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Card Type

Fax, Modem (synchronous/asynchronous), Network Interface Card

Chip Set

Rockwell

I/O Options

Line in (RJ-11), RJ-45 UTP connector

NIC Type

Ethernet

Maximum Modem Rate

33.6Kbps

Maximum Fax Rate

14.4Kbps

Data Bus

PCMCIA

Fax Class

Class I & II

Data Modulation Protocol

ITU-T V.21, V.22, V.23, V.32, V.32bis, V.34

Fax Modulation Protocol

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

Error Correction/Compression

MNP5, V.42, V.42bis

Topology

Star

Wiring Type

RJ-45 Unshielded twisted pair

SUPPORTED COMMAND SET

Basic AT Commands

AT, A/

A, B, C, E, H, L, O, Q, V, W, X, Y, Z

&C, &F, &G, &J, &K, &M,&L, &P, &Q, &T, &W, &X, &Y, &Z

Extended AT Commands

\A, \G, \J, \K, \L, \N

%C, %E, %L

)M

*H

-Q

V.25bis Command Set

CIC, CRS, DIC, PRN, RLD, RLF, RLI

S Registers

S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S16, S18, S21, S24, S25, S26, S27

S28, S29, S30, S32, S33, S38, S91, S92, S95, S99

Note: See MHI Help file for full command documentation.

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

Auto-mode detection disabled

íN1

.Auto-mode detection enabled

DATA TERMINAL READY (DTR)

Type:

Configuration

Format:

AT [cmds] &Dn [cmds]

Description:

Selects modem response to DTR

&Q Setting

&D0

&D1

&D2

&D3

&Q0, &Q5, &Q6

Command 0

Command 1

Command 1

Command 3

&Q1, &Q4

Command 1

Command 1

Command 1

Command 3

&Q2, &Q4

Command 2

Command 2

Command 2

Command 2

Command

Function

Command 0

Modem does not respond to DTR

Command 1

Modem goes to command mode after DTR goes is off

Command 2

Modem goes to command mode and disconnects (hangs up) after DTR goes off; Auto-Answer is disabled.

Command 3

Modem is initialized after DTR goes off

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

DL

Re-dial last number

DP

Pulse dialing enabled

DK

Power level adjustment during MNP link negotiation (for this call only; see Mn)

DJ

Perform MNP 10 link negotiation at highest supported speed

DS=n

Dial stored telephone number n

DT

Tone dialing enabled/Pulse dialing disabled

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 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.

D^

Calling tone transmission disabled

D>

If enabled by country specific parameter; modem generates a grounding pulse on the GND output

MODULATION SELECTION

Type:

Configuration

Format:

AT [cmds] Fn [cmds]

Description:

Sets options for active protocol. Command conflicts with S37 and Nn. To select line modulation, use either Fn or a combination of S37 and Nn.

Command

Function

F0

Auto detect mode enabled

F1

V.21 or Bell 103

F3

V.23

F4

V.22 or Bell 212/A

F5

V.22bis at 1200bps

F6

V.32bis at 4800bps, V.32 at 4800bps

F7

V.32bis at 7200bps

F8

V.32, V.32bis at 9600

F9

V.32bis at 1200bps

F10

V.32bis at 14,4Kbps

F13

V.34 14.4Kbps

F14

V.34 at 16.8Kbps

F15

V.34 at 19.2Kbps

F16

V.34 at 21.6Kbps

F17

V.34 at 24.0Kbps

F18

V.34 at 26.4Kbps

F19

V.34 at 28.8Kbps

Note: Commands for >28.8Kbps are unidentified

REPORT INFORMATION

Type:

Immediate

Format:

AT [cmds] In [cmds]

Description:

Displays information requested

Command

Function

I0

Reports modem model and speed

I1

Reports ROM checksum

I6

Reports data connection information

SPEAKER MODE

Type:

Configuration

Format:

AT [cmds] Mn [cmds]

Description:

Selects various speaker options

Command

Function

M0

Speaker disabled

íM1

Speaker enabled until carrier signal detected

M3

Speaker enabled following dialing, then disabled after carrier signal detected.

