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129 / 174

Microsoft Windows Logo Program System and Device Requirements  —  129

All general network device requirements in B7.1 are included by reference, except for requirements specific to connection-less or LAN devices.

B7.3.1 DSL Device - Windows Compatibility

B7.3.1.1 Windows compatibility and implementation notes

http://www.microsoft.com/hwdev/tech/network/dsl/default.asp

This is a general reference, not a requirement.

B7.3.1.2 External DSL Modems Design Guidelines

http://www.microsoft.com/hwdev/tech/network/dsl/extDSLmodems.asp

This is a general reference, not a requirement.

B7.3.2 DSL Device - Industry Standards

Note: This list provides complete titles and web locations for references cited. The listing of a reference here does not imply that complete compliance with that reference is a Windows Logo Program requirement.  

B7.3.2.1 An Interoperable End-to-End Broadband Service Architecture over ADSL System

http://www.microsoft.com/hwdev/tech/network/dsl/default.asp

B7.3.2.2 ATM User-Network Interface Specification, V. 3.1

http://www.atmforum.com

B7.3.2.3 DSL modem industry standards

Integrated ADSL modems exposing an Ethernet interface must meet requirement for, “Adapter supports filtering for multicast addresses.”

B7.3.2.3.1 ITU-T G.994.1, G.991.1, G.992.2.
B7.3.2.3.2 T1.413 Issue 2 (G.992.1).

ITU-T G.994.1, Handshake procedures for digital subscriber line (DSL) transceivers, is the international standard that defines mechanisms to allow DSL transceivers to exchange capabilities and to select a common mode of operation. G.994.1 supports modulation standards G.991.1 High bit-rate Digital Subscriber Line (HDSL), G.992.1 (full-rate discrete multitone [DMT] ADSL), G.992.2 (“G.lite” DMT ADSL), T1.413 Issue 2 (ANSI full-rate ADSL), and T1 TR-59 (CAP/QAM).

Use of G.994.1 allows the customer premises and central office DSL modems to negotiate a common mode of operation, and more importantly, identifies the cause of failure when the link is not established due to the incompatible modes of operation of the two modems.

B7.3.2.3.3 U.S. T1 Committee Technical Report TR-59.

U.S. T1 committee Technical Report TR-59, “Single-Carrier Rate Adaptive Digital Subscriber Line (RADSL),” is the industry consensus specification for CAP/QAM ADSL modems. ADSL modems that support CAP/QAM modulation must implement TR-59. CAP/QAM ADSL modems may also support other modulation methods such as DMT.

Note: TR-59 is not a U.S. ANSI standard for ADSL modems, but is supported by some network access providers.

© 1999-2002 Microsoft Corporation. All rights reserved.

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