41
Example:
If the total current consumption of your external devices
exceeds the 700mA maximum current, then use one of the fol
-
lowing system configurations:
• Power the panel with an external 12VDC power supply.
• Power some or all of the external devices with an external
power supply to lower the total external current powered by
the MPA1C1 panel below 700mA.
Power consumptions
• The maximum power available in the PoE 802.3af Power Class
3 standard is 15.4W. This limit is generally at 48VDC, and it is
measured at the output of the power injector or PoE switch.
Line losses cause a decrease in the power available at the
panel when you use longer Ethernet cable lengths. You can
minimize these line losses by using either of the following
methods:
Device Element
Current
Door strike or magnetic lock current
500 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
770 mA
Summary of Contents for MPA1C1
Page 4: ...3 Introduction This document describes how to install the MPA1C1 access control unit ...
Page 8: ...7 MPA1C1 door with single reader and door strike MPA1C1 door with two readers and door strike ...
Page 17: ...16 Note The MPA1C1 Controller has been installed already in the MPA1ENCP enclosure ...