TRANSMIT CARRIER

Type:

Configuration

Format:

AT [cmds] Cn [cmds]

Description:

Controls the transmit carrier switching

Command

Function

C1

Transmit carrier enabled

MNP - EXTENDED SERVICES

Type:

Configuration

Format:

AT [cmds] -Kn [cmds]

Description:

Selects MNP extended services

Command

Function

-K0

MNP extended services disabled

-K1

MNP extended services enabled

TEST MODE - PTT

Type:

Immediate

Format:

AT [cmds] %TTn [cmds]

Description:

Send PTT test signals for a line tests

Command

Function

%TT00-%TT009

DTMF tone dial digits 0-9

%TT0A

DTMF digit *

%TT0B

DTMF digit A

%TT0C

DTMF digit B

%TT0D

DTMF digit C

%TT0E

DTMF digit #

%TT0F

DTMF digit D

%TT10

V.21 channel 1 mark symbol

%TT11

V.21 channel 2 mark symbol

%TT12

V.23 backward channel mark symbol

%TT13

V.23 forward channel mark symbol

%TT14

V.22 originate mode at 600bps

%TT15

V.22 originate mode at 1200bps

%TT16

V.22bis originate mode at 2400bps

%TT17

V.22 answer mode

%TT18

V.22bis answer mode

%TT19

V.21 channel 1 space symbol

%TT20

V.32 at 9600bps

%TT21

V.32bis at 14.4Kbps

%TT22

V.17 at 14.4Kbps

%TT1A

V.21 channel 2 space symbol

%TT1B

V.23 backward channel

%TT1C

V.23 forward channel space symbol

%TT1E

V.29 carrier

%TT30

Off-hook

V.25 answer tone

%TT32

1800Hz guard tone

%TT33

V.25 calling tone

%TT34

Fax calling tone

%TT40

V.21 channel 2

%TT50

V.34 14.4Kpbs

%TT51

V.34 16.8Kbps

V.34 19.2Kbps

%TT53

V.34 21.6Kbps

%TT54

V.34 24.0Kbps

%TT55

V.34 26.4Kbps

%TT56

V.34 28.8Kpbs

BIT-MAPPED REGISTER S14

Format:

AT [cmds] S14=n [cmds]

Range:

0-174

Unit:

Bit-mapped

Description:

Controls echo, result codes and display, dial mode, and answer/originate mode.

Bit

Value

Function

0

0

Not used

1

1

Command echo enabled

2

1

Result codes disabled

3

1

Display result codes in verbose format

4

0

Not used

5

1

Pulse dial enabled

6

0

Not used

7

0 1

Originate mode enabled

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 during handshake

6 - 4

111

All result codes enabled

7

0

Reserved

BIT-MAPPED REGISTER S23

Format

AT [cmds] S23=n [cmds]

Range:

0-189

Unit:

Bit-mapped

Description:

Grants/denies remote digital loopback, controls DTE rate and parity, and sets guard tone.

Bit

Value

Function

0

1

Remote digital loopback allowed

3 - 1

110

Sets serial port speed to 19200bps

5, 4

11

Mark or No Parity

7, 6

10

Guard tone 1800Hz enabled

BIT-MAPPED REGISTER S31

Format:

AT [cmds] S31=n [cmds]

Range:

0-10

Description:

Select automode and extended result code format.

Bit

Value

Function

0

0

Reserved

1

1

Auto-mode detection enabled

BIT-MAPPED REGISTER S40

Format

AT [cmds] S40=n [cmds]

Range:

0-255

Unit:

Bit-mapped

Description:

Controls power level and break handling; selects MNP extended services, link negotiation, and block size.

