ZOOM TELEPHONICS, INC.
14400BPS FAXMODEM (INTERNAL)
Card Type |
Fax, Modem (asynchronous) |
Chip Set |
Unidentified |
Maximum Data Rate |
14.4Kbps |
Maximum Fax Rate |
14.4Kbps |
Data Bus |
8-bit ISA |
Fax Class |
Class I & II |
Data Modulation Protocol |
Bell 103/212A ITU-T V.21, V.22A/B, V.22bis, V.23, V.32, V.32bis |
Fax Modulation Protocol |
ITU-T V.17, 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/INTERRUPT SELECTION | |||
Setting |
IRQ |
JP1 |
JP2 |
COM1 (3F8h) |
4 |
Pins 3 & 5, 4 & 6 closed |
Pins 1 & 3 closed |
COM2 (2F8h) |
3 |
Pins 2 & 4, 3 & 5 closed |
Pins 2 & 4 closed |
COM3 (3E8h) |
4 |
Pins 1 & 3, 4 & 6 closed |
Pins 1 & 3 closed |
í COM4 (2E8h) |
3 |
Pins 1 & 3, 2 & 4 closed |
Pins 2 & 4 closed |
COM5 (3E8h) |
2 |
Pins 1 & 3, 4 & 6 closed |
Pins 4 & 6 closed |
COM6 (2E8h) |
2 |
Pins 1 & 3, 2 & 4 closed |
Pins 4 & 6 closed |
COM7 (3E8h) |
5 |
Pins 1 & 3, 4 & 6 closed |
Pins 3 & 5 closed |
COM8 (2E8h) |
5 |
Pins 1 & 3, 2 & 4 closed |
Pins 3 & 5 closed |
Proprietary AT Command Set
AUTO-RETRAIN - AUTO-FALLBACK/FALL-FORWARD | |
Type: |
Configuration |
Format: |
AT [cmds] %En [cmds] |
Description: |
Controls auto-retrain mode and fallback/fall-forward |
Command |
Function |
í %E0 |
Auto-retrain disabled |
%E1 |
Auto-retrain enabled |
%E2 |
Auto-fallback/fall-forward enabled |
%E3 |
Auto-fallback/fall-forward with fast hang-up enabled |
BIT MAPPED REGISTERS | |
Register |
Default |
S14 |
Unidentified |
S16 |
Unidentified |
S21 |
Unidentified |
S22 |
Unidentified |
S23 |
Unidentified |
S27 |
Unidentified |
S28 |
Unidentified |
S31 |
Unidentified |
S40 |
Unidentified |
S41 |
Unidentified |
BREAK SEND | |
Type: |
Configuration |
Format: |
AT [cmds] \Bn [cmds] |
Default: |
3 |
Range: |
1-9 |
Unit: |
.1 second |
Description: |
Sends break to modem |
BREAK TYPE | |
Type: |
Configuration |
Format: |
AT [cmds] \Kn [cmds] |
Default: |
Unidentified |
Range: |
Unidentified |
Description: |
Configures action of break signal |
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. |
Modifier |
Function |
L |
Re-dial last number |
P |
Pulse dialing enabled |
R |
Command accepted, not acted upon. |
S=n |
Dial stored telephone number n (n=0-3) |
T |
Tone dialing enabled |
W |
Dialing resumed following dial tone detection |
, |
Dialing paused for amount of time specified in S8 register |
@ |
Wait for 5 seconds of silence |
; |
Modem returned to command state after dialing |
! |
Modem commanded to go off-hook for specified time before returning on-hook. |
^ |
Calling tone enabled |
COMPRESSION | |
Type: |
Configuration |
Format: |
AT [cmds] %Cn [cmds] |
Description: |
Selects data compression |
Command |
Function |
%C0 |
Data compression disabled |
%C1 |
MNP5 enabled |
%C2 |
V.42bis enabled |
í %C3 |
MNP5 and V.42bis enabled |
CONNECT MODE | |
Type: |
Configuration |
Format: |
AT [cmds] \Nn [cmds] |
Description: |
Controls the type of connection the modem will operate in |
Command |
Function |
\N0 |
Normal mode enabled |
\N1 |
Direct mode enabled |
\N2 |
Reliable mode enabled |
í \N3 |
