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Card Type

ISDN TA

Chip Set

Unidentified

I/O Options

ISDN interface via RJ-45 connector, headphone, microphone, speaker, 25-pin serial port, power

ISDN Rate

128Kbps

ISDN Modulation Protocol

V.110, V.120, PPP

Error Correction/Compression

V.42bis

Data Bus

External

CONNECTIONS

Function

Label

Function

Label

ISDN interface (RJ-45 connector)

CN1

25-pin serial port

CN5

Speaker

CN2

Power

CN6

Microphone

CN3

Power switch

SW1

Headphone

CN4

Note: Location of test button & LED are unidentified

USER CONFIGURABLE SETTINGS

Setting

Label

Position

í Transmission channel in high impedence mode

U1

Pins 2 & 3 closed

Transmit termination set to 100Ohm

U1

Pins 1 & 2 closed

í Receive channel in high impedence mode

U2

Pins 2 & 3 closed

Receive termination set to 100Ohm

U2

Pins 1 & 2 closed

SERIAL INTERFACE SELECTION

Setting

U13

U14

U15

U16

U17

U18

U19

V.24 (RS-232)

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

V.35

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

Note: Pins designated are in the closed position. Location of jumpers is unidentified

SERIAL INTERFACE SELECTION (CONT.)

Setting

U48

U49

V.24 (RS-232)

Pins 1 & 2 closed

Pins 1 & 2 closed

V.35

Pins 2 & 3 closed

Pins 2 & 3 closed

Note: Location of jumpers is unidentified

DIAGNOSTIC LED(S)

LED

Color

Status

Condition

PWR

Green

On

Power is on

PWR

Green

Off

Power is off

DTR

Red

On

Computer is ready

DTR

Red

Off

Computer is not ready

TD

Red

On

Device is transmitting data

TD

Red

Off

Device is not transmitting data

RD

Red

On

Device is receiving data

RD

Red

Off

Device is not receiving data

EC

Red

On

Error correction enabled

EC

Red

Off

Error correction disabled

B1

Red

On

B1 channel in use

B1

Red

Off

B1 channel inactive

B1

Red

Blinking

B1 channel busy

B2

Red

On

B2 channel in use

B2

Red

Off

B2 channel inactive

B2

Red

Blinking

B2 channel busy

SUPPORTED COMMAND SET

Basic AT Commands

AT, A/

A, E, Q, V, W

&C, &R, &Z

S Registers

S3, S4, S12, S25, S26

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 (V.110 or V.120).

Command

Originate Mode

Answer Mode

N0

Connection is established at speed selected by register S37.

Connection is established by %A2 and speed selected by register S37.

í N1

Line connection speed determined by last autobaud. If the value is greater than 19.2Kbps, the connection will be established at 19.2Kbps

Negotiation set by bearer capability information sent by remote user

COMMUNICATIONS MODE

Type:

Configuration

Format:

AT [cmds] &Qn [cmds]

Description:

Selects communications mode options

Command

Mode

&Q0

Buffered asynchronous mode

&Q1

Asynchronous off-line command mode and synchronous connect mode

&Q2

Call is made from location 0 in the phone book when DTR is high. Device disconnects from ISDN network when DTR is low

&Q4

Direct mode (V.110)

COMMUNICATIONS MODE

Type:

Configuration

Format:

AT [cmds] &Mn [cmds]

Description:

Selects communications mode options

Command

Mode

&M0

Buffered asynchronous mode

&M1

Asynchronous off-line command mode and synchronous connect mode

&M2

Call is made from location 0 in the phone book when DTR is high. Device disconnects from ISDN network when DTR is low

&M4

Direct mode (V.110)

CONFIGURATION PROFILES

Type:

Immediate

Format:

AT [cmds] &V [cmds]

Description:

Displays active and stored configuration profiles

Command

Function

&V0

Displays the active profile, the 0 and 1st user configuration and the first four stored numbers

&V1

Displays the 2nd and 3rd user configuration

&V2

Displays every stored phone number

&V3

Displays the supplementary services profile

DATA COMPRESSION

Type:

Immediate

Format:

AT [cmds] &Un

Description:

Selects data compression

Command

Function

í &U0

Data compression disabled

&U1

Error corrected data compression enabled (V.120)

DATA SET READY (DSR)

Type:

Configuration

Format:

AT [cmds] &Sn [cmds]

Description:

Selects DSR options

Command

Function

í &S0

DSR forced high

&S1

DSR high only while modem is handshaking or connected

DATA TERMINAL READY (DTR)

Type:

Configuration

Format:

AT [cmds] &Dn [cmds]

Description:

Selects modem response to DTR

Command

Function

í&D0

DTR override

&D1

DTR toggle causes online command mode

&D2

Normal DTR operations

&D3

Resets on receipt of DTR

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

DS=n

Dial stored telephone number n

Dn1*n2

Dial two numbers n1, and n2 for MLPPP at 128Kbps. If the service access at 128Kbps is over a single telephone number, than make n1 equal to n2.