Bit

Value

Function

0

1

MNP Extended Services enabled

1

1

Fallback to V.22bis/V.22 enabled

2

1

Power level force adjustment enabled

5, 4, 3

101

AT\K5

7, 6

11

MNP block size is 256 characters

BIT-MAPPED REGISTER S201

Format

AT [cmds] S201=n [cmds]

Range:

0-255

Unit:

Bit-mapped

Description:

Controls initial cellular power level and compromise equalizer.

Bit

Value

Function

0-4

0-?

Sets initial cellular power level (default=20h)

5

1

Compromise equalizer enabled

BREAK OPTIONS

Type:

Register

Format

AT [cmds] S82=n [cmds]

Description:

Sets the method for break transmission during error-control and ASB connections.

Command

Function

S82=3

Expedited signaling, immediately send timed break

S82=7

Destructive signaling, buffers cleared, immediately send timed break

S82=128

In-sequence signaling, timed break sent in sequence with transmitted data

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

6

Remote modem failed to respond to feature negotiation

7

Local modem is asynchronous-only, remote modem is synchronous-only

8

No common framing technique found

9

No common protocol found

10

Remote modem sent erroneous feature negotiation message

11

Remote modem failed to send synchronous information

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

DCE LINE SPEED

Type:

Register

Format

AT [cmds] S37=n [cmds]

Description:

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

S37=1-4

Reserved

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

S37=15

V.34 at 14.4Kbps

S37=16

V.34 at 16.8Kpbs

S37=17

V.34 at 19.2Kbps

S37=18

V.34 at 21.6Kpbs

S37=19

V.34 at 24.0Kbps

S37=20

V.34 at 26.4Kbps

S37=21

V.34 at 28.8Kbps

ERROR CORRECTION/COMPRESSION

Type:

Register

Format:

AT [cmds] S46=n [cmds]

Description:

Selects active error correction and compression protocols

S46=136

Error correction only, no compression

S46=138

Error correction with data compression

ERROR CORRECTION NEGOTIATION

Type:

Register

Format

AT [cmds] S36=n [cmds]

Description:

Selects the action of the modem if it fails to connect with the error-correction protocol set in &Q.

Command

Function

S36=0

Hang up

S36=1

Attempt a direct connection

S36=3

Attempt a buffered connection

S36=4

Attempt a connection at MNP2-4; if that fails, hang up.

S36=5

Attempt a connection at MNP2-4; if that fails, attempt a direct connection.

S36=6

Attempt a connection at MNP2-4; if that fails, hang up.

S36=7

Attempt a connection at MNP2-4; if that fails, attempt a buffered connection.

FEATURE NEGOTIATION OPTIONS

Type:

Register

Format:

AT [cmds] S48=n [cmds]

Description:

Selects active error correction and compression protocols

Command

Function

S48=0

Negotiation disabled

S48=7

Negotiation enabled

S48=128

Fall-back to options set in S36

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

Hardware and software flow control enabled

CALL REQUEST WITH NUMBER AND IDENTIFICATION

Type:

Immediate

Format:

CRI

Description:

Dials the numbers given. (;) is inserted between the dial string and identification.

CALL REQUESTED NUMBER

Type:

Immediate

Format:

CRN<#>

Description:

Dials the number given; it will ignore spaces and hyphens in the string; if the string is more than fifty characters long, a result of INV will be returned.

Command

Function

CRNP

Pulse dialing enabled

CRNT

Tone dialing enabled/Pulse dialing disabled

CRN<

Dialing paused for amount of time specified in S8 register

CRN=

Dialing paused for twice as long as short pause

CRN:

Wait for dial tone

CRN&

Flash function initiated. Modem commanded to go on-hook for time specifies by S30 register

CRN^

Calling tone transmission disabled

PROGRAM IDENTIFICATION

Type:

Configuration

Format:

PRI

Description:

Modem returns the VAL message