CAN/CSA-ISO/IEC ISP 10609-43-99 (R2008)

This National Standard of Canada is equivalent to International Standard ISO/IEC ISP 10609-43:1995. 1 Scope 1.1 General ISO/IEC ISP 10609 is applicable to end systems concerned with operating in the Open Systems Interconnection (OSI) environment. It specifies a combination of OSI standards, which collectively provide the connection-mode Transport Service using the connection-mode Network Service. This part of ISO/IEC ISP 10609 defines the profile TD4211. The TD4211 profie is the TD Group which supports Transport protocol class 0. 1.2 Position within the taxonomy The taxonomy of OSI profiles is defined in ISO/IEC TR 10000-2. This part of ISO/IEC ISP 10609 defines the profile: TD4211 Connection-mode Transport Service over connection-mode Network Service - ISDN circuit-mode service, B-channel - X.25 DTE to DTE operation This profile may be combined with any A-profile at the A/T boundary. 1.3 Scenario Figure 1 illustrattes the configuration of systems to which the TD4211 profile is applicable.