Universal powerline bus
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Universal Powerline Bus (UPB) is a
proprietary software Proprietary software is software that is deemed within the free and open-source software to be non-free because its creator, publisher, or other rightsholder or rightsholder partner exercises a legal monopoly afforded by modern copyright and i ...
protocol developed b
Powerline Control Systems
for
power-line communication Power-line communication (also known as power-line carrier or PLC) carries data on a conductor that is also used simultaneously for AC electric power transmission or electric power distribution to consumers. A wide range of power-line communicat ...
between devices used for home automation. Household electrical wiring is used to send digital data between UPB devices via
pulse-position modulation Pulse-position modulation (PPM) is a form of signal modulation in which ''M'' message bits are encoded by transmitting a single pulse in one of 2^M possible required time shifts. This is repeated every ''T'' seconds, such that the transmitted bi ...
. Communication is peer to peer, with no central controller necessary. UPB addressing allows 250 devices per house and 250 houses per transformer, allowing over 62,500 total device addresses and can co-exist with other powerline carrier systems within the same home. , UPB enjoys one of the broadest range of device types when compared to most protocols and has support from some major manufacturers in the home automation space. Most notably,
Leviton Leviton Manufacturing Company, Inc. is an American manufacturer of electrical wiring equipment in North America. It produces electrical light sockets, receptacles and outlets, switches, dimmers and other lighting control systems, wire, power ca ...
and thei
Omni
series of home automation products, as well as the UP
devices
they market. UPB is also supported by many major home automation software manufacturers. A few of which are listed below.


Reliability

UPB is a highly reliable protocol for home automation. It is not susceptible to RF interference, signal blockage by walls or short distance broadcast issues like some wireless protocols. UPB transmits on the building's existing wiring and has extensive noise reduction circuitry. This allows it to traverse long distances without issues, even across multiple electrical panels, making it ideal for very large homes. Appliances that have traditionally plagued X10 devices, usually do not affect UPB. In fact, UPB signals can reliably be received by the target device even with significant amounts of electrical noise on the power lines. However, in the event that an appliance in your home causes extreme interference when operating, an inexpensive wire-in noise filter can be applied at the circuit breaker panel to solve the issue.


Interoperability

, control of UPB devices is supported by th
Home Assistant
open source software (in version 0.110 and later). , control of UPB devices is supported by the
OpenHAB open Home Automation Bus (openHAB) is an open source home automation software written in Java. It is deployed on premises and connects to devices and services from different vendors. As of 2019, close to 300 bindings are available as OSGi modules ...
open source software. HomeSeer is a well known commercial home automation software package that has support for UPB. Mobile App support (IOS and Android) is available by using the PulseWorx Gateway (PGW) plug-in module. Voice recognition products such as Alexa
Automated Living's HAL
and Google's Assistant are supported either directly or indirectly through a device or automation controller. UPB can coexist with other powerline technologies. It can also interoperate with other automation devices that use RF (for example) through the use of a multi protocol automation controller (See Leviton Omni, HomeSeer devices). This allows for a mixed technology automation system to achieve best in class devices from many manufacturers. However, it is interesting to note that unlike most wireless protocols, UPB does not require an automation controller or hub to operate. Since UPB is a peer to peer protocol, individual switches, scene controllers and various types of plug-in modules can be individually programmed to do multiple tasks without the need to purchase a hub or controller. Some examples of actions that can be achieved without a hub or controller would be: timed shutoff of a bathroom fan (timer plug-in module or a switch with timer feature built-in), lights turning on or off based on a photocell's sensing of sunlight (I/O plug-in module), turning on one set of lights with a single tap of the switch and turning on another set of lights or devices on a double tap of the switch (dimmer switch). Turning on/off a Hot Tub (load controller switch), multiple preset light dimming settings (scene controller switch), turn on/off a motorized device (relay switch). Scene controllers with built in Infrared (IR) sensors are available. This allows for a single programmable remote control (universal remote) like those made by
Logitech Logitech International S.A. ( ; often shortened to Logi) is a Swiss multinational manufacturer of computer peripherals and software, with headquarters in Lausanne, Switzerland, and Newark, California. The company has offices throughout Europe, ...
to control both your lighting and your television or other media devices.


Hardware Manufacturers

The following is a list of UPB device manufacturers. This is not a comprehensive list:
Advanced Quonset Technologies

Leviton
HLC line
Powerline Control Systems
PulseWorx line
Simply Automated

Web Mountain



References

{{Home automation Home automation Networking standards