PARADYNE CORPORATION

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 PARADYNE CORPORATION, DATAPORT 3710 for a full command summary.