Juniper Networks J2350 manual DC Power Electrical Safety Guidelines

JUNOS Software with Enhanced Services Hardware Guide

■When a router is equipped with two AC power supplies, both power cords (one for each power supply) must be unplugged to completely disconnect power to the router.

■Note the following warnings printed on the AC power supply faceplate:

■To completely de-energize the system disconnect maximum of 2 power cordsets.

■Apparaten skall anslutas till jordat uttag när den ansluts till ett nätverk. [Swedish]

Power Cable Warning (Japanese)

WARNING: The attached power cable is only for this product. Do not use the cable for another product.

DC Power Electrical Safety Guidelines

The following electrical safety guidelines apply to a DC-powered router:

■A DC-powered router is equipped with a DC terminal block that is rated for the power requirements of a maximally configured router. To supply sufficient power, terminate the DC input wiring on a facility DC source capable of supplying at least 8 A @ –48 VDC. Incorporate an easily accessible disconnect device into the facility wiring. Be sure to connect the ground wire or conduit to a solid office (earth) ground. A closed loop ring is recommended for terminating the ground conductor at the ground stud.

■In the United States, a restricted access area is one in accordance with Articles 110-16, 110-17, and 110-18 of the National Electrical Code ANSI/NFPA 70.

NOTE: Primary overcurrent protection is provided by the building circuit breaker. This breaker should protect against excess currents, short circuits, and earth faults in accordance with NEC ANSI/NFPA70.

■Ensure that the polarity of the DC input wiring is correct. Under certain conditions, connections with reversed polarity might trip the primary circuit breaker or damage the equipment.

204■ Safety Guidelines and Warnings