Juniper Networks M10, M5 manual Power Guidelines, Requirements, and Specifications

Power Guidelines, Requirements, and Specifications

In addition, in minute amounts of moisture, monoammonium phosphate can become highly corrosive and corrodes most metals.

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.

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.

We recommend that you dispose of any irreparably damaged equipment in an environmentally responsible manner.

Power Guidelines, Requirements, and Specifications

The router uses either AC or DC power. There are two load-sharing, isolated power supplies located at the bottom rear of the chassis, as shown in Figure 3. The power supplies connect to the midplane, which distributes power to router components according to their individual voltage requirements. When the power supplies are installed and operational, they automatically share the electrical load. If a power supply stops functioning for any reason, the remaining power supplies instantly begin providing all the power the router needs for normal functioning and can provide full power indefinitely.

Mixing AC and DC power supplies is not supported. The two power supplies must be either both AC or both DC.

For site wiring and power system guidelines, requirements, and specifications, see the following sections:

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Site Electrical Wiring Guidelines on page 43

Router Power Requirements on page 43

AC Grounding and Power Cord Specifications on page 45

DC Grounding, Connection, and Cable Specifications on page 46

42M5 and M10 Internet Routers Hardware Guide