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eb_3402
Beginner

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

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,

1 REPLY 1
Daniele Giordano
Rising star

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.