> For the complete documentation index, see [llms.txt](https://docs.influxtechnology.com/support_guides/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.influxtechnology.com/support_guides/rexgen-series-product-manuals/rexgen-1/rexgen-1-product-manual/hardware-functions-and-accessories/hardware.md).
# Hardware
### Installation
The contents below specify the conditions required for the operation of ReXgen1.
**GROUNDING**
Since providing a common ground between nodes is not required, it is possible to have ground offsets between nodes. Each node may observe different single-ended bus voltages (common mode bus voltages) while maintaining the same differential voltage. Operating a CAN system with large ground offsets can increase electromagnetic emissions. If the system is sensitive to emissions, steps must be taken to eliminate ground offsets.
**TERMINATION**
ISO-11898 requires that the CAN bus have a nominal characteristic line impedance of 120Ω. Therefore, the typical terminating resistor value for each bus end is 120Ω. Bus termination is used to minimise signal reflection on the bus.
**SUPPLY VOLTAGE**
It is always recommended to keep the nominal voltage within the specified range. The device also has internal protection against low-energy voltage events due to supply wire noise.
**ISOLATION**
CAN Bus and USB are not isolated; care must be taken when plugging the USB into the device. Removing the power supply when the device is interfaced with a PC via a Micro USB cable is advised.
{% hint style="warning" %}
**Notes:**
* The CAN Bus Isolator and USB Isolators can be purchased separately.
* Please do not use the logger's USB port for data logging, as it may damage the port and will not be covered under warranty.
{% endhint %}
**MOUNTING**
Always mount the device in a way that minimises vibration exposure and accounts for its IP rating. ReXgen1 includes four screws to assist with mounting.
---
# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.
## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:
```
GET https://docs.influxtechnology.com/support_guides/rexgen-series-product-manuals/rexgen-1/rexgen-1-product-manual/hardware-functions-and-accessories/hardware.md?ask=&goal=
```
`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.