COMPUTER PERIPHERALS, INC.
VIVA 14.4/FAX INTERNAL
Modem Type |
Data (synchronous/asynchronous)/Fax |
Maximum Data Rate |
14.4Kbps |
Maximum Fax Rate |
14.4Kbps |
Data Bus |
8-bit ISA |
Fax Class |
Class I & II |
Data Modulation Protocol |
Bell 103A/212A ITU-T V.21, V.22, V.22bis, V.23, V.32, V.32bis |
Fax Modulation Protocol |
ITU-T V.17, V.27ter, V.29 |
Error Correction/Compression |
MNP5, V.42, V.42bis |
CONNECTIONS | |||
Purpose |
Location |
Purpose |
Location |
Line out |
CN1 |
Line in |
CN2 |
BASE I/O ADDRESS SELECTION | ||||
Port |
SW1/1 |
SW1/2 |
SW1/3 |
SW1/4 |
COM1: (3F8h) |
On |
Off |
Off |
Off |
COM2: (2F8h) |
Off |
On |
Off |
Off |
COM3: (3E8h) |
Off |
Off |
On |
Off |
COM4: (2E8h) |
Off |
Off |
Off |
On |
INTERRUPT SELECTION | ||||
IRQ |
JP1/A |
JP1/B |
JP1/C |
JP1/D |
2 |
Open |
Open |
Open |
Closed |
3 |
Closed |
Open |
Open |
Open |
4 |
Open |
Closed |
Open |
Open |
5 |
Open |
Open |
Closed |
Open |
Proprietary AT Command Set
AUTO-RETRAIN | |
Type: |
Configuration |
Format: |
AT [cmds] %En [cmds] |
Description: |
Selects auto-retrain mode |
Command |
Function |
%E0 |
Auto-retrain disabled |
%E1 |
Auto-retrain enabled |
BIT-MAPPED REGISTERS | |
Register |
Default |
S14 |
138 |
S16 |
0 |
S21 |
4 |
S22 |
117 |
S23 |
183 |
S27 |
9 |
S28 |
0 |
S31 |
2 |
S40 |
105 |
S41 |
195 |
S80 |
Unidentified |
BREAK SEND | |
Type: |
Configuration |
Format: |
AT [cmds] \Bn [cmds] |
Default: |
Unidentified |
Range: |
Unidentified |
Unit: |
.1 second |
Description: |
Sends break to modem |
BREAK TYPE | ||||
Type: |
Configuration | |||
Format: |
AT [cmds] \Kn [cmds] | |||
Description: |
Configures action of break signal | |||
Command |
Break from DTE |
Modem receives \B |
Break from remote modem | |
\K0 |
Enter command mode, do not send break to remote modem |
Buffers cleared and break sent to remote modem |
Buffers cleared and break sent to DTE | |
\K1 |
Buffers cleared and break sent to remote modem |
Buffers cleared and break sent to remote modem |
Buffers cleared and break sent to DTE | |
\K2 |
Enter command mode, do not send break to remote modem |
Send break to remote modem immediately |
Send break to DTE immediately | |
\K3 |
Send break to remote modem immediately |
Send break to remote modem immediately |
Send break to DTE immediately | |
\K4 |
Enter command mode, do not send break to remote modem |
Send break to remote modem with transmitted data |
Break sent with received data to the DTE | |
\K5 |
Send break with transmitted data |
Send break to remote modem with transmitted data |
Break sent with received data to the DTE |
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 |
%C3 |
MNP5 and V.42bis enabled |
CONNECT MODE | |
Type: |
Configuration |
Format: |
AT [cmds] \Nn [cmds] |
Description: |
Sets connect mode |
Command |
Function |
\N0 |
Normal mode enabled |
\N1 |
Direct mode enabled |
\N2 |
Reliable mode enabled |
\N3 |
Auto-reliable mode enabled |
\N4 |
LAP-M mode only enabled |
\N5 |
MNP mode only enabled |
DISPLAY CURRENT COMMAND STATUS | |
Type: |
Immediate |
Format: |
AT [cmds] \S [cmds] |
Description: |
Displays current setting of modem commands |
DISPLAY STORED NUMBERS | |
Type: |
Immediate |
Format: |
AT [cmds] \F [cmds] |
Description: |
Displays all stored phone numbers |
FAX TRANSMIT LEVEL | |
Type: |
Register |
Format: |
AT [cmds] S92=n [cmds] |
Default: |
10 |
Range: |
0-15 |
Unit: |
-1dBm |
Description: |
Controls fax transmission level |
FLOW CONTROL | |
Type: |
Configuration |
Format: |
AT [cmds] \Gn [cmds] |
Description: |
Selects modem port flow control |
Command |
Function |
\G0 |
Flow control disabled |
\G1 |
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 |
LEASED LINE TRANSMISSION LEVEL | |
Type: |
Register |
Format: |
AT [cmds] S99=n [cmds] |
Default: |
10 |
Range: |
0-15 |
Unit: |
-1 dBm |
Description: |
Sets the signal level for transmission when in leased-line mode |
LINE SIGNAL LEVEL | |
Type: |
Immediate |
Format: |
AT [cmds] %L [cmds] |
Description: |
Returns received line signal level |
LINE TYPE | |
Type: |
Configuration |
Format: |
AT [cmds] %Mn [cmds] |
Description: |
Selects AUXCTL output |
Command |
Function |
%M0 |
AUXCTL output low enabled |
%M1 |
AUXCTL output high enabled |
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 |
\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 |
Command |
Function |
\L0 |
Stream mode for MNP enabled |
\L1 |
Block mode for MNP enabled |
PSTN TRANSMIT LEVEL | |
Type: |
Register |
Format: |
AT [cmds] S91=n [cmds] |
Default: |
10 |
Range: |
0-15 |
Unit: |
-1dBm |
Description: |
Controls PSTN transmission level |
REPORT LINE SIGNAL QUALITY | |
Type: |
Immediate |
Format: |
AT [cmds] %Q [cmds] |
Description: |
Reports line signal quality. If the value is greater than 7, the modem will retrain. |
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 |
TEST MODE - PTT | |
Type: |
Immediate |
Format: |
AT [cmds] %T [cmds] |
Description: |
Send PTT test signals for European line test |
V.23 SPLIT BAUD MODE | |
Type: |
Configuration |
Format: |
AT [cmds] \Wn [cmds] |
Description: |
Controls V.23 split baud mode |
Command |
Function |
\W0 |
V.23 split baud mode disabled |
\W1 |
V.23 split baud mode enabled |
V.23 SPEED DIRECTION | |
Type: |
Configuration |
Format: |
AT [cmds] %Fn [cmds] |
Description: |
Selects V.23 speed and direction |
Command |
Function |
%F1 |
1200bps receive/75bps transmit enabled |
%F2 |
1200bps transmit/75bps receive enabled |