- Posts: 13
- Joined: Fri Dec 04, 2020 7:39 pm
- Real Name: Dave Roberts
We have an ATEM HD Television switcher unit and various SDI splitter boxes, SDI cables and SDI to HDMI converter boxes. All of the equipment is from BMD.
Many years ago, when we installed the ATEM, we were driving an existing set of projectors. We had some occasional signal dropouts. Nothing major, but we put it down to the poor projector USB port powering the SDI to HDMI converter.
We have recently upgraded the projectors to 86" monitors and found we have exactly the same problem...
We have been swapping one thing at a time to try and isolate where the problem is. We are slowly eliminating things, and it is looking like an earth/ground issue.
Unfortunately, the problem is not 100% repeatable.
I have everything fed from a single distribution board - driving the equipment from separate breakers from the DB. An electrician has installed (and certified) the mains installation.
Basically, we have an ATEM driving a BMD 8-way splitter with insulated SDI cable runs to the monitors. Each monitor has a BMD SDI to HDMI converter (fed from a USB3 power cable sourced from the monitor itself).
As we suspect an earth/ground issue, what are the recommendations regarding the earthing/grounding of the SDI shield?
It looks like the mains PSU feeding the SDI splitters is a class II device (so no earth).
Any help gratefully received...
Dave
Many years ago, when we installed the ATEM, we were driving an existing set of projectors. We had some occasional signal dropouts. Nothing major, but we put it down to the poor projector USB port powering the SDI to HDMI converter.
We have recently upgraded the projectors to 86" monitors and found we have exactly the same problem...
We have been swapping one thing at a time to try and isolate where the problem is. We are slowly eliminating things, and it is looking like an earth/ground issue.
Unfortunately, the problem is not 100% repeatable.
I have everything fed from a single distribution board - driving the equipment from separate breakers from the DB. An electrician has installed (and certified) the mains installation.
Basically, we have an ATEM driving a BMD 8-way splitter with insulated SDI cable runs to the monitors. Each monitor has a BMD SDI to HDMI converter (fed from a USB3 power cable sourced from the monitor itself).
As we suspect an earth/ground issue, what are the recommendations regarding the earthing/grounding of the SDI shield?
It looks like the mains PSU feeding the SDI splitters is a class II device (so no earth).
Any help gratefully received...
Dave