wiring - SmartIntego specifications

You release the spring-loaded terminals of the RS-485 bus connection by pressing the orange lever inwards with a suitable object (e.g. slotted screwdriver) and pulling the cable carefully at the same time.

The wiring for initial operation consists of three parts:

  1. Wiring of the bus subscribers (see Wiring the routers)
  2. Connection of the configuration device (see Wiring with the configuration device)
  3. Connection to the integrator system (see Wiring with the integrator system)

NOTE

notice

Communication error due to poor contact

If the contact between a connector and the corresponding cable is not good, communication errors may occur.

  1. Make sure that all subscribers have a stable connection to shielding and ground potential.

Increased interference immunity due to twisted cores

If you are using a cable that is twisted in pairs, make sure that the data lines A and B occupy a pair of wires that are twisted together.

In principle, you must always terminate the ends of an RS-485 bus with a length of 100 m or longer. Use suitable resistors (100 Ω to 120 Ω, recommended: 120 Ω). If you also terminate the RS-485 bus below a length of 100 m, you further increase the operational safety. SimonsVoss therefore always recommends terminating both ends of an RS-485 bus. Connect the positive data line (B) and the negative data line (A) at each end with a suitable resistor. If you use a leaded resistor, you can use the contacts of the double sockets that are not assigned at the ends of the RS-485 bus cable.