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TELEPATH 33.6 FAX MODEM

GATEWAY 2000

TELEPATH 33.6 FAX MODEM

Card Type

Modem

Chip Set

Unidentified

I/O Options

Soundcard connector, serial ports (2 RJ-11), microphone jack, line in

Maximum Modem Rate

33.6Kbps

Maximum Fax Rate

14.4Kbps

Data Modulation Protocol

Bell 103A/212A, ITU-T V.21, V.22, V.22bis,V.32, V.32bis, V.34, V.FC

Fax Modulation Protocol

V.17, V.21, CH2, V.27ter, V.29

Error Correction/Compression

MNP5, V.42, V.42bis

Fax Class

Class I & II

Data Bus

8-bit ISA

Card Size

Half-length

CONNECTIONS

Function

Label

Function

Label

Cable connector to sound card

CN1

Microphone jack

CN4

RJ-11 telephone in

CN2

Line out

CN5

RJ-11 telephone out

CN3

   

SERIAL PORT ADDRESS

Setting

JP1/A

JP1/B

JP1/C

COM1 (3F8h)

Closed

Closed

Closed

í COM2 (2F8h)

Open

Closed

Closed

COM3 (3E8h)

Closed

Open

Closed

COM4 (2E8h)

Open

Open

Closed

INTERRUPT

Setting

JP2/A

JP2/B

JP2/C

JP2/D

JP2/E

IRQ2

Closed

Open

Open

Open

Open

í IRQ3

Open

Closed

Open

Open

Open

IRQ4

Open

Open

Closed

Open

Open

IRQ5

Open

Open

Open

Closed

Open

IRQ7

Open

Open

Open

Open

Closed

MISCELLANEOUS TECHNICAL NOTES

A compatible sound card is necessary in order for the Speakerphone functions to operate properly.

SUPPORTED COMMAND SET

Basic AT Commands

AT, ‘+++’, ‘comma’, A/

A, B, E, F, H, O, P, R, T, V, X, Z

&C, &D, &G, &P, &S, &T, &W, &X, &Y, &Z

S Registers

S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S18, S25, S38

 

Special Commands

#CID

Note: See MHI Help File for full command documentation.

PROPRIETARY AT COMMAND SET

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

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,

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$

Displays a list of dial commands

D;

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

D/

Delays for 125 msec before proceeding with dial string

D#

Extended touch tone pad tones

D*

Extended touch tone pad tones

REPORT INFORMATION

Type:

Immediate

Format:

AT [cmds] In [cmds]

Description:

Displays information requested

Command

Function

I0

Reports four digit product code

I1

Reports ROM checksum

I2

Reports RAM checksum

I3

Reports product type

I4

Reports current modem settings

I5

Reports nonvolatile memory settings

I6

Reports link diagnostics

I7

Reports product configuration

I11

Reports link diagnostics

SPEAKER VOLUME

Type:

Configuration

Format:

AT [cmds] Ln [cmds]

Description:

Controls speaker volume

Command

Function

L0

Low volume setting

L1

Low volume setting

L2

Medium volume setting

L3

Highest volume setting

SPEAKER MODE

Type:

Configuration

Format:

AT [cmds] Mn [cmds]

Description:

Selects various speaker options

Command

Function

M0

Speaker disabled

M2

Speaker enabled

M3

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

RESULT CODES

Type:

Configuration

Format:

AT [cmds] Qn [cmds]

Description:

Enables modem to send result codes to the DTE

Command

Function

Q0

Result code sending enabled

Q1

Result code sending disabled

Q2

Result code sending enabled only in Originate mode

POWER ON/RESET

Type:

Configuration

Format:

AT [cmds] Yn [cmds]

Description:

Selects power on/reset default configuration

Command

Function

Y0

Profile 0 in NVRAM

Y1

Profile 0 in NVRAM

Y2

Generic template (&F0)

Y3

Hardware flow control (&F1)

Y4

Software flow control (&F2)

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 modem to profile selected by Y command

Z1

Restore NVRAM setting 0

Z2

Restore NVRAM setting 1

Z3

Resets modem to factory default profile 0 (&F0)

Z4

Resets modem to factory default profile 1 (&F1)

Z5

Resets modem to factory default profile 2 (&F2)

CODE SUBSET DISPLAY

Type:

Configuration

Format:

AT [cmds] &An [cmds]

Description:

Enable or suppress the display of an additional result code subsets.

