66
Figure 23 Main Power Supply Wiring and Connections
7.6.2 Supervision (Class B) of Auxiliary Supplies
Aux 2 Resettable Auxiliary Power (supervised, regulated)
The AUX 2 resettable auxiliary power supply is supervised for shorts.
A short will:
• Disconnect the power until the “RESET” button is pressed.
• Generate a trouble signal
The circuit must be supervised for opens utilizing the End of Line Relay Model EOLR-1. This
supply is rated at 24VDC regulated/300mA max/1V voltage drop maximum.
Aux 1 Resettable Auxiliary Supply (supervised, regulated)
The AUX 1 resettable auxiliary power is used to power the remote annunciators and smart
relay modules.
This filtered circuit is supervised for shorts.
240VAC 50Hz
120VAC 60Hz
N
Ground
BATTERY
+
-
BATTERY
+
-
BLACK
RED
RED
BLUE
BLACK
MD-819 Power
Supply Board
FX-400 Main Board
Ribbon Cable
Power Connector
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