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PCM96FAX

VEN-TEL, INC.

PCM96FAX

Modem Type

Data (synchronous/asynchronous)

Maximum Data Rate

9600bps

Maximum Fax Rate

9600bps

Data Bus

8-bit ISA

Fax Class

Class I & II

Data Modulation Protocol

Bell 103A/212A

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

Fax Modulation Protocol

V.27ter, V.29

Error Correction/Compression

MNP5, V.42, V.42bis

BASE I/O ADDRESS SELECTION

Address

SW1/1

SW1/2

SW1/3

SW1/4

COM1: (3F8h)

Off

On

On

Off

COM2: (2F8h)

On

Off

Off

Off

COM3: (3E8h)

Off

On

On

On

COM4: (2E8h)

On

Off

Off

On

INTERRUPT SELECTION

IRQ

SW1/1

SW1/2

J1/A

J1/B

J1/C

J1/D

3

On

Off

Open

Open

Open

Open

4

Off

On

Open

Open

Open

Open

5

Off

Off

Closed

Open

Open

Open

6

Off

Off

Open

Closed

Open

Open

7

Off

Off

Open

Open

Closed

Open

SIGNAL GROUND

Function

JP2

Signal and chassis ground common

Open

Signal and chassis ground separate

Closed

Note: location of JP2 unidentified.

FACTORY CONFIGURED SETTINGS

Jumper

Setting

JP1

Unidentified

Note: location of JP1 unidentified.

Proprietary AT Command Set

BIT-MAPPED REGISTER S14

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 S21

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

   

4, 3

00

01

10

11

DTR signal normal.

Modem goes to command mode on low DTR.

Modem sends OK result code when DTR signal normal .

Modem resets on DTR signal.

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 S22

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 S23

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

110

111

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.

Local speed detected at 19200bps.

Local speed detected at 38400bps.

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.

BIT-MAPPED REGISTER S27

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

101

110

Asynchronous mode, serial port speed follows connect speed.

Error-correcting mode.

Asynchronous mode, serial port speed locked.

2

0

1

Switched line operation enabled.

Leased line operation 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=2<CR>

Description:

Selects data compression.

Command

Function

S41=0

Data compression disabled.

S41=1

Data compression enabled.

COMPRESSION

Type:

Configuration

Format:

AT %Cn

Example:

AT %C0 *Y1<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 modem port flow control.

Command

Function

\G0

Flow control disabled.

\G1

Flow control enabled.

INACTIVITY TIMER

Type:

Register

Format:

AT [cmds] \Tn [cmds]

Example:

AT\T20<CR>

Default:

0

Range:

0-255

Unit:

1 minute

Description:

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

LOOPBACK TESTS

Format

AT [cmds] S16=n [cmds]

Example:

ATS16=32<CR>

Default:

0

Range:

0 - 255

Unit:

Bit-mapped

Description:

Enables loopback tests.

Note:

Bit 3 is read-only.

Bit

Value

Function

0

0

1

Local analog loopback test disabled.

Local analog loopback test enabled.

1

0

Not used.

2

0

1

Local digital loopback test disabled.

Local digital loopback test enabled.

3

0

1

Modem is not performing remote digital loopback test.

Modem is performing remote digital loopback test.

4

0

1

Remote digital loopback test disabled.

Remote digital loopback test enabled.

5

0

1

Remote digital loopback with local self-test disabled.

Remote digital loopback with local self-test enabled.

6

0

1

Local analog loopback with local self-test disabled.

Local analog loopback with local self-test enabled.