User Manual

TSM400-4-CPTH_R1.0 – August 2022 Page 4
Attention:
For proper operation of the interface, terminators (120 ohms resistors) must be installed at both ends of the
bus. The device has a built-in 120-ohm resistor and to terminate the line, “B-“ and “TERM” must be
shortened.
A daisy-chained (linear) topology for multiple sensors should be used. UTP/FTP cables are
mandatory for interconnection.
7. Installation tips
The location and the mounting position of the sensor have a direct effect on the accuracy of the
measurement. The tips below will ensure good measuring results:
•
Sensor shall be installed about 1.2-1.4 m above the floor;
•
To avoid solar radiation, the sensor should not be installed next to windows or directly in
the sunlight;
•
Sensors shall be installed in a place with sufficient air circulation.
TSM400-4-CPTH sensor is intended for installation on a cavity wall box with 68mm diameter and 61
mm screw spacing.