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HM 18020-1, HM 18020-2

HARMONY MULTIMEDIA

HM 18020-1, HM 18020-2

Card Type

Modem (asynchronous)

Chip Set

Unidentified

I/O Options

Microphone, headphone, speaker out, line in, line out

Maximum Modem Rate

56.0Kbps

Maximum Fax Rate

14.4Kbps

Data Modulation Protocol

Bell 103/212A

ITU-T V.22, V.22bis, V.32, V.32bis, V.34, V.34+, K56FLEX

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

Headphone

CN4

Line out

CN2

Speaker out

CN5

Microphone

CN3

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

í Plug & Play mode enabled

JP4

Pins 2 & 3 closed

Plug & Play mode disabled

JP4

Pins 1 & 2 closed

SERIAL PORT ADDRESS

Setting

JP2

JP3

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

IRQ

JP1

3

Pins 10 & 11 closed

4

Pins 11 & 12 closed

5

Pins 7 & 8 closed

7

Pins 8 & 9 closed

9

Pins 4 & 5 closed

10

Pins 5 & 6 closed

11

Pins 1 & 2 closed

12

Pins 2 & 3 closed

Plug & Play

Pins 11 & 13 closed

SUPPORTED COMMAND SET

Basic AT Commands

AT, A/

A, B, E, H, L, M, Q, V, W, X, Y, Z

&C, &G, &P, &T, &V, &W, &Y, &Z

Extended AT Commands

\G, \J

%C, %E, %L, %Q

S Registers

S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S14, S16, S18, S21, S22, S23, S24, S25,

S26, S27, S29, S30, S31, S32, S33, S36, S37, S38, S39, S40, S41, S46, S48, S82, S86, S90,

S91, S92, S95, S99

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

DP

Pulse dialing enabled

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^

Disable calling tone transmission for this call only

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;

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

AUTO-MODE DETECTION

Type:

Configuration

Format:

AT [cmds] Nn [cmds]

Description:

Selects various options for the automatic detection and negotiation of protocols during the handshake process if the modem is communicating with a remote modem of dissimilar speed.

Command

Function

N0

Auto-mode detection disabled

í N1

Auto-mode detection enabled

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 escape 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 profile 0

&F1

Restore factory profile 1

FLOW CONTROL

Type:

Configuration

Format:

AT [cmds] &Kn [cmds]

Description:

Enables flow control options

Command

Function

&K0

Flow control disabled

í &K3

RTS/CTS flow control enabled

&K4

XON/XOFF flow control enabled

&K5

Transparent XON/XOFF flow control enabled

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

S(status) -REGISTERS

SOFT SWITHCH FUNCTION

Type:

Register

Format:

AT [cmds] S80=n [cmds]

Description:

Controls the soft switch

TRANSMISSION LEVEL - CELLULAR

Type:

Register

Format:

AT [cmds] S201=n [cmds]

Default:

10

Range:

0-15

Unit:

-1 dBm

Description:

Sets the signal level for transmission while in cellular mode

 

 

 

 

 

 

 

REMOTE ACCESS ESCAPE CHARACTER

Format:

AT [cmds] S202=n [cmds]

Default:

Unidentified

Range:

0-62

Description:

Controls the remote access escape character.