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. |