11-21-2018 12:20 AM - edited 03-08-2019 04:39 PM
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,
11-21-2018 12:45 AM
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 |
One PWR-C2-640 WAC |
One PWR-C2-1025WAC or Two PWR-C2-640 WAC |
PoE+ on All Ports |
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 |
One 1100W and one 715W power supplies or two 1100W power supplies |
Two 1100W power supplies |
Regards.
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