Wiring

Serial Bus Topology

Method of connecting components in different types of buses - linear, tree, star, and ring topology. Recommendations for the correct connection of TapHome modules.

Bus Extender — Wiring and Bus Termination

Bus 1–4 ports on the Bus Extender, when to use a galvanically isolated port, where the 100 Ω termination resistor goes depending on the topology, and four wiring diagrams.

Optical Bus Isolation

Galvanic separation of RS-485 and Modbus buses with a bidirectional optical isolator. Basic ESD protection on the SLAVE side; the SLAVE side needs its own power supply.

Surge Protection

Essential surge protection for RS-485 and Modbus buses in exterior areas. Includes protection for power supplies and current loops. Prevents voltage damage with multi-stage circuits.

PWM converter for a 0–10 V output signal

PWM-to-0–10 V signal converter for centralized lighting control in larger spaces and industrial facilities. Powered from the same 24 V DC power supply as the TapHome modules, with simple calibration.

Modbus RTU Wiring Examples

Rules and examples for connecting devices to the Modbus RTU line with TapHome control system. Information about wiring, addressing, and communication parameters.

CT Clamp — Current Measurement via Analog Input

How to connect a CT clamp (current transformer) with 0-10V output to TapHome universal input for continuous current measurement.