4
Acrylic cover
Speaker
LCD display
Keypad
0~9: Number keys
F1: Menu/Exit key
F2: Delete key
F3: ABC/abc/123 exchange button
*
*
*
*
: Volume & select up key
#
#
#
#
: Volume & select down key
Microphone
Bottom cover
System Diagram (Back View)
Intelligent Security & Fire Ltd