at slower  |
   |         |       |          |         than 2400bps          |
   |---------+-------+----------+-------------------------------|
   |   AA    |  Red  |    On    |      Auto-answer enabled      |
   |---------+-------+----------+-------------------------------|
   |   AA    |  Red  |   Off    |     Auto-answer disabled      |
   |---------+-------+----------+-------------------------------|
   |   AA    |  Red  | Blinking |       Phone is ringing        |
   |---------+-------+----------+-------------------------------|
   |   CD    |  Red  |    On    |    Carrier signal detected    |
   |---------+-------+----------+-------------------------------|
   |   CD    |  Red  |   Off    |  Carrier signal not detected  |
   |---------+-------+----------+-------------------------------|
   |   OH    |  Red  |    On    |       Modem is off-hook       |
   |---------+-------+----------+-------------------------------|
   |   OH    |  Red  |   Off    |       Modem is on-hook        |
   |---------+-------+----------+-------------------------------|
   |   RD    |  Red  |    On    |    Modem is receiving data    |
   |---------+-------+----------+-------------------------------|
   |   RD    |  Red  |   Off    |  Modem is not receiving data  |
   |---------+-------+----------+-------------------------------|
   |   SD    |  Red  |    On    |  Modem is transmitting data   |
   |---------+-------+----------+-------------------------------|
   |   SD    |  Red  |   Off    |   Modem is not transmitting   |
   |         |       |          |             data              |
   |---------+-------+----------+-------------------------------|
   |   TR    |  Red  |    On    |      DTR signal is high       |
   |---------+-------+----------+-------------------------------|
   |   TR    |  Red  |   Off    |       DTR signal is low       |
   |---------+-------+----------+-------------------------------|
   |   MR    |  Red  |    On    |          Power is on          |
   |---------+-------+----------+-------------------------------|
   |   MR    |  Red  |   Off    |         Power is off          |
   |---------+-------+----------+-------------------------------|
   |   RS    |  Red  |    On    |    Modem sends RTS signal     |
   |---------+-------+----------+-------------------------------|
   |   RS    |  Red  |   Off    | RTS forced low during receive |
   |         |       |          |  data hardware flow control   |
   |---------+-------+----------+-------------------------------|
   |   CS    |  Red  |    On    |  Synchronous transmission or  |
   |         |       |          | before CTS forced low during  |
   |         |       |          |    transmit hardware flow     |
   |         |       |          |            control            |
   |---------+-------+----------+-------------------------------|
   |   CS    |  Red  |   Off    |   Modem doesn't send CTS to   |
   |         |       |          |            remote             |
   |---------+-------+----------+-------------------------------|
   |   SYN   |  Red  |    On    |   Modem in synchronous mode   |
   |---------+-------+----------+-------------------------------|
   |   SYN   |  Red  |   Off    | Modem not in synchronous mode |
   |---------+-------+----------+-------------------------------|
   |   SYN   |  Red  | Blinking |     Dial security enabled     |
   |---------+-------+----------+-------------------------------|
   | ARQ/FAX |  Red  |    On    |   Modem is connected in ARQ   |
   |         |       |          |             mode              |
   |---------+-------+----------+-------------------------------|
   | ARQ/FAX |  Red  |   Off    | Modem is not connected in ARQ |
   |         |       |          |             mode              |
   |---------+-------+----------+-------------------------------|
   | ARQ/FAX |  Red  |   Slow   |   Data being retransmitted    |
   |         |       |  blink   |                               |
   |---------+-------+----------+-------------------------------|
   | ARQ/FAX |  Red  |   Fast   |   Modem is connected in FAX   |
   |         |       |  blink   |             mode              |
   +------------------------------------------------------------+

                     Proprietary AT Command Set

           See document V2007 for a full command summary.