Advantech RS-485 user manual Figure F-10 Double isolated cable

Grounding Reference

•Single isolated cable

Above diagram shows you the structure of the isolated cable. You can see the isolated layer spiraling Aluminum foil to cover those wires. This spiraled structure makes an isolated layer for isolating the cables from the external noise.

Figure F-10: Double isolated cable

•Double isolated cable

You can see the double isolated cable structure as figure 10. The first isolated layer spiraling Aluminum foil covers those wires. The second isolated layer spiraling and crossing several nude conductors cover the first layer shielding and those wires. This spiraled structure makes an isolated layer for isolating those external noise.

F-10 ADAM-5000