ZYXEL COMMUNICATIONS CORPORATION
================================

   U-1496E/U-1496E+

   Modem Type             Data                                    
                          (synchronous/asynchronous)/Fax/Voice    
   Maximum Data Rate      19.2Kbps                                
   Maximum Fax Rate       14.4Kbps                                
   Data Bus               External                                
   Fax Class              Class I & II                            
   Data Modulation        Bell 103A/212A                          
   Protocol                                                       
                          CCITT V.21, V.22, V.22bis, V.23,        
                          V.26bis, V.27bis, V.29, V.32, V.32bis,  
                          V.33                                    
                                                                  
                          ZyXEL 16.8Kbps, 19.2Kbps, ZyCELL        
                          4800bps-19.2Kbps cellular               
   Fax Modulation         ITU-T V.17, V.21CH2, V.27ter, V.29      
   Protocol               
   Error                  MNP2-5, V.42, V.42bis                   
   Correction/Compression 

<gopher://bitreich.org/I/th99/t/U-Z/51133-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |     Purpose      | Location |      Purpose      | Location |
   |------------------+----------+-------------------+----------|
   | Line out         |   CN1    | DC power          |   CN3    |
   |------------------+----------+-------------------+----------|
   | Line in          |   CN2    | RS-232/422        |   CN4    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DIAGNOSTIC LED(S)                      |
   |------------------------------------------------------------|
   | LED | Color |  Status  |             Condition             |
   |-----+-------+----------+-----------------------------------|
   | HS  |  Red  |    On    |   Modem is in 9600bps or faster   |
   |     |       |          |               mode.               |
   |-----+-------+----------+-----------------------------------|
   | HS  |  Red  |   Off    |  Modem is in slower than 9600bps  |
   |     |       |          |               mode.               |
   |-----+-------+----------+-----------------------------------|
   | HS  |  Red  | Blinking |    Modem is retraining speed.     |
   |-----+-------+----------+-----------------------------------|
   | AA  |  Red  |    On    |        Auto-answer enabled        |
   |-----+-------+----------+-----------------------------------|
   | AA  |  Red  |   Off    |       Auto-answer disabled        |
   |-----+-------+----------+-----------------------------------|
   | AA  |  Red  | Blinking |          Line is ringing          |
   |-----+-------+----------+-----------------------------------|
   | CD  |  Red  |    On    | Carrier signal has been detected. |
   |-----+-------+----------+-----------------------------------|
   | CD  |  Red  |   Off    |    Carrier signal has not been    |
   |     |       |          |             detected.             |
   |-----+-------+----------+-----------------------------------|
   | OH  |  Red  |    On    |         Modem is off-hook         |
   |-----+-------+----------+-----------------------------------|
   | OH  |  Red  |   Off    |         Modem is on-hook          |
   |-----+-------+----------+-----------------------------------|
   | DTR |  Red  |    On    |        DTR signal is high         |
   |-----+-------+----------+-----------------------------------|
   | DTR |  Red  |   Off    |         DTR signal is low         |
   |-----+-------+----------+-----------------------------------|
   | DSR |  Red  |    On    |        DSR signal is high         |
   |-----+-------+----------+-----------------------------------|
   | DSR |  Red  |   Off    |         DSR signal is low         |
   |-----+-------+----------+-----------------------------------|
   | CTS |  Red  |    On    |        CTS signal is high         |
   |-----+-------+----------+-----------------------------------|
   | CTS |  Red  |   Off    |         CTS signal is low         |
   |-----+-------+----------+-----------------------------------|
   | TXD |  Red  |    On    |    Modem is transmitting data     |
   |-----+-------+----------+-----------------------------------|
   | TXD |  Red  |   Off    |  Modem is not transmitting data   |
   |-----+-------+----------+-----------------------------------|
   | RXD |  Red  |    On    |      Modem is receiving data      |
   |-----+-------+----------+-----------------------------------|
   | RXD |  Red  |   Off    |    Modem is not receiving data    |
   |-----+-------+----------+-----------------------------------|
   | EC  |  Red  |    On    |   Modem is in error-correcting    |
   |     |       |          |               mode.               |
   |-----+-------+----------+-----------------------------------|
   | EC  |  Red  |   Off    | Modem is not in error-correcting  |
   |     |       |          |               mode.               |
   |-----+-------+----------+-----------------------------------|
   | SQ  |  Red  |    On    |      Signal quality is good.      |
   |-----+-------+----------+-----------------------------------|
   | SQ  |  Red  |   Off    |    Signal quality is poor; at     |
   |     |       |          |   power-up, indicates an error.   |
   |-----+-------+----------+-----------------------------------|
   | TST |  Red  |    On    |      Modem is in test mode.       |
   |-----+-------+----------+-----------------------------------|
   | TST |  Red  |   Off    |    Modem is not in test mode.     |
   +------------------------------------------------------------+

                      Proprietary Command Set

           See document V1036 for a full command summary.