
MOTOROLA, INC.

EC 212A/D

Card Type                Modem (asynchronous)
Chip Set                 Unidentified
Maximum Data Rate        1200bps
Data Bus                 External
Data Modulation Protocol Bell 212A
Error Correction         Unidentified

[Image]

                                CONNECTIONS

        Function           Label             Function              Label

  Line out                     CN1      Unidentified                 R1

  Line in                      CN2      Unidentified                SW1

  RS-232/422                   CN3

                        USER CONFIGURABLE SETTINGS

                  Setting                      Label         Position

  Chassis ground connected to signal ground     JP1          Pins 2 & 3
                                                              closed

  Chassis ground not connected to signal        JP1          Pins 1 & 2
  ground                                                      closed

  Transmit level set to -9 (permissive)         JP2          Pins 2 & 3
                                                              closed

  Transmit level set to programmable            JP2          Pins 1 & 2
                                                              closed

  Auto-dialer enabled                           S2/1            On

  Auto-dialer disabled                          S2/1            Off

  XXXT<CR> escape sequence enabled              S2/2            On

  XXXT<CR> escape sequence disabled             S2/2            Off

  Speed set to 1200bps when pin 23 of           S2/3            On
  RS-232 port is high

  Pin 23 of RS-232 port ignored                 S2/3            Off

  Analog loopback test performed when pin       S2/4            On
  25 of RS-232 port is high

  Pin 25 of RS-232 port ignored                 S2/4            Off

  Disconnect modem on receipt of a long         S3/3            On
  space

  Do not disconnect modem on receipt of a       S3/3            Off
  long space

  Do not transmit long space on disconnect      S3/4            Off

  Transmit long space on disconnect             S3/4            On

  Line will not be set busy during test         S3/5            Off
  modes

  Line will be set busy during test modes       S3/5            On

  DTR normal                                    S3/6            On

  DTR forced high                               S3/6            Off

  Disconnect after 150ms loss of carrier        S3/7            On

  Disconnect after 10s loss of carrier          S3/7            Off

  Auto-answer enabled                           S3/8            On

  Auto-answer disabled                          S3/8            Off

  DTR flow control from modem to DTE            S4/1            Off

  XON/XOFF flow control from modem to DTE       S4/1            On

  DTE to modem flow control disabled            S4/2            Off

  DTE to modem flow control enabled             S4/2            On

                       HANDSET POLARITY

       Setting               JP3                  JP4

       Normal          Pins 2 & 3 closed   Pins 2 & 3 closed

      Reversed         Pins 1 & 2 closed   Pins 1 & 2 closed

                           ERROR CORRECTION MODE

           Setting                    S3/1                   S3/2

  Error correction disabled            Off                   Off

  Error correction enabled             On                    Off

      Auto-detect error                Off                    On
         correction

      Auto-detect error                On                     On
         correction

                     FLOW CONTROL MODE - MODEM TO DTE

         Setting                   S4/3                    S4/4

    CTS flow control               Off                      Off

  XON/XOFF flow control             On                      Off

  Pin 11 of RS-232 port            Off                      On

  Pin 11 of RS-232 port             On                      On

                       RCD OPERATION

      Setting              S4/5                S4/6

       RCD on               Off                Off

      RCD off               On                 Off

  RCD follows data          Off                 On

  RCD follows data          On                  On

                                DATA FORMAT

          Setting                   S4/7                    S4/8

     7 data bits, mark               Off                     Off
          parity

     7 data bits, even               On                      Off
          parity

  7 data bits, odd parity            Off                     On

  8 data bits, no parity             On                      On

                             DIAGNOSTIC LED(S)

   LED      Color    Status                    Condition

    EC       Red       On              Error correction enabled

    EC       Red      Off              Error correction disabled

    TR       Red       On                 DTR signal is high

    TR       Red      Off                  DTR signal is low

    MR       Red       On                     Power is on

    MR       Red      Off                    Power is off

    TD       Red       On             Modem is transmitting data

    TD       Red      Off           Modem is not transmitting data

    RD       Red       On               Modem is receiving data

    RD       Red      Off             Modem is not receiving data

    HS       Red       On            Modem is operating at 1200bps

    HS       Red      Off            Modem is operating at 300bps

    CD       Red       On               Carrier signal detected

    CD       Red      Off             Carrier signal not detected

    TM       Red       On                Modem is in test mode

    TM       Red      Off              Modem is not in test mode

