26 MPA2C3 Installation Guide
Power Supply
The system can be powered by PSU or PoE+. For the standard metal enclosure,
either the PSU with a backup battery or the PoE+ can be supported. When the PSU
fails to power, the backup battery will be activated to power the system automati-
cally.
Note: Do not connect the backup battery when using PoE+.
• An MPA2C3 panel powered by PoE+ is 802.3at compliant, providing a maximum
of PSE 30W of input power and maximum of 25.5 W of output power to the panel.
This input power is split between on-board power consumption and external
load consumption. A maximum current capacity of 1600mA @ 12±2 VDC is
available for all external device combined.
• The PSU is a 10-19 VDC 50 W power supply with an international input of
• 100 VAC to 240 VAC (not be verified). The system also charges and monitors the
condition of the battery.
• A maximum current capacity of 3A @ 12VDC nominal is available for all external
devices combined.
• The backup battery is 12 VDC, 7 Ah min. and 12 Ah max. sealed lead acid battery.
The battery provides standby backup power, depending upon system
configuration and activity. When AC is lost, the power supply automatically
switches to the backup battery for continuous 12 VDC power. Replace the
battery every 2 to 2.5 years, or more often if the system has a high rate of backup
use.
Note: Battery cannot be used in combination with PoE+ operations.
Note: MPA2C3 units should be powered by a 100/240 VAC (not be verified) fused line.
Ensure to disconnect the battery and AC power before servicing.
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