TB20, strain gauge weighing module | Edition 1 | 21.12.2018
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Example: Peripheral module with 20-pin front connector
2.2.3
Power and isolation module
The system’s bus coupler provides the supply voltage for the communications bus (5 V, top) and for
external signals (24 V, bottom). These voltages are passed from module to module through the base
modules.
Power and isolation modules make it possible to segment the power supply for external signals into
individual power supply sections that are powered separately. The communications bus signals and
supply voltage for the communications bus are passed through, in contrast to the way they are
handled in power modules (see section 2.2.4).
Power and insulation modules have a lighter body color.
