...because we can't all be on the bleeding edge...





EMAC-MD2400 (EV-945)

EVEREX SYSTEMS, INC.

EMAC-MD2400 (EV-945)

Card Type

Modem (asynchronous)

Chipset

Unidentified

I/O Options

Speakerphone

Maximum Data Rate

2400bps

Data Modulation

Bell 103A/212A

ITU-T V.21, V.22, V.22bis

Error Correction/Compression

MNP3

Data Bus

Serial

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

í Modem ignores DTR

SW1/1

Off

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

SW1/1

On

í Verbose result code format enabled.

SW1/2

Off

Numeric result code format enabled.

SW1/2

On

í Result codes enabled

SW1/3

Off

Result codes disabled

SW1/3

On

í Command echo enabled

SW1/4

Off

Command echo disabled

SW1/4

On

USER CONFIGURABLE SETTINGS (CON’T)

Setting

Label

Position

í Auto-answer disabled

SW1/5

Off

Auto-answer after first ring

SW1/5

On

í CD signal forced high

SW1/6

Off

CD signal normal

SW1/6

On

í Modem is connected to RJ-11 or RJ-14 jack

SW1/7

Off

Modem is connected to RJ-12 or RJ-13 jack

SW1/7

On

í Command set enabled

SW1/8

Off

Command set disabled

SW1/8

On

í 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 2400bps

HS

Red

Off

Modem is operating at slower than 2400bps

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

Extended AT Commands

\B, \C, \J, \K, \N, \O, \Q, \T, \U, \V, \X, \Y, \Z

%A

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.

Not all EMAC-MD2400 modems support MNP. Those that do not will not support the Extended AT Commands line.

Proprietary AT Command Set

DIAL

Type:

Immediate

Format:

AT [cmds] D<#>;[cmds]

Description:

Dials the telephone number indicated according to any modifiers included in the string.

Note:

Any combination of modifiers can be used to produce the desired dial functions in sequence.

Command

Function

DP

Pulse dialing enabled.

DR

Answer mode enabled; originate mode disabled following handshake initiation.

DT

Tone dialing enabled.

DW

Dialing resumed following dial tone detection.

D,

Dialing paused for amount of time specified in S8 register.

D!

Flash function initiated. Modem commanded to go off-hook for specified time before returning on-hook.

D@

Wait for Quiet Answer function enabled. Modem waits until a "quiet answer," a ring-back signal followed by silence up to the time specified in S7, is received prior to executing the rest of the dial string.

D/

Dialing paused for 1/8 second.

D;

Modem returned to idle state after dialing. The semicolon can only be placed at the end of the dial command.

CALL SWITCHING

Type:

Immediate

Format:

AT [cmds] &En [cmds]

Description:

Selects whether the modem will automatically disconnect a data call if the phone is picked up.

Command

Function

í &E0

Call switching enabled.

&E1

Call switching disabled.

DISPLAY INFORMATION

Type:

Immediate

Format:

AT [cmds] In [cmds]

Description:

Displays information requested about the modem.

Command

Function

I0

Displays product identification code.

I1

Displays ROM checksum.

I2

Displays current connection speed, data bits, and parity.

I3

Displays 000 if modem is on-hook and 001 if modem is off-hook.

I4

Displays modem identification string (displayed in parentheses in model name header on MHI document).

HELP

Type:

Immediate

Format:

AT [cmds] &Hn [cmds]

Description:

Displays help on the topic indicated.

Command

Function

&H0

Displays help on AT commands.

&H1

Displays help on S-registers.

&H2

Displays help on modem result codes.

SPEED CHANGE MESSAGES

Type:

Immediate

Format:

AT [cmds] &In [cmds]

Description:

Selects whether the modem will send a "SPEED MISMATCH/PLEASE SET TO xxxx" message if the serial port speed is different than the line speed.

Command

Function

í &I0

Speed change messages enabled.

&I1

Speed change messages disabled.