Fluke MicroScanner MS-POE - Page 53

Detecting Power Over Ethernet
43
If the Display Shows 0.0 W
If a PoE source does not supply power to a port, the
MicroScanner PoE tester shows 0.0 W and PoE flashes on
the display. See Figure 31.
Note
If the display shows 0.0 W, and you quickly connect
the tester to another port, the display might
continue to show 0.0 W for a few seconds until the
tester shows results for the new port.
Figure 31. PoE Port that Shows 0.0 W
EGK39.EPS
 The PoE source is not supplying power to the port.
The source could be supplying most or all of its
available power to other ports. Or possibly, the port is
not configured to supply power. To find the reason
for the lack of power, ask a network engineer to
check the status of the source ports.
 PoE flashes when the port does not supply power.
 The source did not provide a class number for the
port. This is typical for ports that do not supply power,
although some sources do provide a class number for
unpowered ports.
802.3
Class
W
V
Ω
HIGH
C
A
B
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