EVEREX SYSTEMS, INC.

EMAC-MD1200 (EV-936)

Card Type                    Modem (asynchronous)
Chipset                      Unidentified
I/O Options                  Speakerphone
Maximum Data Rate            1200bps
Data Modulation              Bell 103A/212A

                             ITU-T V.21, V.22
Error Correction/Compression None
Data Bus                     Serial

[Image]

                                CONNECTIONS

           Function             Label           Function            Label

  Speakerphone button           BT1     DC power in                 CN4

  Mute button                   BT2     Microphone                  MIC

  Telephone line out            CN1     Volume control               R1

  Telephone line in             CN2     Power switch                SW2

  RS-232/422 port               CN3

                        USER CONFIGURABLE SETTINGS

                  Setting                      Label         Position

  Modem ignores DTR                            SW1/1           Off

  Modem disconnects and does not accept        SW1/1            On
  commands on low DTR; auto-answer is
  disabled

  Verbose result code format enabled.          SW1/2           Off

  Numeric result code format enabled.          SW1/2            On

  Result codes enabled                         SW1/3           Off

  Result codes disabled                        SW1/3            On

  Command echo enabled                         SW1/4           Off

  Command echo disabled                        SW1/4            On

  Auto-answer disabled                         SW1/5           Off

  Auto-answer after first ring                 SW1/5            On

  CD signal forced high                        SW1/6           Off

  CD signal normal                             SW1/6            On

  Modem is connected to RJ-11 or RJ-14         SW1/7           Off
  jack

  Modem is connected to RJ-12 or RJ-13         SW1/7            On
  jack

  Command set enabled                          SW1/8           Off

  Command set disabled                         SW1/8            On

  Modem uses Bell 212A at 1200bps              SW1/9           Off

  Modem uses ITU-T V.22 at 1200bps             SW1/9            On

                             DIAGNOSTIC LED(S)

     LED        Color        Status                 Condition

     SPL         Red           On         Modem is in speakerphone mode

     SPL         Red          Off       Modem is not in speakerphone mode

     ML          Red           On             Speakerphone is muted

     ML          Red          Off           Speakerphone is not muted

     RI          Red           On               Phone is ringing

     RI          Red          Off             Phone is not ringing

     HS          Red           On         Modem is operating at 1200bps

     HS          Red          Off         Modem is operating at 300bps

     AA          Red           On              Auto-answer enabled

     AA          Red          Off             Auto-answer disabled

     CD          Red           On            Carrier signal detected

     CD          Red          Off          Carrier signal not detected

     OH          Red           On               Modem is off-hook

     OH          Red          Off               Modem is on-hook

     RD          Red        Blinking         Modem is receiving data

     RD          Red          Off          Modem is not receiving data

     TD          Red        Blinking       Modem is transmitting data

     TD          Red          Off        Modem is not transmitting data

     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

                        SUPPORTED STANDARD COMMANDS

                             Basic AT Commands

  +++, ‘comma’, A/

  A, B, E, F, H, L, M, O, Q, V, X, Y, Z

  &C, &D, &G, &L, &P, &T

                                S-Registers

  S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S14, S18, S21,
  S22, S23, S27

            Note: See MHI help file for complete information.

                         Proprietary AT Command Set

                           TRANSMIT EQUALIZATION

  Type:               Configuration

  Format:             AT [cmds] Un [cmds]

  Description:        Selects how much transmit equalization the modem
                      will use.

       Command                             Function

         U0           Modem will use the average amount of transmit
                      equalization.

         U1           Modem will use the maximum amount of transmit
                      equalization.

         U2           Modem auto-detects correct amount of transmit
                      equalization during handshaking.

  See EVEREX SYSTEMS, INC EMAC-MD2400 (EV-945) for a full command summary.