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2. Power over Ethernet - Wikipedia

   en.wikipedia.org/wiki/Power_over_Ethernet

   The original PoE standard, IEEE 802.3af-2003, [1] now known as Type 1, provides up to 15.4 W of DC power (minimum 44 V DC and 350 mA) [2] [3] on each port. [4] Only 12.95 W is guaranteed to be available at the powered device as some power dissipates in the cable.

3. List of 3Com products - Wikipedia

   en.wikipedia.org/wiki/List_of_3Com_products

   Switch 4200G - Gigabit. 12, 24 or 48 Gb ports including 4 Dual Personality Ports (2 × Gb or SFPs). 12-Port module has one 10-Gigabit expansion slot; other units have two 10-Gigabit expansion slots. One PoE model. Units can directly take a 10GE XENPAK, or can receive a 1-Port 10GE XFP module. Supports Layer 2 switching and Layer 3 static routing.

4. Network switch - Wikipedia

   en.wikipedia.org/wiki/Network_switch

   Segmentation involves the use of a switch to split a larger collision domain into smaller ones in order to reduce collision probability and to improve overall network throughput. In the extreme case (i.e. micro-segmentation), each device is directly connected to a switch port dedicated to the device. In contrast to an Ethernet hub, there is a ...

5. List of ProCurve products - Wikipedia

   en.wikipedia.org/wiki/List_of_ProCurve_products

   20 or 44 10/100 port switches with two models supportingPoE functionality, and 4 x Dual Personality Ports (2 x Gb or SFPs). [4] [5] 20 or 44 Gb port switch with PoE functionality, and 4 x Dual Personality Ports (2 x Gb or SFPs). Also capable of supporting 10GE ports. CPU Motorola PowerPC MPC8245 @266 MHz MIPS @264 MHz Freescale PowerPC 8540 ...

6. Cisco Catalyst - Wikipedia

   en.wikipedia.org/wiki/Cisco_Catalyst

   The inside of a Cisco 1900-series switch. Catalyst is the brand for a variety of network switches, wireless controllers, and wireless access points sold by Cisco Systems.While commonly associated with Ethernet switches, a number of different types of network interfaces have been available throughout the history of the brand.

7. 2.5GBASE-T and 5GBASE-T - Wikipedia

   en.wikipedia.org/wiki/2.5GBASE-T_and_5GBASE-T

   By reducing the original signal rate to 1 ⁄ 4 or 1 ⁄ 2, the link speed drops to 2.5 or 5 Gbit/s, respectively. [5] The spectral bandwidth of the signal is reduced accordingly, lowering the requirements on the cabling, so that 2.5GBASE-T and 5GBASE-T can be deployed at a cable length of up to 100 m on Cat 5e or better cables.