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

Load active profile the factory profile 0

&F1

Load active profile the factory profile 1

&F2

Load active profile the factory profile 2

&F3

Load active profile the factory profile 3

FLOW CONTROL

Type:

Configuration

Format:

AT [cmds] &Kn [cmds]

Description:

Enables flow control options

Command

Function

&K0

Flow control disabled

&K3

RTS/CTS flow control enabled

&K4

XON/XOFF flow control enabled. Modem does not transmit XON/XOFF characters received from computer to remote

&K8

Unidirectional XON/XOFF flow control enabled

&K12

XON/XOFF flow control enabled. Modem transmits XON/XOFF characters received from computer to remote

&K16

V.110 XON/XOFF flow control enabled. Flow control between local and remote modems only. Flow control between modem and computer is disabled.

&K20

V.110 XON/XOFF flow control enabled.

HOOK CONTROL

Type:

Immediate

Format:

AT [cmds] Hn [cmds]

Description:

Hangs up the TA from the ISDN network

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.

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 model

I1

Reports ROM checksum

I2

Tests and reports ROM checksum

I3

Reports revision level

I4

Display central office

RESTORE PROFILE ON POWER-UP

Type:

Configuration

Format:

AT [cmds] &Yn [cmds]

Description:

Restores a selected profile into the active profile on power-up (hard reset)

Command

Function

&Y0

Restore profile 0 on power-up

&Y1

Restore profile 1 on power-up

&Y2

Restore profile 2 on power-up

&Y3

Restore profile 3 on power-up

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

Result codes 0 - 4 enabled.

X1

Extended result codes enabled.

SOFT RESET

Type:

Immediate

Format:

AT [cmds] Zn [cmds]

Description:

Restores modem profiles previously saved in non-volatile RAM using the &W command.

Command

Function

Z0

Restore setting 0

Z1

Restore setting 1

Z2

Restore setting 2

Z3

Restore setting 3

STORE ACTIVE PROFILE

Type:

Configuration

Format:

AT [cmds] &Wn [cmds]

Description:

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

Command

Function

&W0

Write the active profile to stored profile 0

&W1

Write the active profile to stored profile 1

&W2

Write the active profile to stored profile 2

&W3

Write the active profile to stored profile 3

TEST MODES

Type:

Immediate

Format:

AT [cmds] &Tn

Description:

Selects test options

Command

Function

&T0

End current test

&T1

Begin local analog loopback test

&T3

Begin B1 channel local digital loopback

B-CHANNEL PROTOCOL

Type:

Configuration

Format:

AT [cmds] %A2=n [cmds]

Description:

Determines rate adaptation protocol on B-channel

Command

Function

í %A2=1

V.110

%A2=2

V.120

%A2=5

PPP at 64Kbps

%A2=6

MLPPP at 128Kbps

B-CHANNEL SELECTION

Type:

Configuration

Format:

AT [cmds] %A3=n [cmds]

Description:

Selects data channel

Command

Function

í %A3=2

B1 channel selected. If busy select B2 channel

%A3=3

B1 channel selected. If busy initiate hang-up

%A3=4

B2 channel selected. If busy select B1 channel

%A3=5

B2 channel selected. If busy initiate hang-up

COMMAND SET

Type:

Configuration

Format:

AT [cmds] %Vn [cmds]

Description:

Selects command set

Command

Function

%V0

AT command set

%V1

Asynchronous V.25bis command set

%V3

Synchronous V.25bis HDLC command set

COMPRESSION

Type:

Configuration

Format:

AT [cmds] %Cn [cmds]

Description:

Selects data compression

Command

Function

%C0

Data compression disabled

%C1

MNP5 enabled

DELETE RAM

Type:

Configuration

Format:

AT [cmds] /Z=0000 [cmds]

Description:

Deletes RAM and loads factory configuration 0

FAX AND ANSWERING MACHINE

Type:

Configuration

Format:

AT [cmds] /R1 [cmds]

Description:

Enables Fax and answering machine

FAX AND ANSWERING MACHINE - ANSWER

Type:

Configuration

Format:

AT [cmds] /N11 [cmds]

Description:

Sets Fax and answering machine to receive incoming call

FLASH EPROM CODE UPGRADE

Type:

Configuration

Format:

AT [cmds] %Fn [cmds]

Description:

Initiates Flash EPROM code upgrade

RESET

Type:

Configuration

Format:

AT [cmds] %Z1 [cmds]

Description:

Master reset and load the configuration specified by the &Y command

RTS FOLLOWS CTS IN OFF-LINE

Type:

Configuration

Format:

AT [cmds] %Kn [cmds]

Description:

Enables RTS to follow CTS in off-line

TEI DEFINITION

Type:

Configuration

Format:

AT [cmds] /T=nn [cmds]

Range:

00-63, 99

Unit:

ASCII

Description:

Sets TEI to a point to point value. 99 causes TEI to be variable.

