Dc Power Supply In An Ex9214 Switch - Juniper EX9214 Hardware Manual

Table 22: AC Power Supply LEDs in EX9214 Switches (continued)
Feed
Mode Description
Two-Feed The power input to the AC appliance inlet
located on the chassis above the power
supply is connected and the power input
to the AC appliance inlet on the power
supply faceplate is not connected; the
input is within the acceptable range, but
the power supply is not functioning
normally and is not providing power to the
switch chassis.
The power input to the AC appliance inlet
on the power supply faceplate is
connected and the power input to the AC
appliance inlet located on the chassis
above the power supply is not connected;
the input is within the acceptable range,
but the power supply is not functioning
normally and is not providing power to the
switch chassis.
The power input to the AC appliance inlet
located on the chassis above the power
supply and the power input to the AC
appliance inlet on the power supply
faceplate are connected; the inputs are
within the acceptable ranges and the
power supply is functioning normally and
providing power to the switch chassis.
Related
Documentation

DC Power Supply in an EX9214 Switch

Copyright © 2017, Juniper Networks, Inc.
AC Power Supply in an EX9214 Switch on page 45
Power Requirements for EX9200 Switch Components on page 95
An EX9214 switch is configurable with four DC power supplies. The power supplies connect
to the midplane, which distributes the different output voltages produced by the power
supplies to the switch components, depending on their voltage requirements. Each power
supply is cooled by its own internal cooling system.
CAUTION: EX9214 switches use either AC or DC power supplies. Do not mix
AC and DC power supplies in a switch. The first type of power supply detected
by the switch when it is initially powered on determines the type of power
supply the switch will operate with. All installed power supplies of the other
type are disabled by the switch. If you install a power supply of the other type
LEDs
AC-1 OK AC-2 OK
Green Off
Off Green
Green Green
Chapter 4: Power Supplies
DC OK PS FAIL
Off Red
Off Red
Green Off
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