Power Over Ethernet (Poe) - Siemens SCALANCE XR324-4M PoE Compact Operating Instructions

Description

3.3 Power over Ethernet (PoE)

● For devices with a 100 to 240 VAC power supply:
– A 2-pin terminal block for the power supply
– A 2-pin terminal block for the signaling contact
● With devices with 24 V DC power supply:
– 4-pin terminal block for the power supply
– 2-pin terminal block for the signaling contact
– 4 adhesive feet for desktop mounting
3.3 Power over Ethernet (PoE)
Power over Ethernet (PoE)
With PoE, the power for networked devices is carried via Ethernet. Here, there are two
methods of supplying power:
● Alternative A
Here, the voltage is transferred on the data wires 1, 2, 3 and 6 of the Ethernet cable
Requirements for the Ethernet cable:
– For 10Base-T/100Base-TX, a 4-wire cable is adequate for data transmission and
– With 1000BASE-T, an 8-wire cable is necessary for data transmission.
● Alternative B
Power is transferred on the free wires 4, 5, 7 and 8 of the Ethernet cable.
Requirements for the Ethernet cable: For 10Base-T/100Base-TX/1000BASE-T, an 8-wire
cable is needed.
PoE-compliant devices can be divided into the following groups:
● PSE - power sourcing equipment
These inject power onto the Ethernet cable.
● PD - powered devices
These are supplied with power via Ethernet.
PoE ports of the SCALANCE XR324-4M PoE and XR324-4M PoE TS switches
As PSEs, these devices supply PoE-compliant devices with power over Ethernet. The power
required to supply the powered devices is generated internally on the switches, no extra
power supply unit is necessary.
16
power supply.
Compact Operating Instructions, 05/2016, A5E02661178-10
SCALANCE XR-300M PoE