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Making a PlayStation Link cable
Posted: December 7th, 2018, 3:54 am
by KDan
Hi! I just wanted to make my own link cable but I couldn't find any pinouts for it. Do I have to swap only RX and TX?
Re: Making a PlayStation Link cable
Posted: December 7th, 2018, 1:28 pm
by LameGuy64
You can find the pinout right here:
http://hitmen.c02.at/html/psx_siocable.html
I built my own link cable by using the same wiring as a standard null modem cable but adjusted to go in line with the PlayStation's serial pinout. Handshake lines must be wired accordingly in case of games that use handshaking.
If you don't mind modding a pair of consoles replacing the proprietary Serial I/O port with a DB9 would make creating cables much easier.
Re: Making a PlayStation Link cable
Posted: December 9th, 2018, 2:51 am
by KDan
LameGuy64 wrote: ↑December 7th, 2018, 1:28 pm
You can find the pinout right here:
http://hitmen.c02.at/html/psx_siocable.html
I built my own link cable by using the same wiring as a standard null modem cable but adjusted to go in line with the PlayStation's serial pinout. Handshake lines must be wired accordingly in case of games that use handshaking.
If you don't mind modding a pair of consoles replacing the proprietary Serial I/O port with a DB9 would make creating cables much easier.
Do I have to connect the 3.3V too? I made a cable without the 3.3V line connected and I tried to play Duke Nukem 3D in multiplayer but it didn't work.
Re: Making a PlayStation Link cable
Posted: December 9th, 2018, 11:21 am
by LameGuy64
No, don't connect the 3.3v line as that would likely fry something on the console.
Have you followed the standard null modem cable wiring when making the serial cable? (ie. tx -> rx, rx ->tx)
Re: Making a PlayStation Link cable
Posted: December 9th, 2018, 11:42 am
by KDan
LameGuy64 wrote: ↑December 9th, 2018, 11:21 am
No, don't connect the 3.3v line as that would likely fry something on the console.
Have you followed the standard null modem cable wiring when making the serial cable? (ie. tx -> rx, rx ->tx)
I connected it like this on both sides:
DSR - DTR
RX - TX
RTS - CTS
GND - GND
Re: Making a PlayStation Link cable
Posted: December 9th, 2018, 1:05 pm
by LameGuy64
You're missing a few handshake lines. I think you need all handshake lines for it to work properly as some games likely need it.
Here's a reference to wiring a null modem cable with full handshaking:
https://www.lammertbies.nl/comm/info/RS ... .html#full
Re: Making a PlayStation Link cable
Posted: December 9th, 2018, 1:55 pm
by KDan
I wrote I've done it on both sides. This is what I think by that:
DSR - DTR
DTR - DSR
RX - TX
TX - RX
CTS - RTS
RTS - CTS
GND - GND
Sorry for inaccuracy.
Re: Making a PlayStation Link cable
Posted: December 10th, 2018, 12:57 am
by LameGuy64
Well, the best advice I can give you by this point is to double check your wiring and make sure they are all correct.
Re: Making a PlayStation Link cable
Posted: January 4th, 2019, 3:41 am
by Xrider
