> For the complete documentation index, see [llms.txt](https://help.boomerang3.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.boomerang3.com/s2-radio-system-manual/s2-system-description/s2-pt100-pt1000-interface/connectors.md).
# Connectors
The interface is mounted inside an enclosure identical with S2 node enclosure.
There is a sensor port RJ45 socket on one side of the box. Connect the interface with S2 node with PT100 firmware using S2 - PT100 cable P/N RD003 connected to the S2 node sensor socket. The cable provides both the data connection and supply from the S2 node.
A round opening with a rubber grommet on the other side of the box is used to insert sensor cables into the enclosure.
S2 node with PT100 interface
S2 node with PT100 interface in DBU002/2 holder
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