Special Features:

Displays aternate vertical speed, resolution and traffic advisory; input/output format - arinc 429; bezel color - black; pushbutton mode switch toggles between full-time and pop-up traffic advisories; pushbutton range switch toggles between 6 and 12 mile ranges

Properties:

A grouping of two or more physically connected or related indicators, which may or may not have the same basic noun name. They must be separable and each item must be capable of functioning in accordance with its own item name.