BS 5817-5.1:1981
Specification for audio-visual, video and television equipment and systems. Control, synchronization and address codes. Synchronized tape/visual operating practice
Recommends procedures for the projection and playback of automatic cue tone operated tape/slide and filmstrip sequences and also covers synchronization, magazine operation, slide identification, changes and stop points. Procedures for tapes with recorded cue tones, reeled or cassetted also given.