Check the complete video mode, not just resolution: refresh rate, color depth, chroma sampling and HDR affect bandwidth. Every source, processor, adapter and display must support that mode. Test a direct source-to-display connection first, confirm cable direction and any power requirement, then add intermediate devices one at a time. Check EDID and HDCP settings if the problem appears during input switching. Select the cable for the exact format and installed length.

Measure the actual route through trays, walls and rack entries, including service loops. Choose a supported HDMI or DisplayPort optical cable length and confirm connector clearance, signal direction and any external power requirement. Keep connection points accessible. Before closing the route, test the installed cable with the intended equipment, including power cycling and input changes.

Label both ends with source, destination and cable ID. Use cable managers and loose hook-and-loop supports, keep bends within the model's stated radius, and avoid loading connectors with cable weight. Leave room for cooling and future replacement. Plan separation from power wiring to suit the installation requirements. A multi-screen workstation or video wall needs the appropriate outputs or processor; one point-to-point cable does not distribute a picture to every screen.

The optical transmission section is not susceptible to electromagnetic pickup, but the complete connection still includes powered electronics and may include copper conductors. Do not assume every AOC provides electrical isolation. Check the exact cable construction, equipment grounding, power arrangement and installation requirements. If isolation is required, confirm it explicitly for the selected model. Test with nearby equipment operating under normal load.

Match the cable to the show format and route length, then test the complete signal chain before doors open. Use suitable cable ramps in traffic areas and protect connectors during deployment and storage. Follow the model's pulling and bending limits, keep a tested spare available, and inspect the cable after each event. Armor does not by itself establish waterproofing or unlimited resistance to crushing.