Cable+Network Tester
Switch Test Results
35
Figure 7. PoE Test Pass Example
The hardware class section passes because:
The device identifies as a HW Class 6 capable of 51.0 W at PD.
The Product applies a load to the device to validate if the available power from the PSE at
the PD meets the standard of the negotiated class (in this example, a Class 6 device).
The device delivers 55.0 V under the load which is
≥
42.5 V, the minimum amount required
for a device to meet the Class 6 standard.
The software class section passes because:
The device identifies as a SW Negotiated Class 8 capable of 71.3 W at PD.
The Product applies a load to the device to validate the available power from the PSE at the
PD meets the standard of the negotiated class (in this example, a Class 8 device).
The device delivers 54.2 V under the load which is
≥
41.1 V, the minimum amount required
for a device to meet the Class 8 standard.
PoE Test Fail Reasons
A PoE device fails a test if:
The device identifies as capable of a negotiated hardware class greater than the power the
device can deliver under the load required to meet the standard for the stated class.
The device identifies as capable of a negotiated software class greater than the power the
device can deliver under the load required to meet the standard for the stated class.
The switch under test cannot deliver power to the device because the maximum power
which the switch can deliver is already in use.
HW Class: 6
51.0 W at PD
55.0 V Under Load, 42.5 V Minimum
SW Negotiated Class: 8
71.3 W at PD
54.2 V Under Load, 41.1 V Minimum
Summary of Contents for LinkIQ
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