Juniper Networks EX8208 manual DC Power Supply LEDs in an EX8200 Switch

Complete Hardware Guide for EX8208 Ethernet Switches

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.

•Table 27 on page 50—Lists the N+1 power requirements of EX8216 switch configurations 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

Switch		Power Supplies	Power Supplies
Configuration	Input Voltage	Needed (N)	Needed for N+1
Base	–40 VDC through	1	2
	–72 VDC
Fully loaded with	–40 VDC through	3	4
8-port SFP+ line	–72 VDC
cards

Table 27: N+1 Power Redundancy Configurations for Different EX8216

Switch Configurations Using 3000 W DC Power Supplies

Switch		Power Supplies	Power Supplies
Configuration	Input Voltage	Needed (N)	Needed for N+1
Base	–40 VDC through	1	2
	–72 VDC
Fully loaded with	–40 VDC through	4	5
8-port SFP+ line	–72 VDC
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, A IN OK, and B IN OK LEDs. The text A or B next to the OKIN LEDs indicates which input lug the LED corresponds to. All four LEDs display information about the status of the power supply. See Figure 29 on page 51.

50 Copyright © 2010, Juniper Networks, Inc.