
MOTOROLA, INC.

212A/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

  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

  Factory configured - do not alter             S1/1            N/A

  Automatic Call Unit returns verbose           S1/2            Off
  result codes

  Automatic Call Unit returns numeric           S1/2            On
  result codes

  Automatic Call Unit enabled                   S1/7            On

  Automatic Call Unit disabled                  S1/7            Off

  XXXT<CR> escape sequence enabled              S1/8            On

  XXXT<CR> escape sequence disabled             S1/8            Off

  Modem operates in originate mode when         S2/1            Off
  forced to manual

  Modem operates in answer mode when forced     S2/1            On
  to manual

  Switched-line mode                            S2/2            Off

  Leased-line mode                              S2/2            On

  Disconnect modem on receipt of a long         S2/3            On
  space

  Do not disconnect modem on receipt of a       S2/3            Off
  long space

  Transmit long space on disconnect             S2/4            On

  Do not transmit long space on disconnect      S2/4            Off

  Auto-answer enabled                           S2/5            On

  Auto-answer disabled                          S2/5            Off

  Disconnect on loss of carrier                 S2/6            On

  Disconnect after 18s loss of carrier          S2/6            Off

  Disconnect modem on low DTR                   S2/7            On

  Do not disconnect modem on low DTR            S2/7            Off

  Line will not be set busy during test         S2/8            Off
  modes

  Line will be set busy during test modes       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           S3/2            On
  RS-232 port is high

  Pin 25 of RS-232 port ignored                 S3/3            Off

  Analog loopback test performed when pin       S3/3            On
  25 of RS-232 port is high

  Pin 12 of RS-232 port has no function         S3/4            Off

  Pin 12 of RS-232 port high indicates          S3/4            On
  speed set to 1200bps

                       HANDSET POLARITY

       Setting               JP3                  JP4

       Normal          Pins 2 & 3 closed   Pins 2 & 3 closed

      Reversed         Pins 1 & 2 closed   Pins 1 & 2 closed

                RECEIVED CD SIGNAL

     Setting           S1/3             S1/4

   Forced low          Off              Off

   Forced high         Off               On

  Low when idle         On              Off

                     RESET TO FACTORY DEFAULTS

        Setting                 S1/3                  S1/4

   Normal operation       See above table        See above table

  Reset configuration            On                    On

                                DATA FORMAT

           Setting                     S1/5                  S1/6

    9-bit characters, async            Off                   Off
             mode

   10-bit characters, async            Off                    On
             mode

   11-bit characters, async             On                   Off
             mode

       Synchronous mode                 On                    On

                 CLOCK SOURCE

  Setting      JP6/A       JP6/B      JP6/C

   Slave       Open        Open       Closed

  Internal     Open       Closed       Open

  External    Closed       Open        Open

                   DIAGNOSTIC LED(S)

            The functions of the LEDs are unidentified.

