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Command and Power together to one SDI coax cable?

Hello.

The customer of the industrial robot maker wants to realize follows with one coaxial cable.
Is there the application notebook of the approach to send a command and power together to one coaxial cable for SDI?


1. The customer wants to send camera images more than SXGA,30fps.
The distance to system unit and a camera more than 30-40m.
2. Put the commands (camera control and trigger signal) from system unit to a camera on a coaxial cable, and want to send it.
3. Put the power of the camera on a coaxial cable, and want to send it.

I suggested FPD-Link3, but FPD-Link3 has a short transmission distance.
Therefore, the customer thinks that transmission using SDI is better.

The thing which realized these functions with the SDI application product in the market exists.

Is there the application notebook of the approach to send a command and power together to one coaxial cable without influencing the characteristic of the SDI device?

Best regards,

K.Hashimoto.