About This Guide

This guide provides the following information:

•Safety and environmental guidelines for the power supply (this page)

•Instructions for preparing cables to connect to the power supply (page 2)

•Operational notes about the power supply (page 3)

•Instructions for installing a Passport 8002PS DC Power Supply in an unoccupied bay of a Passport 8000 Series Chassis (page 3)

•Instructions for replacing an installed power supply in a Passport 8000 Series Chassis (page 6)

•Specifications for the power supply (page 8)

For more information about the Passport™ chassis, refer to Installing the Passport 8010 Chassis (part number 204518-B) and Installing the Passport 8006 Chassis (part number 207313-B).

Safety and Environmental Guidelines

The Passport 8002PS DC Power Supply converts ±48 VDC or ±60 VDC input into separate DC outputs to the chassis backplane. The input voltage range is ±42 to ±66 VDC with a maximum input current of 25 A (at 48 VDC) or 20 A (at 60 VDC).

For branch circuit over-current protection for the DC power source, check your national code requirements. For U.S. installations, follow NEC articles 422-28(e) and 422-30.

The Passport 8000 Series switches are designed to operate in ambient temperatures of 0° to 40° C (32° to 104° F) with a relative humidity of 10 percent to 85 percent (noncondensing).

Equipment with DC power supplies should be installed only in areas with limited access, such as dedicated equipment rooms.

Caution: The DC power input source for the Passport 8002PS DC Power Supply must be restricted to an output that is limited to Safety Extra Low Voltage (SELV) output per IEC950 Definition. This input power source must be reliably connected to ground and electrically isolated from the AC source.