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. |