Panasonic KX-TGM422AZ Operating Instructions Manual page 6

Introduction
Expanding your phone system
Handset (optional): KX-TGMA44AZ
You can expand your phone system by
registering optional handsets (6 max.) to a
single base unit.
R Optional handsets may be a different
colour from that of the supplied handsets.
*1 Maximum receiver volume is 40 dB (when the booster is on).
Graphical symbols for use on equipment and their
descriptions
Symbol Explanation
Alternating current (A.C.)
Direct current (D.C.)
Protective earth
Protective bonding earth
Functional earth
For indoor use only
6
*1
Symbol Explanation
Class P equipment
(equipment in which
protection against electric
shock relies on Double
Insulation or Reinforced
Insulation)
"ON" (power)
"OFF" (power)
Stand-by (power)
"ON"/"OFF" (power;
push-push)
Caution, risk of electric
shock