What Is A PoE Switch?
A switch is a device that allows devices on a network to communicate. A PoE switch has the Power over Ethernet functionality built into it. This means you can power devices using network cables.
A PoE switch provides power that can be used to run other devices via the Ethernet cabling. If your network has distributed switches, it’s also possible to get PoE pass-through switches. These are themselves powered by PoE from a central source but can also pass power on to endpoint devices such as cameras or phones.
What Devices Use A PoE Switch?
There are many devices that can be powered by PoE. However, the amount of power needed can differ.
Low Watt PoE devices: VoIP and Video Phones, IP cameras, Wireless Access Points, Audio Devices, Remote Computer Terminals, and Thin Clients
High Watt PoE devices: TVs, Computer Monitors, Laptops
Specifications
a) 8 switch ports with gigabit auto-detect operation, with LED status display
b) The GPOES-8-7-48V120W network switch is a 48V 120Wpower supply included
c) 7 always on PoE outputs with either Mode A or Mode B or None via switch each port
Mode A power and data on pins 1/2(-) and 3/6(+); Mode B power or pins 4/5(+) and 7/8(-) with data on pins 1/2 and 3/6
d) LEDs indicate 18/24 volt operation or 48/56 volt operation; 2.1mm power connector, center positive; Maximum input current per mode – 2.5 amps
e) Mode B PoE power input from the uplink port – 1.25 amps max - pins 45 / 78 can power the switch and also the PoE output ports
g) Uplink port 10/100/1000Mbit/s; The uplink port has no PoE voltage out and accepts Mode B PoE in
g) Power 802.3af devices (always on, no auto-negotiation), 48 volts in either A or B modes