I just want to ask, is the LPT Port in the PC has the same pinout configuration as the regular rs232 db25, i mean is the pin1 of the LPT is also the protective gnd, pin2 TxD etc . . .
I just want to ask, is the LPT Port in the PC has the same pinout configuration as the regular rs232 db25, i mean is the pin1 of the LPT is also the protective gnd, pin2 TxD etc . . .
No it's COMPLETELY different, it bears no resemblance at all to a serial port - even the voltage levels are completely different, and one is a serial port and the other a parallel port.
ok, i'am maybe confusing nigel and also correct if i'am wrong...
the LPT port is a parallel port, right(it has also 25 pins/holes)? and the db25 is parallel device, right?
i'am doing some project that needs to be interfaced with the printer port of the computer. i will connect a db25 unto the printer port. i need to know the pins/pinout config of the printer port, so that i can interface my project correctly...
ok, i'am maybe confusing nigel and also correct if i'am wrong...
the LPT port is a parallel port, right(it has also 25 pins/holes)? and the db25 is parallel device, right?
i'am doing some project that needs to be interfaced with the printer port of the computer. i will connect a db25 unto the printer port. i need to know the pins/pinout config of the printer port, so that i can interface my project correctly...
The DB25 is the physical size/shape of the socket, of course the signal pins are different.
In serial communication, there are RX and TX pin for data and several other for handshaking while in the parallel LPT port there are D0, D1...D7 data pins and other handshaking lines.
You do not have the pinouts of a DB-25 "device". What you have is the standard pinouts defined for an RS-232 interface when it is run through a DB-25 connector.