Power Reserve Budget

Power supply equipment (PSEs) can be categorized as either Type 1, Type 2, Type 3, or Type 4 PSEs . Type 3 PSEs support powered devices (PDs) up to class 6. Type 4 PSEs support PDs up to class 8.

ExtremeSwitching 5320-24P Series Switches

ExtremeSwitching 5320-24P series switches have the following power reserve budgets:

Table 1. ExtremeSwitching 5320-24P-8XE PoE Power Budget
Single Internal Fixed PSU
370W

ExtremeSwitching 5320-48P Series Switches

ExtremeSwitching 5320-48P series switches have the following power reserve budgets:

Table 2. ExtremeSwitching 5320-48P-8XE PoE Power Budget
Single Internal Fixed PSU
740W

ExtremeSwitching 5420F Series Switches

ExtremeSwitching 5420F series switches have the following power reserve budgets:

Table 3. ExtremeSwitching 5420F-24P-4XE PoE Power Budget
Single Internal Fixed PSU Recommended Secondary PSU
380W 720W
Table 4. ExtremeSwitching 5420F-48P-4XE PoE Power Budget
Single Internal Fixed PSU Recommended Secondary PSU
740W 1480W
Table 5. ExtremeSwitching 5420F-48P-4XL PoE Power Budget
Single Internal Fixed PSU Recommended Secondary PSU
740W 1480W
Table 6. ExtremeSwitching 5420F-8W-16P-4XE PoE Power Budget
Single Internal Fixed PSU Recommended Secondary PSU
480W 960W
Table 7. ExtremeSwitching 5420F-16W-32P-4XE PoE Power Budget
Single Internal Fixed PSU Recommended Secondary PSU
872W*/960W** 1437W*/1874W**
Table 8. ExtremeSwitching 5420F-16MW-32P-4XE PoE Power Budget
Single Internal Fixed PSU Recommended Secondary PSU
860W*/960W** 1425W*/1862W**
Note

Note

* @ 100-120 VAC
Note

Note

** @ 200-240VAC

ExtremeSwitching 5420M Series Switches

ExtremeSwitching 5420M series switches have the following power reserve budgets:

Table 9. ExtremeSwitching 5420M-24W-4YE PoE Power Budget
1 x 920W 2 x 920W
720W 1440W
Table 10. ExtremeSwitching 5420M-48W-4YE PoE Power Budget
1 x 920W 2 x 920W 1 x 2000W @ 100-120VAC 1 x 2000W @ 200-240VAC 1 x 920W & 1 x 2000W @100-120VAC 1 x 920W & 1 x 2000W @ 200-240VAC 2 x 2000W @ 100-120VAC 2 x 2000W @ 200-240VAC
804W 1558W 884W 1440W 1212W 2076W 1704W 2880W
Table 11. ExtremeSwitching 5420M-16MW-32P-4YE PoE Power Budget
1 x 920W 2 x 920W 1 x 2000W @ 100-120VAC 1 x 2000W @ 200-240VAC 1 x 920W & 1 x 2000W @100-120VAC 1 x 920W & 1 x 2000W @ 200-240VAC 2 x 2000W @ 100-120VAC 2 x 2000W @ 200-240VAC
787W 1541W 867W 1440W 1195W 2059W 1687W 2400W

ExtremeSwitching 5520 Series Switches

ExtremeSwitching 5520 series switches have the following power reserve budgets:

Table 12. ExtremeSwitching 5520-24W—System Power: 400W
PSU1 PSU2 30W Ports 60W Ports 90W Ports PoE Max
2,000W high line 2,000W high line 24 24 24 2,160W
20,00W low line 2,000W low line 24 24 20 1,800W
1,100W 1,100W 24 24 20 1,800W
715W 715W 24 17 11 1,020W
2,000W high line 0W 24 24 17 1,530W
2,000W low line 0W 23 11 7 690W
1,100W 0W 23 11 7 690W
715W 0W 10 5 3 300W
Table 13. ExtremeSwitching 5520-48W—System Power: 400W
PSU1 PSU2 30W Ports 60W Ports 90W Ports PoE Max
2,000W high line 2,000W high line 48 48 40 3,600W
2,000W low line 2,000W low line 48 30 20 1,800W
1,100W 1,100W 48 30 20 1,800W
715W 715W 34 17 11 1,020W
2,000W high line 0W 48 26 17 1,560W
2,000W low line 0W 23 11 7 690W
1,100W 0W 23 11 7 690W
715W 0W 10 5 3 300W
Table 14. ExtremeSwitching 5520-12MW-36W—System Power: 400W
PSU1 PSU2 30W Ports 60W Ports 90W Ports PoE Max
2,000W high line 2,000W high line 48 48 40 3,600W
2,000W low line 2,000W low line 48 30 20 1,800W
1,100W 1,100W 48 30 20 1,800W
715W 715W 34 17 11 1,020W
2,000W high line 0W 48 26 17 1,560W
2,000W low line 0W 23 11 7 690W
1,100W 0W 23 11 7 690W
715W 0W 10 5 3 300W

ExtremeSwitching 5720 Series Switches

ExtremeSwitching series switches have the following power reserve budgets:

Table 15. ExtremeSwitching 5720 PoE Power Budget
Switch Model 1 x 715W 2 x 715W 1 x 1100W 2 x 1100W 1 x 2000W @110-132VAC 2 x 2000W @110-132VAC 1 x 2000W @220-264VAC 2 x 2000W @220-264VAC
5720-24MW 450W 1093W 835W 1825W 835W 1825W 1735W 2160W
5720-24MXW 450W 1093W 835W 1825W 835W 1825W 1735W 2160W
5720-48MW 450W 1093W 835W 1825W 835W 1825W 1735W 3535W
5720-48MXW 450W 1093W 835W 1825W 835W 1825W 1735W 3535W
Note

Note

It‘s recommended that primary and secondary PSUs be of the same type to support optimal PoE operation.

Guard Band

To reduce the chances of ports fluctuating between powered and non-powered states, newly inserted PDs are not powered when the actual delivered power for the switch is within a preset value below the configured inline power budget for that slot or switch.

This band is called the guard band and the value used is 20 W for all ExtremeSwitching series switches. However, actual aggregate power can be delivered up to the configured inline power budget for the slot or switch (for example, when delivered power from ports increases or when the configured inline power budget for the slot is reduced).

If total consumed power is within the guard band, new ports are not powered up.

9037560-00 Rev AA