Juniper-networks J4350 Bedienungsanleitung Seite 91

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Chapter 5
Preparing fo
r Router Installation
Before installing a J-series Services Router, make sure that your site has the proper
operating environment and equipment. Use the checklist at the end of the chapter
to help you p
repare your site.
This chapte
r discusses the following topics:
General Site Guidelines on page 71
Rack Requirements on page 72
Router Envi
ronmental Tolerances o n page 73
Fire Safety Requirements on page 73
Power Guidelines, Requirements, and Specification s on pa ge 74
Network Cab
le Specifications on page 78
ISDN Provisioning on page 79
Site Preparation Checklist on page 79
General Sit
e Guidelines
The follow
ing precautions help you plan an acceptable operating environment for
your Services Router and avoid environmentally caused equipment failures:
For the cooling system to function properly, the airflow around the chassis
must be unrestricted. Allow at least 6 in. (15.2 cm) of clearance between the
front and b
ack of the chassis and adjacent equipment. Ensure that there is
adequate circulation in the installation location.
Follow ESD procedures described in “Preventing Elec trostatic D ischarge
Damage” on page 205, to avoid damaging equipment. Static discharge can
cause com
ponents to fail completely or inte rm ittently over time.
Install b
lank PIM panels in empty slots, to prevent any interruption or
reduction in the flow of air across internal components.
General Site Guidelines 71
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