Juniper EX4200 User Manual

CHAPTER 16
Replacing Cooling System Component
•
Installing a Fan Tray in an EX4200 Switch on page 207
•
Removing a Fan Tray from an EX4200 Switch on page 208
Installing a Fan Tray in an EX4200 Switch
The fan tray is a hot-removable and hot-insertable field-replaceable unit (FRU) installed
in the rear panel of the switch: You can remove and replace it without powering off the
switch or disrupting switch functions.
All the EX4200 switch models, except the EX4200-24F-S and EX4200-48T-S switches
are shipped with one fan tray pre-installed in the rear panel of the switches.
EX4200-24F-S and EX4200-48T-S switches are not shipped with pre-installed fan tray;
you must order them separately.
Ensure that you have the following parts and tools available:
•
A Phillips (+) screwdriver, number 2
To install a fan tray in an EX4200 switch chassis (see Figure 54 on page 208):
CAUTION: If you are installing a fan tray in an EX4200 switch, ensure the
fans face downwards.
1. Remove the fan tray from its bag. Using both hands, align the tray with the fan tray
guides on the fan tray slot on the rear panel of the chassis and slide it in until it is fully
seated.
2. Tighten the screw or screws on the fan tray by using the screwdriver.
207Copyright © 2015, Juniper Networks, Inc.

Juniper EX4200 Specifications

General

Model	EX4200
Switching Capacity	128 Gbps
Layer	Layer 2 and Layer 3
Form Factor	1U
Throughput	96 Mpps
Maximum VLANs	4096
MAC Address Table Size	16, 000
DRAM	1 GB
Flash Memory	1 GB
Forwarding Rate	96 Mpps
JUNOS Software	Yes
Ports	24 or 48
Stacking	Up to 10 switches in a Virtual Chassis configuration
Power Supply	AC or DC
Management	CLI, SNMP, J-Web
Input Voltage	100-240 VAC or -48 VDC
Operating Temperature	0°C to 45°C
Redundancy	Redundant power supplies
Virtual Chassis Technology	Yes
Storage Temperature	-40°C to 70°C
Humidity	5% to 90% non-condensing