MAXTECH 9424H

MAXTECH CORPORATION

MAXTECH 9424H

Card Type

Modem(asynchronous)

Chip Set

Unidentified

Maximum Data Rate

2400bps

Maximum Fax Rate

9600bps

Data Bus

8 bit ISA

Fax Class

Class I

Data Modulation Protocol

Bell 103A/212A

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

Fax Modulation Protocol

ITU-T V.21CH2, V.27ter, V.29

Error Correction/Compression

MNP5, V.42, V.42bis

CONNECTIONS

Function

Label

Function

Label

Line in

CN1

Line out

CN2

SERIAL PORT ADDRESS

Setting

J1

J2

COM1 (3F8h)

Pins 1 & 2 closed

Pins 1 & 2 closed

COM2 (2F8h)

Pins 2 &3 closed

Pins 1 & 2 closed

COM3 (3E8h)

Pins 1 & 2 closed

Pins 2 &3 closed

COM4 (2E8h)

Pins 2 &3 closed

Pins 2 &3 closed

INTERRUPT

Setting

J3

J4

J5

J6

2

On

Off

Off

Off

3

Off

On

Off

Off

4

Off

Off

On

Off

5

Off

Off

Off

On

Proprietary AT Command Set

BIT-MAPPED REGISTER S14

Format

AT [cmds] S14=n [cmds]

Default:

170

Range:

0 - 174

Unit:

Bit-mapped

Description:

Controls command echo, result codes, dialing mode, and answer/originate mode

Bit

Value

Function

0

0

Not used

1

0

í 1

Command echo off

Command echo on

2

í 0

1

Result codes enabled

Result codes disabled

3

0

í 1

Numeric result codes

Verbose result codes

4

0

Not used

5

0

í 1

Tone dialing selected

Pulse dialing selected

6

0

Not used

7

0

í 1

Answer mode selected

Originate mode selected

BIT-MAPPED REGISTER S21

Format

AT [cmds] S21=n [cmds]

Default:

0

Range:

0 - 249

Unit:

Bit-mapped

Description:

Selects jack type, low DTR action, DCD signal, DSR signal, and the Long Space Disconnect function

Bit

Value

Function

0

í 0

1

Selects RJ-11jack

Selects RJ-12 or RJ-13 jack

1

0

Not used

2

0

Not used

4, 3

í 00

01

10

11

DTR signal ignored

Modem goes to command mode on low DTR

Modem disconnects on low DTR

Modem is initialized on low DTR

5

í 0

1

DCD forced high

DCD normal

6

í 0

1

DSR forced high

DSR normal

7

í 0

1

Long Space Disconnect function disabled

Long Space Disconnect function enabled

BIT-MAPPED REGISTER S22

Format

AT [cmds] S22=n [cmds]

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

í 01

10

11

Not used

Low volume setting

Medium volume setting

Highest volume setting

3, 2

00

í 01

10

11

Speaker disabled

Speaker enabled until carrier signal detected

Speaker enabled

Speaker off during dialing

6, 5 ,4

000

001

010

011

100

101

110

í 111

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

Not used

Not used

Not used

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, all result codes enabled

7

í 0

1

39/61ms at 10pps (North America)

33/67ms at 10pps (Europe)

BIT-MAPPED REGISTER S23

Format

AT [cmds] S23=n [cmds]

Default:

7

Range:

0-247

Unit:

Bit-mapped

Description:

Grants/denies remote digital loopback, connect speed, parity and guard tone

Bit

Value

Function

0

0

í 1

Remote digital loopback denied

Remote digital loopback allowed

2, 1

00

01

10

í 11

Connect at 0-300bps

Not used

Connect at 1200bps

Connect at 2400bps

3

0

Not used

5,4

í 00

01

10

11

Parity even

Space parity

Parity odd

No Parity

7, 6

í 00

01

10

11

Guard tone disabled

Guard tone 550Hz enabled

Guard tone 1800Hz enabled

Not used

BIT-MAPPED REGISTER S27

Format:

AT [cmds] S27=n [cmds]

Default:

64

Range:

0-127

Description:

Asynchronous operation, leased/switched line, ITU-U/Bell operation

Bit

Value

Function

3, 1, 0

í 0x00

Asynchronous operation

2

í 0

1

Switched line

Leased line

4

0

Not used

5

0

Not used

6

0

í 1

V.21/V.22

Bell 212A

TEST STATUS

Format

AT [cmds] S16=n [cmds]

Default:

0

Range:

0 - 122

Unit:

Bit-mapped

Description:

Contains status of loopback tests

Bit

Value

Function

0

í 0

1

Local analog loopback test disabled

Local analog loopback test enabled

1

0

Not used

2

í 0

1

Local digital loopback test disabled

Local digital loopback test enabled

3

í 0

1

Remote digital loopback test disabled

Remote digital loopback test enabled

4

í 0

1

Remote digital loopback test not in progress

Remote digital loopback test in progress

5

í 0

1

Remote digital loopback test with test and error disabled

Remote digital loopback test with test and error enabled

6

í 0

1

Local digital loopback test with self test disabled

Local digital loopback test with self test enabled

Card Type	Modem(asynchronous)
Chip Set	Unidentified
Maximum Data Rate	2400bps
Maximum Fax Rate	9600bps
Data Bus	8 bit ISA
Fax Class	Class I
Data Modulation Protocol	Bell 103A/212A ITU-T V.21, V.22, V.22bis
Fax Modulation Protocol	ITU-T V.21CH2, V.27ter, V.29
Error Correction/Compression	MNP5, V.42, V.42bis

