So I've a tiny question to ask , I've been using my mpu 401 just fine since I got it but after doing some research I've noticed that the texelec wiki mentions that the cable needs pins 13 an 25 wired together.

Is there any real practical reason for this? , the cables pins from both sides appear to go to ground so I'm not sure what the purpose is. Though it seems the mpu side might also be connected to a capacitor.

I've been using a straight through cable without any issues so hopefully nothings fried.