MicroScanner Series
Cable Verifiers
Users Manual
44
Passive Sources
For passive sources, the MicroScanner PoE tester shows the
voltage it measures on the powered pairs, as shown in
Figure 32.
Figure 32. Passive Power (MicroScanner PoE)
EGK34.EPS
The voltage detected on the pairs shown.
(passive) shows when the tester
detects a passive power source. A passive power
source puts a constant voltage on the cable, with no
negotiation.
W
Caution
Before you connect a device to a port that
supplies passive power, make sure the power
will not damage the device. The power can
damage devices not designed to operate with
passive power.
802.3
Class
W
V
Ω
HIGH
B
A
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