ZOOM TELEPHONICS, INC.
COMSTAR 14400
Card Type |
Fax, Modem (asynchronous), Voice |
Chip Set |
Rockwell |
I/O Options |
Speakerphone, Voicemail |
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.22, V.22bis, V.23, V.32, V.32bis |
Fax Modulation Protocol |
ITU-T V.17, V.21CH2, V.27ter, V.29, V.33 |
Error Correction/Compression |
MNP10, V.42bis |
CONNECTIONS | ||||||
Function |
Label |
Function |
Label | |||
Line out |
CN1 |
Microphone |
CN3 | |||
Line in |
CN2 |
Speaker |
CN4 |
USER CONFIGURABLE SETTINGS | ||
Function |
Label |
Position |
í Electret microphone |
JP1 |
Pins 1 & 2 closed |
Plantronics headset |
JP1 |
Pins 2 & 3 closed |
Dynamic microphone |
JP1 |
Open |
í Unpowered speaker, volume medium level |
JP2 |
Closed |
Powered speaker, volume low level |
JP2 |
Open |
Volume high level |
JP2 |
Closed |
í Unpowered speaker, volume medium level |
JP3 |
Closed |
Powered speaker, volume low level |
JP3 |
Open |
Volume high level |
JP3 |
Open |
Proprietary AT Command Set
AUTO-RETRAIN - AUTO-FALLBACK/FALL-FORWARD | |
Type: |
Configuration |
Format: |
AT [cmds] %En [cmds] |
Description: |
Controls auto-retrain mode and auto-fallback/fall-forward |
Command |
Function |
í %E0 |
Auto-retrain disabled |
%E1 |
Auto-retrain enabled |
%E2 |
Auto-fallback/fall-forward enabled |
%E3 |
Auto-retrain enabled with fast hang-up |
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] |
Description: |
Configures action of break signal |
CALLER ID | |
Type: |
Configuration |
Format: |
AT [cmds] #CID=n [cmds] |
Description: |
Controls the Caller ID function |
Command |
Function |
#CID=0 |
Caller ID disabled |
#CID=1 |
Caller ID 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 |
LAP-M error correcting only enabled |
\N5 |
MNP error correcting only enabled |
DIAL | |
Type: |
Immediate |
Format: |
AT [cmds] D <#> [cmds] |
Description: |
Dials telephone number according to any modifiers included in the string |
Modifier |
Function |
L |
Redials last number |
P |
Pulse dialing enabled |
T |
Tone dialing enabled |
W |
Dialing resumed following dial tone detection |
, |
Dialing paused for amount of time specified in S8 register |
@ |
Modem waits for a ring-back signal followed by silence up to 5 second prior to executing the rest of the dial string. |
R |
Command recognized and not initiated |
; |
Modem returned to command mode after dialing. |
! |
Flash function initiated. Goes on-hook for amount of time specified in S29 register |
S=(0-3) |
Number in memory location &Zn dialed |
^ |
Calling tone enabled, data mode only. |
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. |
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: |
Register | |
Format: |
AT [cmds] S39=n [cmds] | |
Description: |
Select the type of flow control used | |
Command |
Function | |
S39=0 |
Flow control disabled | |
í S39=3 |
Hardware flow control enabled | |
S39=4 |
Software flow control enabled | |
S39=5 |
Transparent software flow control enabled | |
S39=6 |
Both hardware and software 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 |
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 |
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. |
SPEAKERPHONE OPTIONS | ||
Type: |
Immediate/Configuration | |
Format: |
AT [cmds] (see below) [cmds] | |
Description: |
Configures the modem to voice mode | |
Command |
Function | |
#CLS=8 |
Enable voice mode | |
#VLS=6 |
Enable speakerphone | |
A |
Answer in-coming call | |
#VRN=0 |
To originate a call, then AT<#><enter> | |
HZ |
Ends the call |
SPEAKERPHONE SETTINGS | ||
Type: |
Configuration | |
Format: |
AT [cmds] #SPK=x, y, z [cmds] | |
Description: |
Controls the speakerphone settings | |
í Command |
Function | |
í x=0 |
Microphone muted, speaker enabled | |
x=1 |
Microphone and speaker enabled | |
í x=2 |
Microphone on maximum and speaker disabled | |
y =(0-16) |
Speaker volume; increase the value to lower the volume. | |
Y=5 |
Default setting for speaker | |
Z =(0-3) |
Microphone sensitivity; increase the value for more sensitivity. | |
Z=1 |
Default setting for microphone |