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2400BU MODEM

UNIDENTIFIED

2400BU MODEM

Card Type

Modem (asynchronous)

Chip Set

Unidentified

Maximum Data Rate

2400bps

Data Bus

8-bit ISA

Data Modulation Protocol

Bell 103/212A

ITU-T V.21, V.22, V.22bis

CONNECTIONS

Function

Label

Function

Label

Line in

CN1

Line out

CN2

SERIAL PORT ADDRESS

Setting

SW1/1

SW1/2

COM1 (3F8h)

On

On

COM2 (2F8h)

Off

On

COM3 (3E8h)

On

Off

COM4 (2E8h)

Off

Off

INTERRUPT

Setting

SW2/1

SW2/2

2

Off

Off

3

On

Off

4

Off

On

5

Off

Off

Proprietary AT Command Set

See document 1916 for a full command summary.