Power Specifications

This topic describes power supply specifications, power consumption, and heat dissipation. Refer to the Extreme 8520 Data Sheet for up-to-date information.

Power Supply Specifications

Power Supply Specifications includes power supply specifications for Extreme 8520 switches.

Table 1. Power Supply Specifications

750W AC PSU

XN-ACPWR-750W-F/ R

750W DC PSU

XN-DCPWR-750W-F/ R

Dimensions3.15in W x 1.57in H x 8.11in D (8.0 cm x 4.0 cm x 20.6 cm)3.15in W x 1.57in H x 8.11in D (8.0 cm x 4.0 cm x 20.6 cm)
Weight1.79lb(0.81kg)1.85lb(0.85 kg)
Voltage Input Range100-140 VAC / 20 0 -240 VAC-48 to -60 VDC
Line Frequency Range50 – 60 HZN/A
PSU Input SocketIEC 320 C14Terminal Block
PSU Output CordIEC 320 C13N/A
Operating Conditions0˚– 55˚C operation0˚- 55˚C operation

Power Consumption

The following tables include power consumption information for the Extreme 8520 switches.

8520-48Y

The following tables provide AC and DC power consumption information for the 8520-48XT switches.

Table 2. AC IN: 220V
ItemTest Mode Consumption (W) Notes
Dual PowerSingle Power
PSU1 PSU2
1Empty Model 109104207
  1. No fiber transceivers inserted
  2. No port up link
  3. 85% fan duty
2Standby Mode114108216
  1. All ports up link
  2. 85% fan duty
3Typical Model 121116232
  1. Snake test with 70% traffic load (1518 byte packet length)
  2. 85% fan duty
4Stress Model154148299
  1. Snake test with 100% traffic load (64 byte packet length)
  2. 100% fan duty
Table 3. AC IN: 110V
ItemTest Mode Consumption (W) Notes
Dual PowerSingle Power
PSU1 PSU12
1Empty Model 112106209
  1. No fiber transceivers inserted
  2. No port up link
  3. 85% fan duty
2Standby Mode118111223
  1. All ports up link
  2. 85% fan duty
3Typical Model 126119239
  1. Snake test with 70% traffic load (1518 byte packet length)
  2. 85% fan duty
4Stress Model158152302
  1. Snake test with 100% traffic load (64 byte packet length)
  2. 100% fan duty
Table 4. DC IN: 48V
ItemTest Mode Consumption (W) Notes
Dual PowerSingle Power
PSU1 PSU12
1Empty Model 130100226
  1. No fiber transceivers inserted
  2. No port up link
  3. 85% fan duty
2Standby Mode134104235
  1. All ports up link
  2. 85% fan duty
3Typical Model 141111251
  1. Snake test with 70% traffic load (1518 byte packet length)
  2. 85% fan duty
4Stress Model178145325
  1. Snake test with 100% traffic load (64 byte packet length)
  2. 100% fan duty

8520-48XT

The following tables provide AC and DC power consumption information for the 8520-48XT switches.

Table 5. AC IN: 220V
ItemTest Mode Consumption (W) Notes
Dual PowerSingle Power
PSU1 PSU12
1Empty Model 148.5 136275.5
  1. No fiber transceivers inserted
  2. No port up link
  3. 85% fan duty
2Standby Mode155.8 143289
  1. All ports up link
  2. 85% fan duty
3Typical Model 162.2 148302.5
  1. Snake test with 70% traffic load (1518 byte packet length)
  2. 85% fan duty
4Stress Model204.8 189 389.5
  1. Snake test with 100% traffic load (64 byte packet length)
  2. 100% fan duty
Table 6. AC IN: 110V
ItemTest Mode Consumption (W) Notes
Dual PowerSingle Power
PSU1 PSU12
1Empty Model 149.8 138 250
  1. No fiber transceivers inserted
  2. No port up link
  3. 85% fan duty
2Standby Mode156.8 145 262
  1. All ports up link
  2. 85% fan duty
3Typical Model 164 151 275
  1. Snake test with 70% traffic load (1518 byte packet length)
  2. 85% fan duty
4Stress Model205 191354
  1. Snake test with 100% traffic load (64 byte packet length)
  2. 100% fan duty
Table 7. DC IN: 48V
ItemTest Mode Consumption (W) Notes
Dual PowerSingle Power
PSU1 PSU12
1Empty Model 161 125 280
  1. No fiber transceivers inserted
  2. No port up link
  3. 85% fan duty
2Standby Mode168 132 295
  1. All ports up link
  2. 85% fan duty
3Typical Model 175 139 308
  1. Snake test with 70% traffic load (1518 byte packet length)
  2. 85% fan duty
4Stress Model221 184 399
  1. Snake test with 100% traffic load (64 byte packet length)
  2. 100% fan duty

Power and Heat Dissipation

Power Supply Specifications includes power and heat dissipation information for Extreme 8520 switches.

Table 8. Power and Heat Dissipation

Switch Model

Minimum Heat Dissipation (BTU/hr) (Idle, no ports linked)

Minimum Power Consumption (Watts) (Idle, no ports linked)

Maximum Heat Dissipation (BTU/hr) (Fans high, all ports 100% traffic)

Maximum Power Consumption (Watts) (Fans high, all ports 100% traffic)

8520-48YAC553BTU/ hr167W1600BTU/ hr469W
8520-48YDC553BTU/ hr167W1600BTU/ hr469W
8520-48XTAC642BTU/ hr194W1225BTU/ hr359W
8520-48XTDC642BTU/ hr194W1225BTU/ hr359W
9037126-00 Rev AE