Additional Nexus reference PDFs:

Nexus legacy documentation:

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Requested Frame Rate (Hz)The rate (in Hertz) at which to synchronize the Vicon cameras. If using external video signal, select from displayed values (multiples of the base frame rate of the PAL, NTSC, or Film video standard specified in Standard) up to a maximum of 2,000. You can choose any number you want if you do not have any Genlock Standard set.
The configured Vicon system capture rate is displayed in square brackets beside the node. For example, if the Vicon system frame rate is set to 100 Hz, the node title is displayed as Local Vicon System [100Hz]. If the Requested Frame Rate cannot be met due to the camera frame rate, Vicon Nexus displays the nearest adjusted frame rate in square brackets. To meet the Requested Frame Rate, you can change the Sub Sample Ratio of the relevant camera(s).
Default: 100
Actual Frame Rate (Hz)The frame rate used by the Vicon system, which is constrained by the camera frame rate limits.
Preferred MasterA list from which you can choose the synchronization master. If you are using multiple devices such as Vicon Lock+ or MX Giganets, to connect and control your cameras, a synchronization master is automatically chosen by Vicon Nexus. If the automatically selected synchronization master is not the required choice, you can select the appropriate device from the Preferred Master list. (For more information, see Change the synchronization master in the Vicon Nexus User Guide).
Default: Automatic
Buffer Size (MB)The size (in MB) of the memory buffer on the host PC when Nexus is receiving data from Vicon hardware. Specify a value between 0-1024 MB. This buffer is used if data comes in faster than Nexus can process it; therefore, the larger the buffer, the longer it takes before capture fails. Increasing this value enables a greater Capture Before Start duration to be set. The optimum size of the Buffer Size parameter depends on the amount of memory on your PC. The proportion of the total memory buffer that is reserved for Vicon devices is determined by the Buffer Reserve (see below).
Tip: If you experience failure of a combined video and optical camera calibration, particularly if you are capturing a long wand wave, close and restart Nexus. Reduce the Buffer Size to 0 MB before calibrating. Do not increase the buffer size to its usual level until you have completed a successful calibration.
Default: 250
Buffer ReserveThe proportion of the total buffer size (see Buffer Size above) that is reserved for Vicon video devices. The default of 0.5 results in half of the total buffer size being reserved for Vicon video devices (Vicon Vue and Bonita Video cameras). The remaining buffer space is used by third-party video cameras. If you want to maximize the buffer space reserved for Vue or Bonita Video cameras, set this value to 1.0. If you are using only Basler cameras or third-party DV cameras, set this value to 0.
Default: 0.5
Reboot AllResets all of the Vicon hardware devices in the Vicon system. Use this button if a camera has failed to boot, or if you need to reset the whole system for other reasons.
Alternatively, use the Reboot Vicon Hardware command from the context menu.
Minimize LatencyMinimizes the level of latency, or lag time, the RealTime Engine introduces during data streaming when data rates approach or exceed system processing capacity.
If selected, the RealTime Engine introduces no lag time when processing data frames. This decreases data throughput, but increases the possibility of frames being dropped.
If cleared, the RealTime Engine introduces 20 frames of lag time when processing data frames. As this increases data throughput, it can produce better labeling results.
Default: Cleared

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Genlock and Timecode section