| 摘要 |
Multiple control modules (14, 16, 18) provide various power control functions including occupancy sensing, ambient light level sensing, manual touch switch (push button) preset stations, light dimming and power control relay switching. The control modules (14, 16, 18) are interconnected in a conventional four-wire local area network for executing different power control functions in response to remote wireless commands as well as preset manual switch commands at the wall box level. The local area network (12) supplies DC operating power and communicates programming command and control module status information signals to all network control modules (14, 16, 18). One or more control modules (14, 16, 18) include an infrared signal sensor, a laser signal sensor, a signal decoder, a data microcontroller, a parameter lookup table and multiple light emitting diodes (LEDs). The LED diodes are used individually or in combination, in one or more colors and blink rate, to indicate the programming mode, or provide sensor feedback, or indicate device status, according to information contained in a command signal transmitted by a remote programming unit (58).
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