Juniper-networks J4350 Instrukcja Użytkownika Strona 42

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J4350 and J6350 Services Router Getting Started Guide
router or disrupting the routing functions. To avoid electrical injury, carefully follow
the instructi
ons in “Replacing Power System Components” on page 158.
NOTE: You c anno t mix DC and AC power supplies in the same chassis.
WARNING: DC-powered Services Routers a re intended for installation only in
arestrictedac
cess location.
Cooling System
Thecoolingsystemincludesthreefansattherearofthechassis. Theairflow
produced by these fans keeps router components within the acceptable
temperature r
ange (see Figure 9). The spe ed of the fans is adjusted
automatically according to current temperature.
An air filter protects the air intake opening at the front of the chassis and must be
replaced periodically. For instructions, see “Replacing an Air Filter” on page 1 70.
The Routing Engine monitors the temperature of the router components. If the
ambient maxi
mum temperature specification is exceeded and the router cannot be
adequately cooled, the Routing Eng ine shuts down the ha rdware components.
An additional fan is p art of e ach power supply. This fan is not
regulated by the operating system.
22 J4350 and J6350 Services Router Hardware Features
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