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 6 Overpressure test

6 Overpressure test

Recording and dubbing studios

BS ISO 58341:2019 supersedes ISO 58341:2005

Professional equipment with input current ≤ 16 A per phase and that does not comply with the requirements and limits of standard IEC 61000-3-2 may be permitted to be connected to certain types of low voltage supplies

Local Authorities/Local Council

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 6 Overpressure test1 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