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Card Type

Modem/Fax card

Chip Set

Unidentified

I/O Options

Line out, phone in

Maximum Modem Rate

33.6Kbps

Maximum Fax Rate

14.4Kbps

Data Modulation Protocol

Rockwell V.FC

Fax Modulation Protocol

ITU-T V.17, V.21CH2, V.27ter, V.29

Error Correction/Compression

MNP10,MNP5, V.42, V.42bis

Fax Class

Class I & II

Data Bus

8-bit ISA

Card Size

Half-length

CONNECTIONS

Function

Label

Function

Label

Line out

CN2

Phone in

CN3

SERIAL PORT ADDRESS

Setting

IRQ

JP1

JP2

JP3

JP4

JP5

JP6

COM1 (3F8h)

IRQ4

Closed

Closed

Open

Open

Closed

Open

COM2 (2F8h)

IRQ3

Open

Closed

Open

Closed

Open

Open

COM3 (3E8h)

IRQ4

Closed

Open

Open

Open

Closed

Open

COM3 (3E8h)

IRQ5

Closed

Open

Open

Open

Open

Closed

COM4 (2E8h)

IRQ3

Open

Open

Open

Closed

Open

Open

COM4 (2E8h)

IRQ2

Open

Open

Closed

Open

Open

Open

SUPPORTED COMMAND SET

Basic AT Commands

AT, �+++�, �comma�, A/

A, B, C, E, H, M, O, P, Q, R, S, T, V, W, X, Y, Z

&C, &D, &G, &L, &M, &P, &Q, &R, &V, &W, &X, &Y, &Z

Extended AT Commands

\A, \B, \G, \K

%C, %E

S Registers

S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S18, S25, S26, S30, S32, S33

S36, S38, S91, S92, S95

Special Commands

*H, -K, -Q, )M, :E

Note: See MHI Help File for full command documentation.

DIAL

Type:

Immediate

Format:

AT [cmds] D<#> [cmds]

Description:

Dials telephone number 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.

DS=n

Dial stored telephone number n

DT

Tone dialing enabled/Pulse dialing disabled

DW

Dialing resumed following dial tone detection

D!

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

D@

Wait for Quite 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;

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

SPEAKER VOLUME

Type:

Configuration

Format:

AT [cmds] Ln [cmds]

Description:

Controls speaker volume

Command

Function

L0

Low volume setting

L1

Low volume setting

í L2

Medium volume setting

L3

Highest volume setting

AUTO-MODE DETECTION

Type:

Configuration

Format:

AT [cmds] Nn [cmds]

Description:

Selects various options for the automatic detection and negotiation of protocols during the handshake process if the modem is communicating with a remote modem of dissimilar speed.

Command

Function

N0

In originate mode, handshake only at line speed designated by the S37 register.

N1

In originate mode, handshake begins at line speed designated by the S37 register. Modem can shift to a slower speed if necessary.

FACTORY DEFAULT PROFILE

Type:

Configuration

Format:

AT [cmds] &F [cmds]

Description:

Sets values in active profile to values found in the default profile

Command

Function

&F0

Sets values to factory configuration 0

&F1

Sets values to factory configuration 1

FLOW CONTROL

Type:

Configuration

Format:

AT [cmds] &Kn [cmds]

Description:

Enables flow control options

Command

Function

&K0

Flow control disabled

&K1

Reserved

&K2

Reserved

&K3

RTS/CTS flow control enabled

&K4

XON/XOFF flow control enabled

&K5

Transparent XON/XOFF flow control enabled

&K6

Hardware and software flow control enabled

DATA SET READY (DSR)

Type:

Configuration

Format:

AT [cmds] &Sn [cmds]

Description:

Selects DSR options

Command

Function

&S0

DSR forced high

&S1

DSR high only while modem is handshaking

BIT-MAPPED REGISTER S14

Format:

AT [cmds] S14=n [cmds]

Range:

0-174

Unit:

Bit-mapped

Description:

Controls echo, loopback tests, analog, digital, remote digital, and self tests.

Bit

Value

Function

0

0

Not used

1

1

Command echo enabled

3

1

Remote digital loopback in process

3

1

Remote digital loopback requested

5

0

1

R Remote digital loopback with self test enabled

6

1

Local analog loopback with self test enabled

BIT-MAPPED REGISTER S19

Format:

AT [cmds] S19=n [cmds]

Unit:

Bit-mapped

Description:

Defines options for AutoSync operation.

