CHAPTER 2
Component Descriptions and
Specifications
•
Field-Replaceable Units on the JA2500 Junos Space Appliance on page 13
•
AC Power Cord Specifications for Junos Space Appliances on page 14
•
AC Power Supply in Junos Space Appliances on page 15
•
DC Power Supply in Junos Space Appliances on page 17
•
Chassis Console Port Pinouts on page 18
Field-Replaceable Units on the JA2500 Junos Space Appliance
Field-replaceable units (FRUs) are components that you can replace at your site. The
FRUs in the JA2500 Junos Space Appliance are of the following types:
•
Hot-swappable FRUs: You can remove and replace these components without powering
off the appliance.
•
Cold-swappable FRUs: You must power off the appliance in order to remove, replace,
or add these components.
The FRUs supported in the JA2500 appliance are listed in
.
Table 8: JA2500 Appliance FRUs
Type
FRU
Cold-swappable, if the appliance has only one power supply module
Hot-swappable, if the appliance has an additional redundant, functioning power supply
module that is plugged into a separate power circuit
AC power supply
Hot-swappable
Cooling fans
Cold-swappable, if the appliance has only one power supply module
Hot-swappable, if the appliance has an additional redundant, functioning power supply
module that is plugged into a separate power circuit
DC power supply
Hot-swappable
Hard disks
13
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