Part of a series of articles on. Analytical psychology (sometimes analytic psychology), also called Jungian psychology, is a school of psychotherapy which originated in the ideas of Carl Jung, a Swiss psychiatrist. It emphasizes the importance of the individual psyche and the personal quest for wholeness.
For any application where human oversight is needed, a Standard Stop/Start PB station should be combined with the HOA. The function of a HOA (Hand-Off-Auto) selector switch is to control whether a motor is in hand (manual) mode, auto mode, or off. To operate the motor while hand mode is selected, start and stop push buttons are usually used.
The switchhook is the device that senses whether the handset or receiver is in its cradle. The term flash originated from the cord circuit of the early telephone switchboard that telephone company operators used to connect calls. The calling party and called party each had an indicator light on the cord circuit. When the subscriber cycled the telephone on-hook/off-hook, the light would flash.