3COM CORPORATION

US ROBOTICS 56K VOICE FAXMODEM (MODEL 0026500)

Card Type

Modem (asynchronous)

Chipset

U.S. Robotics

I/O Options

Voice, speakerphone, 25-pin serial port, power, RJ-45 connector, line in, line out

Maximum Data Rate

56Kbps

Maximum Fax Rate

14.4Kbps

Data Modulation

Bell 103/212A

ITU-T V.21, V.22, V.22bis, V.23, V.32, V.32bis, V.34, V.34+

U.S. Robotics x2

Fax Modulation

ITU-T V.17, V.21, V.27ter, V.29

Video Modulation

ITU-T V.80

Error Correction/Compression

MNP5, V.42, V.42bis

Fax Class

Class I & II

Data Bus

External

CONNECTIONS

Function

Label

Function

Label

25-pin serial port

CN1

Line out

CN4

RJ-45 interface

CN2

Line in

CN5

AC power

CN3

Power button

POWER

DIAGNOSTIC LED(S)

LED

Color

Status

Condition

PWR

Unidentified

On

Power is on

PWR

Unidentified

Off

Power is off

SD

Unidentified

On

Modem is transmitting data

SD

Unidentified

Off

Modem is not transmitting data

RD

Unidentified

On

Modem is receiving data

RD

Unidentified

Off

Modem is not receiving data

LINK

Unidentified

On

Modem is receiving a signal from network

LINK

Unidentified

Off

Modem is off-line

SUPPORTED STANDARD COMMANDS

Basic AT Commands

+++, ‘comma’, A/

A, B, D, E, F, H, L, M, O, P, T, V, X, Z

&C, &D, &F, &G, &P, &R, &S, &T, &W

S-Registers

S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S18, S25, S38

Note: See MHI help file for complete information.

Proprietary AT Command Set

See U.S. ROBOTICS SPORTSTER 56K FAXMODEM (INTERNAL) for a full command summary.