Poe Power Limitations - Honeywell MPA2 Installation Manual

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
MPA2 Access Control Unit Installation Guide, Document 800-25395 - B
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
Device Element
Panel Power Consumption
Door strike or magnetic lock
current
Reader A maximum current
Reader B maximum current
Buzzer or sounder current
Door position switch
Request to exit switch
Total current for this
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).
Installing the MPA2 Panels
Hardware Specifications
Current
250 mA
600 mA
100 mA
100 mA
20 mA
20 mA
30 mA
1120 mA
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