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AC Power Supply in an EX8200 Switch
EX8200 switches can use either AC or DC power supplies. This topic describes the AC
power supplies in EX8200 switches:
•
AC Power Supply Description on page 40
•
N+1 Redundancy Configuration of AC Power Supplies on page 42
•
N+N Redundancy Configuration of AC Power Supplies on page 43
AC Power Supply Description
The AC power supplies in EX8200 switches are hot-insertable and hot-removable
field-replaceable units (FRUs).
You can install up to six AC power supplies in an EX8200 switch. Power supplies are
installed at the bottom of the chassis in slots PSU 0 through PSU 5 (left to right). All
power supplies are accessible from the front of the chassis.
WARNING: The switch is pluggable type A equipment installed in a restricted-access
location.Ithasaseparateprotectiveearthingterminalprovidedonthechassisinaddition
tothegroundingpinofthepowersupplycord.Thisseparateprotectiveearthingterminal
must be permanently connected to earth ground.
NOTE: All base configuration EX8200 switches are shipped with two power supplies.
Coverpanelsareinstalledoverthe remainingfourpowersupplyslots.Additionalpower
supplies can be added to base configuration switchesas necessary.
For details about differentswitch configurations,see “EX8208 Switch Configurations”
on page 6 or EX8216 Switch Configurations.
Each AC power supply weighs approximately 7 lb (3.2 kg) and has an independent 16 A
rated AC inlet on its front. Each inletrequiresa dedicated AC powerfeed. EachAC power
supply has an Enable switch, a fan, and three LEDs on the faceplate that indicate the
status of the power supply. See Figure 25 on page 41.
Copyright ©2010,Juniper Networks,Inc.40
CompleteHardwareGuide forEX8208 EthernetSwitches