Chassis Ground/Signal Ground Interconnect
Chassis ground/Signal ground interconnect
The "Chassis ground" electrical net is connected to the "Signal ground" electrical net through a network as shown in the figure above. This prevents against significant voltages to be developed between the two nets.
Together with the cable shield and resistor, it provides an additional path for the (DC) return current of the camera power supply.
Notes
- The "Chassis ground" net includes, the metallic bracket and the metallic shell of the connectors mounted on the bracket.
- The "Signal ground" net is actually the reference potential for all the on-board electric circuits.
- It is mandatory to firmly attach the bracket on the chassis by means of the screw. This establishes a good electrical path between the card bracket and the chassis of the PC and hence avoids excessive current into the diodes.