Juniper EX3200 Hardware Guide

WARNING: DC-powered EX3200 switches are intended for installation only
in a restricted access location.
Before you begin connecting DC power to an EX3200 switch:
•
Ensure that you have connected the switch chassis to earth ground.
CAUTION: Before you connect power to the switch, a licensed electrician
must attach a cable lug to the grounding and power cables that you supply.
A cable with an incorrectly attached lug can damage the switch (for
example, by causing a short circuit).
To meet safety and electromagnetic interference (EMI) requirements and
to ensure proper operation, you must connect EX3200 switches to earth
ground before you connect them to power. For installations that require a
separate grounding conductor to the chassis, use the protective earthing
terminal on the switch chassis to connect to the earth ground. For
instructions on connecting earth ground, see “Connecting Earth Ground to
an EX Series Switch” on page 155.
•
Install the power supply in the chassis. For instructions on installing a power supply in
an EX3200 switch, see “Installing a Power Supply in an EX3200 Switch” on page 191.
Ensure that you have the following parts and tools available:
•
DC power source cables (12–14 AWG) with ring lug (Molex 190700067 or equivalent)
(not provided)
•
Phillips (+) screwdriver, number 2
To connect DC power to the switch:
1. Ensure that the power supplies are fully inserted in the chassis and the screws on their
faceplates are tightened.
2. Ensure that the input circuit breaker is open so that the voltage across the DC power
source cable leads is 0 V and that the cable leads will not become active while you
are connecting DC power.
NOTE: The DC power supply in the switch has four terminals labeled A+,
B+, A–, and B– (see Figure 37on page 163) for connecting DC powersource
cables labeled positive (+) and negative (–). The DC power supplies are
shipped with jumpers from A+ input toB+ input tied together and jumpers
from A– input to B– input tied together.
Copyright © 2016, Juniper Networks, Inc.164
EX3200 Switch Hardware Guide

Juniper EX3200 Specifications

General

Model	EX3200
Rack Units	1U
Layer Support	Layer 2 and Layer 3
Junos OS	Yes
Maximum VLANs	4093
DRAM	512 MB
Flash Memory	256 MB
Ports	24 or 48
Uplink Ports	4 SFP
Power Supply	AC or DC
MAC Address Table Size	16, 000 entries
Dimensions (W x D x H)	17.4 x 14.4 x 1.7 inches
Weight	12.3 lb (5.6 kg)
Operating Temperature	0°C to 40°C
Operating Humidity	10% to 85% (non-condensing)