Motorola and V.32bis 用户手册

About the Modem 1-9

With the Adaptive Rate System enabled, the 326X Series Modem continuously 
optimizes its transmit speed within the V.34, V.32bis, V.32 (coded and uncoded), 
and V.22bis modulation modes. By constantly monitoring signal quality, the modem 
adapts to the optimum transmission rate allowed by line conditions, ensuring 
maximum throughput and efficiency.

The modem supports a full range of ITU-TS V.54 and V.22bis compatible tests to 
help isolate and correct problems.

Refer to Chapter 6 for typical problems and ways to correct them. Chapter 6 also 
lists the supported diagnostic tests, and instructions for initiating and terminating 
tests using either the front panel control keys or AT commands.

For details on tests, refer to Chapter 4 of the 326X Series Modem Reference Guide.

Telephone company regulations vary by country. Because of this, there are minor 
physical or operational differences among 326X Series Modem models.

Appendix C, Country-Specific Information, provides cabling, rear panel layouts, 
interface pinouts, and other modem features that are required or restricted by country 
regulatory agencies.

This release of the 326X Series Modem complies with the European 
Telecommunication Standards Institute’s (ETSI) Net 20, 21, 22, 23, and 25.

This product is CE marked to indicate compliance with the following European 
directives:

• 73/23/EEC Low Voltage Directive (Safety)

• 89/336/EEX EMC Directive

Compliance with the above directives may only be assured when the equipment is 
installed and operated in accordance with the instructions for its use and the purpose 
for which it is intended.

Products that do not bear the CE mark are not intended for supply or use in the 
European Union.