J4300 And J6300 Physical Interface Modules (Pims); J4300 Power System; J6300 Power System - Juniper J2300 Getting Started Manual

J4300 and J6300 Physical Interface Modules (PIMs)

Physical Interface Modules (PIMs) provide the physical connection to various network
media types. For more information, see "Field-Replaceable PIMs" on page 49.
For pinouts of PIM cable connectors, see "Network Cable Specifications
and Connector Pinouts" on page 201. For PIM replacement instructions,
see "Replacing a PIM" on page 164.

J4300 Power System

The J4300 Services Router uses either AC or DC power. The autosensing power
supply (see Figure 8 or Figure 9) 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. An 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) that requires a dedicated 15 A (–48 VDC) circuit breaker.
For information about site power preparations, see "Power Guidelines,
Requirements, and Specifications" on page 89. For information about connecting
the router to power and ground, see "Connecting Power" on page 102.

J6300 Power System

The J6300 Services Router uses either AC or DC power. You can install
one or two autosensing, load-sharing power supplies at the bottom rear
of the chassis, as shown in Figure 10 or Figure 11. The power supplies
distribute the different output voltages to the router components, depending
on their voltage requirements. When the 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 on the power supply faceplate.
Table 13 describes the J6300 power supply LED.
Table 13: J6300 Power Supply LED
State
Off
Description
No power flowing to the power supply.
J4300 and J6300 Services Router Hardware Features
System Overview
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