Information technology. Use of X.25 packet layer protocol in conjunction with X.21/X.21 bis to provide the OSI connection-mode network service Ingestion-build-79769 Guide to the accommodation and

Guide to the accommodation and operating environment for Information Technology (IT) equipment

6 Overpressure test

BS ISO 58341:2019 supersedes ISO 58341:2005

Refrigerator-Freezer State Diagram

Information technology. Use of X.25 packet layer protocol in conjunction with X.21/X.21 bis to provide the OSI connection-mode network service Ingestion-build-79769 Guide to the accommodation and1 Scope This CCITT Recommendation International Standard is applicable to the environments where Recommendation X. 21 or X. 21 bis is used and where the X. 25 packet layer protocol (PLP), as standardized in ISO IEC 8208, is operated during the X. 21 X. 21 bis data phase to provide the OSI Connection mode Network Service (CONS). These environments include a CSDN and an ISDN Terminal Adaptor complying with Recommendation X. 30 which provides an X. 21