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