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28.8FX3

ASPEN TECHNOLOGIES, INC.

28.8FX3

Modem Type

Data (synchronous/asynchronous)/Fax

Maximum Data Rate

28.8Kbps

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, V.34

Rockwell V.FC

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

JP1/F

JP1/G

COM1: (3F8h)

Closed

Closed

COM2: (2F8h)

Closed

Open

COM3: (3E8h)

Open

Closed

COM4: (2E8h)

Open

Open

INTERRUPT SELECTION

IRQ

JP1/B

JP1/C

JP1/D

JP1/E

3

Open

Open

Closed

Open

4

Open

Open

Open

Closed

5

Open

Closed

Open

Open

7

Closed

Open

Open

Open

FACTORY CONFIGURED SETTINGS

Switch

Setting

JP1/A

Off

Proprietary AT Command Set

See document V1535 for a full command summary.