USRobotics
       

Contents:

Welcome to 56K Information Access

Product Features >

Installation for All Operating Systems

Troubleshooting

Technical Reference

Glossary

Regulatory Information

Limited Warranty

 

56K Faxmodem User's Guide and Reference

Product Features

Modulation Schemes

ITU-T V.92
ITU-T V.90
ITU-T V.34+
ITU-T V.34
ITU-T V.32 bis
ITU-T V.32
ITU-T V.22 bis
ITU-T V.22
ITU-T V.23
Bell 212A
ITU-T V.21

Error Control and Data Compression Schemes

ITU-T V.42
ITU-T V.42 bis
MNP 2-5

Fax Modulation Schemes

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

Fax Standards

EIA 578 Class 1 FAX
EIA 592 Class 2.0 FAX

V.92 Link Rates

Front Channel (Download Speeds)

28000, 29333, 30666, 32000, 33333, 34666, 36000, 37333, 38666, 40000, 41333, 42666, 44000, 45333, 46666, 48000, 49333, 50666, 52000, 53333, 54666, 56000

Back Channel (Upload Speeds) PCM Upstream Only (If supported by your ISP)

24000, 25333, 26666, 28000, 29333, 30666, 32000, 33333, 34666, 36000, 37333, 38666, 40000, 41333, 42666, 44000, 45333, 46666, 48000

Back Channel (Upload Speeds) Non-PCM Upstream

4800, 7200, 9600, 12000, 14400, 16800, 19200, 21600, 24000, 26400, 28800, 31200

V.90 Link Rates

Front Channel (Download Speeds)

28000, 29333, 30666, 32000, 33333, 34666, 36000, 37333, 38666, 40000, 41333, 42666, 44000, 45333, 46666, 48000, 49333, 50666, 52000, 53333, 54666, 56000

Back Channel (Upload Speeds)

4800, 7200, 9600, 12000, 14400, 16800, 19200, 21600, 24000, 26400, 28800, 31200

V.34 Link Rates

4800, 7200, 9600, 12000, 14400, 16800, 19200, 21600, 24000, 26400, 28800, 31200, 33600

V.32 bis Link Rates

4800, 7200, 9600, 12000, 14400

Additional Link Rates

300, 1200/75 (V.23), 1200, 2400

Fax Link Rates

2400, 4800, 7200, 9600, 12000, 14400

Flash ROM Upgradable

56K Faxmodem supports software download through flash memory. You can obtain the latest features by downloading updates quickly and easily.

Front Panel Lights

Symbol
Meaning
Status
PWR Power The modem is turned on.
CD Carrier Detect ON if modem receives a valid data signal (carrier) from a remote modem, indicating that a data transmission is possible. Always ON if CD override is ON (&C0).
RD Received Data Flashes when modem sends result codes or passes received data bits from remote.
SD Send Data Flashes when computer sends a data bit to modem.