G4 LED4G2 LED2
Network Module Link StatusColor
Link is off.Off
Link is on; no activity.Green
Activity on a link; no faults.
The LED will blink green even when there is very little control traffic.
Note
Blinking green
Link is off due to a fault or because it has exceeded a limit set in the switch software.
Link faults occur when noncompliant cabling is connected to an SFP/SFP+ port.
Use only standard-compliant cabling to connect to Cisco SFP/SFP+ ports. You
must remove from the network any cable or device that causes a link fault.
Caution
Blinking amber
Link for the SFP/SFP+ has been disabled.Amber
Installing a Network Module in the Switch
Safety Warnings
This section includes the installation cautions and warnings. Translations of the safety warnings appear in the
Regulatory Compliance and Safety Information for the Catalyst 3850 Switches on Cisco.com:
http://www.cisco.com/go/cat3850_hw .
Read this section before you install a network module.
Proper ESD protection is required whenever you handle equipment. Installation and maintenance personnel
should be properly grounded by grounding straps to eliminate the risk of ESD damage to the equipment.
Equipment is subject to ESD damage whenever you remove it.
Caution
Only trained and qualified personnel should be allowed to install, replace, or service this equipment. Statement
1030
Warning
Do not reach into a vacant slot or chassis while you install or remove a module. Exposed circuitry could
constitute an energy hazard. Statement 206
Warning
Catalyst 3850 Switch Hardware Installation Guide
OL-26779-0558
Installing a Network Module
Installing a Network Module in the Switch