Power Guidelines, Requirements, And Specifications; Site Electrical Wiring Guidelines; Signaling Limitations - Juniper J2300 User Manual

eliminate the fire. For extinguishing fire on or around equipment that draws air
from the environment for cooling, use this type of inert oxygen displacement
extinguisher instead of an extinguisher that leave residues on equipment.
Do not use multipurpose Type ABC chemical fire extinguishers (dry chemical
fire extinguishers) near Juniper Networks equipment. The primary ingredient in
these fire extinguishers is monoammonium phosphate, which is very sticky and
difficult to clean. In addition, in minute amounts of moisture, monoammonium
phosphate can become highly corrosive and corrodes most metals.
NOTE: To keep warranties effective, do not use a dry chemical fire extinguisher to
control a fire at or near a Juniper Networks router. If a dry chemical fire extinguisher
is used, the unit is no longer eligible for coverage under a service agreement.
Any equipment in a room in which a chemical fire extinguisher has been
discharged is subject to premature failure and unreliable operation. The
equipment is considered to be irreparably damaged.
We recommend that you dispose of any irreparably damaged equipment
in an environmentally responsible manner.

Power Guidelines, Requirements, and Specifications

All Services Routers use AC power. For information about each router's power
system, see "J2300 Power System" on page 15, "J4300 Power System" on page 26,
and "J6300 Power System" on page 26.
For site wiring and power system guidelines, requirements, and specifications, see
the following sections:

Site Electrical Wiring Guidelines

When planning the electrical wiring at your site, consider the factors
discussed in the following sections.

Signaling Limitations

Improperly installed wires can emit radio interference. In addition, the potential
for damage from lightning strikes increases if wires exceed recommended
distances, or if wires pass between buildings. The electromagnetic pulse (EMP)
caused by lightning can damage unshielded conductors and destroy electronic
Site Electrical Wiring Guidelines on page 545
Router Power Requirements on page 546
AC Power, Connection, and Power Cord Specifications on page 547
Power Guidelines, Requirements, and Specifications
Preparing for Router Installation
545