RAD DATA COMMUNICATIONS

CMN-C11

Card Type         Modem (asynchronous)
Chipset           Unidentified
Maximum Data Rate 19.2Kbps
Data Modulation   Unidentified
Data Bus          Proprietary

[Image]

                                CONNECTIONS

          Function             Label            Function            Label

  Serial data port              CN1     Loopback test switch        SW4

  Telephone line out            CN2

                        USER CONFIGURABLE SETTINGS

                  Setting                      Label         Position

  Front panel switch may initiate remote        JP1          Pins 1 & 2
  loopback test                                               closed

  Front panel switch may not initiate           JP1          Pins 3 & 4
  remote loopback test                                        closed

  Stop bit shortening for asynchronous mode    SW1/1            Off
  set to 12.5%

  Stop bit shortening for asynchronous mode    SW1/1            On
  set to 25%

  DCD forced high                              SW1/4            On

  DCD follows RTS                              SW1/4            Off

  Pin 18 of CN1 has no function                SW1/5            Off

  Pin 18 of CN1 begins local analog            SW1/5            On
  loopback test

  Pin 21 of CN1 has no function                SW1/6            Off

  Pin 21 of CN1 begins remote digital          SW1/6            On
  loopback test

  CN1 is DCE                                    SW3             Off

  CN1 is DTE                                    SW3             On

        RTS TO CTS DELAY SELECTION

  Setting    JP2/A      JP2/B      JP2/C

   0 mS      Closed      Open      Open

   8 mS       Open      Closed     Open

   68 mS      Open       Open     Closed

     DATA LENGTH SELECTION

  Setting    SW1/2      SW1/3

  8 bits      Off        Off

  9 bits      Off        On

  10 bits      On        Off

  11 bits      On        On

    LINE SPEED SELECTION

   Setting         SW2

   1200bps     Position 7

   2400bps     Position 6

   3600bps     Position 5

   4800bps     Position 4

   7200bps     Position 3

   9600bps     Position 2

   14.4Kbps    Position 1

   19.2Kbps    Position 0

                          DIAGNOSTIC LED(S)

    LED        Color      Status               Condition

    PWR        Green        On                Power is on

    PWR        Green        Off               Power is off

    XMT       Yellow        On         Modem is transmitting data

    XMT       Yellow        Off      Modem is not transmitting data

    RCV       Yellow        On          Modem is receiving data

    RCV       Yellow        Off       Modem is not receiving data

    DCD       Yellow        On          Carrier signal detected

    DCD       Yellow        Off       Carrier signal not detected

    TST         Red         On           Modem is in test mode

    TST         Red         Off        Modem is not in test mode

                       MISCELLANEOUS TECHNICAL NOTE

  This card is intended for use in the CMN-16 rack-mount system. The bus
  is used only for supplying power for the card. All other card functions
  are accessed through the serial port.