Juniper EX4100

If the switch is operaonal while you are replacing fan modules, you must remove only one fan module
at a me. The switch connues to operate for 60 seconds without thermal shutdown while you are
replacing a fan module.
Airow Direcon in EX4100 and EX4100-F Switch Models
Table 11 on page 55 shows the direcon of airow in EX4100 and EX4100-F models as shipped.
Table 11: Airow Direcon in EX4100 and EX4100-F Switch Models
Model Number Fan Modules and Power
Supply
Direcon of Airow
• EX4100-48P
• EX4100-24P
• EX4100-48MP
• EX4100-24MP
• EX4100-48T
•
EX4100-24T
The switch ships with two
fan modules and an AC
power supply, each with
the label AIR OUT and a
Juniper Gold handle.
Front-to-back—cold air to
cool the chassis enters
through the vents on the
front panel of the chassis,
and hot air exits through
the vents on the rear panel
of the chassis.
• EX4100-48T-DC
• EX4100-24T-DC
The switch ships with two
fan modules and a DC
power supply, each with a
label AIR OUT and a
Juniper Gold handle.
Front-to-back—cold air to
cool the chassis enters
through the vents on the
front panel of the chassis,
and hot air exits through
the vents on the rear panel
of the chassis.
• EX4100-F-24T
• EX4100-F-48T
One built-in fan with AFO
cooling.
Front-to-back—cold air to
cool the chassis enters
through the vents on the
front panel of the chassis,
and hot air exits through
the vents on the rear panel
of the chassis.
55