Honeywell Fire-Lite Alarms MS-9600 Manual page 126

Operating Instructions
126
4.22.3 Power
Pressing 3 while viewing Read Status Screen #1 will display the following screens:
BATTERY
24 V RST
CHARGER
NAC 1
NAC 2
NAC 3
NAC 4
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 voltage ranges:
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
Zones Screen #1
POWER
28.36V
-2.39V
-2.39V
Zones Screen #2
POWER
-2.39V
-2.39V
Zones Screen #3
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
Read Status
MS-9600 PN 51335:E1 2/14/08