This gear receives MIDI stream and distribute it to 4 MIDI outputs.
When you want to send MIDI stream to independent MIDI device then this gear may help you.
this gear has photo-isolated MIDI In and separate drive for each MIDI Out. it works as same as normal MIDI gear.
AC adapter is option. Don’t forget to get it.
You can add one more buffered output ch by adding another DIN socket. It may be matched to built-in board in your box for DIYer.

The Guide Of Modifications

You can add one more MIDI through port adding DIN5 Pin connector for yourself. Check next picture . It’s right side of the board and just next power indicator LED.
About pin structure of DIN, check next fig.

DIN5 plug pin structure

When you put this item for your DIY projects, then you should better get another power source from inside of your own project.
next picture is just another side of the board. check the polarity so closely and connect +9V and ground together with your equipment.
Just putting it another enclosure, you may need power switch. then remove Jumper line and connect your power switch there.

 

As you know, there is no warnnary about modifications. Do it for your own risk!