Juniper QFX5220, Руководство по оборудованию, Страница: 114 / 247

Before You Begin Rack Installation
Before you begin mounting a QFX5220 switch in the rack or cabinet:
1. Ensure that you understand how to prevent electrostatic discharge (ESD) damage. See “Prevention of
Electrostatic Discharge Damage” on page 235 .
2. Verify that the site meets the requirements described in “QFX5220 Site Preparation Checklist” on
page 81 .
3. Place the rack in its permanent location, allowing adequate clearance for airflow and maintenance, and
secure it to the building structure.
4. Read Chassis and Component Lifting Guidelines.
5. Remove the switch from the shipping carton (see “Unpacking a QFX5220” on page 113 ).
6. In addition to the items in Table 40 on page 113 and Table 41 on page 114 , ensure that you have the
following parts and tools available that are not normally provided with the device to mount the switch
in a rack:
•
ESD grounding strap
•
Appropriate screwdriver for the mounting screws
•
Screws to attach the device to the rack
•
Management host, such as a PC laptop, with a serial port
•
Grounding lug, grounding wire, screws and washers
•
Dust covers for unused ports
CAUTION: A QFX5220 requires two people for installation, one person to lift the device
into place and another person to attach the device to the rack. If you are installing the
QFX5220 above 60 in. (152.4 cm) from the floor, you can remove the power supplies
and fan modules to minimize the weight before attempting to install the device.
CAUTION: If you are mounting multiple devices on a rack, mount the device in the lowest
position of the rack first. Proceed to mount the rest of the devices from the bottom to
the top of the rack to minimize the risk of the rack toppling.
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