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ISDN-TA/MLP

ACEEX CORPORATION

ISDN-TA/MLP

Card Type

ISDN TA

Chip Set

Unidentified

I/O Options

AC power, power switch, 26-pin serial port, ISDN S/T interface (RJ-45)

analog telephone port (RJ-11),

ISDN Data Rate

128Kbps

ISDN Modulation Protocol

V.110, V.120, X.75, HDLC, PPP, MLPPP

Error Correction/Compression

MNP5, V.42bis

Data Bus

External

CONNECTIONS

Function

Label

Function

Label

Analog telephone interface (RJ-11 connector)

CN1

AC power

CN4

ISDN S/T interface (RJ-45 connector)

CN2

Power switch

SW1

25-pin serial port

CN3

   

Note: RJ-11 modular cable splits the analog telephone interface (CN1) into two ports.

DIAGNOSTIC LED(S)

LED

Color

Status

Condition

PR

Unidentified

On

Power is on

PR

Unidentified

Off

Power is off

SD

Unidentified

On

TA is transmitting data to a remote computer

SD

Unidentified

Off

TA is not transmitting data to a remote computer

RD

Unidentified

On

TA is receiving data from remote computer

RD

Unidentified

Off

TA is not receiving data from a remote computer

AA

Unidentified

On

Auto answer enabled

AA

Unidentified

Blinking

Phone is ringing

AA

Unidentified

Off

Auto answer disabled

A1

Unidentified

On

Telephone port 1 is active

A1

Unidentified

Blinking

Call is in progress on telephone port 1

A1

Unidentified

Off

Telephone port 1 is idle

A2

Unidentified

On

Telephone port 2 is active

A2

Unidentified

Blinking

Call is in progress on telephone port 2

A2

Unidentified

Off

Telephone port 2 is idle

LNK

Unidentified

On

ISDN S/T interface is active

LNK

Unidentified

Off

ISDN S/T interface is idle

128

Unidentified

On

MLPPP enabled

128

Unidentified

Off

MLPPP disabled

SUPPORTED COMMAND SET

Basic AT Commands

AT, A/

A, E, Q, V

&C, &F, &R, &V, &Z

S Registers

S0, S2, S3, S4, S5, S12, S25, S26, S32, S33

 

Note: See MHI Help File for full command documentation.

Proprietary AT Command Set

CHAP NEGOTIATION

Type:

Configuration

Format:

AT [cmds] &Pn [cmds]

Description:

Enables/disables CHAP negotiation

Command

Function

&P0

CHAP negotiation enabled

&P1

CHAP negotiation disabled

COMMUNICATIONS MODE

Type:

Configuration

Format:

AT [cmds] &Mn [cmds]

Description:

Selects communications mode

Command

Mode

í&M0

Asynchronous mode

&M1

Synchronous connect mode and asynchronous off-line command mode.

&M2

Synchronous connect mode

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 connected

DATA TERMINAL READY (DTR)

Type:

Configuration

Format:

AT [cmds] &Dn [cmds]

Description:

Selects modem response to DTR

Command

Mode

í&D2

Abort connection on low DTR after time specified by register S25

DIAL

Type:

Immediate

Format:

AT [cmds] D<#> [cmds]

Description:

Dials telephone number according to any modifiers included in the string

Command

Function

DT

Dials telephone number (same as ATD)

DP

Dials telephone number (same as ATD)

DS

Dial stored telephone number

FLOW CONTROL

Type:

Configuration

Format:

AT [cmds] &Kn [cmds]

Description:

Enables flow control options

Command

Function

&K0

Flow control disabled

í&K3

RTS/CTS flow control enabled

&K4

XON/XOFF flow control enabled

&K5

Transparent XON/XOFF flow control enabled

&K6

RTS/CTS & XON/XOFF flow control enabled

HOOK CONTROL

Type:

Immediate

Format:

AT [cmds] Hn [cmds]

Description:

Selects whether the modem is on-hook or off-hook

Command

Function

H0

Modem commanded to go on-hook (hang-up)

ON-LINE

Type:

Immediate

Format:

AT [cmds] On [cmds]

Description:

Controls on-line command (data transmission) state options.

Note: The O command must be placed at the end of the command string.

Command

Function

O0

On-line command mode with no retraining enabled

REPORT INFORMATION

Type:

Immediate

Format:

AT [cmds] In [cmds]

Description:

Displays information requested

Command

Function

I0

Reports product identification

I1

Reports ROM checksum

I3

Reports model function

I6

Reports product name

SELECT CALL PROGRESS RESULT CODES

Type:

Configuration

Format:

AT [cmds] Xn [cmds]

Description:

Enables selection of tone detection and associated result code format options

Command

Function

X0

Base result codes only

X1

Extended result codes enabled

X2

Extended ISDN result codes enabled

SOFT RESET

Type:

Immediate

Format:

AT [cmds] Zn [cmds]

Description:

Resets the active configuration to the stored configuration

STORE ACTIVE PROFILE

Type:

Configuration

Format:

AT [cmds] &Wn [cmds]

Description:

Writes the values for the active profile into the non-volatile RAM

V.110 LINE SPEED

Type:

Configuration

Format:

AT [cmds] Fn [cmds]

Description:

Sets the maximum allowable data exchange rate for V.110 modulation

Command

Function

F0

V.110 network baud rate follows DCE to a maximum of 38.4bps

F1

300bps

F2

1200bps

F3

2400bps

F4

4800bps

F5

9600bps

F6

19.2Kbps

F7

38.4Kpbs

Special Commands

ISDN PROTOCOL SELECTION

Type:

