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Rs 232 Wire4/19/2021
You can find out all about our dear old little friend, the humble RS232 port.Take a look at the table below, although it does looks a bit boring Ill agree, actually says what the RS232 pinouts designation is.Ive gone through their meanings on the RS232 Pinouts page so forgive if I dont repeat it again here.Then youll feel much more at ease when someone starts spouting off the jolly ole jargon.
Hmm whys that then Well theyre both the same RS232 port but different connectors, there thats not so bad so far is it. The reason for the 9 pin and 25 pin connectors is the 25 pin came along first. Then the RS232 wiring was condensed into the 9 pin connector, a victim of evolution if you like. Rs 232 Wire Software Is FooledBy short-circuited please understand I dont mean fizzle bang short circuit No no, just linked out so the software is fooled into thinking its got the full RS232 protocol connection. All the other connections (the handshake lines) are simply left hanging in the breeze Poor things. With the exception of the handshake lines are looped back into the respective RS232 wiring signals. These are the RTS and CTS, request to send and clear to send. So not quite a fully fledged RS232 cable but its a bit more grown up. It will allow the fastest connection speed but only if the software has been specifically written to do this. Why Because it the most friendly... No Im joking, its because its actually the most compatible with the older and newer flow control. As its more friendly than the first two and not as aloof as the last one. This little gizmo, well does what its call, it converts a 9 pin D type RS232 connector to a 25 pin D type RS232 connector.
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