... : smoke and heat sensors, manual call points, contact input (monitor) modules, relay output modules, dual input/output modules, and ... module. The basic system can be expanded by adding OZF-LCD remote annunciator, OZH48ZL signalling line circuit expander, and optional ... levels per device7) Large 15-line x 40-character LCD display (600 char.)8) Built-in help information screens9) Powerful & versatile ...