Step 2: How are they used?

Cables interconnect electronic devices, carrying signals from a source to a destination. They are an important, but often overlooked, component in a display system. Poorly performing cable can adversely affect an entire system, which is why they are often called the weakest link in any chain of electronic devices.
To minimize signal loss for the best possible performance, it is important to consider applicability, quality, and user-friendly characteristics when choosing the appropriate cable. Most high resolution video signals require at least five conductors, more if audio or other signals need to be routed as well. High resolution video signals are more sensitive to signal losses and require higher performance cables than NTSC signals. For long cable runs, a low loss cable is more appropriate.
Installer-friendly features, such as flexibility and durability, translate into reduced installation time and effort. Superior flexibility makes a cable easy to roll and unroll as well as maneuver through tight spots. Durability makes a cable less vulnerable to stress from frequent and fast-paced jobs, such as rental and staging applications.
When choosing a cable, there may be specific fire code requirements to consider. Plenum-rated cable has a fire code rating for applications where National Electric Code (NEC) Class 2 Plenum (CL2P) rated cable must be installed. (For further information on NEC classifications, see the Extron Products Cable Guide). Plenum cable can be run through open air spaces, so the need for conduit is eliminated and installation costs are reduced. However, local fire codes ultimately dictate what requirements must be met.