To connect power to an EX4300 switch powered by DC power supply:
NOTE: EX4300-24T, EX4300-24P, EX4300-32F, EX4300-48T, EX4300-48T-AFI, EX4300-48P, EX4300-48MP,
and EX4300-48MP-S models do not support DC power. EX4300-24T-S, EX4300-24P-S, EX4300-32F-S,
EX4300-32F-DC, EX4300-48T-S, EX4300-48T-DC, EX4300-48T-DC-AFI, and EX4300-48P-S models support DC
power.
The DC power supply has terminals labeled V+, V–, V–, and V+ for connecting DC power source cables labeled positive (+) and
negative (–).
CAUTION: Ensure that you install the power supply first and then connect DC power source cables, before closing
the input breaker ON.
WARNING: Ensure that the input circuit breaker is open so that the cable leads will not become active while you are
connecting DC power.
1. Connect one end of the grounding cable to a proper earth ground.
CAUTION: A licensed electrician must attach the lug to the grounding cable.
2. Secure the grounding lug over the earthing terminal (located on the left side panel of the chassis) with washers and screws
by using an appropriate screwdriver.
3. Remove the terminal block cover. The terminal block cover is a piece of clear plastic that snaps into place over the terminal
block.
4. Remove the screws on the terminals by using the screwdriver. Save the screws.
5. Connect each power supply to the power source. Secure power source cables to the power supplies by screwing the ring lugs
attached to the cables to the appropriate terminals by using the screw from the terminals (see Figure 12).
•
To connect a power supply to a power source:
a. Secure the ring lug of the positive (+) DC power source cable to one of the + terminals on the DC power supply.
b. Secure the ring lug of the negative (–) DC power source cable to the – terminal adjacent to the + terminal that you
connected to on the DC power supply.
c. Connect the ground wire to earth ground if the switch is not in a grounded rack.
d. Tighten the screws on the power supply terminals until they are snug by using the screwdriver. Do not overtighten—apply
between 5 lb-in (0.56 Nm) and 6 lb-in (0.68 Nm) of torque to the screws.
If you have a second installed power supply, connect it in the same way you did the first.
•
To connect one power supply to two power sources:
Copyright © 2018, Juniper Networks, Inc.8
EX4300 Switch Quick Start
To Next Page
Loading...
Need help?
General
