TP-Link T1500G-10MPS T1500G-10MPSUN V1 User Guide - Page 133

TP-Link T1500G-10MPS Manual

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Chapter 10 PoE PoE (Power over Ethernet) technology describes a system to transmit electrical power along with data to remote devices over standard twisted-pair cable in an Ethernet network. It is especially useful for supplying power to IP telephones, wireless LAN access points, cameras and so on.  Composition A PoE system usually consists of PSE and PD. PSE: Power sourcing equipment (PSE) is a device such as a switch that provides power on the Ethernet cable to the linked device. PD: A powered device (PD) is a device accepting power from the PSE and thus consumes energy. PDs falls into two types, standard PDs and nonstandard PDs. Standard PDs refer to the powered devices that comply with IEEE 802.3af and IEEE 802.3at. Examples include wireless LAN access points, IP Phones, IP cameras, network hubs, embedded computers etc.  Advantage  Cheap cabling: The remote device such as cameras can be powered by PSE in no need of prolonging its power cord additionally and Ethernet cable is much cheaper than AC wire or power cord.  Easy to connect: PoE uses only one Ethernet cable with no need of external power supply.  Reliable: A powered device can be either powered by PSE using Ethernet cable or powered through the provided power adapter. It is very convenient to provide a backup power supply for the PDs.  Flexibility: In compliance with IEEE 802.3af and IEEE 802.3at, global organizations can deploy PoE everywhere without concern for any local variance in AC power standards, outlets, plugs, or reliability.  Wide use: It can be applied to wireless LAN access points, IP Phones, IP cameras, network hubs, embedded computers etc. T1500G-10MPS is a Power Sourcing Equipment (PSE). All the Auto-Negotiation RJ45 ports on the switch support Power over Ethernet (PoE) function, which can automatically detect and supply power for those powered devices (PDs) complying with IEEE 802.3af and IEEE 802.3at. PoE function can be configured in the two sections, PoE Config and PoE Time-Range. 10.1 PoE Config All the RJ45 ports on the switch can be configured to supply power for the powered devices that comply with IEEE 802.3af and IEEE 802.3at. As the power every port or the system can provide is limited, some attributes should be set to make full use of the power and guarantee the adequate power to the linked PDs. When the power exceeds the maximum power limit or the power is inadequate to power the device, the switch may disconnect the power supply to the PD linked to the port with lower priority. When detecting a PD is unplugged, the switch will stop supplying the power to the PD. 124

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124
Chapter 10
PoE
PoE (Power over Ethernet) technology describes a system to transmit electrical power along
with data to remote devices over standard twisted-pair cable in an Ethernet network. It is
especially useful for supplying power to IP telephones, wireless LAN access points, cameras
and so on.
Composition
A PoE system usually consists of PSE and PD.
PSE:
Power sourcing equipment (PSE) is a device such as a switch that provides power on the
Ethernet cable to the linked device.
PD:
A powered device (PD) is a device accepting power from the PSE and thus consumes
energy. PDs falls into two types, standard PDs and nonstandard PDs. Standard PDs refer to the
powered devices that comply with IEEE 802.3af and IEEE 802.3at. Examples include wireless
LAN access points, IP Phones, IP cameras, network hubs, embedded computers etc.
Advantage
Cheap cabling: The remote device such as cameras can be powered by PSE in no
need of prolonging its power cord additionally and Ethernet cable is much cheaper
than AC wire or power cord.
Easy to connect: PoE uses only one Ethernet cable with no need of external power
supply.
Reliable: A powered device can be either powered by PSE using Ethernet cable or
powered through the provided power adapter. It is very convenient to provide a
backup power supply for the PDs.
Flexibility: In compliance with IEEE 802.3af and IEEE 802.3at, global organizations can
deploy PoE everywhere without concern for any local variance in AC power standards,
outlets, plugs, or reliability.
Wide use: It can be applied to wireless LAN access points, IP Phones, IP cameras,
network hubs, embedded computers etc.
T1500G-10MPS is a Power Sourcing Equipment (PSE). All the Auto-Negotiation RJ45 ports on
the switch support Power over Ethernet (PoE) function, which can automatically detect and
supply power for those powered devices (PDs) complying with IEEE 802.3af and IEEE 802.3at.
PoE function can be configured in the two sections,
PoE Config
and
PoE Time-Range
.
10.1
PoE Config
All the RJ45 ports on the switch can be configured to supply power for the powered devices
that comply with IEEE 802.3af and IEEE 802.3at. As the power every port or the system can
provide is limited, some attributes should be set to make full use of the power and guarantee
the adequate power to the linked PDs. When the power exceeds the maximum power limit or
the power is inadequate to power the device, the switch may disconnect the power supply to
the PD linked to the port with lower priority. When detecting a PD is unplugged, the switch will
stop supplying the power to the PD.