QUATECH, INC.

QS-1000

Category               I/O Controller
Chipset Controller     16550 UART
I /O Options Supported Serial ports (4)
Maximum Onboard Memory N/A

[Image]

                                CONNECTIONS

         Purpose           Location           Purpose           Location

  Serial port 1 - RJ-11      CN1       Serial port 3 - RJ-11      CN3

  Serial port 2 - RJ-11      CN2       Serial port 4 - RJ-11      CN4

                        INPUT CLOCK FREQUENCY

             Frequency                             J1

            ê 1.8432MHz             Pins 1 & 2, 4 & 5, 3 & 6 closed

             18.432MHz                     Pins 2 & 5 closed

             9.216MHz                   Pins 2 & 3, 4 & 5 closed

             3.6864MHz                  Pins 1 & 2, 5 & 6 closed

                         PORT 1 HANDSHAKE OPTIONS

                Setting                                J2

  RTS/CTS handshake, DTR/DSR loopback    Pins 1 & 2, 4 & 5, 3 & 6 closed

  RTS/CTS loopback, DTR/DSR handshake    Pins 1 & 4, 2 & 3, 5 & 6 closed

  RTS/CTS loopback, DTR/DSR loopback        Pins 1 & 4, 3 & 6 closed

                         PORT 2 HANDSHAKE OPTIONS

                Setting                                J3

  RTS/CTS handshake, DTR/DSR loopback    Pins 1 & 2, 4 & 5, 3 & 6 closed

  RTS/CTS loopback, DTR/DSR handshake    Pins 1 & 4, 2 & 3, 5 & 6 closed

  RTS/CTS loopback, DTR/DSR loopback        Pins 1 & 4, 3 & 6 closed

                         PORT 3 HANDSHAKE OPTIONS

                Setting                                J4

  RTS/CTS handshake, DTR/DSR loopback    Pins 1 & 2, 4 & 5, 3 & 6 closed

  RTS/CTS loopback, DTR/DSR handshake    Pins 1 & 4, 2 & 3, 5 & 6 closed

  RTS/CTS loopback, DTR/DSR loopback        Pins 1 & 4, 3 & 6 closed

                         PORT 4 HANDSHAKE OPTIONS

                Setting                                J5

  RTS/CTS handshake, DTR/DSR loopback    Pins 1 & 2, 4 & 5, 3 & 6 closed

  RTS/CTS loopback, DTR/DSR handshake    Pins 1 & 4, 2 & 3, 5 & 6 closed

  RTS/CTS loopback, DTR/DSR loopback        Pins 1 & 4, 3 & 6 closed