> For the complete documentation index, see [llms.txt](https://help3.depence.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help3.depence.com/depence-construction/depence-connect-dependencies.md).

# Connect Dependencies

Dependencies are logically connected between fixtures. These can share information on water (pressure, flow rate, etc), lighting or power. Dependencies are elemental, especially for fountain devices.

![](/files/-MhI_kYufZO2ZTkAC6-u)

*A classic example: Nozzles connected to valves, which are further connected to a water distributor, which gets finally powered by one or more pumps.*

In general, there are two types of fixtures:

**Active Fixtures:**\
All fixtures, which are delivering information and are usually DMX controlled like pumps or valves.

**Passive Fixtures:**\
All fixtures, which do only have dependency connectors waiting for an input signal. Like nozzles.

Passive fixtures, which are added to the scene, will always simulate input of 100% until they get connected to an active fixture. For example, a nozzle fixture will emit water even if it's not connected to a pump. This behavior makes the scene-building process easier.