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Chapter 3 Performing Network Tests

Performing PoE Tests

38 LanScaperPRO Network Tester User’s Guide

If no other voltages are present, the LanScaperPRO

tests for PoE. Four different PoE modes/connections

are tested for:

– Cisco legacy In Line Power (ILP), connected in

the End Span (1-2, 3-6 pairs) configuration

– Cisco legacy In Line Power (ILP), connected in

the Mid Span (4-5, 7-8 pairs) configuration

– IEEE 802.3af (IEEE) modes, connected in the

End Span (1-2, 3-6 pairs) configuration

– IEEE 802.3af (IEEE) modes, connected in the

Mid Span (4-5, 7-8 pairs) configuration

If one of these PoE sources is detected, the PoE

mode, the pairs carrying the power, and the polarity

of the voltage are determined and displayed. As part

of the process, the voltage and current are verified to

meet the IEEE specifications.

Once the test is complete and the results displayed,

the user is offered the option to press the SEL key to

display the Network Test Menu and run any network

tests without retesting for voltages. (Once valid PoE

is determined, it is safe to run the LanScaperPRO

network tests on the system.)

If you do not wish to run a network test at this point,

you can change the jack connection and press the

TEST key to run another PoE test or press the QUIT

key to exit the PoE test mode.

Note that some other non-standard legacy PoE

protocols may not be detected by the LanScap-

erPRO, and can cause erroneous test results.

LanScaperPRO_User_Guide.book Page 38 Friday, January 25, 2008 1:14 PM

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JDSU NT850 Guia do Utilizador Página 54