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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 re
A JP1 Remote Control. A JP1 remote is a type of universal remote, usually with a six-pin interface connector labeled "JP1" in the battery compartment, manufactured by Universal Electronics Inc. The JP1 interface allows the remote to be reprogrammed, adding new code lists and functions. Home theater hobbyists use JP1 to avoid obsolescence.
Such a remote is very simple by design, usually only one button, and some with more buttons to control several gates from one control. Such remotes can be divided into two categories by the encoder type used: fixed code and rolling code. If you find dip-switches in the remote, it is likely to be fixed code, an older technology which was widely ...
Each bit of the RC-5 code word contains 32 carrier pulses, and an equal duration of silence, so the bit time is 64×27.778 μs = 1.778 ms, and the 14 symbols (bits) of a complete RC-5 code word take 24.889 ms to transmit. The code word is repeated every 113.778 ms (4096 ÷ 36 kHz) as long as a key remains pressed.
Many vendors whilst incorporating the full IEC 61131-3 requirements have additional vendor specific calls/function blocks to suit their hardware such as reading or writing to I/O. Siemens PLC instruction list language is known as "Statement List" or "STL" in English, and "Anweisungs-Liste" or "AWL" in German, Italian and Spanish.
Simple remote control systems use a fixed code word; the code word that opens the gate today will also open the gate tomorrow. An attacker with an appropriate receiver could discover the code word and use it to gain access sometime later. More sophisticated remote control systems use a rolling code (or hopping code) that changes for every use.
For example, with other universal remotes you can control everything separately by controlling one component at a time; one command at a time. With the Dimensia remote, just pushing the VCR button will turn on the VCR, turn on the monitor and then play the tape in the VCR, assuming there is one in the VCR. [5]
The GE-600 series is a family of 36-bit mainframe computers originating in the 1960s, built by General Electric (GE). When GE left the mainframe business, the line was sold to Honeywell , which built similar systems into the 1990s as the division moved to Groupe Bull and then NEC .