There are two kinds of parallel port connector, which is 36 pin and 25 pin. 36 pin connector known as Centronics 25 pin connector and is known as DB25. Centronics first and was used from the DB-25 connector. DB-25 was introduced by IBM (along with DB-9, for the serial port), which aims to save space. Since the DB-25 is more practical, to koneksitor parallel port on the computer now only used DB-25.
On the computer, the parallel port connector is installed DB-25 female, thus connecting cable out is DB-25 male. Structure / form DB-25 appear
From 25-pin DB-25 connector, only 17 pins are used for bearer channels and information that serve as ground 8 pin. Seventeen information channel is composed of three parts, namely the 8-bit data; 5 status bits, and 4 bits control. Bit control and status function in the "handshake" in the process of writing data to the parallel port. Here is a table function of pin DB-25 connector.
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