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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.

Installing SFP and SFP+ Modules

Before You Begin

You must have an installed network module to use SFP and SFP+ modules (except for the Catalyst
WS-C3850-12S and WS-C3850-24S). The downlink ports on the Catalyst WS-C3850-12S and WS-C3850-24S
switch models support standard SFP modules, and the downlink ports on the Catalyst WS-C3850-12XS and
WS-C3850-24XS switch models support standard SFP+ modules.

See the switch release notes on Cisco.com for the list of supported SFP and SFP+ modules. Use only supported
SFP modules on the switch. For the latest information about supported SFP and SFP+ modules, refer to the
Cisco Transceiver Modules Compatibility Information at

http://www.cisco.com/en/US/products/hw/modules/

ps5455/products_device_support_tables_list.html

For information about installing, removing, cabling, and troubleshooting SFP 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 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 module can shorten its useful life. Do not remove and insert any SFP
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 SFPs in multiple switch ports, wait for 5 seconds between inserting each SFP.
This will prevent the ports from going into error disabled mode. Similarly, when you remove an SFP
from a port, wait for 5 seconds before reinserting it.

   Catalyst 3850 Switch Hardware Installation Guide

14

OL-26779-05   

Installing a Network Module

Installing SFP and SFP+ Modules

Summary of Contents for C3850-NM-4-1G

Page 1: ...ription Network Module 1 This module has four 1 G SFP module slots Any combination of standard SFP modules are supported SFP modules are not supported If you insert an SFP module in the 1 G network module the SFP module does not operate and the switch logs an error message This is supported on the following switch models Note WS C3850 24T P U WS C3850 48T F P U WS C3850 12X48U WS C3850 24XU WS C38...

Page 2: ...itch models Note WS C3850 48T F P U WS C3850 12X48U WS C3850 24XU WS C3850 12XS WS C3850 24XS C3850 NM 4 10G This module has eight 10 G slots with an SFP port in each slot Each port supports a 1 G or 10 G connection This is supported on the following switch models Note WS C3850 12X48U WS C3850 24XU WS C3850 24XS C3850 NM 8 10G This module has two 40 G slots with a QSFP connector in each slot This ...

Page 3: ...etwork modules are hot swappable Figure 1 C3850 NM 4 1G Network Module LEDs 3 Captive screws 1 1 G Ethernet SFP slots 2 Figure 2 C3850 NM 2 10G Network Module 1 G Ethernet SFP slots 3 Captive screws 1 LEDs 4 1 G or 10 G Ethernet SFP slots 2 Catalyst 3850 Switch Hardware Installation Guide OL 26779 05 3 Installing a Network Module Network Module Overview ...

Page 4: ...k Module LEDs 3 Captive screw This network module has only one screw You must fasten the screw completely to secure the module and loosen the screw first so that the module may be removed Note 1 10 G or 1 G SFP slots 2 Catalyst 3850 Switch Hardware Installation Guide 4 OL 26779 05 Installing a Network Module Network Module Overview ...

Page 5: ...ork Module LEDs 3 Captive screws 1 40 G QSFP slots 2 Figure 6 Blank Network Module Captive screws 2 Blank module 1 Catalyst 3850 Switch Hardware Installation Guide OL 26779 05 5 Installing a Network Module Network Module Overview ...

Page 6: ...k 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 Catalyst 3850 Switch H...

Page 7: ...06 Warning Equipment That You Need Ratcheting torque screwdriver with a number 2 Phillips head that exerts up to 15 pound force inches lbf in of pressure Panduit crimping tool with optional controlled cycle mechanism model CT 720 CT 920 CT 920CH CT 930 or CT 940CH Wire stripping tools 12 gauge copper ground wire insulated or not for the single hole ground connection 8 gauge copper ground wire insu...

Page 8: ...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 ...

Page 9: ...e rightmost tab 2 You will feel some light resistance because a spring loaded tab inside the slot will push back against the C3850 NM 8 10G module 3 Continue to tighten the jackscrew while gently pushing the front panel of the network module into the slot Network Module Port Configurations C3850 NM 4 1G Module All ports in the C3850 NM 4 1G module are natively GigabitEthernet and are configured Gi...

Page 10: ...t1 1 1 through TenGigabitEthernet1 1 4 even when you are operating them as 1 G using SFPs Only four interfaces are valid the other four should not be used even though they still show up in the CLI Table 2 C3850 NM 4 10G Module Action Interface Disregard GigabitEthernet1 1 1 Disregard GigabitEthernet1 1 2 Disregard GigabitEthernet1 1 3 Disregard GigabitEthernet1 1 4 Configure this interface TenGiga...

Page 11: ...rd TenGigabitEthernet1 1 1 Disregard TenGigabitEthernet1 1 2 Configure this interface even when operating as 1 G TenGigabitEthernet1 1 3 Configure this interface even when operating as 1 G TenGigabitEthernet1 1 4 C3850 NM 8 10G Module All ports in the C3850 NM 8 10G module default to 10 G and should be configured as TenGigabitEthernet1 1 1 through TenGigabitEthernet1 1 8 even when you are operatin...

Page 12: ...FortyGigabitEthernet1 1 1 Configure this interface FortyGigabitEthernet1 1 2 Disregard TenGigabitEthernet1 1 1 Disregard TenGigabitEthernet1 1 2 Disregard TenGigabitEthernet1 1 3 Disregard TenGigabitEthernet1 1 4 Disregard TenGigabitEthernet1 1 5 Disregard TenGigabitEthernet1 1 6 Disregard TenGigabitEthernet1 1 7 Disregard TenGigabitEthernet1 1 8 If you use a 4x10G breakout cable the ports default...

Page 13: ...s between the online insertion and removal OIR of network modules Note Procedure Step 1 Attach an ESD preventive wrist strap to your wrist and to an earth ground surface Do not remove the network module with connected cables or installed SFP modules Always remove any cables and modules before you remove the network module Caution A module interface might become error disabled when a network module...

Page 14: ...ported SFP modules on the switch For the latest information about supported SFP and SFP modules refer to the Cisco Transceiver Modules Compatibility Information at http www cisco com en US products hw modules ps5455 products_device_support_tables_list html For information about installing removing cabling and troubleshooting SFP modules see the module documentation that shipped with your device Ob...

Page 15: ...ale clasp latch move it to the open unlocked position Step 4 Align the module in front of the slot opening and push until you feel the connector snap into place Figure 9 Installing an SFP Module in the Network Module Step 5 If the module has a bale clasp latch close it to lock the SFP module in place Step 6 Remove the SFP dust plugs and save Step 7 Connect the SFP cables Figure 10 Network Module w...

Page 16: ...e out and down to eject the module If you cannot use your finger to open the latch use a small flat blade screwdriver or other long narrow instrument to open it Step 5 Grasp the SFP SFP module and carefully remove it from the slot Step 6 Place the SFP SFP module in an antistatic bag or other protective environment Finding the Network Module Serial Number If you contact Cisco Technical Assistance r...

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