Juniper Networks EX8208 Switch User Manual


 
The tables in this section list the N+1 power requirements of different EX8200 switch
configurations:
Table 26 on page 50—Lists the N+1 power requirements of EX8208 switch
configurations that use 2000 W DC power supplies.
Table27onpage50—ListstheN+1powerrequirementsofEX8216switchconfigurations
that use 3000 W DC power supplies.
Table 26: N+1 Power Redundancy Configurations for Different EX8208
Switch Configurations Using 2000 W DC Power Supplies
PowerSupplies
Neededfor N+1
PowerSupplies
Needed(N)Input Voltage
Switch
Configuration
21–40 VDC through
–72VDC
Base
43–40 VDC through
–72VDC
Fullyloaded with
8-port SFP+ line
cards
Table 27: N+1 Power Redundancy Configurations for Different EX8216
Switch Configurations Using 3000 W DC Power Supplies
PowerSupplies
Neededfor N+1
PowerSupplies
Needed(N)Input Voltage
Switch
Configuration
21–40 VDC through
–72VDC
Base
54–40 VDC through
–72VDC
Fullyloaded with
8-port SFP+ line
cards
Related Topics DC Power Specifications for EX8200 Switches on page 110
DC Power Supply LEDs in an EX8200 Switch on page 50
Calculating Power Requirements for an EX8216 Switch
Installing a DC Power Supply in an EX8200 Switch on page 152
Removing a DC Power Supply from an EX8200 Switch on page 209
DC Power Supply LEDs in an EX8200 Switch
A DC power supply has four LEDs on its faceplate: FAIL, OUT OK, AIN OK, and B IN OK
LEDs.ThetextAorB nexttotheOKINLEDsindicateswhichinputlugtheLEDcorresponds
to. All fourLEDs display information about the status of the power supply. See Figure 29
on page 51.
Copyright ©2010,Juniper Networks,Inc.50
CompleteHardwareGuide forEX8208 EthernetSwitches