What is the name of the connector at the end of a telephone cable?
The four-position four-conductor (4P4C) connector is the standard modular connector used on both ends of telephone handset cords, and is therefore often called a handset connector. This handset connector is not a registered jack, because it was not intended to connect directly to telephone lines.
What is the difference between RS-232 and DB9?
The term DB-9 really pertains to the connectors on the end of the cables and not the cables themselves. DB9, for example, is a 9 pin connector for a serial cable. You can see one here. RS-232, on the other hand, refers to the standard itself.
What is a de 9 connector?
The DB9 connector (originally named DE-9) is an analog socket, with 9 pins, from the D-Subminiatures (D-Sub) connector family. The DB9 connector is mainly used in serial ports, allowing asynchronous data transmission according to the RS-232 standard (RS-232C).
What pins for serial communication?
Serial communication devices make use of 9 or 25 pin D-type connectors for their cabled connections. They are commonly designated as DB-9 or DB-25 with the number used to differentiate between the pin counts.
What cable is used for RS232?
You will probably recognize the standard 9 pin DB9 cable. Simply put, a RS232 connection transmits signals using a positive voltage for a binary 0 and a negative voltage for a binary 1.
What is a de 9 port used for?
Many early PC designs used DB9 serial ports to communicate with other computers or hardware devices. This 9-pin layout become a de facto hardware standard that enabled device manufacturers to create products that worked on a wide range of computer platforms.
What is a 9-pin serial port used for?
DB9 connectors were commonly used for serial peripheral devices like keyboards, mice, joysticks, etc. Also they are used on DB9 cable assemblies for data connectivity. Today, the DB9 has mostly been replaced by more modern interfaces such as USB, PS/2, Firewire, and others.