Juniper EX4100 Hardware Manual page 84

Table 20: Airflow Direction in AC Power Supply Models for EX4100 Switches
Model
•
JPSU-920-AC-AFO
•
JPSU-150-AC-AFO
•
JPSU-150-AC-AFI
Specifications of the Power Cord for AC Power Supplies for EX4100 and EX4100-F
Switches
A detachable AC power cord is supplied with the AC power supplies. The coupler is type C13 as
described by International Electrotechnical Commission (IEC) standard 60320. The plug end of the
power cord fits into the power source outlet that is standard for your geographical location.
CAUTION: The AC power cord provided with each power supply is intended for use
with that power supply only and not for any other use.
NOTE: In North America, AC power cords must not exceed 4.5 meters (approximately 14.75 feet)
in length, to comply with National Electrical Code (NEC) Sections 400-8 (NFPA 75, 5-2.2) and
210-52 and with Canadian Electrical Code (CEC) Section 4-010(3). The cords supplied with the
switch are in compliance.
Table 21 on page 76 gives the AC power cord specifications for the countries and regions listed in the
table.
Label on Power Supply
AIR OUT
AIR IN
Direction of Airflow
Front to back. Air to cool the chassis
enters through the vents on the
front panel of the chassis. Hot air
exits through the vents on the rear
panel of the chassis.
Back to front. Air to cool the chassis
enters through the vents on the rear
panel of the chassis. Hot air exits
through the vents on the front
panel of the chassis.
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