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<\/a><\/a>Now the controller has a DE-9 port (and another mini-DIN 8-pin plug to daisy chain further to units like the BKM-14R probe) which therefore requires an adapter cable to the mini-DIN. <\/p>\n\n\n\n
<\/a>The cable didn’t come with my remote, so I needed to make a new one. Searching the internet brought me to the shmups forum where this picture exists:<\/p>\n\n\n\n
<\/a>The top picture is the DE-9 port of the BKM-10R and the bottom is the mini-DIN. Unfortunately the BKM-11R does *not* use the same pinout as the BKM-10R seemingly, because making a cable from the above doesn’t work. I opened up the remote and could see that ground and 5V were definitely not the same, so I started searching for answers. Although 5V and GND are easy to measure out, the TX\/RX pairs are not so easy as they’re seemingly buffered by the remote for the mini-DIN port.<\/p>\n\n\n\n
I was unable to find a service manual documenting the the remote, so I was kinda lost. The next step was of course to disassemble the remote further to see if I could decipher further, but then awesome guy Steve Nutter of Retro Tech (he does a lot of informative CRT related videos on YouTube, check it out if you don’t know him https:\/\/www.youtube.com\/channel\/UCwOTvOtoAjiqQx1PCrfmTKw) measured a working cable out, which then made it easy to make a replacement. The pinout is as follows (pin numbers are as a normal DE-9 plug):
1 – NC
2 – RXD
3 – TXD
4 – NC
5 – GND
6 – 5V
7 – ~TXD
8 – ~RXD
9 – NC<\/p>\n\n\n\n
Thus to make a cable, using this pinout, along with the information fromt the shmups post by xga, the connection needs to be like this:<\/p>\n\n\n\n