CONNECTIONS
Function	Label		Function		Label
Line in		CN1		Line out		CN2

SERIAL PORT ADDRESS
Setting	J1	J2
COM1 (3F8h)	Pins 1 & 2 closed	Pins 1 & 2 closed
COM2 (2F8h)	Pins 2 &3 closed	Pins 1 & 2 closed
COM3 (3E8h)	Pins 1 & 2 closed	Pins 2 &3 closed
COM4 (2E8h)	Pins 2 &3 closed	Pins 2 &3 closed

INTERRUPT
Setting	J3	J4	J5	J6
2	On	Off	Off	Off
3	Off	On	Off	Off
4	Off	Off	On	Off
5	Off	Off	Off	On

BIT-MAPPED REGISTER S14
Format		AT [cmds] S14=n [cmds]
Default:		170
Range:		0 - 174
Unit:		Bit-mapped
Description:		Controls command echo, result codes, dialing mode, and answer/originate mode
Bit	Value	Function
0	0	Not used
1	0 í 1	Command echo off Command echo on
2	í 0 1	Result codes enabled Result codes disabled
3	0 í 1	Numeric result codes Verbose result codes
4	0	Not used
5	0 í 1	Tone dialing selected Pulse dialing selected
6	0	Not used
7	0 í 1	Answer mode selected Originate mode selected

BIT-MAPPED REGISTER S21
Format		AT [cmds] S21=n [cmds]
Default:		0
Range:		0 - 249
Unit:		Bit-mapped
Description:		Selects jack type, low DTR action, DCD signal, DSR signal, and the Long Space Disconnect function
Bit	Value	Function
0	í 0 1	Selects RJ-11jack Selects RJ-12 or RJ-13 jack
1	0	Not used
2	0	Not used
4, 3	í 00 01 10 11	DTR signal ignored Modem goes to command mode on low DTR Modem disconnects on low DTR Modem is initialized on low DTR
5	í 0 1	DCD forced high DCD normal
6	í 0 1	DSR forced high DSR normal
7	í 0 1	Long Space Disconnect function disabled Long Space Disconnect function enabled

BIT-MAPPED REGISTER S22
Format		AT [cmds] S22=n [cmds]
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 í 01 10 11	Not used Low volume setting Medium volume setting Highest volume setting
3, 2	00 í 01 10 11	Speaker disabled Speaker enabled until carrier signal detected Speaker enabled Speaker off during dialing
6, 5 ,4	000 001 010 011 100 101 110 í 111	Busy and dialtone detection disabled, result codes 0-4 enabled Not used Not used Not used 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, all result codes enabled
7	í 0 1	39/61ms at 10pps (North America) 33/67ms at 10pps (Europe)

BIT-MAPPED REGISTER S23
Format		AT [cmds] S23=n [cmds]
Default:		7
Range:		0-247
Unit:		Bit-mapped
Description:		Grants/denies remote digital loopback, connect speed, parity and guard tone
Bit	Value	Function
0	0 í 1	Remote digital loopback denied Remote digital loopback allowed
2, 1	00 01 10 í 11	Connect at 0-300bps Not used Connect at 1200bps Connect at 2400bps
3	0	Not used
5,4	í 00 01 10 11	Parity even Space parity Parity odd No Parity
7, 6	í 00 01 10 11	Guard tone disabled Guard tone 550Hz enabled Guard tone 1800Hz enabled Not used

BIT-MAPPED REGISTER S27
Format:			AT [cmds] S27=n [cmds]
Default:			64
Range:			0-127
Description:			Asynchronous operation, leased/switched line, ITU-U/Bell operation
Bit	Value			Function
3, 1, 0	í 0x00			Asynchronous operation
2		í 0 1			Switched line Leased line
4		0			Not used
5		0			Not used
6		0 í 1			V.21/V.22 Bell 212A

TEST STATUS
Format		AT [cmds] S16=n [cmds]
Default:		0
Range:		0 - 122
Unit:		Bit-mapped
Description:		Contains status of loopback tests
Bit	Value	Function
0	í 0 1	Local analog loopback test disabled Local analog loopback test enabled
1	0	Not used
2	í 0 1	Local digital loopback test disabled Local digital loopback test enabled
3	í 0 1	Remote digital loopback test disabled Remote digital loopback test enabled
4	í 0 1	Remote digital loopback test not in progress Remote digital loopback test in progress
5	í 0 1	Remote digital loopback test with test and error disabled Remote digital loopback test with test and error enabled
6	í 0 1	Local digital loopback test with self test disabled Local digital loopback test with self test enabled