# V2 Migration Guide

While CANnect V2 modules are a drop-in replacement for CANnect V1 modules, if you choose to mix and match the two versions there are a few caveats to be aware of:

* V2 does not support "loopback"
  * The spare pair of wires in V2 is left unconnected in all modules, this means that: Inject V1's "outbound CAN" cannot be used, and either a Direct V2 module or an external termination resistor must be used to terminate the bus.
* Direct V2 modules have an implicit orientation, care should be taken when wiring to ensure the devices are in their ideal orientation.
  * In order to most appropriately terminate the bus, make sure the modules have the "CANnect in" side pointing towards the Inject module, and the "CANnect out" side pointing towards the unconnected end of the chain.


---

# Agent Instructions: 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:

```
GET https://docs.swyftrobotics.com/electronics/swyft-cannect/v2-migration-guide.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
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.