3COM CORPORATION

US ROBOTICS 14,400 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

Data Modulation Protocol

Bell 103A/212A

ITU-T V.22, V.22bis, V.23, V.32, V.32bis, V.25

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 in

CN2

Line out

CN1

COM PORT SETTINGS

COM

J1/1

J1/2

J1/3

COM1

Closed

Closed

Closed

COM2

Open

Closed

Closed

COM3

Closed

Open

Closed

COM4

Open

Open

Closed

INTERRUPT SELECT

Interrupt

J2/1

J2/2

J2/3

J2/4

J2/5

IRQ2

Closed

Open

Open

Open

Open

IRQ3

Open

Closed

Open

Open

Open

IRQ4

Open

Open

Closed

Open

Open

IRQ5

Open

Open

Open

Closed

Open

IRQ7

Open

Open

Open

Open

Closed

Proprietary AT Command Set

See document V1250 for a full command summary.