Juniper BT8A78CH1, Обзор оборудования и руководство по установке

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NOTE: BTI7800 equipment should be powered in accordance with DC-I
(isolated DC return) equipment installation criteriathe DC return terminal is
not connected to the equipment frame or the equipment grounding means.
To understand how the power is distributed throughout the chassis, refer to “BTI7814
Power Distribution Plan” on page 40 . For procedures to replace a DC PEM, refer to
“Replacing the BTI7814 DC PEM” on page 180 .
WARNING:
This equipment is intended to be installed and serviced by qualified
personnel.
•
• To avoid personal injury or damage to chassis components, ensure there
is no power going to the chassis.
•
Make sure you are familiar with the site and safety guidelines described in
the BTI7800 Series Hardware Overview and Installation Guide.
WARNING: Before you proceed:
•
Do not work alone.
•
The chassis must be grounded to the frame in which it is mounted.
• The power source to which you are connecting the chassis must be powered
off.
•
The circuit breaker switch, to which the power source is wired, must be
shut off.
• Locate the emergency power-off switch for the location in which you are
working.
•
Do not overload the power source to which you are connecting the chassis.
•
Check your work area for possible hazards, such as ungrounded power
extension cables and moist floors.
• Remove all jewelry, neckties, and scarves.
•
Use appropriate caution. This documentation does not cover every potential
hazardous condition.
Installation Tools and Kits
• Number 1 and Number 2 Phillips screwdrivers
• 10 mm nut-driver
•
Wire stripping and crimping tool
95 Copyright © 2019, Juniper Networks, Inc.
Chapter 4: Installing the BTI7800 Series Chassis