The newly appointed Certkiller trainee technician wants to know which pins are used to supply power on a standard category 5 cable when connecting an IP Phone to an In-Line Power 10/100-line card in a Catalyst 6000 switch. What will your reply be?
A.
1,2,3,6
B.
4,5,6,7
C.
0,1,2,3,4,5,6
D.
4,5,7,8
E.
1,2,3,4
F.
1-10, 15-20
Explanation:
CISCO PRESTANDARD PoE IMPLEMENTATION
Two entities are directly connected in a PoE implementation: the power sourcing equipment (PSE), which is the line card in the switch, and the powered device, which receives power from the PSE. Examples of powered devices include IP phones, wireless access points, IP cameras, or any other PoE-powered device. The PSE requires a power supply capable of generating the -48V of power required. Power is provided over the same twisted pairs used by data (pins 1, 2, 3, and 6). This is also referred to as a PSE end span. Another alternative (not covered in this paper) is referred toas a PSE midspan. The PSE is a patch panel-type device placed between the switch and a powered device. Power is transmitted from the PSE midspan to the powered device using the unused Ethernet pins: 4, 5, 7, and 8.
http://www.cisco.com/en/US/partner/products/hw/switches/ps708/products_white_paper0900aecd80233a77.sht m