Juniper EX4600 Hardware Guide

Field-Replaceable Units in an EX4600 Switch
Field-replaceable units (FRUs) are components that you can replace at your site. The EX4600 switch
FRUs are hot-insertable and hot-removable: you can remove and replace one of them without powering
o the switch or disrupng the switching funcon. FRU types are:
• Power supplies
• Fan modules
• Opcal transceivers
• Expansion modules
CAUTION: Replace a failed power supply with a blank panel or a new power supply
within one minute of removal to prevent chassis overheang. The switch connues to
operate with only one power supply running. Replace a failed fan module with a new
fan module within one minute of removal to prevent chassis overheang. Do not
operate the switch for more than one minute aer a fan module or power supply fails.
Table 3 on page 8 lists the FRUs for the EX4600 switch and acons to take before removing them.
Table 3: FRUs in a EX4600 Switch
FRU Required Acon
Power supplies None, if two power supplies are installed as recommended. If only one
power is installed, you must power down the switch. See "Removing a
Power Supply from an EX4600 Switch" on page 98.
Fan modules None. See "Removing a Fan Module from an EX4600 Switch" on page
95 for details.
Opcal transceivers None. We recommend that you disable the interface using the set
interfaces interface-name disable command before you remove the
transceiver. See Disconnect a Fiber-Opc Cable .
Expansion modules None. See "Removing an Expansion Module from an EX4600 Switch"
on page 102.
8

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