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  2. IBM 1750, 2750 and 3750 Switching Systems - Wikipedia

    en.wikipedia.org/wiki/IBM_1750,_2750_and_3750...

    Costs ranged from $150,000 to $600,000, plus up to $60,000 for the 3750's large room, air conditioning, and false flooring because of the extensive cabling between the three 3750 cabinets. By the time the 1750 was withdrawn from sales in 1988, there were some 300 systems installed in Europe. 1750s and 3750s were still in use in the year 2010 ...

  3. Universal remote - Wikipedia

    en.wikipedia.org/wiki/Universal_remote

    Harmony 670, a universal remote.. A universal remote is a remote control that can be programmed to operate various brands of one or more types of consumer electronics devices. . Low-end universal remotes can only control a set number of devices determined by their manufacturer, while mid- and high-end universal remotes allow the user to program in new control codes to the rem

  4. OpenWebNet - Wikipedia

    en.wikipedia.org/wiki/OpenWebNet

    The OpenWebNet protocol allows a "high-level" interaction between a remote unit and Bus SCS of MyHome domotic system. The latest protocol evolution has been improved to allow interaction with well-known home automation systems like KNX and DMX512-A system, by using appropriate gateways. The OpenWebNet protocol is disclosed on MyOpen community.

  5. HVAC control system - Wikipedia

    en.wikipedia.org/wiki/HVAC_control_system

    HVAC (Heating, Ventilation and Air Conditioning) equipment needs a control system to regulate the operation of a heating and/or air conditioning system. [1] Usually a sensing device is used to compare the actual state (e.g. temperature) with a target state. Then the control system draws a conclusion what action has to be taken (e.g. start the ...

  6. X10 (industry standard) - Wikipedia

    en.wikipedia.org/wiki/X10_(industry_standard)

    Function codes may specify a unit number code (1–16) or a command code. The unit number or command code occupies the first 4 of the 5 bits. The final bit is a 0 for a unit code and a 1 for a command code. Multiple unit codes may be transmitted in sequence before a command code is finally sent. The command will be applied to all unit codes sent.

  7. Talk:Universal remote - Wikipedia

    en.wikipedia.org/wiki/Talk:Universal_remote

    Japanese SANWA is one of first licensee who still now producing programmable remote with various eminent brand logo and supply as OEM. CL 9 was a universal remote control company started by Steve Wozniak may be possible first mass producer in U.S. market, but may not inventor. Some Japanese are surely licensee and Steve Wozniak is also possibly ...

  8. PLCBUS - Wikipedia

    en.wikipedia.org/wiki/PLCBUS

    Scalability: up to 64000 modules can be addressed. An address consists of a user code, house code and unit code to uniquely identify a module. The large number of addressable modules greatly decreases the chance of unwanted interactions with PLCBUS modules of neighbors, eliminating the need of filters.

  9. LonWorks - Wikipedia

    en.wikipedia.org/wiki/LonWorks

    LonWorks or Local Operating Network is an open standard (ISO/IEC 14908) for networking platforms specifically created to address the needs of control applications. The platform is built on a protocol created by Echelon Corporation for networking devices over media such as twisted pair, power lines, fiber optics, and wireless.