Chapter 1 Poe Configuration; Poe On The Switch - H3C S9500 Series Operation Manual

Operation Manual – PoE
H3C S9500 Series Routing Switches

Chapter 1 PoE Configuration

1.1 PoE Overview

1.1.1 PoE on the Switch

H3C S9500 Series Routing Switches (hereinafter referred to as S9500 series) support
power-over-Ethernet (PoE). Equipped with external power supply and PoE-capable
cards, S9500 series can provide 48 VDC power for remote powered devices (PDs,
such as IP phones, WLAN APs, and Network cameras) through twisted pairs.
The S9500 series support LEGACY Power Supply standard. While they can also
supply power to PDs noncompliant with the standard.
The power supply of the S9500 series is administered by the SRP card; each PoE card
on the switch can be viewed as a power sourcing equipment (PSE), which administers
the power supplying of all the ports on it independently.
The S9500 series can transmit data and supply power in the mean time through the
signal lines (1, 3, 2, and 6) of the category-3/5 twisted pairs. Using converters, they can
also supply power to the PDs that can be powered only through spare lines (4, 5, 7, and
8).
The S9500 series supply power through the Ethernet electrical ports on the
service cards. Each service card can supply power to up to 48 remote devices at
the maximum distance of 100 m (328 feet).
The maximum power that can be supplied by each Ethernet port to its PD is 16.8
W.
When supplying power to remote devices, the maximum total power that can be
provided by the S9500 series is 4500 W (220 V)/2250 W (110V). The switch
determines whether or not to supply power to the next remote PD it discovered
depending on the total power it currently supply.
Note:
When a remote PD is powered by an S9500 series switch, the PD needs not have
any external power supply.
If the remote PD has an external power supply, the S9500 series switch and the
external power supply will be redundant with each other for the PD.
1-1
Chapter 1 PoE Configuration