Maintaining an Uplink Module in an EX4300 Switch
Removing an Uplink Module from an EX4300 Switch
Before you begin removing an uplink module from the switch:
Ensure that you have taken the necessary precautions to prevent electrostatic discharge (ESD) damage (see Prevention of Electrostatic Discharge Damage).
If there are any transceivers installed in the uplink module, remove them before you remove the uplink module. For instructions on removing transceivers, see Remove a Transceiver.
Ensure that you have the following parts and tools available:
ESD grounding strap
Phillips (+) screwdriver, number 2
A replacement uplink module or cover panel
An antistatic bag or antistatic mat
The uplink module in EX4300 switches is hot-removable and hot-insertable field-replaceable unit (FRU): You can remove and replace it without powering off the switch or disrupting switch functions.
We recommend that you install either a replacement uplink module or a cover panel in the empty module slot to prevent chassis overheating and dust accumulation.
To remove an uplink module from the switch (see Figure 1, Figure 2, and Figure 3):
![Removing a 4-Port 1-Gigabit Ethernet/10-Gigabit Ethernet SFP+ Uplink Module from a 24-Port or 48-Port EX4300 Switch Except EX4300-48MP and EX4300-48MP-S Switches](../task/../../images/g022097.png)
The procedure is the same for EX4300-48MP and EX4300-48MP-S switches.
![Removing a 2-Port 40-Gigabit Ethernet QSFP+ Uplink Module from a 32-Port EX4300 Switch](../task/../../images/g022142.png)
![Removing an 8-Port 10-Gigabit Ethernet SFP+ Uplink Module from a 32-Port EX4300 Switch](../task/../../images/g022141.png)
Installing an Uplink Module in an EX4300 Switch
Before you begin installing an uplink module in the switch:
Ensure that you have taken the necessary precautions to prevent ESD damage (see Prevention of Electrostatic Discharge Damage).
Ensure that you have the following parts and tools available:
Electrostatic discharge (ESD) grounding strap (If a grounding strap is not available, follow the alternative grounding method described in Step 1 of the following procedure.)
Phillips (+) screwdriver, number 2
You can install an uplink module in the front panel of an EX4300 switch. The uplink module in EX4300 switches is a hot-removable and hot-insertable unit (FRU): You can remove and replace it without powering off the switch.
If you have set an uplink module port as a Virtual Chassis port (VCP), removing the uplink module breaks the setting. You must reset the port as a VCP after you replace the module. See Setting an Uplink Port on an EX Series or QFX Series Switch as a Virtual Chassis Port.
To install an uplink module in the switch (see Figure 4, Figure 5, and Figure 6):
![Installing a 4-Port 1-Gigabit Ethernet/10-Gigabit Ethernet SFP+ Uplink Module in a 24-Port or 48-Port EX4300 Switch Except EX4300-48MP and EX4300-48MP-S Switches](../task/../../images/g022104.png)
The procedure is the same for EX4300-48MP and EX4300-48MP-S switches.
![Installing a 2-Port 40-Gigabit Ethernet QSFP+ Uplink Module in a 32-Port EX4300 Switch](../task/../../images/g022140.png)
![Installing an 8-Port 10-Gigabit Ethernet SFP+ Uplink Module in a 32-Port EX4300 Switch](../task/../../images/g022139.png)
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.