Installing the MPA2 Panels
Hardware Specifications
MPA2 Access Control Unit Installation Guide, Document 800-25395 - B
55
5.5 PoE Power Limitations
If you are using the MPA2 Standard Enclosure and powering the panel with
PoE (Power over Ethernet), you must comply with these specifications for
proper operation:
• A MPA2 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 1500mA @ 12VDC is available for all
external devices combined.
Notes:
• Two readers per door can still be supported as long as the total
current is within the external load capacity stated above.
• You can either find the devices’ power consumption amounts
by referring to the products’ documentation or by using a
current meter.
Example
:
If the total current consumption of your external devices exceeds the
1650 mA maximum current, then use one of the following system
configurations:
• Power the panel with an external 13.8VDC power supply
(MPA2PSU).
Device Element
Current
Panel Power Consumption
250 mA
Door strike or magnetic lock
current
600 mA
Reader A maximum current
100 mA
Reader B maximum current
100 mA
Buzzer or sounder current
20 mA
Door position switch
20 mA
Request to exit switch
30 mA
Total current for this
example
1120 mA
