В области телекоммуникаций под термином последовательное соединение понимают процесс пересылки данных по одному биту за раз (последовательно) по каналу связи или компьютерной шине. Это противопоставляется параллельному соединению, в котором несколько бит отсылаются одновременно по соединению с несколькими параллельными каналами. Последовательное соединение используется для всех протяженных коммуникаций и большинства компьютерных сетей, где стоимость кабеля и сложности с синхронизацией делают использование параллельного соединения неэффективным. Последовательные компьютерные шины становятся все более распространенными даже на коротких расстояниях, по мере улучшения обеспечения целостности сигнала и скорости передачи данных в новых технологиях последовательной передачи. Примером является переход с PCI на PCI Express.

Распиновки для / Cisco / HP / IBM or follow to 25 OLD hardware pinouts.
  • Apple Thunderbolt The Thunderbolt is the propriteary interface allows the connection of external peripherals to a computer. It combines PCI Express and DisplayPort into one serial signal alongside a DC connection for electric power, transmitted over one cable.
  • EIA/TIA-562 serial interface TIA/EIA-562 is a very similar to TIA/EIA-232-F with data rates up to 64 kbps supported.
  • EIA/TIA-694 serial interface This is an electrical standard, similar to RS-232-F, but with data rates up to 512 kbps support.
  • ITU-TSS V.35 interface Basically, V.35 is a high-speed serial interface designed to support both higher data rates and connectivity between DTEs or DCEs over digital lines.
  • PC serial port (RS-232 DE9) This RS232C DE-9 (usually miscalled DB-9) port is available in some PCs and many other devices. An RS-232 serial port was once a standard feature of a personal computer, used for connections to modems, printers, mice, data storage, uninterruptible power supplies, and other peripheral devices.
  • RS-232 (EIA-232) serial interface RS-232 is the standard serial communications interface found on many types of equipment such as computers, modems, printers, Microcontrollers, eprom programmers, and a host of other devices. RS232 pinout may be varied.
  • RS-366 interface 
  • RS-422 (9 pin) 
  • RS-422 (EIA-422) serial interface RS422 is a balanced serial interface for the transmission of digital data. The advantage of a balanced signal is the greater immunity to noise. The EIA describes RS422 as a DTE to DCE interface for point-to-point connections.
  • RS-423 (TIA/EIA-423-B) serial interface It is similar to TIA/EIA-232-F, but features a reduced driver output swing and higher data rates.
  • RS-449 (EIA-449) interface The RS449 interface is a generic connector specification. It´s not an actual interface. The connector pinning was originally designed to support RS422 for balanced signals, and RS423 for the unbalanced signals. And should have been the succesor of RS232.
  • RS-449 (EIA-449) Secondary Common names: EIA-449, RS-449, ISO 4902. Secondary (auxilary) channel
  • RS-485 (EIA-485) serial interface has no common pinout
  • RS-530 (EIA530) interface EIA-530, or RS-530, is a balanced serial interface standard that generally uses a 25 pin connector. The RS530 isn't an actual interfaceis, but a generic connector specification. The connector pinning can be used to support RS422, RS423, V.36/V.37/V.10/V.11 (not V.35!) and X.21 to name the most popular ones.
  • RS232 serial to USB converter схема кабеля cable for interconnection of USB and RS232 serial interfaces
  • RS232 to RS422 cable electrically isolated RS422 communication interface to the PC serial port
  • RS232 to RS485 cable electrically isolated RS485 communication interface to the PC serial port
  • RS232 to TTL serial cable i.e. this cable may be used for wiring cellular phone to PC
  • Serial (Printer) 
  • TI Silent 700 Electronic Data Terminal EIA/Auxiliary Coupler The Model 745 was a late-70s dumb terminal with built-in acoustic coupler, with an external connection for direct computer or external modem use.

: Распиновки для Cisco

: Распиновки для HP

: Распиновки для IBM

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