Cisco C3850-NM-4-1G Manual - Page 3

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Installing a Network Module

Note

The switch generates logs when you insert or remove a network module with SFP/SFP+/SFP28/QSFP+ slots.

Use only supported network modules and Cisco pluggable transceivers. Each module has an internal serial

EEPROM that is encoded with security information.

The network module is hot-swappable. If you remove a module, replace it with another network module or

a blank module.

Note

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.

Before you begin

When installing network modules, observe these precautions:

• Do not remove the blank module from the slot unless you are installing a network module. A module

must be in the uplink slot at all times.

• Do not remove the dust plugs from the pluggable transceivers 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.

Note

Unlike other network modules, the C9300-NM-8X cannot be fully inserted and secured until the jackscrew

is properly tightened.

1. Push the module into the uplink slot until the jackscrew connects with the rightmost tab.

2. You will feel some light resistance, because a spring-loaded tab inside the slot will push back against the

C9300-NM-8X module

3. Continue to tighten the jackscrew while gently pushing the front panel of the network module into the

slot.

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. To remove the blank module, loosen the captive screw

on the module using a screwdriver until it completely disengages from the chassis.

Installing a Network Module