QUATECH, INC.
=============

   ES-2000/ES-3000

   Card Type          Serial controller                           
   Chipset/Controller Unidentified 16552 UART                     
   I/O Options        Serial I/O port                             
   Maximum DRAM       N/A                                         

<gopher://bitreich.org/I/th99/i/P-R/50478-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |            Purpose            |          Location          |
   |-------------------------------+----------------------------|
   | DB-62 I/O interface           |            CN1             |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   INPUT CLOCK FREQUENCY                    |
   |------------------------------------------------------------|
   |           MHz            |               J1                |
   |--------------------------+---------------------------------|
   |>> |        1.8432        | Pins 1 & 2, 3 & 6, 4 & 5 closed |
   |---+----------------------+---------------------------------|
   |   |        3.6864        |    Pins 2 & 3, 4 & 5 closed     |
   |---+----------------------+---------------------------------|
   |   |        9.216         |    Pins 1 & 2, 5 & 6 closed     |
   |---+----------------------+---------------------------------|
   |   |        18.432        |        Pins 2 & 5 closed        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              CHANNEL 1 RTS/CTS CONFIGURATION               |
   |------------------------------------------------------------|
   |             Setting             |            J2            |
   |---------------------------------+--------------------------|
   | RTS/CTS loopback configuration  | Pins 1 & 2, 3 & 4 closed |
   |---------------------------------+--------------------------|
   | RTS/CTS handshake configuration | Pins 1 & 3, 2 & 4 closed |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              CHANNEL 2 RTS/CTS CONFIGURATION               |
   |------------------------------------------------------------|
   |             Setting             |            J3            |
   |---------------------------------+--------------------------|
   | RTS/CTS loopback configuration  | Pins 1 & 2, 3 & 4 closed |
   |---------------------------------+--------------------------|
   | RTS/CTS handshake configuration | Pins 1 & 3, 2 & 4 closed |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              CHANNEL 3 RTS/CTS CONFIGURATION               |
   |------------------------------------------------------------|
   |             Setting             |            J4            |
   |---------------------------------+--------------------------|
   | RTS/CTS loopback configuration  | Pins 1 & 2, 3 & 4 closed |
   |---------------------------------+--------------------------|
   | RTS/CTS handshake configuration | Pins 1 & 3, 2 & 4 closed |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              CHANNEL 4 RTS/CTS CONFIGURATION               |
   |------------------------------------------------------------|
   |             Setting             |            J5            |
   |---------------------------------+--------------------------|
   | RTS/CTS loopback configuration  | Pins 1 & 2, 3 & 4 closed |
   |---------------------------------+--------------------------|
   | RTS/CTS handshake configuration | Pins 1 & 3, 2 & 4 closed |
   +------------------------------------------------------------+

   +---------------------------------------------------------------+
   |                  HALF DUPLEX CHANNEL SELECT                   |
   |---------------------------------------------------------------|
   |Channel| J6/A | J6/B | J6/C | J6/D | J6/E | J6/F | J6/G | J6/H |
   |-------+------+------+------+------+------+------+------+------|
   |   1   |Closed| Open | Open | Open | Open | Open | Open | Open |
   |-------+------+------+------+------+------+------+------+------|
   |   2   | Open |Closed| Open | Open | Open | Open | Open | Open |
   |-------+------+------+------+------+------+------+------+------|
   |   3   | Open | Open |Closed| Open | Open | Open | Open | Open |
   |-------+------+------+------+------+------+------+------+------|
   |   4   | Open | Open | Open |Closed| Open | Open | Open | Open |
   |-------+------+------+------+------+------+------+------+------|
   |   5   | Open | Open | Open | Open |Closed| Open | Open | Open |
   |-------+------+------+------+------+------+------+------+------|
   |   6   | Open | Open | Open | Open | Open |Closed| Open | Open |
   |-------+------+------+------+------+------+------+------+------|
   |   7   | Open | Open | Open | Open | Open | Open |Closed| Open |
   |-------+------+------+------+------+------+------+------+------|
   |   8   | Open | Open | Open | Open | Open | Open | Open |Closed|
   +---------------------------------------------------------------+