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.
4120 Series Switches
Switch Model
With Internal Fixed PSU
With Internal Fixed PSU + 920W PSU
With Internal Fixed PSU + 1200W PSU
With Internal Fixed PSU + 2000W PSU
4120-24MW-4Y (100-120VAC)
680W
1440W
1380W
Not Supported
4120-48MW-4Y (100-120VAC)
640W
Not Supported
1340W
1230W
4120-24MW-4Y (200-240VAC)
680W
1440W
1540W
Not Supported
4120-48MW-4Y (200-240VAC)
980W
Not Supported
1780W
2180W
4220 Series Switches
Switch Model
PoE Budget
4220-12P-4X
124W
4220-24P-4X
195W
4220-48P-4X
370W
4220-4MW-8P-4X
240W
4220-4MW-20P-4X
370W
4220-8MW-40P-4X
740W
5320-16P Series Switches
Switch Model
PoE Budget
5320-16P-2MXT-2X
180W
5320-16P-4XE
185W
5320-16P-4XE-DC
185W
5320-24P Series Switches
5320-24P series
switches have the following power reserve budgets:
Table 1. 5320-24P-8XE PoE Power Budget
Single Internal Fixed PSU
370W
5320-48P Series Switches
5320-48P series
switches have the following power reserve budgets:
Table 2. 5320-48P-8XE PoE Power Budget
Single Internal Fixed PSU
740W
5420F Series Switches
5420F series
switches have the following power reserve budgets:
Table 3. 5420F-24P-4XE PoE Power Budget
Single Internal Fixed PSU
Recommended Secondary PSU
380W
720W
Table 4. 5420F-48P-4XE PoE Power Budget
Single Internal Fixed PSU
Recommended Secondary PSU
740W
1480W
Table 5. 5420F-48P-4XL PoE Power Budget
Single Internal Fixed PSU
Recommended Secondary PSU
740W
1480W
Table 6. 5420F-8W-16P-4XE PoE Power
Budget
Single Internal Fixed PSU
Recommended Secondary PSU
480W
960W
Table 7. 5420F-16W-32P-4XE PoE Power
Budget
Single Internal Fixed PSU
Recommended Secondary PSU
872W*/960W**
1437W*/1874W**
Table 8. 5420F-16MW-32P-4XE PoE Power
Budget
Single Internal Fixed PSU
Recommended Secondary PSU
860W*/960W**
1425W*/1862W**
Note
* @ 100-120 VAC
Note
** @ 200-240VAC
5420M Series Switches
5420M series
switches have the following power reserve budgets:
Table 9. 5420M-24W-4YE PoE Power Budget
1 x 920W
2 x 920W
720W
1440W
Table 10. 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. 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
5520 Series Switches
5520 series
switches have the following power reserve budgets:
Table 12. 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. 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. 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
5720 Series Switches
series switches have the following power reserve budgets:
Table 15. 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
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 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.
