Juniper Networks J2350 manual J6350 Power System, Power Supply LED, State Description

Chapter 2: J-series Services Router Hardware Features

The J4350 AC-powered chassis has a power switch and does not include a power

LED.

The J4350 DC-powered chassis includes a power supply LED located to the upper right of the power supply connector. Table 17 on page 31 describes the power supply LED.

Table 17: Power Supply LED

State	Description
Off	No power is flowing to the power supply.
Green	Power supply is connected and power is flowing.
Yellow	Power supply is connected, but the router is not powered on.

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.

NOTE: You cannot mix DC and AC power supplies in the same chassis.

WARNING: DC-powered Services Routers are intended for installation only in a restricted access location.

J6350 Power System

The J6350 Services Router uses either AC or DC power. You can install one or two autosensing, load-sharing power supplies on the system board at the bottom of the chassis, as shown in Figure 15 on page 22 or Figure 17 on page 23. The power supplies distribute the different output voltages to the router components, depending on their voltage requirements. When two power supplies are installed and operational, they automatically share the electrical load.

For full redundancy, two power supplies are required. If a power supply stops functioning for any reason, the second power supply instantly begins providing all the power the router needs for normal functioning. It can provide full power indefinitely.

Each power supply has an LED located to the upper right of the power supply connector. Table 17 on page 31 describes the power supply 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.

J4350 and J6350 Services Router Hardware Features ■ 31