CALLER ID

Type:

Configuration

Format:

AT [cmds] *In [cmds]

Description:

Controls the Caller ID function

Command

Function

*I0

Caller ID disabled

*I1

Caller ID enabled

CLOCK AVAILABILITY

Type:

Configuration

Format:

AT [cmds] *Xn [cmds]

Description:

off-line

Command

Function

í *X0

Clock available only when device is on-line

*X1

Clock always available

CTS STATUS

Type:

Configuration

Format:

AT [cmds] *Kn [cmds]

Description:

Controls CTS during handshaking in asynchronous mode.

Command

Function

í *K0

CTS on during handshaking

*K1

CTS off during handshaking

ISDN NETWORK TYPE

Type:

Immediate

Format:

AT [cmds] !C0n [cmds]

Description:

Displays type if ISDN network used. Value for Euro ISDN network must be 4

MULTISUBSCRIBER NUMBER

Type:

Configuration

Format:

AT [cmds] *Mn [cmds]

Description:

Permits the association of a maximum of 8 consecutive numbers to a BRI access of the national plan number

Command

Function

í *M0

MSN disabled

*M1

MSN enabled

STORE CALLER ID NUMBER

Type:

Configuration

Format:

AT [cmds] !N1=n [cmds]

Description:

Stores telephone number n for the caller ID function. !N1=? displays the stored telephone number.

STORE MULTISUBSCRIBER NUMBER

Type:

Configuration

Format:

AT [cmds] !N2=n [cmds]

Description:

Stores own telephone number n for the MSN. !N2=? displays the stored multisubscriber number.

STORE SUBADDRESS NUMBER

Type:

Configuration

Format:

AT [cmds] !N3=n [cmds]

Description:

Stores subaddress field with a maximum of four numbers. !N3=? displays the stored subaddress field.

SUBADDRESS

Type:

Configuration

Format:

AT [cmds] *Sn [cmds]

Description:

Identifies address of called modem

Command

Function

í *S0

Subaddress function disabled

*S1

Subaddress function enabled

AUTO ANSWER RING COUNT

Type:

Register

Format

AT [cmds] S0=n [cmds]

Range:

1-5

Unit:

1 ring

Description:

Sets the number of rings allowed before the modem automatically goes off-hook

BACKSPACE CHARACTER

Type:

Register

Format

AT [cmds] S5=n [cmds]

Range:

0-127

Unit:

ASCII

Description:

Selects a character used for backspace <BS>

BIT-MAPPED REGISTER S31

Type:

Register

Format:

AT [cmds] S31=n [cmds]

Range:

0-255

Description:

Selects V.25bis command mode

Bit

Value

Function

1,0

í 0

V.25bis asynchronous mode

7

í 0

1

V.25bis enabled

CALL WAITING TONE

Type:

Register

Format

AT [cmds] S13=n [cmds]

Range:

0-255

Unit:

1sec

Description:

Defines the duration the buzzer/TST LED will flash on new incoming call

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, 255

Speed of last connection

S37=4

600bps

S37=5

1200bps

S37=6

2400bps

S37=15

4800bps

S37=16

7200bps

S37=17

9600bps

S37=18

12.0Kbps

S37=19

14.4Kbps

S37=27

19.2Kbps

S37=50

38.4Kbps (asynchronous only)

S37=51

48.0Kbps (synchronous only)

S37=53

64.0Kbps (synchronous only)

DOUBLE CALL CHARACTER

Type:

Register

Format:

AT [cmds] S80=n [cmds]

Range:

0-255

Unit:

ASCII

Description:

Contains the character used in a double call (MLPPP)

ESCAPE CHARACTER

Type:

Register

Format

AT [cmds] S2=n [cmds]

Range:

0-127

Unit:

ASCII

Description:

Selects a character used for the escape sequence

FLOW CONTROL

Type:

Register

Format:

AT [cmds] S49=n [cmds]

Description:

Displays the value of the &K command, which specifies the DTE flow control setting

Command

Function

S49=0

No DTE flow control

S49=3

RTS/CTS flow control enabled

S49=4

Bi-directional XON/XOFF flow control enabled

S49=5

Transparent bi-directional XON/XOFF flow control enabled

NO CARRIER TIME-OUT

Type:

Register

Format

AT [cmds] S7=n [cmds]

Range:

1-255

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.

POINTER FOR CALL-BACK AND AUTOLOGON

Type:

Register

Format

AT [cmds] S34=n [cmds]

Range:

0-20, 255

Unit:

Unidentified

Description:

Establishes the memory location accessed to initiate autologon or callback procedures. 20 will cause the phonebook to scroll. 255 disables function

RING COUNT

Type:

Register

Format

AT [cmds] S1 [cmds]

Range:

1-5

Unit:

1 ring

Description:

Counts the number of ring-cycles the modem receives