rs. Clas- sical Data Communications people use the term Leased Line. GLOSSARY Protocol A set of rules used by devices in a network to exchange information is called a protocol. PSTN Public Switched Telephone Network Picture Quality A phrase of almost universal use as a benchmark is Broadcast Quality, a subjective term meaning "it looks and sounds like a TV set." Classical television engineers use a set of metrics including parameters for resolution, color fidelity, and contrast range among others. Focus, though, is mostly on the use of TV lines as an indicator of a component or system's ability to resolve detail in an image. To a broadcast engineer, the term resolution (see below) translates to TV lines. Resolution in print and film means "line pairs per millimeter." Outside the television world, reso- lution is used to mean pixel count. Another similar term found in monitor specifications is Dot Pitch. A properly designed and configured content transport network, connection, or facility will not impact picture quality SO long as it is operating within bandwidth and error rate performance specifica- tion parameters. Resolution Resolution is determined by the resolving power of the pickup and display devices and other system components in between. Spatial resolution is a measure of the ability of a compon- ent or system to resolve detail in an image. Temporal resolution is the image repetition rate in continuous motion capture and dis- play. Television displays use FPS-frames per second-and com- puter displays use Refresh Rate. Resolution-also With the promise of convergence on the imaging side (as opposed to converging disparate traffic types on a network access facility), one should be aware that the motion picture indus- try uses the term line pair per millimeter (LPPM) and the print/ graphics industry uses dots per inch (DPI). And it bears repeating again SO you won't needlessly traverse blind alleys: A properly designed and configured content transport facility, connection, or net- work will not impact image 