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HM 18022

HARMONY MULTIMEDIA

HM 18022

Card Type

Modem (asynchronous)

Chip Set

TI

I/O Options

Audio line in, speaker out, microphone, line in, line out

Maximum Modem Rate

56.0Kbps

Maximum Fax Rate

14.4Kbps

Data Modulation Protocol

Bell 103/212A

ITU-T V.21, V.22, V.22bis, V.23, V.32, V.32bis, V.34, x2

Fax Modulation Protocol

ITU-T V.17, V.27ter, V.29

Error Correction/Compression

MNP5, V.42, V.42bis

Fax Class

Class I

Data Bus

16-bit ISA

Card Size

Half-length, full-height card

CONNECTIONS

Function

Label

Function

Label

Line in

CN1

Speaker out

CN4

Line out

CN2

Microphone

CN5

Audio line in

CN3

   

SERIAL PORT ADDRESS

Setting

J3/A

J3/B

J3/C

COM1 (3F8h)

Closed

Closed

Closed

COM2 (2F8h)

Open

Closed

Closed

COM3 (3E8h)

Closed

Open

Closed

COM4 (2E8h)

Open

Open

Closed

Plug & Play

Open

Open

Open

INTERRUPT

Setting

J4/A

J4/B

J4/C

J4/D

J4/E

IRQ 2

Closed

Open

Open

Open

Open

IRQ 3

Open

Closed

Open

Open

Open

IRQ 4

Open

Open

Closed

Open

Open

IRQ 5

Open

Open

Open

Closed

Open

IRQ 7

Open

Open

Open

Open

Closed

SUPPORTED COMMAND SET

Basic AT Commands

AT, +++ A/

A, B, D, E, F, H, M, O, V, X

&C, &G, &R, &T, &Z

S Registers

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

Note: See MHI Help File for full command documentation.

Proprietary AT Command Set

DISPLAY COMMANDS

Type:

Configuration

Format:

AT [cmds] $ [cmds]

Description:

Display a list of commands

Note: The $ command can be used with all prefixes.

SPEAKER VOLUME

Type:

Configuration

Format:

AT [cmds] Ln [cmds]

Description:

Controls speaker volume

Command

Function

L0

Low volume setting

L1

Low volume setting

í L2

Medium volume setting

L3

Highest volume setting

RESULT CODES

Type:

Configuration

Format:

AT [cmds] Qn [cmds]

Description:

Enables modem to send result codes to the DTE

Command

Function

í Q0

Result code sending enabled

Q1

Result code sending disabled

Q2

Display result codes only in Originate mode

Q3

Display result codes only in Ring mode

DEFAULT CONFIGURATION

Type:

Configuration

Format:

AT [cmds] Yn [cmds]

Description:

Set power on/reset default configuration

Command

Function

í Y0

Profile 0

Y1

Profile 1

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

Resets modem to NVRAM profile selected by Y command

Z1

Resets modem to NVRAM profile 0

Z2

Resets modem to NVRAM profile 1

Z3

Resets modem to factory default profile 0

Z4

Resets modem to factory default profile 1

Z5

Resets modem to factory default profile 2

MODIFY RESPONSES

Type:

Configuration

Format:

AT [cmds] &An [cmds]

Description:

Selects the modify responses

Command

Function

í &A0

ARQ result codes disabled

&A1

Append/ARQ to word CONNECT responses when an error-correction connection is made

&A2

Append additional V.32 indicator in result codes for calls at or above 4800bps

&A3

Append Protocol of call: /LAPM, /MNP or NONE and V.42bis/MNP5

DTE INTERFACE SPEED

Type:

Configuration

Format:

AT [cmds] &Bn [cmds]

Description:

Controls the DTE interface speed

Command

Function

í &B0

Serial speed follows connect speed

&B1

Serial speed locked

&B2

In answer mode, fix serial port speed for ARQ calls and change it for non-ARQ calls

DATA TERMINAL READY (DTR)

Type:

Configuration

Format:

AT [cmds] &Dn [cmds]

Description:

Selects modem response to DTR

Note: The action each variant of &D causes depends on the setting of &Q

Command

Function

í &D0

Modem does not respond to DTR

&D1

Modem goes to command mode after DTR goes is off

&D2

Modem goes to command mode and disconnects (hangs up) after DTR goes off; Auto-Answer is disabled.

