( Nejiri kagari) -A pattern formed by weaving all threads of an element over and under all threads of an adjacent element. (W29; V43T; V84TTrad; L58)

Two or more devices (most commonly dubbers in a mixing facility) with motors that run in sync are interlocked. It is not quite correct to say that a sync sound camera and tape recorder are interlocked, regardless of whether they use crystal of cable sync, since the tape recorder is recording pilottone and not really running with its motor interlocked with the camera motor. [Go to source

so arranged that a sequence of operation or steps are electrically or mechanically assured.