Cisco 3650 24PS-E maximum available po+ power supply

[eb_3402]

Hi all,

We are using WS-C3650-24PS-E to both supply and connect our external devices. According to the datasheet, it is provided that such device can support up to 30W for each po+ port. What is the maximum  amount of power which can be provided with only single power supply? In addition to that, are we allowed to use two separate power suppliers ? If yes, can we consider the available power as twice of single one. I will be content , if you can specify power values for each case. What are configuration commands to activate mentioned power modes?

Thanks in advance,

[Daniele Giordano]

Hi, what power supply is installed?

According to the data sheet:

Available AC power supply

WS-C3650-24PS

24 PoE+

default power supply 640 WAC

available PoE 390 W

Support secondary power supply? YES

Available PoE with DC Power Supply

Model	Number of DC Power Supplies	Total Available PoE Budget
24-port or 48-port PoE Switch (non-multigigabit)	1	390 W
	2	780 W

So, if you install a second power supply you will increase the PoE budget:

Minimum Power Supply Requirements for Full PoE and PoE+

	24-Port PoE Switch	48-Port PoE Switch
PoE on All Ports (15.4 W per port)	One PWR-C2-640 WAC	One PWR-C2-1025WAC or Two PWR-C2-640 WAC
PoE+ on All Ports (30 W per port)	One PWR-C2-1025WAC or Two PWR-C2-640 WAC	Two PWR-C2-1025 WAC

 To provide 30W per port you need for instance 2 power supply PWR-C2-640 WAC.

 Some cisco switch support upoe but it seems not supported by 3560-24PS.

Cisco UPOE is a breakthrough technology, offering the following services and benefits:

●   60W per port to enable a variety of end devices such as Samsung VDI client, BT IP turret systems in trading floors, Cisco Catalyst compact switches in retail and hospitality environments, personal Cisco TelePresence^® systems, and physical access control devices.

Table 6.          Power Supply Requirements for Cisco UPOE

	24-Port Multigigabit Cisco UPOE Switch	48-Port Multigigabit Cisco UPOE Switch
Cisco UPOE (60W per port) on all (24-port switch) or max. 29 ports (48-port switch)	One 1100W and one 715W power supplies or two 1100W power supplies	Two 1100W power supplies

Regards.