RAD DATA COMMUNICATIONS

CMN-C6AC, CMN-C6ACU

Card Type         Modem (asynchronous)
Chipset           Unidentified
Maximum Data Rate 19.2Kbps x 2
Data Modulation   Unidentified
Data Bus          Proprietary

[Image]

                                CONNECTIONS

          Function             Label           Function             Label

  Telephone line 1 out         CN1     Telephone line 2 out         CN3

  Serial port data 1           CN2     Serial data port 2           CN4

                        USER CONFIGURABLE SETTINGS

                  Setting                     Label         Position

  DCD forced high on modem 1                   JP1          Pins 2 & 3
                                                             closed

  DCD follows DTR on modem 1                   JP1          Pins 1 & 2
                                                             closed

  DCD forced high on modem 2                   JP2          Pins 2 & 3
                                                             closed

  DCD follows DTR on modem 2                   JP2          Pins 1 & 2
                                                             closed

  CN2 is DCE                                   SW1             Off

  CN2 is DTE                                   SW1             On

  CN4 is DCE                                   SW2             Off

  CN4 is DTE                                   SW2             On

                             DIAGNOSTIC LED(S)

     LED         Color         Status                Condition

     PWR         Green           On                 Power is on

     PWR         Green          Off                 Power is off

    XMT1         Yellow          On         Modem 1 is transmitting data

    XMT1         Yellow         Off          Modem is 1 not transmitting
                                                        data

    RCV1         Yellow          On          Modem 1 is receiving data

    RCV1         Yellow         Off        Modem 1 is not receiving data

    DCD1         Yellow          On          Carrier signal detected on
                                                       line 1

    DCD1         Yellow         Off        Carrier signal not detected on
                                                       line 1

    XMT2         Yellow          On         Modem 2 is transmitting data

    XMT2         Yellow         Off          Modem is 2 not transmitting
                                                        data

    RCV2         Yellow          On          Modem 2 is receiving data

    RCV2         Yellow         Off        Modem 2 is not receiving data

    DCD1         Yellow          On          Carrier signal detected on
                                                       line 1

    DCD1         Yellow         Off        Carrier signal not detected on
                                                       line 1

                       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 ports.