EPSON, INC.

NEW SERIAL INTERFACE #8143

Card Type          Serial interface card
Chipset/Controller Unidentified
I/O Options        Serial interface
Maximum DRAM       N/A

[Image]

              CONNECTIONS

      Purpose            Location

  Serial Interface          CN1

                           HANDSHAKING PROTOCOL

         Function             J1       J2        J3       J4        J5

    Pull up "TTY-TXD" to      On       Off      Off       Off       Off
      +12V via 470 W

     Connect : "TTY-TXD       Off      On       Off       On        Off
     Return" to Signal
          Ground

    Pull up "TTY-RCD" to      Off      Off       On       Off       Off
      +12V via 470 W

  Pull up "DSR" and "DCD"     Off      Off      Off       Off       On
    to +12V via 4.7k W

  Note:The factory default setting for J1, J2, J3, and J4 is Off. The
  factory default setting for J5 is on.

                               DTR PROTOCOL

                 Signal                       JNOR             JREV

  »    DTR=MARK (RS232), TTY-TTD = MARK        On               Off
                (current loop)

         DTR=SPACE (RS232), TTY-TXD =          Off              On
             SPACE (current loop)

  Note:MARK = logic "1" (-3 to -27V), SPACE = logic "0" (+3 to +27V) for
  RS232C For Current loop, MARK = logic "1" (current on), SPACE = logic
  "0" (current Off).

                         INPUT DATA CONFIGURATION

             Data                       JC                    JRS

  »         RS232 level                 Off                   On

        Current loop level              On                    Off

                         OUTPUT DATA CONFIGURATION

                 Output                         JF               JX

  »     Reverse channel flag to TTY-TXD         Off              On
                (current loop)

         X-On/X-Off signal to TTY-TXD           On              Off
                (current loop)

                            DATA BIT SELECTION

               Data Bit                              SW1/2

  »                 7                                  On

                    8                                 Off

                           PARITY CONFIGURATION

        Setting            Parity check        SW1/5           SW1/6

  »        Enabled             Even             On               On

          Disabled             Odd              Off             Off

                            INTERFACE SELECTION

                Interface                               SW1/8

  »        Serial interface is valid                     On

          Parallel interface is valid                    Off

                    BIT RATE SELECTION

  Bit rate     SW1/1       SW1/3      SW1/4       SW1/7

     75         On          On          On          On

    110         On          Off         On          On

   134.5        On          On         Off          On

    150         On          Off        Off          On

    200         Off         On          On          On

    300         Off         Off         On          On

    600         Off         On         Off          On

    1200        Off         Off        Off          On

    1800        On          On          On         Off

    2400        On          Off         On         Off

    4800        On          On         Off         Off

    9600        On          Off        Off         Off

   19200        Off         On          On         Off

   19200        Off         Off         On         Off

   19200        Off         On         Off         Off

   19200        Off         Off        Off         Off