Method and control unit for monitoring lighting devices

摘要

The control device has operable lights (2, 3) with a connection (7) for measuring a control signal produced by light signal for a first light and a second connection (8) to a second light channel (6) with a second light, which is headed independent of the first light signal of the first light. A monitoring circuit supervises the function of a light. The monitoring circuit has a signal generator (11) for producing an optical and or acoustic error signal for the loss of a light.