User guide
1640 Icon LCD Keypad 3
2.2 Keypad Indicator Lights
The state of each light on the 1640 keypad represents a 
specific condition in your system as shown in Table 2.
Table 2: Indicator Lights
Events in 
Memory
Refer to Alarm Memory Display on 
page 8.
System 
Trouble
Refer to Trouble List on page 27.
N/A Reserved for future use.
LED Name Status Description
AC Light ON
OFF 
Power on
Power off
Status Light Green ON All zones closed
  Green OFF Zone(s) open or in 
tamper
Green flash Exit delay
Name Key Description
1640-EU03.fm Page 3 Thursday, October 5, 2006 3:50 PM










