AT&T PARADYNE
DATAPORT 3721
|
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.21CH2, 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 |
|
COM1: (3F8h) |
On |
On |
|
COM2: (2F8h) |
On |
Off |
|
COM3: (3E8h) |
Off |
On |
|
COM4: (2E8h) |
Off |
Off |
|
INTERRUPT SELECTION | ||||
|
IRQ |
SW1/3 |
SW1/4 |
SW1/5 |
SW1/6 |
|
2 |
Off |
Off |
On |
Off |
|
3 |
On |
Off |
Off |
Off |
|
4 |
Off |
On |
Off |
Off |
|
5 |
Off |
Off |
Off |
On |
Proprietary AT Command Set
See document V1469 for a full command summary.