Command

Function

&A0

Do not display ARQ result codes

&A1

Display ARQ result codes

&A2

Display modulation indicators

&A3

Display error control

SERIAL PORT RATE

Type:

Configuration

Format:

AT [cmds] &Bn [cmds]

Description:

Sets serial port rate.

&B0

Variable, follows connection rate

&B1

Fixed serial port rate

&B2

Fixed in ARQ mode. Variable in non-ARQ mode

FACTORY DEFAULT PROFILE

Type:

Configuration

Format:

AT [cmds] &F [cmds]

Description:

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

&F0

Generic template

&F1

Hardware flow control template

&F2

Software flow control template

TRANSMIT DATA FLOW CONTROL

Type:

Configuration

Format:

AT [cmds] &H [cmds]

Description:

Sets transmit data flow

&H0

Flow control disabled

&H1

Hardware flow control, CTS

&H2

Software flow control, XON/XOFF

&H3

Hardware and software flow control

RECEIVE DATA FLOW CONTROL

Type:

Configuration

Format:

AT [cmds] &I [cmds]

Description:

Sets transmit data flow

&I0

Software flow control disabled

&I1

XON/XOFF signals to your modem and remote system

&I2

XON/XOFF signals to your modem only

DATA COMPRESSION

Type:

Configuration

Format:

AT [cmds] &Kn [cmds]

Description:

Enables/disables data compression

Command

Function

&K0

Data compression disabled

&K1

Auto enable/disable

&K2

Data compression enabled

&K3

MNP5 compression disabled

ERROR CONTROL

Type:

Configuration

Format:

AT [cmds] &Mn [cmds]

Description:

Selects error control 1200bps and higher

Command

Mode

&M0

Normal mode, error control disabled

&M1

Reserved

&M2

Reserved

&M3

Reserved

&M4

Normal/ARQ

&M5

ARQ mode

CONNECTION SPEED UPPER LIMIT

Type:

Configuration

Format:

AT [cmds] &Nn [cmds]

Description:

Sets required connection speed if &U is set to 0; otherwise, sets fastest allowed connection speed.

Command

Function

&N0

No maximum connect speed.

&N1

Set maximum connect speed to 300bps.

&N2

Set maximum connect speed to 1200bps.

&N3

Set maximum connect speed to 2400bps.

&N4

Set maximum connect speed to 4800bps.

&N5

Set maximum connect speed to 7200bps.

&N6

Set maximum connect speed to 9600bps.

&N7

Set maximum connect speed to 12Kbps.

&N8

Set maximum connect speed to 14.4Kbps.

&N9

Set maximum connect speed to 16.8Kbps.

&N10

Set maximum connect speed to 19.2Kbps.

&N11

Set maximum connect speed to 21.6Kbps.

&N12

Set maximum connect speed to 24Kbps.

&N13

Set maximum connect speed to 26.4Kbps.

&N14

Set maximum connect speed to 28.8Kbps.

&N15

Set maximum connect speed to 31.2Kbps.

&N16

Set maximum connect speed to 33.6Kbps.

RTS/CTS

Type:

Configuration

Format:

AT [cmds] &Rn [cmds]

Description:

Selects RTS/CTS options

Command

Function

&R0

Reserved

&R1

RTS is ignored by modem.

&R2

Received data only on RTS. Controls DSR operations

CONNECTION SPEED LOWER LIMIT

Type:

Configuration

Format:

AT [cmds] &Un [cmds]

Description:

Sets slowest allowed connection speed if &N is set to 1 or higher.

Command

Function

í &U0

No minimum connect speed.

&U1

Set minimum connect speed to 300bps.

&U2

Set minimum connect speed to 1200bps.

&U3

Set minimum connect speed to 2400bps.

&U4

Set minimum connect speed to 4800bps.

&U5

Set minimum connect speed to 7200bps.

&U6

Set minimum connect speed to 9600bps.

&U7

Set minimum connect speed to 12Kbps.

&U8

Set minimum connect speed to 14.4Kbps.

&U9

Set minimum connect speed to 16.8Kbps.

&U10

Set minimum connect speed to 19.2Kbps.

&U11

Set minimum connect speed to 21.6Kbps.

&U12

Set minimum connect speed to 24Kbps.

&U13

Set minimum connect speed to 26.4Kbps.

&U14

Set minimum connect speed to 28.8Kbps.