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

í &F0

Restore factory configuration: X1 &A1, &B0, &I0, &R1

&F1

Restore factory profile 1 (hardware flow control)

&F2

Restore factory profile 2 (software flow control)

FLOW CONTROL

Type:

Configuration

Format:

AT [cmds] &Hn [cmds]

Description:

Sets the flow control

Command

Function

í &H0

Flow control disabled

&H1

Hardware flow control enabled

&H2

Software flow control enabled

&H3

Hardware and software flow control enabled

XON/XOFF FLOW CONTROL

Type:

Configuration

Format:

AT [cmds] &In [cmds]

Description:

Sets the XON/XOFF flow control pass through

Command

Function

í &I0

XON/XOFF flow control disabled

&I1

XON/XOFF signals processed to modem and remote system

&I2

XON/XOFF signals processed to modem only

DATA COMPRESSION

Type:

Configuration

Format:

AT [cmds] &Kn [cmds]

Description:

Controls the V.42bis and MNP Class 5 data compression

Command

Function

&K0

Data compression disabled

&K1

Data compression enabled if the DTE data rate is higher than the link rate and the remote DCE either supports MNP 5 of V.42bis

&K2

Data compression enabled

&K3

V.42bis data compression only

OPERATING MODE

Type:

Configuration

Format:

AT [cmds] &Mn [cmds]

Description:

Selects operating mode

Command

Mode

&M0

Normal mode

í &M4

Auto-reliable mode

&M5

MNP reliable mode

DCE LINK RATE

Type:

Configuration

Format:

AT [cmds] &Nn [cmds]

Description:

Selects the DCE link rate

Command

Function

í &N0

Variable rate

&N1

Attempt at 300bps connection

&N2

Attempt at 1200bps connection

&N3

Attempt at 2400bps connection

&N4

Attempt at 4800bps connection

&N5

Attempt at 7200bps connection

&N6

Attempt at 9600bps connection

&N7

Attempt at 12000bps connection

&N8

Attempt at 14400bps connection

&N9

Attempt at 16800bps connection

&N10

Attempt at 19200bps connection

&N11

Attempt at 21600bps connection

&N12

Attempt at 24000bps connection

&N13

Attempt at 26400bps connection

&N14

Attempt at 28800bps connection

&N15

Attempt at 31200bps connection

&N16

Attempt at 33600bps connection

&N17

Attempt at 32000bps connection

&N18

Attempt at 36000bps connection

&N19

Attempt at 40000bps connection

&N20

Attempt at 44000bps connection

&N21

Attempt at 48000bps connection

&N22

Attempt at 49333bps connection

&N23

Attempt at 50666bps connection

&N24

Attempt at 52000bps connection

PULSE RATIO

Type:

Configuration

Format:

AT [cmds] &Pn [cmds]

Description:

Selects the pulse make/break ratio

Command

Mode

í &P0

39/61ms at 10pps (North America)

&P1

33/67ms at 10pps (Europe)

DATA SET READY (DSR)

Type:

Configuration

Format:

AT [cmds] &Sn [cmds]

Description:

Selects DSR options

Command

Function

&S0

DSR forced high

í &S1

DSR high only while modem is handshaking or connected

DCE LINK FLOOR

Type:

Immediate

Format:

AT [cmds] &Un

Description:

Selects the DCE link rate floor

Command

Function

&U0

Disable

&U1

300bps

&U2

1200bps

&U3

2400bps

&U4

4800bps

&U5

7200bps

&U6

9600bps

&U7

12000bps

&U8

14400bps

&U9

16800bps

&U10

19200bps

&U11

21600bps

&U12

24000bps

&U13

26400bps

&U14

28800bps

&U15

31200bps

&U16

33600bps

&U17

32000bps

&U18

36000bps

&U19

40000bps

&U20

44000bps

&U21

48000bps

&U22

49333bps

&U23

50666bps

&U24

52000bps

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 S-register values to profile 0

&W1

Write the S-register values to profile 1

BREAK HANDLING

Type:

Configuration

Format:

AT [cmds] &Yn [cmds]

Description:

Controls the break handling

Command

Function

í &Y0

Destructive break

&Y1

Expedited destructive option

&Y2

Expedited non-destructive option

S(status) -REGISTERS

INACTIVITY TIME

Type:

Register

Format

AT [cmds] S19n [cmds]

Default:

0

Range:

0-255

Unit:

1 second

Description:

Sets the maximum duration for inactivity timer

BIT-MAPPED REGISTER S21

Format

AT [cmds] S21=n [cmds]

Default:

10

Range:

0-255

Unit:

.01 second

Description:

Sets the break length character

FLOW CONTROL CHARACTER XON

Type:

Register

Format:

AT [cmds] S22=n [cmds]

Default:

19

Range:

0-127

Unit:

ASCII

Description:

Sets the character used to represent XON

FLOW CONTROL CHARACTER - XOFF

Type:

Register

Format:

AT [cmds] S23=n [cmds]

Default:

19

Range:

0-127

Unit:

ASCII

Description:

Sets the character used to represent XOFF