Home » HP » HP2-Z12 » Which additional step might apply to HP 1810G-8 switches only?
Sometimes you need to support an HP V Series switch on which the power LED does not illuminate. Typically, you check power cords and the power outlet. Which additional step might apply to HP 1810G-8 switches only?
A. checking the switch’s PoE source
B. checking the switch’s redundant power supply
C. checking the switch’s external power supply
D. checking whether the model is AC or DC
Correct Answer: A
Explanation/Reference:
Module 9 — HP V Series Switch Hardware
Procedure for Power Failures on PoE-Powered HP V1810G8 Switches
HP V1810G-8 switches can be powered by PoE instead of by a traditional power source. When they are, you must use a different procedure to troubleshoot.
First, use a known good RJ-45 cable to connect the V1810G-8 port 1 (the port that receives PoE) to the PoE power source (which might be an injector or a PoE switch). If this does not solve the problem, check the PoE source and verify that it has enough power to supply to the V1810G switch (15W).
Finally, if the PoE source is a switch, have the switch administrator check the PoE priority of the port that connects to the V1810G-8. The priority must be high enough to ensure that the switch will deliver power to the V1810G-8.
Once you are certain that the PoE source is delivering the proper amount of power, check the V1810G-8 Power LED. If it is still not illuminated, the switch has failed. Replace it.
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