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Kelvin (symbol: K)

Scientific unit of temperature. Color temperature is measured on the Kelvin scale.

Conversion from
kelvins degrees Celsius °C = K − 273.15
degrees Celsius kelvins K = °C + 273.15
kelvins degrees Fahrenheit °F = K × 1.8 − 459.67
degrees Fahrenheit kelvins K = (°F + 459.67) / 1.8
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Kilowatt Hour (kWh)

KWH. A unit of measurement for electrical energy. One kilowatt hour equals 1000 watts of energy used for one hour.


Kilowatt Demand Limiting / KW Demand Limiting

An energy management strategy that reduces energy consumption when a system's electric power meter exceeds an operator-defined threshold.

When power consumption exceeds defined levels, the system automatically adjust setpoints, de-energizes low priority equipment, and takes other pre-programmed actions to avoid peak demand charges. As the demand drops, the system restores loads in a predetermined manner.


KNX is a standardized administered by the Konnex Association that is an OSI-based network communications protocol for intelligent buildings. KNX is the successor to, and convergence of, three previous standards:

• European Home Systems Protocol (EHS)

• BatiBUS

• European Installation Bus (EIB or Instabus)



Baud Rate = 10/100Mbit for Ethernet, 2400-9600 bits/sec for others


Hardware platform
• UART base for Twisted pair and powerline modem.
• Powerline modem device.
• 800-915Mhz FSK transceiever (ECHO)
• Ethernet modem


• Industrial Control & Building Control, Home Control