ZOOM TELEPHONICS, INC.
VFP 28.8
Card Type |
Fax, Modem (asynchronous) |
Chip Set |
Unidentified |
Maximum Data Rate |
28.8Kbps |
Maximum Fax Rate |
14.4Kbps |
Data Bus |
8-bit ISA |
Fax Class |
Unidentified |
Data Modulation Protocol |
Unidentified |
Fax Modulation Protocol |
Unidentified |
Error Correction/Compression |
Unidentified |
V2021
CONNECTIONS | ||||||
Function |
Label |
Function |
Label | |||
Line out |
CN1 |
Line in |
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 4 & 6, 1 & 3 closed |
Pins 1 & 3 closed |
í COM4 (2E8h) |
3 |
Pins 1 & 3, 2 & 4 closed |
Pins 2 & 4 closed |
MISCELLANEOUS TECHNICAL NOTES |
Note: Diagram not available. |
Proprietary AT Command Set
MNP - EXTENDED SERVICES | |
Type: |
Configuration |
Format: |
AT [cmds] -Kn [cmds] |
Description: |
Controls V.42 LAPM to MNP10 conversion |
Command |
Function |
-K0 |
MNP extended services disabled |
í -K1 |
MNP extended services enabled |
-K2 |
MNP extended services enabled; suppress MNP extended services initiation on V.42 LAPM answer detection phase. |
MNP10 - FALLBACK | |
Type: |
Configuration |
Format: |
AT [cmds] -Qn [cmds] |
Description: |
Allows MNP10 to fall back to 2400bps |
Command |
Function |
-Q0 |
MNP10 at 2400bps disabled |
í -Q1 |
MNP10 at 2400bps enabled |
MNP10 - LINK NEGOTIATION | |
Type: |
Configuration |
Format: |
AT [cmds] *Hn [cmds] |
Description: |
Sets the speed at which MNP10 link negotiation will occur |
Command |
Function |
í *H0 |
Link will be negotiated at highest possible speed |
*H1 |
Link will be negotiated at 1200bps |
*H2 |
Link will be negotiated at 4800bps |
MNP10 - POWER LEVEL ADJUST | |
Type: |
Configuration |
Format: |
AT [cmds] )Mn [cmds] |
Description: |
Controls automatic transmit power level adjustment during MNP 10 link negotiation |
Command |
Function |
í )M0 |
Power level adjustment disabled |
)M1 |
Power level adjustment enabled |
TRANSMISSION LEVEL - CELLULAR | |
Type: |
Configuration |
Format: |
AT [cmds] @Mn [cmds] |
Default: |
26 |
Range: |
0,1,2-10,11-31 |
Unit: |
-1dBm |
Description: |
Sets the signal level for transmission while in cellular mode |
Command |
Function |
í @M0 |
-26 dBm |
@M1 |
-30 dBm |
@M2-@M10 |
-10 dBm |
V.32 - COMPROMISE EQUALIZER | |
Type: |
Configuration |
Format: |
AT [cmds] :En [cmds] |
Description: |
Controls V.32 compromise equalizer |
Command |
Function |
:E0 |
Equalizer disabled |
í :E1 |
Equalizer enabled |