
MOTOROLA, INC.

2140

Card Type             Modem (synchronous/asynchronous)
Chip Set              Unidentified
Maximum Data Rate     2400bps
Data Bus              External
Data Modulation       Unidentified
Protocol

[Image]

                                CONNECTIONS

         Function           Label             Function             Label

  Line out                      CN1       Talk/data switch          SW1

  Line in                       CN2       Power switch              SW2

  RS-232/422                    CN3       Volume                     R1

  AC power in                   CN4

                        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)          JP3         Pins 2 & 3
                                                              closed

  Transmit level set to programmable             JP3         Pins 1 & 2
                                                              closed

  Internal clock source                         S2/1            Off

  External clock source                         S2/1            On

  511 scrambler disabled                        S2/2            Off

  511 scrambler enabled                         S2/2            On

  200ms answer-back tone echo suppression       S2/3            On
  enabled

  200ms answer-back tone echo suppression       S2/3            Off
  disabled

  RTS/CTS synchronization delay set to          S2/4            On
  150ms

  RTS/CTS synchronization delay set to 25ms     S2/4            Off

  CD signal level set to -30dBm                 S2/5            Off

  CD signal level set to -45dBm                 S2/5            On

  Modem will disconnect immediately on low      S2/6            Off
  DTR

  Modem will disconnect after 60 seconds of     S2/6            On
  low DTR

  Do not squelch receiver during carrier        S2/7            Off
  detection

  Squelch receiver during carrier detection     S2/7            On

  Auto-answer enabled                           S2/8            On

  Auto-answer disabled                          S2/8            Off

  Wait for dial tone before dialing; comma      S3/1            Off
  modifier pause time normal

  Dial without waiting for dial tone; comma     S3/1            On
  modifier pause time set to 2s

  Modem will not disconnect when CD and RTS     S3/2            Off
  are idle

  Modem will disconnect after 20 seconds of     S3/2            On
  idle CD and RTS

                    HANDSET POLARITY

          Setting                       JP2

           Normal            Pins 1 & 2, 3 & 4 closed

          Reversed           Pins 1 & 3, 2 & 4 closed

                            COMMAND SET

        Setting                 S3/3                  S3/4

    UDS proprietary             Off                    Off

  V.25bis Bisync mode            On                    Off

   V.25bis HDLC mode            Off                    On

   V.25bis SDLC mode             On                    On

                 DISCONNECT DETECTION TIME

      Setting              S4/1                S4/2

      Disabled              Off                Off

   8ms disconnect           On                 Off

  90ms disconnect           Off                 On

  200ms disconnect          On                  On

                                  SPEAKER

            Setting                     S4/3                 S4/4

      On until connection                On                   Off

           Always off                    Off                  Off

       On 30 seconds after               Off                  On
           connection

           Always on                     On                   On

                           LINE EQUALIZATION

        Setting                  S4/5                    S4/6

    No equalization               Off                     On

  Normal equalization             Off                    Off

  Normal equalization             On                      On

  Maximum equalization            On                     Off

                         DISCONNECT DETECTION TIME

            Setting                    S4/7                  S4/8

   DSR follows DTR with 120ms           On                    Off
             delay

          DSR normal                    Off                   Off

        DSR forced high                 Off                   On

        DSR follows RTS                 On                    On

                             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

     RS         Red         On               RTS signal is high

     RS         Red        Off                RTS signal is low

     CS         Red         On               CTS signal is high

     CS         Red        Off                CTS signal is low

     CD         Red         On        Carrier signal has been detected

     CD         Red        Off       Carrier signal has not been detected

     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

            Note: The function of PR/TM is unidentified.

