Honeywell NETAXS-123 manual Mechanical, Device Element Current

Installing the NetAXS-123 Panels

Hardware Specifications

Example:

Device Element	Current
Door strike or magnetic	250 mA
lock current
Reader A maximum	50 mA
current
Reader B maximum	50 mA
current
Buzzer or sounder current	20 mA
Door position switch	20 mA
Request to exit switch	30 mA
Total current for this	420 mA
example

If the total current consumption of your external devices exceeds the 450mA maximum current maximum, then use one of the following 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 NetAXS-123 panel below 450mA.

•The maximum power available in the 802.3af 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:

•Connecting the NetAXS-123 panel to the power injector or PoE switch with the shortest possible Ethernet cable length.

•Using a high-power 802.3at power injector or PoE switch with a voltage of 56VDC. This reduces line losses and thus increases available power at the NetAXS-123 panel.

Note: The NetAXS-123 panel will not benefit from the increased power capabilities of a high-power 802.3at power injector. Its use only reduces line losses over the Ethernet cable.

5.5Mechanical

•Standard Enclosure dimensions: Height = 14 inches (355.6 mm), Width = 12 inches (304.8 mm), and Depth = 5 inches (127 mm).

•Compact Enclosure dimensions: Height = 7.5 inches (190.5 mm), Width = 7.5 inches (190.5 mm), and Depth = 2.25 inches (57.15 mm).

NetAXS-123 Access Control Unit Installation Guide, Document 800-05779, Revision A 61