Ex4300 Switch Components - Juniper QFX5110 Series Hardware Documentation

All the EX4300 switch models, except EX4300-24T-S, EX4300-24P-S, EX4300-32F-S, EX4300-48T-S,
EX4300-48P-S, and EX4300-48MP-S switches are shipped with two fan modules preinstalled in the rear
panel of the switch. EX4300-24T-S, EX4300-24P-S, EX4300-32F-S, EX4300-48T-S, EX4300-48P-S, and
EX4300-48MP-S switches are not shipped with preinstalled fan modules; you must order the fan modules
separately.
The fan modules are available in two models that have different airflow directions—back-to-front airflow,
indicated by the label AIR IN (AFI) and front-to-back airflow, indicated by the label AIR OUT (AFO). See
Cooling System and Airflow in an EX4300 Switch.
CAUTION:
Fan modules with different airflow labels (AIR IN (AFI) and AIR OUT (AFO)) in the
same chassis.
Power supplies with different airflow labels (AIR IN (AFI) and AIR OUT (AFO)) in the
same chassis.
Fan modules and power supplies with different airflow labels (AIR IN (AFI) and AIR
OUT (AFO)) in the same chassis.
AC and DC power supplies in the same chassis.

EX4300 Switch Components

Figure 38 on page 81 shows the components on the front panel of a 24-port EX4300 switch (with an SFP+
uplink module installed).
Figure 38: Components on the Front Panel of a 24-Port EX4300 Switch
1 Mini-USB console port
—
2 LCD panel
—
3 LCD panel Menu button
—
4 Chassis status LEDs
—
Figure 39 on page 82 shows the components on the front panel of a 32-port EX4300 switch.
Do not mix:
5 LCD panel Enter button
—
6 SFP+ uplink module (optional)
—
7 Network ports
—
81