&U15

Set minimum connect speed to 31.2Kbps.

&U16

Set minimum connect speed to 33.6Kbps.

BREAK HANDLING

Type:

Configuration

Format:

AT [cmds] &Yn [cmds]

Description:

Sets break handling

Command

Function

&Y0

Destructive, but doesn’t sent break

&Y1

Destructive, expedited

&Y2

Nondestructive, expedited

&Y3

Reserved

 

S(STATUS) -REGISTERS

BIT-MAPPED REGISTER S13

Format:

AT [cmds] S13=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

1

Unidentified

Reset when DTR drops

1

0

1

Unidentified

Resets non-MNP transmit buffer from 1.5K to 128bytes

2

0

1

Unidentified

Set backspace key to delete

3

0

1

Unidentified

DTR signals auto dial stored in NVRAM at position 0

4

0

1

Unidentified

Power on auto dial stored in NVRAM at position 0

5

0

1

Not used

Not used

6

0

1

Not used

Not used

7

0

1

Unidentified

Disconnect on escape code

BIT-MAPPED REGISTER S15

Format:

AT [cmds] S15=n [cmds]

Range:

0-174

Description:

Bitmapped register setup.

Bit

Value

Function

0

0

1

Enable ARQ/MNP for V.22

Disable ARQ/MNP for V.22

1

0

1

Enable ARQ/MNP for V.22bis

Disable ARQ/MNP for V.22bis

2

0

1

Disable ARQ/MNP for V32/V.32bis

Disable ARQ/MNP for V32/V.32bis

3

0

1

Enable MNP handshake

Disable MNP handshake

4

0

1

Enable MNP level 4

Disable MNP level 4

5

0

1

Enable MNP level 3

Disable MNP level 3

6

0

1

Special MNP compatibility

Special MNP incompatibility

7

0

1

Enable V.42 detection phase

Disable V.42 detection phase

TOUCH TONE DIALING TEST

Format:

AT [cmds] S16=n [cmds]

Range:

0-128

Unit:

Bit-mapped register setup

Description:

Bitmapped register setup.

Bit

Value

Function

1

0

1

Touch tone dialing test disabled

Touch tone dialing test enabled

2

0

1

Internal test pattern disabled

Internal test pattern enabled

3-6

0

1

Not used

Not used

7

0

1

Watchdog reset disabled

Watchdog reset enabled

INACTIVITY TIMER

Type:

Register

Format

AT [cmds] S19=n [cmds]

Default:

0

Unit:

1 minute

Description:

Activates when there is no activity on the phone line. Modem hangs up at time-out

Note: S19=0 disables the timer and allows an indefinite duration.

MNP OR V.42 MODE DELAY

Type:

Register

Format

AT [cmds] S21=n [cmds]

Range:

Unidentified

Unit:

10ms

Description:

Sets the length of breaks sent from modem to computer.

FLOW CONTROL CHARACTER - XON

Type:

Register

Format:

AT [cmds] S22=n [cmds]

Range:

Unidentified

Unit:

ASCII

Description:

Sets the character used to represent XON

FLOW CONTROL CHARACTER - XOFF

Type:

Register

Format:

AT [cmds] S23=n [cmds]

Range:

Unidentified

Unit:

ASCII

Description:

Sets the character used to represent XOFF

DTR DELAY

Format

AT [cmds] S25=n [cmds]

Unit:

.01 second

Description:

Selects the duration that DTR must be dropped so that the modem doesn’t interpret a random glitch as a DTR loss.

BIT-MAPPED REGISTER S27

Format

AT [cmds] S27=n [cmds]

Unit:

Bit-mapped

Description:

Selects line modulation

Bit

Value

Function

0

0

1

Disables ITU-T modulation at 300bps for overseas calls; in V.21 mode, the modem answers both overseas and domestic calls but only originates V.21 calls.

Enables ITU-T modulation at 300bps for overseas calls; in V.21 mode, the modem answers both overseas and domestic calls but only originates V.21 calls.

1

0

1

Disables unencoded modulation in V.32bis mode.

