Advantech RS-485 user manual Some Suggestions on Wiring Layout

ADAM-4000/5000 System Grounding Installation

E.6 Some Suggestions on Wiring Layout

ØSince communication is carried through high-frequency signals, it is advisable that the wiring layout should be paid due attention to. Any wire should best remain as a single integral wire. Nevertheless, if you should need another wire for extended connection, it is suggested that you use soldering iron to connect the disparate wires together. The parts of copper mesh should be soldered together too.

ØGenerally, factories will layout the power lines, control lines, signal lines and communication lines within separate conduits. Since communication lines and signal lines are most susceptible to interference, you should consider avoid laying them parallel with any power line in close distance. Nevertheless, if they should remain parallel with the power line, just keep a proper distance between them. Basically, an AC current up to 2A should require a distance of 50 cm. The bigger the current or voltage, the longer the distance is required.

ØFor communication lines and AI/O signal lines, it is suggested that they should be carried within Zinc-gilded tube for crush resistance. Meanwhile, one end of the zinc-gilded tube should be connected to factory facilities and grounded together.

ØWhile planning your wire layouts, you should consider layouts that can save wire length.

E-6 ADAM-5000