The Echelon submeter is a kilowatt-hour (kWh) energy and power meter that communicates on a LonWorks network and measures 1, 2, or 3 phases with voltages from 120 to 600 Vac and currents from 5 to 6,000 amps in delta (line-to-line) and wye (line-to-neutral) configurations.
Communication
Protocol: Echelon’s® LonTalk® (ANSI/CEA-709.1-B-2002, EN 14908, GB/Z 20177.1-2006)
Transceiver: Echelon TP/FT-10
Bit Rate: 78 kbps
Maximum Nodes: 64 per subnet
Maximum Distance:
Free Topology: 500 meters
Bus Topology: 2700 meters
Maximum Stub Length:
Free Topology: Unlimited
Bus Topology: 3 meters
Electrical
Line powered
Operating Voltage Range: –20% to +15% of nominal
Power Line Frequency: 50 or 60 Hz
CT Input: 0.333 Vac nominal, 0 to 0.5 Vac operating, 3 Vac maximum