...because we can't all be on the bleeding edge...





14.4HV

LOGICODE TECHNOLOGY, INC.

14.4HV

Card Type

Modem (synchronous/asynchronous)

Chipset

Unidentified

Maximum Data Rate

14.4Kbps

Data Modulation

Unidentified (V.32 maximum)

Error Correction/Compression

MNP5, V.42, V.42bis

Data Bus

8-bit ISA

Card Size

Unidentified

CONNECTIONS

Function

Label

Function

Label

Telephone line

CN1

Telephone line

CN2

SERIAL PORT CONFIGURATION

Address

IRQ

SW1/1

SW1/2

SW1/3

SW1/4

SW1/5

SW1/6

COM1:

4

Off

On

Off

Off

On

On

COM2:

3

On

Off

Off

Off

On

Off

COM3:

4

Off

On

Off

Off

Off

On

COM4:

3

On

Off

Off

Off

Off

Off

SUPPORTED STANDARD COMMANDS

Basic AT Commands

+++, ‘comma’, A/

A, B, E, F, H, L, M, N, O, P, Q, T, V, W, X, Y, Z

&C, &D, &F, &G, &J, &K, &L, &P, &R, &S, &T, &V, &W, &X, &Y, &Z

Extended AT Commands

\A, \B, \G, \K, \L, \N, \O, \T, \U, \Y, \Z

%C, %E, %L, %Q

S-Registers

S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S18, S25, S26, S30, S36, S38, S46

S48, S82, S86, S91, S95

Note: See MHI help file for complete information.

UNIDENTIFIED COMMANDS

Command

Default

S14

0

S16

0

S21

0

S22

118

S23

7

S27

64

S40

57

S41

1

Proprietary AT Command Set

COMMUNICATIONS MODE

Type:

Configuration

Format:

AT [cmds] &Qn [cmds]

Description:

Selects communications mode options.

Command

Mode

&Q0

Asynchronous direct mode.

&Q1

Asynchronous off-line command mode and synchronous connect mode.

&Q2

Asynchronous off-line command mode - modem autodials first number in directory, then synchronous connect mode.

&Q3

Asynchronous off-line command mode on low DTR, synchronous connect mode on high DTR.

&Q5

Asynchronous auto-reliable mode.

&Q6

Asynchronous normal mode.

&Q8

Asynchronous MNP auto-reliable mode.

&Q9

Asynchronous V.42bis auto-reliable mode.

DIAL

Type:

Immediate

Format:

AT [cmds] D<#>;[cmds]

Description:

Dials the telephone number indicated according to any modifiers included in the string.

Command

Function

DL

Re-dial last number.

DP

Pulse dialing enabled.

DR

Answer mode enabled; originate mode disabled following handshake initiation.

DS=n

Dial stored telephone number n.

DT

Tone dialing enabled.

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.

DIAL (CON'T)

Command

Function

D@

Wait for Quiet 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^

Calling tone disabled for this call.

D;

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

DISPLAY INFORMATION

Type:

Immediate

Format:

AT [cmds] In [cmds]

Description:

Displays information requested about the modem.

Command

Function

I0

Displays product identification code.

I1

Displays ROM checksum.

I2

Tests and displays ROM checksum result.

I3

Displays firmware revision.

ECHO CANCELLATION OPTIMIZATION

Type:

Immediate (on next dial)

Format:

AT [cmds] \E1 [cmds]

Description:

Sets the modem to optimize its echo cancellation circuit to match the telephone system the next time a call is placed. The result is immediately stored in NVRAM.

LINE SPEED

Type:

Register

Format:

AT [cmds] S37=n [cmds]

Description:

Sets the maximum allowable data exchange rate attempted during the handshaking process.

Command

Function

í S37=0

Attempt to connect at fastest common speed.

S37=1

Set speed to 300bps.

S37=2

Set speed to 300bps.

S37=3

Set speed to 300bps.

S37=5

Set speed to 1200bps.

S37=6

Set speed to 2400bps.

S37=8

Set speed to 4800bps.

S37=9

Set speed to 9600bps.

S37=10

Set speed to 12Kbps.

S37=11

Set speed to 14.4Kbps.

S37=12

Set speed to 7200bps.

V.42bis COMPRESSION MODE

Type:

Configuration

Format:

AT [cmds] %Mn [cmds]

Description:

Selects which directions of data transfer V.42bis compression will be used.

Command

Function

%M0

Compression disabled.

%M1

Compression enabled on transmit only.

%M2

Compression enabled on receive only.

í %M3

Bidirectional compression enabled.

V.42bis DICTIONARY CLEAR

Type:

Immediate

Format:

AT [cmds] %P [cmds]

Description:

Clears the V.42bis dictionary if V.42bis mode is enabled.

V.42bis DICTIONARY SIZE

Type:

Configuration

Format:

AT [cmds] %Dn [cmds]

Description:

Selects the size of the V.42bis dictionary.

Command

Function

%D0

512 byte dictionary selected.

%D1

1024 byte dictionary selected.

í %D2

2048 byte dictionary selected.

%D3

4096 byte dictionary selected on unidirectional compression, 2048 byte dictionary selected on bidirectional compression.

V.42bis STRING LENGTH

Type:

Configuration

Format:

AT [cmds] %Sn [cmds]

Default:

32

Range:

6 - 250

Unit:

1 byte

Description:

Sets the maximum number of characters that may be compressed into a single V.42bis token.