WESTERMO TELEINDUSTRI AB

MA-44 DC

Card Type                    Modem (asynchronous)
Chip Set                     Unidentified
I/O Options                  DC power, RS-232 serial port, RS-422/485
Maximum Modem Rate           38.4Kbps
Data Modulation Protocol     C/CCITT V.24/V.28, V.11
Error Correction/Compression Unidentified
Data Bus                     External

[Image]

                                CONNECTIONS

          Function             Label           Function            Label

  Power connector (terminal     CN1     RS-232-C port               CN3
  block)

  Terminal block                CN2

                        USER CONFIGURABLE SETTINGS

                   Function                      Label       Position

  »   115V AC enabled                             S1            On

      230V AC enabled                             S1            Off

      2-wire transmission                        S2/6           On

  »   4-wire transmission                        S2/6           Off

  »   Factory configured - do not alter          S2/7           Off

  »   Factory configured - do not alter          S2/8           Off

  »   Factory configured - do not alter          S2/9           Off

                            DATA BIT SELECTION

          Setting                    S2/4                   S2/5

               9                      On                     On

  »            10                     On                     Off

               11                    Off                     On

               12                    Off                     Off

                   TERMINATION WITH FAIL-SAFE SELECTION

           Setting               S3/1       S3/2       S3/3        S3/4

       Termination (4-wire)       On         On         Off        Off

       Termination (2-wire)       Off        Off        On          On

  »       No termination          Off        Off        Off        Off

                            DATA RATE SELECTION

          Setting                 S2/1           S2/2           S2/3

             300bps               Off             Off            Off

             600bps                On             Off            Off

             1200bps              Off             On             Off

             2400bps               On             On             Off

             4800bps              Off             Off            On

  »          9600bps               On             Off            On

            19200bps              Off             On             On

            38400bps               On             On             On

                             DIAGNOSTIC LED(S)

    LED           Color          Status               Condition

    LED1       Unidentified        On                Power is on

    LED1       Unidentified        Off              Power is off

    LED2       Unidentified        On          Data is being received

    LED2       Unidentified        Off       Data is not being received

    LED3       Unidentified        On           Data carrier present

    LED3       Unidentified        Off        Data carrier not present -
                                             connection not established

    LED4       Unidentified        On        CTS signal is high - device
                                                 ready to send data

    LED4       Unidentified        Off            CTS signal is low

    LED5       Unidentified        On            RTS signal is high

    LED5       Unidentified        Off            RTS signal is low

    LED6       Unidentified        On         Data is being transmitted

    LED6       Unidentified        Off      Data is not being transmitted