The search string you used ( viewerframe mode intitle axis 2400... ) resembles a "Google dork"—a specialized search query used to find specific device interfaces or documents directly via search engines. However, this often leads to exposed camera feeds rather than helpful manuals.
The term "intitle axis" isn't standard in the context of video servers or streaming. However, "AXIS" could refer to Axis Communications, a company known for its network cameras and video encoders. If you're integrating Axis cameras into a video server setup, you might be looking at how to configure or view feeds from these cameras. The search string you used ( viewerframe mode