VEN-TEL, INC.

MCM96FAX

Modem Type

Data (synchronous/asynchronous)/Fax

Maximum Data Rate

9600bps

Maximum Fax Rate

9600bps

Data Bus

MCA

Fax Class

Class I & II

Data Modulation Protocol

Bell 103A/212A

V.22, V.22bis, V.32

Fax Modulation Protocol

Unidentified

Error Correction/Compression

MNP5, V.42, V.42bis

Proprietary Command Set

V1145

BIT-MAPPED REGISTER

Format

AT [cmds] S14=n [cmds]

Example:

ATS14=139<CR>

Default:

171

Range:

0 - 255

Unit:

Bit-mapped

Description:

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

Bit

Value

Function

0

1

Not used.

1

0

» 1

Command echo function disabled.

Command echo function enabled.

2

» 0

1

Result code sending disabled.

Result code sending enabled.

3

0

» 1

Numeric format enabled.

Verbose format enabled.

4

0

Not used.

5

0

» 1

Tone dialing mode enabled.

Pulse dialing mode enabled.

6

» 0

1

Result codes normal.

Result codes disabled in answer mode.

7

0

» 1

Answer mode enabled.

Originate mode enabled.

BIT-MAPPED REGISTER

Format

AT [cmds] S21=n [cmds]

Example:

ATS21=1<CR>

Default:

0

Range:

0 - 255

Unit:

Bit-mapped

Description:

Controls low DTR action, DCD signal, and the Long Space Disconnect function.

Bit

Value

Function

0

0

Not used.

1

» 0

1

Profile 0 enabled.

Profile 1 enabled.

2

0

Not used.

4, 3

» 00

01

10

11

DTR signal ignored.

Modem goes to command mode on low DTR.

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

Modem is initialized on low DTR.

5

» 0

1

DCD forced high.

DCD normal.

6

» 0

1

DSR forced high.

DSR normal.

7

» 0

1

Long Space Disconnect function disabled.

Long Space Disconnect function enabled.

BIT-MAPPED REGISTER

Format

AT [cmds] S22=n [cmds]

Example:

ATS22=114<CR>

Default:

118

Range:

0 - 255

Unit:

Bit-mapped

Description:

Controls volume and speaker settings, result codes, and make/break pulse ratio.

Bit

Value

Function

1, 0

00

01

» 10

11

Lowest volume setting.

Low volume setting.

Medium volume setting

Highest volume setting.

3, 2

00

» 01

10

11

Speaker disabled.

Speaker enabled until carrier signal detected

Speaker enabled.

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

6, 5 ,4

000

100

101

110

» 111

Busy and dialtone detection disabled, result codes 0-4 enabled.

Busy and dialtone detection disabled, result codes 0-5, 10 enabled.

Busy tone detection disabled, dialtone detection enabled, result codes 0-6, 10 enabled.

Busy tone detection enabled, dialtone detection disabled, result codes 0-5, 7, 10 enabled.

Busy and dialtone detection enabled, result codes 0-7, 10 enabled.

7

0

1

39/61ms at 10pps (North America)

33/67ms at 10pps (Europe)

BIT-MAPPED REGISTER

Format

AT [cmds] S23=n [cmds]

Example:

ATS23=114<CR>

Default:

0, read-only (see note)

Range:

0 - 255

Unit:

Bit-mapped

Description:

Controls guard tones. Also indicates detected serial port speed and parity. Also provides storage for remote digital loopback tests.

Note:

All bits except bits 6 and 7 are read-only.

Bit

Value

Function

0

N/A

Reserved for internal use.

3, 2, 1

000

001

010

011

100

» 101

Local speed detected at 300bps.

Local speed detected at 600bps.

Local speed detected at 1200bps.

Local speed detected at 2400bps.

Local speed detected at 4800bps.

Local speed detected at 9600bps.

5, 4

» 00

10

11

Even parity.

Odd parity.

No parity.

7, 6

» 00

01

10

Guard tone disabled.

550Hz guard tone enabled.

1800Hz guard tone enabled.

COMPRESSION

Type:

Configuration

Format:

AT %Cn

Example:

AT %C0 #L0<CR>

Description:

Selects data compression.

Command

Function

%C0

Data compression disabled.

» %C1

Data compression enabled.

FLOW CONTROL

Type:

Configuration

Format:

AT [cmds] \Gn [cmds]

Example:

AT \G1 &K3<CR>

Description:

Selects flow control.

Command

Function

» \G0

Flow control disabled.

\G1

Flow control enabled.

ID DISPLAY

Type:

Immediate

Format:

AT [cmds] In [cmds]

Example:

AT I1 &W<CR>

Description:

Displays modem properties.

Command

Function

I0

Display product code.

I1

Display checksum.

I2

Display checksum check.

I3

Display version number.

INACTIVITY TIMER

Type:

Register

Format:

AT [cmds] \Tn [cmds]

Example:

AT\T20<CR>

Default:

0

Range:

0-255

Unit:

1 second

Description:

Sets the length of time that the modem does not receive information before it disconnects.

LOOPBACK TEST

Format

AT [cmds] S16=n [cmds]

Example:

ATS16=40<CR>

Range:

0 - 190

Unit:

Bit-mapped

Description:

Configures loopback test options.

Bit

Value

Function

0

0

1

Local analog loopback disabled.

Local analog loopback enabled.

1

0

Not used.

2

0

1

Local digital loopback disabled.

Local digital loopback enabled.

3

0

1

Remote digital loopback not in progress.

Remote digital loopback in progress.

4

0

1

Remote digital loopback disabled.

Remote digital loopback enabled.

5

0

1

Remote digital loopback with self test disabled.

Remote digital loopback with self test enabled.

6

0

1

Local analog loopback with self test disabled.

Local analog loopback with self test enabled.

7

0

Not used.

BIT-MAPPED REGISTER

Format

AT [cmds] S27=n [cmds]

Example:

ATS27=201<CR>

Default:

73

Range:

0 - 255

Unit:

Bit-mapped

Description:

Controls communications mode, line type, and protocol type.

Note:

Be aware that bits 2 and 3 are out of order.

Bit

Value

Function

3, 1, 0

000

001

101

110

Asynchronous mode, serial port speed follows connect speed.

Asynchronous off-line command mode and synchronous connect mode.

Error-correcting mode.

Asynchronous mode, serial port speed locked.

2

0

1

Switched line enabled.

Leased line enabled.

4

0

Not used.

5

0

Not used.

6

0

1

Select CCITT protocols.

Select Bell protocols.

7

0

Not used.

COMPRESSION

Type:

Register

Format:

AT [cmds] S41=n [cmds]

Example:

ATS41=201<CR>

Description:

Selects data compression.

Command

Function

S41=0

Data compression disabled.

» S41=1

Data compression enabled.