Juniper EX4600 Hardware Guide

CAUTION: Replace a failed fan module with a new fan module within 1 minute of
removal to prevent chassis overheang. Before removing the fan module, ensure you
have a replacement fan module at hand.
NOTE: The fan module provides FRU-to-port or port-to-FRU airow depending on the switch
product SKU you purchase. In legacy switches, or switches with an LCD, this airow is called
front to back and back to front.
To install a fan module in an EX4600 switch (see Figure 39 on page 97 ):
1. Aach the ESD grounding strap to your bare wrist, and connect the strap to the ESD point on the
chassis.
2. Taking care not to touch the connectors, remove the fan module from its bag.
3. Align the module with the open slot on the management panel of the chassis and slide it in unl it is
fully seated.
CAUTION: Damage can occur if you aempt to install a fan module into a chassis with
a dierent airow direcon. Compare the switch product SKU with the airow marking
on the handle to ensure that you are installing a fan module with the same airow
direcon as the chassis. The fan modules are designed so that they can only be
inserted into the EX4600 switch product SKU that supports the same airow type. See
"Cooling System and Airow in an EX4600 Switch" on page 21 for more informaon.
4. Using a Phillips screwdriver, turn the locking screw unl it is ght.
Figure 39: Installing a Fan Module in an EX4600 Switch
97

Juniper EX4600 Specifications

General

Rack Units	1U
Junos OS	Yes
Product Series	EX Series
DRAM	8 GB
Flash Memory	16 GB
Ports	4 x 40GbE QSFP+ ports
Power Supply	Dual, hot-swappable
MAC Address Table Size	288, 000
Jumbo Frames	9216 bytes
Input Voltage	100-240 V AC
Operating Temperature	0°C to 40°C
Memory	8 GB
Storage	16 GB