TCG120-4_R1.3
–
May 2022
Page 6
“Star” topology
can be used only as a last resort for up to 4 sensors and total cable length up to
10 meters:
It is strongly recommended to use only UTP/FTP cables and keep the total cable length up to
30m. Although functionality has been achieved in the longer distance, we cannot guarantee
error-
free operation over mentioned wiring length. We recommend reading Maxim’s 1
-Wire tips
at https://www.maximintegrated.com/en/design/technical-documents/tutorials/1/148.html.
We guarantee proper operation only with Teracom 1-Wire sensors.
5.2.3.
Digital inputs connection
Attention!
Digital inputs are NOT galvanic isolated.
The TCG120-
4 digital inputs can be used as “dry contact” only.
The term “dry contact” means that to this input can be connected devices with an open drain or
relay outputs - door contact switch, push-button, PIR detector, etc.
Содержание TCG120-4
Страница 1: ......
Страница 46: ...TCG120 4_R1 3 May 2022 Page 46 Appendix C Fig 1 Fig 2...