Lightning protection guide by OBO

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Last revision 2020

Vydal: OBO BETTERMANN s. r. o. Autor: OBO BETTERMANN

Strana 250 z 288

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OBO also offers host pro- tective devices that are simple install, depending on the particular application. Interfaces External devices such printers, scanners and con- trol systems activated via serial parallel interfaces must additionally integrated into the surge protec- tion concept. The system can de- signed for maximum eight data lines, although two are always used send and receive lines. TBS Blitzschutz-Leitfaden 2018 / en / 2020/01/10 14:42:40 14:42:40 (LLExport_02613) / 2020/01/10 14:42:54 14:42:54 250 Chapter The internal lightning protection system . The American nomenclature, however, the most widely used. • TTY system Unlike the RS232 other serial interfaces, the TTY system not voltage-controlled instead delivers an imposed current (4–20 mA).2 km with data rate Mbit/s (dependent upon seri- al controllers).2.5 Data technology Data technology used wide range applica- tions. • RS485 interface The RS485 industrial bus interface differs slightly from the RS422 that the RS485 enables the connection of several transmitters and receivers (up users) via protocol.3. The stand- ard includes cable and connector types such as RJ45. The maximum length this bus sys- tem, when twisted-pair cables are used, approx. used, for example, for modems and other peripherals. The Amer- ican nomenclature, however, the most widely used. Al- though now largely replaced the USB interface, the RS232 standard still frequently used for control lines. This enables cable lengths several hundred metres realised. • RS422 interface The RS422 serial high-speed standard suitable for communication between maximum ten users, which designed bus.3. • V24 interface V24 the German designation for RS232. • RS232 interface The RS232 frequently used interface. extends from the simple installation print- er connected complex networks with sever- al thousand clients. Specified data transmission rates range from Mbit/s much Gbit/s today, and the data can transmitted over both clas- sic copper cables and fibre optic cables. There range interfaces for different applica- tions: from bus lines for telecommunication and data transfer through simple terminal devices such as printers scanners. Ethernet Ethernet the standard technology for networked computer systems today. • V11 interface V11 the German designation for the RS422. 1. all cases, careful planning of surge protection measures required, taking account of the data interfaces hand