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Knowledge Base

Documentation, guides, and resources for Noldus products.

CatWalk XT 11 - Assembly - Assembly Instructions

Last updated: Jul 29, 2026

CatWalk System - Overview Pictures

Front View

Back View

Cable Connections - Front

Important: Do not connect the TTL control inputs of the CatWalk Control Unit to the PC!

Cable Connections - Back

Note: The CatWalk computer provided by Noldus has a USB port of type C for connecting the CatWalk system.

Dimensions

Use the figure below to plan the room available in your laboratory (computer and table are not shown here). Without the goal box, the length of the system is 130 cm (51 3/16").

General Information

Components of the CatWalk System

  • Mechanics – CatWalk stand, walkway, spring-operated corridor, camera profile, support for the illuminated ceiling, illuminated ceiling.
  • Hardware – Ethernet card, digital camera, network cable, power supply. See also Parts List.

Location

The room in which the CatWalk system is set up should be darkened (± 1 Lux) to ensure the optimal signal-to-noise ratio. Alternatively, you can also operate CatWalk under red light conditions. Make sure the red light does not shine directly into the camera.

How Many People?

Two persons are needed for some crucial steps.

Tools You Need

  • CatWalk assembly tools: 4 hexagonal (Allen) keys of 3, 4, 5 and 6 mm, a small Philips head screwdriver and a spirit level, which are included with the CatWalk system.
  • A small rubber mallet (hammer), not included.

Important: First read the CatWalk System - Overview Pictures section for an overview of the complete CatWalk system with labels for the major parts. See also Parts List.

Be careful when handling CatWalk parts. Noldus Information Technology cannot be held responsible for any injuries acquired during installation.

Please read each step carefully before carrying it out!

Source: CatWalk XT 11.0 Assembly Instructions, Noldus Information Technology

Request a trial license

Try the software in your own lab before you buy. We offer trial periods for qualifying researchers.

Noldus is here to assist you throughout the whole process.

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