MOTOROLA, INC.

212AT/D

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

[Image]

                                CONNECTIONS

        Function           Label             Function              Label

  Line out                     CN1      AC power in                 CN4

  Line in                      CN2      Talk/data switch            SW1

  RS-232/422                   CN3      300/1200bps switch          SW2

                        USER CONFIGURABLE SETTINGS

                   Setting                      Label        Position

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

  Transmit level set to programmable             JP2         Pins 1 & 2
                                                              closed

  Factory configured - do not alter              JP5         Pins 1 & 2
                                                              closed

  Audio circuit enabled                          JP8         Pins 1 & 2
                                                              closed

  Audio circuit disabled                         JP8         Pins 2 & 3
                                                              closed

  Modem operates in answer mode when forced     S1/1            On
  to manual

  Modem operates in originate mode when         S1/1            Off
  forced to manual

  Modem auto-detects answer/originate mode      S1/2            Off

  Manual answer/originate mode                  S1/2            On

  Line will not be set busy during test         S1/3            Off
  modes

  Line will be set busy during test modes       S1/3            On

  Disconnect after 150ms loss of carrier        S1/4            On

  Disconnect after 10s loss of carrier          S1/4            Off

  Auto-answer disabled                          S1/5            Off

  Auto-answer enabled                           S1/5            On

  Load profile indicated by &Y command on       S1/6            Off
  startup

  Load profile 0 on startup                     S1/6            On

  Disconnect modem on receipt of long space     S1/7            Off
  if indicated by Y command

  Disconnect modem on receipt of long space     S1/7            On

  Switched-line mode                            S1/8            Off

  Leased-line mode                              S1/8            On

  DTR normal                                    S2/1            Off

  DTR used for off/on hook in manual            S2/1            On
  answer/originate

  DCD normal                                    S2/2            Off

  DCD forced high                               S2/2            On

  CTS normal                                    S2/3            Off

  CTS forced high                               S2/3            On

  AT command set enabled                        S2/4            On

  AT command set disabled                       S2/4            Off

  Result code format set by V command           S2/5            Off

  Numeric result codes                          S2/5            On

  DSR normal                                    S2/6            Off

  DSR forced high                               S2/6            On

  Dumb mode uses 10-bit characters              S2/7            Off

  Dumb mode uses 11-bit characters              S2/7            On

  Sync/async mode set by &M command             S2/8            Off

  Synchronous mode                              S2/8            On

  DTR normal                                    S3/1            Off

  DTR forced high                               S3/1            On

  Pin 23 of RS-232 port ignored                 S3/2            Off

  Speed set to 1200bps when pin 23 of RS-232    S3/2            On
  port is high

  Pin 12 of RS-232 port has no function         S3/3            Off

  Pin 12 of RS-232 port high indicates speed    S3/3            On
  set to 1200bps

  Analog loopback test performed when pin 25    S3/4            On
  of RS-232 port is high

  Pin 25 of RS-232 port ignored                 S3/4            Off

                        CHASSIS GROUND

       Setting               JP1                  JP7

    Disconnected       Pins 2 & 3 closed   Pins 2 & 3 closed

      Connected        Pins 1 & 2 closed   Pins 1 & 2 closed

                       HANDSET POLARITY

       Setting               JP3                  JP4

       Normal          Pins 2 & 3 closed   Pins 2 & 3 closed

      Reversed         Pins 1 & 2 closed   Pins 1 & 2 closed

                 CLOCK SOURCE

  Setting      JP6/A       JP6/B      JP6/C

   Slave       Open        Open       Closed

  Internal     Open       Closed       Open

  External    Closed       Open        Open

                             DIAGNOSTIC LED(S)

    LED        Color      Status                  Condition

   MR/RI        Red         On                   Power is on

   MR/RI        Red        Off                  Power is off

   MR/RI        Red      Blinking             Phone is ringing

     TR         Red         On               DTR signal is high

     TR         Red        Off                DTR signal is low

     HS         Red         On          Modem is operating at 1200bps

     HS         Red        Off          Modem is operating at 300bps

     RD         Red         On             Modem is receiving data

     RD         Red        Off           Modem is not receiving data

     TD         Red         On           Modem is transmitting data

     TD         Red        Off         Modem is not transmitting data

     TM         Red         On              Modem is in test mode

     TM         Red        Off            Modem is not in test mode

            Note: The functions of MC and LED1 are unidentified.