Cisco C3850-NM-4-1G User Manual

Installing Network Modules
The switch can operate without a network module, but a blank module (with no ports or SFP slots) is
available and should be installed when uplink ports are not required.
Note
The switch generates logs when you insert or remove a network module with SFP slots.Note
Use only supported network modules and SFP or SFP+ modules. Each module has an internal serial EEPROM
that is encoded with security information. For information about supported SFP modules, see SFP and SFP+
Modules.
The network module is hot-swappable. If you remove a module, replace it with another network module or
a blank module.
The switch complies with EMC, safety, and thermal specifications when a network module is present. If
no uplink ports are required, install a blank network module.
Note
Before You Begin
When installing network modules, observe these precautions:
•
Do not remove the blank module from the slot unless you are installing an SFP or SFP+ module. Either
a module or a dust plug must be in the slot at all times.
•
Do not remove the dust plugs from the fiber-optic SFP modules or the rubber caps from the fiber-optic
cable until you connect the cable. The plugs and caps protect the module ports and cables from
contamination and ambient light.
•
Removing and installing a network module can shorten its useful life. Do not remove and insert a network
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.
Procedure
Step 1
Attach an ESD-preventive wrist strap to your wrist and to an earth ground surface.
Step 2
Remove the module from the protective packaging.
Step 3
Remove the blank module from the switch and save it.
Verify the correct orientation of your module before installing it. Incorrect installation can damage
the module.
Caution
Do not install the network module with connected cables or installed SFP modules. Always remove
any cables and modules before you install the network module.
Caution
A module interface might become error-disabled when a network module with connected fiber-optic
cables is installed or removed. If an interface is error-disabled, you can reenable the interface by
using the shutdown and no shutdown interface configuration commands.
Caution
Catalyst 3850 Switch Hardware Installation Guide
8 OL-26779-05
Installing a Network Module
Installing Network Modules

Cisco C3850-NM-4-1G Specifications

General

Brand	Cisco
Model	C3850-NM-4-1G
Category	Control Unit
Language	English