Field-Replaceable Units in EX4300 Switches
Field-replaceable units (FRUs) are components that you can replace at your site. The FRUs in EX4300 switches are hot-removable and hot-insertable: You can remove and replace them without powering off the switch. The FRUs in EX4300 switches are:
The following switch models ship with one power supply and two fan modules preinstalled:
The following switch models ship without any power supply or fan modules preinstalled:
Uplink modules and transceivers are not part of the shipping configuration. If you want to purchase any of these components, power supplies, or fan modules for your switch, you must order them separately.
If you have a Juniper J-Care service contract, register any addition, change, or upgrade of hardware components at https://www.juniper.net/customers/support/tools/updateinstallbase/ . Failure to do so can result in significant delays if you need replacement parts. This note does not apply if you replace existing components with the same type of component.