Motorola and V.32bis Adaptive Rate System, Troubleshooting V.54 and V.22bis Tests, NET Compliance

Adaptive Rate System

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.

Troubleshooting (V.54 and V.22bis Tests)

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.

Country-Specific Information

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.

NET Compliance

This release of the 326X Series Modem complies with the European

Telecommunication Standards Institute’s (ETSI) Net 20, 21, 22, 23, and 25.

CE Regulatory Marking Directive (93/68/EEC)

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.

About the Modem

About the Modem 1-9