Budgeting PoE Power
The PoE switch component in the Avigilon ACC ES Rugged 8-Port Appliance can output a total of 64 W of
power to the connected devices. Each PoE port is capable of outputting 16 W to standard PoE devices, and
30 W to PoE+ devices. This typically means that the device can support up to 4 standard PoE devices or up
to 2 PoE+ devices.
Advanced users can manually adjust the PoE power budget for each port to consistently accommodate the
cameras needed.
If you choose to manually adjust the PoE budget at each port, be aware that you must also account for
potential power loss in the cable. Unless the amount of power loss in the cable is known, use the following
estimates:
l
If the device uses less than or equal to (<=) 16 W — expect 2.5 W of power loss.
l
If the device uses more than (>) 16 W — expect 4.5 W of power loss.
To calculate the recommended power budget for each port, use the following equation:
Power budget =
<Camera power consumption>
+
<Expected cable power loss>
Example
: Connect the following 4 cameras to an ACC ES Rugged 8-Port Appliance:
2 x HD dome cameras
( 9 W + 2.5 W) x 2 = 23 W
1 x HD PTZ camera
25.5 W + 4.5 W = 30 W
1 x HD micro dome
4 W + 2.5 W = 6.5 W
Total
= 59.5 W
The total power consumption of the 4 cameras is within the PoE switch component limits.
Note:
If you miscalculate the required power for a PoE port, the entire PoE switch may be shut
down if total power output exceeds 64 W.
Budgeting PoE Power
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