TCG140_R1.1 – May 2018
Page 9
The maximum cable length for an analog input should be up to 30 meters.
5.2.6.
Sensors connection
Up to 8 1-Wire sensors can be connected to TCG140 controller. The device supports all Teracom
1-Wire sensors.
1-Wire is a registered trademark of Maxim Integrated Products, Inc. It is designed to connect
several sensors over a short wiring. It is not suitable for long distances or environments with
EMC interference. We recommend reading Maxim’s 1-Wire tips at http://www.maxim-
ic.com/app-notes/index.mvp/id/148.
The sensors have three wires – positive voltage (+VDD), ground (GND) and bidirectional data
(Data). The colors of wires for every sensor are specified in its user manual.
It is strongly recommended to use “daisy-chained” (linear topology) for multiple sensors:
Summary of Contents for TCG140
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