Enables unencoded modulation in V.32bis mode

2

0

1

Enables V.32 modulation

Disables V.32 modulation

3

0

1

Enables 2100Hz answer tone to allow two V.42 modems to attach more quickly

Disables 2100Hz answer tone to allow two V.42 modems to attach more quickly

4

0

1

Disables V.23 fallback mode

Enables V.23 fallback mode

5

0

1

Enables V.32bis mode

Disables V.32bis mode

6

0

1

Not used

Not used

7

0

1

Software compatibility mode disabled

Software compatibility mode enabled

ANSWER TONE DISABLE

Type:

Register

Format

AT [cmds] S28=n [cmds]

Range:

0-255

Unit:

.10 second

Description:

Eliminates the V.32 answer tones for faster dialing = "0"

ANSWER MODE FALLBACK TIMER

Type:

Register

Format

AT [cmds] S29=n [cmds]

Range:

Undentified

Unit:

.10 seconds

Description:

Maximum duration of V.21/V.23 answer mode fallback timer.

VOICE PLAYBACK AUDIO LEVEL

Type:

Register

Format

AT [cmds] S31=n [cmds]

Range:

0-255

Description:

Sets voice playback audio level.

BIT-MAPPED REGISTER S32

Format:

AT [cmds] S32=n [cmds]

Range:

Unidentified

Description:

Register setup for 33.6 speed modems

Bit

Value

Function

0

0

1

V.8 call indicate disabled

V.8 call indicate enabled

1

0

1

Disables V.8 mode

Enables V.8 mode

2

0

1

Enables V.FC modulation

Disables V.FC modulation

3

0

1

Enables V.34 modulation

Disables V.34 modulation

4

0

1

Enables 33.6kbps support

Disables 33.6kbps support

5

0

1

Enables X2 support

Disables X2 support

BIT-MAPPED REGISTER S33

Format:

AT [cmds] S33=n [cmds]

Description:

Register setup for 33.6 speed modems

Bit

Value

Function

0

0

1

Enables 2400 symbol rate

Disables 2400 symbol rate

1

0

1

Enables 2743 symbol rate

Disables 2743 symbol rate

2

0

1

Enables 2800 symbol rate

Disables 2800 symbol rate

3

0

1

Enables 3000 symbol rate

Disables 3000 symbol rate

4

0

1

Enables 3200 symbol rate

Disables 3200 symbol rate

5

0

1

Enables 3429 symbol rate

Disables 3429 symbol rate

6

0

1

Not used

Not used

7

0

1

Enables shaping

Disables shaping

BIT-MAPPED REGISTER S34

Format:

AT [cmds] S34=n [cmds]

Range:

0-255

Description:

Disable/enable trellis encoding

Bit

Value

Function

0

0

1

Enable 8S-2D trellis encoding

Disable 8S-2D trellis encoding

1

0

1

Enable 16S-4D trellis encoding

Disable 16S-4D trellis encoding

2

0

1

Enable 32S-2D trellis encoding

Disable 32S-2D trellis encoding

3

0

1

Enable 64S-4D trellis encoding

Disable 64S-4D trellis encoding

4

0

1

Enable non-linear coding

Disable non-linear coding

5

0

1

Enable TX level deviation

Disable TX level deviation

6

0

1

Enable pre-emphasis

Disable pre-emphasis

7

0

1

Enable pre-coding

Disable pre-coding

BIT-MAPPED REGISTER S41

Format

AT [cmds] S41=n [cmds]

Range:

Unidentified

Unit:

Bit-mapped

Description:

Selects ringing and speakerphone mode.

Bit

Value

Function

0

0

1

Distinctive ringing disabled

Distinctive ringing enabled

2,1

00

11

Full Duplex speakerphone

Half Duplex speakerphone mode

VOICE COMMAND SET

MODE SELECTION

Type:

Immediate

Format:

AT [cmds] #CLS=n [cmds]

Description:

Selects which mode the modem will operate in.

Command

Function

#CLS=0

Modem will operate in data mode.

#CLS=1

Modem will operate in fax class I mode.

#CLS=2

Modem will operate in fax class II mode.

#CLS=8

Modem will operate in voice mode.

VOICE DEVICE

Type:

Configuration

Format:

AT [cmds] #VLS=n [cmds]

Description:

Selects the I/O device for the DSP chip.

Note:

This modem may not support all options listed below. The #VLS? command will display the available options.

Command

Function

í #VLS=0

Telephone line and handset used for voice I/O.

#VLS=1

Telephone handset used for voice I/O.

#VLS=2

Internal speaker only used for voice I/O.

#VLS=3

External microphone only used for voice I/O.

#VLS=4

Telephone line and handset used for voice I/O; internal speaker enabled.