Honeywell FIre-LITe ALArms MS-9600LS Manual page 164

Operating Instructions
4.22.3 Power
Pressing 3 while viewing Read Status Screen #1 will display the following screens:
A real-time display of control panel voltages can be used to determine if system problems exist.
Note that Zones Screen #3 will only be displayed if the NACKEY NAC option card is installed, in
JP8 of the main circuit board, for Class B operation.
The following table lists the circuit being measured, possible conditions and their respective volt-
age ranges:
164
BATTERY
24 V RST
Zones Screen #1
POWER
CHARGER
NAC 1
NAC 2
Zones Screen #2
POWER
NAC 3
NAC 4
Zones Screen #3
Circuit Condition
Normal Battery (nominal)
Battery Low Battery
No Battery
24V Resettable Normal
24V Nonresettable Normal
Charger Normal
Normal
NACs Open Circuit
Short Circuit
POWER
27.21V
25.31V
28.36V
-2.39V
-2.39V
-2.39V
-2.39V
Voltage Range
27.05 to 28.15 VDC
20.0 to 20.8 VDC
0 to 18.36 VDC
21.25 to 27.50 VDC
21.25 to 27.50 VDC
27.05 to 28.15 VDC
-1.3 to -1.6 VDC
-2.3 to -2.5 VDC
0 to 1.0 VDC
MS-9600LS Series Manual — P/N 52646:B2 2/12/2010
Read Status