Bit

Value

Function

0

0

Not used

1

1

HDLC format enabled

2

1

Address detection disabled

3

1

NZI coding enabled

4

1

Flag or sync idle enabled

HDLC ADDRESS OR BSC SYNC

Format

AT [cmds] S20=n [cmds]

Range:

0-255

Unit:

Bit-mapped

Description:

Defines the HDLC address or BSC Sync character for AutoSync operation.

BIT-MAPPED REGISTER S21

Format:

AT [cmds] S21=n [cmds]

Unit:

Bit-mapped

Description:

Indicates the status of command options

Bit

Value

Function

0

0

Set by &J but otherwise not used

1

0

Not used

2

1

CTS always on (&R1)

3-4

3

DTR (&D3)

5

1

RSDL(&C1)

6

1

DSR(&S1)

7

1

Long space disconnect(&Y1)

BIT-MAPPED REGISTER S22

Format

AT [cmds] S22=n [cmds]

Range:

0-255

Unit:

Bit-mapped

Description:

Controls speaker volume and controls, limits results codes, and pulse dial make/break ratio.

Bit

Value

Function

1, 0

11

High level volume

3, 2

11

Speaker on high

DCE LINE SPEED

Type:

Register

Format

AT [cmds] S37=n [cmds]

Description:

Sets the maximum allowable data exchange rate attempted during handshake process.

Command

Function

S37=0

Speed of last connection

S37=1

300bps

S37=2

300bps

S37=3

300bps

S37=5

1200bps

S37=6

2400bps

S37=7

V.23

S37=8

4800bps

S37=9

9600bps

S37=10

12.0Kbps

S37=11

14.4Kbps

S37=12

7200bps

FLOW CONTROL

Type:

Register

Format

AT [cmds] S39? [cmds]

Description:

Displays the current flow control

Value

Meaning

0

Flow control disabled

3

RTS/CTS flow control enabled

4

XON/XOFF flow control enabled

5

Transparent XON/XOFF flow control enabled

6

XON/XOFF and RTS/CTS flow control enabled

BIT-MAPPED REGISTER S40

Format:

AT [cmds] S40=n [cmds]

Unit:

Bit-mapped

Description:

General option status

Bit

Value

Function

0-1

2

Enable extended services (-K2)

1

0

Not used

2

1

CTS always on (&R1)

3-4

3

DTR (&D3)

5

1

RSDL(&C1)

6

1

DSR(&S1)

7

1

Long space disconnect(&Y1)

BIT-MAPPED REGISTER S41

Format

AT [cmds] S41=n [cmds]

Range:

0-31

Unit:

Bit-mapped

Description:

Selects compression, auto-retrain, flow control, and MNP mode.

Bit

Value

Function

1 - 0

í 11

MNP5 and V.42bis enabled

2,6

í 0

10

Fallback/fall forward enabled

4

í 0

1

Block mode for MNP

7

í 1

Fallback to V.22bis/V22 enabled

ERROR CORRECTION/COMPRESSION

Type:

Register

Format:

AT [cmds] S46=n [cmds]

Description:

Selects active error correction and compression protocols

Command

Function

S46=136

LAP-M only, no compression

S46=138

LAP-M with V.42bis data compression

FEATURE NEGOTIATION OPTIONS

Type:

Register

Format:

AT [cmds] S48=n [cmds]

Description:

Selects active error correction and compression protocols

Command

Function

S48=0

Detection negotiation disabled, XID negotiation disabled

S48=7

Detection negotiation and XID negotiation enabled

S48=128

Fall-back to options set in S36

CONNECTION FAILURE CODES

Type:

Register

Format

AT [cmds] S86? [cmds]

Description:

Reports codes which correspond to the possible causes of a connection failure

Value

Meaning

0

Normal hang up

4

Carrier signal lost

5

No error-control detected for remote modem during feature negotiation

9

No common protocol found

12

No failure - remote modem disconnected normally

13

Remote modem failed to respond after 10 re-transmissions same message

14

Violation of negotiated protocol caused failure

TRANSMISSION LEVEL - CELLULAR

Type:

Register

Format:

AT [cmds] S201=n [cmds]

Description:

Sets the signal level for transmission

Bit

Function

0-4

Initial cellular power setting @Mn

5

Compromise equalizer enable command