---
title: "Configure system settings"
canonical: "https://help.vicon.com/space/Nexus216/11602219/Configure%20system%20settings"
format: markdown
---
You specify system-wide settings in the **System Resources** pane, by clicking on the top-level node called **Local Vicon System**. This node is displayed when Nexus is in Live mode (if necessary, click the **Go Live** button to see this node). It contains sub-nodes for each device connected to your Vicon system.

![image](media://62929319-2a2e-40ab-af0f-853011c50f83)

If you have saved any system configurations (.system files), before changing **Local Vicon System** settings, ensure the required configuration is selected at the top of the **System Resources** pane (see [Manage configurations in Vicon Nexus](https://vicon-help.atlassian.net/wiki/spaces/Nexus216/pages/11609390)).

The **Local Vicon System** node provides access to system-wide properties, enabling you to:

- Configure the Vicon system capture rate and the amount of memory allocated to Nexus for motion capture.
- Manage the way Nexus produces real-time 3D representations of the subjects whose motion is being captured.
- Specify the identification and connection settings for the Nexus host PC.
- Specify video standards and timecode options.

> Macro (scroll-pagebreak)

**To change Vicon system settings:**

1. If Nexus is currently offline, in the **Resources** pane, click **Go Live**.
2. On the **System** tab, click the **Local Vicon System** node.
3. In the **Properties** pane at the bottom of the **System** tab, view or change the settings to suit the needs of your motion capture application.   
When you set up your Vicon system, ensure that the **Requested Frame Rate** value in the **System** section is appropriate.  
The **Requested Frame Rate** is the rate (in Hz) at which to synchronize the Vicon cameras. Depending on whether you use an external video signal, select the required setting:
  - If you don't use an external video signal (and therefore haven't set the **Genlock Standard** (an Advanced property: see Step a. below), the default setting of 100 Hz is suitable for a range of common applications, so unless you have a specific requirement for a different value, don't change it.
  - If you use an external video signal:
    - To view all the available properties for **Local Vicon System**, at the top right of the **Properties** pane, click **Show Advanced**.
    - From the **Genlock Standard **list (an **Advanced** property), ensure the correct video standard (**PAL**, **NTSC**, **Film, VESA, SDI**, etc) is specified.
    - From the **Requested Frame Rate** list, select one of the displayed values (multiples of the base frame rate, up to a maximum of 2,000).
4. Configure additional properties as required. For detailed information about each of the properties, see * *[*Local Vicon System properties*](https://vicon-help.atlassian.net/wiki/spaces/Nexus216/pages/11603939/Local+Vicon+System+node#LVSProps)* * in the *Vicon Nexus Reference Guide*.   
When you have finished specifying the properties, at the top of the **System** tab, click the **Save** button to save your system configuration settings to a *.system* file in the Systems configurations folder (see [Manage configurations in Vicon Nexus](https://vicon-help.atlassian.net/wiki/spaces/Nexus216/pages/11609390)).

> ✅ **Tip**   
> ✅ The node for the device designated as the Vicon system synchronization source is displayed in bold in the **System Resources** tree. For more information, see [Change the synchronization source](https://vicon-help.atlassian.net/wiki/spaces/Nexus216/pages/11607134/Configure+Vicon+hardware+in+Nexus#SynchSource).