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 |