ENV 41802-5:1992

Information systems interconnection - X.25 Protocol Relaying - Part 5: Profile RC51.1111 (M-IT-02 R/32 over PSTN leased line) ENV 41802-5:1992

Scope

This functional standard is applicable to interworking units concerned with the use of ISO 8208 (X.25 Packet Level Protocol). An RCp.q relay provides the means for a system on one subnetwork to communicate with a system, or make use of facilities, on another subnetwork. This part of this functional standard defines the RC51.1111 profile, which is applicable to interworking units operating between CSMA/CD LAN subnetworks and PSDNs using virtual calls over a PSTN leased line permanent access.