> For the complete documentation index, see [llms.txt](https://inacks.gitbook.io/is4310-485m2-wiki/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://inacks.gitbook.io/is4310-485m2-wiki/bus-recommendations/topology.md).

# Topology

In an RS485 setup without a repeater, a single trunk cable runs through the system, with devices connected in a daisy-chain manner. Short cables derivations (stubs) are also allowed but not recommended. Keep the derivation distance as short as possible. Other topologies are not allowed.

<figure><img src="https://260302474-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FuAnZEHpZepEhJJZUAwOG%2Fuploads%2FuehOj8xDChKsq3Uay7Pn%2FEvadrw0043r2.png?alt=media&amp;token=c839e1d3-205c-401e-8bfb-be880d04cef0" alt="" width="563"><figcaption><p>IS4310-485M2 Bus Topology Recommendations</p></figcaption></figure>