Services Routers Hardware Guide

to receive any core files generated during a failure. For information about configuring
a USB storage device, see the JUNOS Software Administration Guide.
NOTE: For a list of supported USB storage devices, see the JUNOS Software with
Enhanced Services Release Notes at http://www.juniper.net.
J2320 and J2350 External Compact Flashes
On J2320 and J2350 routers, an external compact flash, also known as removable
compact flash, accepts a type I or II compact flash, as defined in the CompactFlash
Specification published by the CompactFlash Association. The J2320 and J2350 chassis
has a slot on the rear for external compact flashes (see Figure 3 on page 9). When
the external compact flash is installed and configured, it automatically acts as the
secondary boot device if the internal compact flash fails on startup.
Depending on the capacity of the external compact flash, you can also configure it
to receive any core files generated during a failure. For information about configuring
an external compact flash, see the JUNOS Software Administration Guide.
J2320 Power System
The J2320 Services Router uses AC power (see Figure 3 on page 9). The autosensing
power supply distributes the different output voltages to the router components
according to their voltage requirements. The power supply is fixed in the chassis,
and is not field-replaceable.
The AC power supply has a single AC appliance inlet that requires a dedicated AC
power feed.
The J2320 AC-powered chassis has a power switch and does not include a power
LED.
For information about site power preparations, see “Power Guidelines, Requirements,
and Specifications” on page 67. For information about connecting the router to power
and ground, see “Connecting Power” on page 84.
J2350 Power System
The J2350 Services Router uses either AC or DC power. The autosensing power supply
(see Figure 4 on page 9 or Figure 5 on page 10) distributes the different output
voltages to the router components according to their voltage requirements. The
power supply is fixed in the chassis, and is not field-replaceable.
The AC power supply has a single AC appliance inlet that requires a dedicated AC
power feed. The DC power supply has a terminal block that provides a single DC
input (–48 VDC and return) and requires a dedicated 15 A (–48 VDC) circuit breaker.
The J2350 AC-powered or DC-powered chassis has a power switch and does not
include a power LED.
18 ■ J2320 and J2350 Services Router Hardware Features
JUNOS Software with Enhanced Services Hardware Guide