Juniper EX4600 Hardware Guide

Maintaining the EX4600 Switch Cooling System
IN THIS SECTION
Removing a Fan Module from an EX4600 Switch | 95
Installing a Fan Module in an EX4600 Switch | 96
Removing a Fan Module from an EX4600 Switch
Before you remove a fan module from an EX4600 switch, ensure that you have taken the necessary
precauons to prevent electrostac discharge (ESD) damage (see Prevenon of Electrostac Discharge
Damage
).
Ensure that you have the following parts and tools available to remove a fan module from an EX4600
switch:
• ESD grounding strap
• Anstac bag or an anstac mat
The fan modules in an EX4600 switch are hot-removable and hot-insertable eld-replaceable units
(FRUs): you can remove and replace them without powering o the switch or disrupng switch
funcons.
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.
To remove a fan module from an EX4600 switch (see Figure 38 on page 96):
1. Place the anstac bag or the anstac mat on a at, stable surface.
2. Aach the ESD grounding strap to your bare wrist, and connect the strap to the ESD point on the
chassis.
3. Using a Phillips screwdriver, loosen the locking screw (3 or 4 turns).
4. Grasp the handle on the fan module and squeeze the outside of the handle to release the module.
95

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