The C3850-NM-8-10G module is held secure in the switch by only one jackscrew. This screw also
helps to eject the module from its connector interface. Before the module can be removed completely,
the screw must be unscrewed all the way out. When removing the screw, a spring pushes the module
out when the screw is completely disengaged. Ensure that you hold the module securely until it is
completely removed.
Note
Step 5 Grasp the captive screws, and carefully slide it out of the slot.
Step 6 Install a replacement network module or a blank module in the slot.
Step 7 Place the module that you removed in an antistatic bag or other protective environment.
SFP, SFP+ and SFP28 Modules
Installing SFP, SFP+ and SFP28 Modules
Before you begin
You must have an installed network module to use SFP, SFP+ and SFP28 modules. See the switch release
notes on Cisco.com for the list of supported SFP, SFP+ and SFP28 modules. Use only supported
SFP/SFP+/SFP28 modules on the switch. For the latest information about supported SFP, SFP+ and SFP28
modules, refer to the Cisco Transceiver Modules Compatibility Information.
For information about installing, removing, cabling, and troubleshooting SFP/SFP+/SFP28 modules, see the
module documentation that shipped with your device.
Observe these precautions:
Class 1 laser product. Statement 1008
Warning
• Do not remove the dust plugs from the SFP/SFP+/SFP28 modules or the rubber caps from the fiber-optic
cable until you are ready to connect the cable. The plugs and caps protect the module ports and cables
from contamination and ambient light.
• Removing and installing an SFP/SFP+/SFP28 module can shorten its useful life. Do not remove and
insert any SFP/SFP+/SFP28 module more often than is necessary.
• To prevent ESD damage, follow your normal board and component handling procedures when connecting
cables to the switch and other devices.
• When you insert several SFP/SFP+/SFP28 modules in multiple switch ports, wait for 5 seconds between
inserting each SFP/SFP+/SFP28. This will prevent the ports from going into error disabled mode.
Similarly, when you remove an SFP/SFP+/SFP28 from a port, wait for 5 seconds before reinserting it.
Procedure
Step 1 Attach an ESD-preventive wrist strap to your wrist and to an earth ground surface.
Step 2 Find the send (TX) and receive (RX) markings that identify the top of the SFP/SFP+/SFP28 module.
Cisco Catalyst 9300 Series Switches Hardware Installation Guide
51
Installing a Network Module
SFP, SFP+ and SFP28 Modules
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