Juniper Networks EX8208 manual DC Power Supply LEDs in EX8200 Switches, State Description

Chapter 2: Component Descriptions

NOTE: EX8208 switches support 2000 W DC power supplies.

EX8216 switches support 3000 W DC power supplies.

Figure 29: DC Power Supply LEDs in an EX8200 Switch

Table 28 on page 51 describes the LEDs on a DC power supply in EX8200 switches.

Table 28: DC Power Supply LEDs in EX8200 Switches

LED	State	Description
A IN OK	Unlit	Indicates one of the following:
		• Power supply is disconnected from DC power feed.
		• DC power input voltage is not within normal
		operating range (-40 VDC through -72 VDC).
		• No DC power input.
	Green	• DC power input voltage is within normal operating
		range (–40 VDC through –72 VDC).
	Yellow	• DC input is present on the terminals but either the
		fuse is tripped or the ORing diode is open.
	Red	• DC power input voltage is reversed in polarity.
		NOTE: The DC power supply is protected against
		reverse polarity input for both DC input feeds.

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