Operator's Manual

CONTROLS AND DISPLAY
14
Front Display - This is a dot-matrix graphical LCD (Liquid Crystal Dis-
play). The display backlight can be programmed to turn on when any key
is pressed or when the Backlight option switch is pressed (see page 20).
DTMF Keypad - The full keypad, 17-key models include the keys
required to dial telephone, unit ID, and group ID numbers and also to
enter numbers during for keypad programming.
F1 - F4 - These keys are available with both full and limited keypad
models, and they can be system operator programmed to control a
specific function. The key functions can be different for each operating
mode (see page 11). Other programmable option switches are located on
the top and side panels (see preceding information).