TIG28 to Blackmagic Camera

[Robert Buncher]

I need to make a cable to send time code and audio from a TIG to a Blackmagic camera. So the BMC has two 1/4 inputs which are balanced. I want to send the TC to one channel and audio to the other channel. I'll be splitting these from the 1/8 connector. How would I wire this?

Thanks,

Bob

[Boomboom]

On the Tig side it's:

Tip-time code

Sleeve-ground

If you want to use the audio pass-thru function, audio signal is on the Ring pin.

I don't have the BM pinout but you can complete the equation when you get it.

[Robert Buncher]

Thanks Pierre,

 

My concern was sending an unbalanced signal into a balanced input. Up until now I had been sending just an audio signal from a G2 to the BMC. I would jump the shield and ring on the G2 1/8 and connect them to the shield on the BMC 1/4 and then connect the G2 tip to the BMC tip. This works fine.

 

It seems my option with sending both TC and audio is possibly:

TIG 1/8         to      BMC 1/4 x2

Shield           to      Shield Left and Right

Tip (TC)         to      Tip Left (TC)

Ring (Audio)  to      Ring Right (Audio)

 

I'll try this but I think there will be the problem of unbalance into balanced.

Bob

[Eric Toline]

It will work fine. You're sending an unbalanced feed into an unbalanced connection. Basically it's just like a headphone connection with L & R audio and a common ground. Remember that TC is an audio signal.

[Robert Buncher]

Thanks Eric.

Bob