Configuration

Format:

AT [cmds] !Z=n [cmds]

Description:

Sets the B-channel protocol

Command

Function

!Z=5

V.120 mode enabled

!Z=6

V.110 mode enabled

!Z=9

PPP/MLPPP mode enabled

UART LINE SPEED

Type:

Configuration

Format:

AT [cmds] *Nn [cmds]

Description:

Sets the fixed maximum allowable data exchange rate for UART

Command

Function

*NA

Autobaud enabled

*N0

300bps

*N1

1200bps

*N2

2400bps

*N3

4800bps

*N4

9600bps

*N5

19.2Kbps

*N6

38.4Kpbs

*N7

57.6Kbps

*N8

76.8Kbps

*N9

115.2Kbps

*N10

7200bps

*N11

14.4Kbps

*N12

28.8Kbps

*N13

38.4Kbps

*N14

153.6Kbps

S(status) REGISTERS

BIT-MAPPED REGISTER S14

Format:

AT [cmds] S14=n [cmds]

Range:

0-174

Unit:

Bit-mapped

Description:

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

Bit

Value

Function

0

0

1

38.4Kbps extended baud rate enabled

19.2Kbps extended baud rate enabled

1

0

1

Command echo disabled

Command echo enabled

2

0

1

Result codes enabled

Result codes disabled

3

0

1

Display result codes in numeric format

Display result codes in verbose format

4

0

1

Abort code on

Abort code off

5

0

Not used

6

0

Not used

7

0 1

Answer mode enabled

Originate mode enabled

BIT-MAPPED REGISTER S21

Format

AT [cmds] S21=n [cmds]

Range:

0-253

Unit:

Bit-mapped

Description:

Selects jack type, CTS/DCD/DSR signals, low DTR action, and the long space disconnect function.

Bit

Value

Function

0

0

Not used

1

0

Not used

2

0

1

CTS forced high

CTS follows RTS

4, 3

00

01

10

DTR signal ignored

Not used

Modem disconnects on low DTR; Auto-Answer is disabled.

5

0

1

DCD forced high

DCD normal

6

0

1

DSR forced high

DSR normal

7

0

Not used

BIT-MAPPED REGISTER S23

Format

AT [cmds] S23=n [cmds]

Range:

0-189

Unit:

Bit-mapped

Description:

Controls rate and parity

Bit

Value

Function

0

0

Not used

3 - 1

000

001

010

011

100

101

110

111

Sets serial port speed to 0-300bps

Extended baud rate sets enabled

Sets serial port speed to 1200bps

Sets serial port speed to 2400bps

Sets serial port speed to 4800bps

Sets serial port speed to 9600bps

Sets serial port speed to 19.2Kbps

Sets serial port speed to 38.4Kbps

5, 4

00

01

10

11

Parity even

Space Parity

Parity odd

Mark or No Parity

7, 6

00

01

10

11

Extended baud rate set to 57.6Kbps

Extended baud rate set to 78.4Kbps

Extended baud rate set to 115.2Kbps

Register S24 enabled for rate selection

BIT-MAPPED REGISTER S24

Format

AT [cmds] S24=n [cmds]

Range:

0-189

Unit:

Bit-mapped

Description:

Sets extra baud rates

Bit

Value

Function

3 - 0

000

001

010

011

100

101

110

7200bps

14.4Kbps

28.8Kbps

153.6Kbps

230.4Kbps

460.8Kbps

921.6Kbps

6 - 4

0

Not used

7

0

1

Autobaud disabled

Autobaud enabled

BIT-MAPPED REGISTER S27

Format

AT [cmds] S27=n [cmds]

Range:

0-111

Unit:

Bit-mapped

Description:

Selects synchronous/asynchronous mode, line type, clock source, and ITU-T/Bell modes.

Bit

Value

Function

1, 0

00

01

10

11

Asynchronous mode

Synchronous connect mode and asynchronous off-line command mode

Synchronous connect mode

Synchronous connect mode

2

0

1

TA supports one number

TA supports multiple numbers

3

0

Not Used

5, 4

00

01

Local modem generates transmit clock source

Remote DCE/DTE generates transmit clock source

6, 7

0

Not Used

BIT-MAPPED REGISTER S37

Type:

Register

Format

AT [cmds] S37=n [cmds]

Unit:

Bit-mapped

Description:

Sets the maximum allowable data exchange rate for V.110 modulation

Bit

Value

Function

3 - 0

0000

0001

0010

0011

0100

0101

0110

0111

V.110 network baud rate follows DCE to maximum

300bps

1200bps

2400bps

4800bps

9600bps

19.2Kbps

38.4Kpbs

7 - 4

0

Not Used

FLOW CONTROL

Type:

Register

Format

AT [cmds] S39=n [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

RTS/CTS & XON/XOFF flow control enabled

NO CARRIER TIME-OUT

Type:

Register

Format

AT [cmds] S40=n [cmds]

Default:

5

Range:

1-60

Unit:

1 second

Description:

Maximum wait time the modem uses after dialing to detect a carrier signal from the remote modem for both originating and answering calls.

RESULT CODES

Type:

Register

Format:

AT [cmds] S22=n [cmds]

Range:

0-255

Unit:

ASCII

Description:

Provides a "bit-map" of options for result code usage

Command

Function

S22=0

Base result codes only

S22=64

Extended result codes enabled

S22=112

Extended ISDN result codes enabled

RING COUNT TIME OUT

Type:

Register

Format

AT [cmds] S54=n [cmds]

Range:

0-255

Unit:

1 ring

Description:

Sets the number of rings allowed before disconnect if auto answer is disabled.