Auto-reliable mode enabled |
\N4 |
V.42 reliable mode enabled |
\N5 |
MNP reliable mode enabled |
FLASH DIAL MODIFIER TIME | |
Type: |
Register |
Format |
AT [cmds] S29=n [cmds] |
Default: |
0 |
Range: |
0-255 |
Unit: |
.01 second |
Description: |
Time the modem will go on-hook upon receiving the ! dial modifier in dial string. S29=0 will disable. |
FLOW CONTROL | |
Type: |
Configuration |
Format: |
AT [cmds] \Gn [cmds] |
Description: |
Selects modem port flow control |
Command |
Function |
í \G0 |
Flow control disabled |
\G1 |
Flow control enabled |
FLOW CONTROL | |
Type: |
Read-only Register |
Format |
AT [cmds] S39? [cmds] |
Description: |
Displays the current flow control |
Value |
Meaning |
0 |
Flow control disabled |
í 3 |
RTS/CTS flow control enabled |
4 |
XON/XOFF flow control enabled |
5 |
Transparent XON flow control enabled |
6 |
Transparent XON/XOFF flow control enabled |
FLOW CONTROL CHARACTER - XOFF | |
Type: |
Register |
Format: |
AT [cmds] S33=n [cmds] |
Default: |
19 |
Range: |
0-255 |
Unit: |
ASCII |
Description: |
Sets the character used to represent XOFF |
FLOW CONTROL CHARACTER - XON | |
Type: |
Register |
Format: |
AT [cmds] S32=n [cmds] |
Default: |
17 |
Range: |
0-255 |
Unit: |
ASCII |
Description: |
Sets the character used to represent XON |
INACTIVITY TIMER | |
Type: |
Register |
Format: |
AT [cmds] S30=n [cmds] |
Default: |
0 |
Range: |
0-255 |
Unit: |
10 seconds |
Description: |
Sets the length of time that the modem does not receive information before it disconnects. S30=0 will disable timer. |
LINE SIGNAL LEVEL | |
Type: |
Immediate |
Format: |
AT [cmds] %L [cmds] |
Description: |
Returns a value which indicates the received line signal level (-dBm) |
LINE SIGNAL QUALITY | |
Type: |
Immediate |
Format: |
AT [cmds] %Q [cmds] |
Description: |
Returns a value which indicates line signal quality |
MAXIMUM BLOCK SIZE FOR TRANSMISSION | |
Type: |
Configuration |
Format: |
AT [cmds] \An [cmds] |
Description: |
Sets the maximum transmittable block size |
Command |
Function |
\A0 |
MNP block size is 64 characters |
í \A1 |
MNP block size is 128 characters |
\A2 |
MNP block size is 192 characters |
\A3 |
MNP block size is 256 characters |
MNP - STREAM/BLOCK MODE | |
Type: |
Configuration |
Format: |
AT [cmds] \Ln [cmds] |
Description: |
Selects the transfer mode for MNP link |
Command |
Function |
í \L0 |
Stream mode for MNP enabled |
\L1 |
Block mode for MNP enabled |
REPORT INFORMATION | |
Type: |
Immediate |
Format: |
AT [cmds] In [cmds] |
Description: |
Displays information requested |
Command |
Function |
I0 |
Reports 3-digit product code |
I1 |
Reports ROM checksum |
I2 |
Tests and reports ROM checksum |
I3 |
Reports firmware revision code |
I4 |
Reports faxmodem identifier string |
I5 |
Reports country code |
I6 |
Reports data pump model and revision code |
SLEEP TIMER | |
Type: |
Register |
Format |
AT [cmds] S24=n [cmds] |
Default: |
0 |
Range: |
0-255 |
Unit: |
1 second |
Description: |
Maximum duration of DTE and DCE inactivity allowed prior to initiating low-power sleep mode. |