POE inquiry

Created: Jan 17, 2019 19:33:08Latest reply: Jan 18, 2019 10:09:35 104 1 0 1
  Rewarded Hi-coins: 0 (problem resolved)

which UTP pairs carries the POE signal on S5700 in both POE and POE+? and why to use POE legacy?

  • x
  • convention:

chenhui  Enthusiast Technician   Created Jan 18, 2019 10:09:35 Helpful(0) Helpful(0)

@Abulaynain hi, Huawei PSEs can work in Alternative A (power supply use line pair 1/2 and line pair 3/6) and Alternative B (power supply use Line pair 4/5 and line pair 7/8).
to enable POE legacy is in order to enable Huawei PoE switches to provide power to some nonstandard PDs, because these PD detection signature capacitance is larger than 0.15 uF.
  • x
  • convention:

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