ELCN
From SlugWiki
Overview
The ELCN (Embedded Luminaire/Lighting Control Network) is the physical layer for transmitting light level data to embedded dimmers.
ELCN Transmitter
The transmitter injects a 1MHz carrier into the AC line at each zero crossing when its transmitting. It is connected to the line by a high pass filter.
ELCN Receiver
The receiver has a high pass filter to remove the 60 Hz signal and a diode-capacitor detector to demodulate the data.
Mechanical
The ELCN module will fit between the light bulb and the bottom of the socket.
Preliminary Results
- 1 MHz square wave, 8 Vpp input to AC line though 2.2nF coupling cap with 10 K to ground
- Transmitted from Diddy's room to Emily's room. 250 mV signal, 250 mV noise
Second test circuit: File:ELCN.pdf