This standard specifies the preferred electrical connection values for the proper interconnection of equipment in audiovisual, video and television systems. This standard applies to the correct connection between equipment in audiovisual, video and television systems.
GB/T 15859-1995 history
1995GB/T 15859-1995 Preferred matching values for the interconnection of equipment in audio-visual, video and television systems
GB/T 15859-1995 Preferred matching values for the interconnection of equipment in audio-visual, video and television systems has been changed from SJ/Z 9141.3-1987 Audio,video,television equipment and systems--Part 4: Preferred matching values for the interconnection of equipment in a system.