Difference between revisions of "ELCN"
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Second test circuit: [[Image:ELCN.pdf]] | Second test circuit: [[Image:ELCN.pdf]] | ||
| + | |||
| + | ==East Campus Wiring== | ||
| + | Phases are assigned arbitrarilly. Phase 1 for [[Bemis]] is not the same as phase 1 for [[Walcott]]. | ||
| + | ===Bemis=== | ||
| + | Phase 1 | ||
| + | * B407 north old circuit | ||
| + | * B406 south old cirucit | ||
| + | ===Walcott=== | ||
| + | Phase 1 | ||
| + | * W401 south old circuit | ||
| + | * lounge quad outlet by cocoa pot | ||
| + | * lounge lighting | ||
Revision as of 03:39, 24 January 2007
Contents
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
East Campus Wiring
Phases are assigned arbitrarilly. Phase 1 for Bemis is not the same as phase 1 for Walcott.
Bemis
Phase 1
- B407 north old circuit
- B406 south old cirucit
Walcott
Phase 1
- W401 south old circuit
- lounge quad outlet by cocoa pot
- lounge lighting
