Panasonic KX-TDA100 Installation Manual page 121

2.5.7 SLC16 Card (KX-TDA0174), MSLC16 Card (KX-TDA0175), and CSLC16 Card (KX-TDA0177)
LED Indications
Indication
CARD STATUS
Colour Description
Green/Red Card status indication
•
OFF: Power Off
•
Green ON: Normal (all ports are idle)
•
Green Flashing (60 times per minute): Normal (a port is in use)
•
Red ON: Fault (includes reset)
•
Red Flashing (60 times per minute): Out of Service
Installation Manual 121