Cisco Catalyst 3850 Hardware Installation Manual
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- Hardware installation manual (146 pages) ,
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Table of Contents
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Switch Installation
For initial switch setup, assigning the switch IP address, and powering on information, see the switch getting
started guide on Cisco.com.
This chapter contains these topics:
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Preparing for Installation
Safety Warnings
This section includes the basic installation caution and warning statements. Read this section before you start
the installation procedure. Translations of the warning statements appear in the Catalyst 3850 switch RCSI
guide on Cisco.com.
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Preparing for Installation, page 1
Planning a Switch Data Stack, page 4
Planning a StackPower Stack, page 9
StackPower Cabling Configurations, page 10
Installing the Switch, page 12
Connecting to the StackWise Ports, page 16
Connecting to the StackPower Ports, page 18
Where to Go Next, page 21
Catalyst 3850 Switch Hardware Installation Guide
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Table of Contents
Related Manuals for Cisco Catalyst 3850
Summary of Contents for Cisco Catalyst 3850
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Page 1: Table Of Contents
Safety Warnings This section includes the basic installation caution and warning statements. Read this section before you start the installation procedure. Translations of the warning statements appear in the Catalyst 3850 switch RCSI guide on Cisco.com. Catalyst 3850 Switch Hardware Installation Guide... - Page 2 This unit might have more than one power supply connection. All connections must be removed to Warning de-energize the unit. Statement 1028 Only trained and qualified personnel should be allowed to install, replace, or service this equipment. Warning Statement 1030 Catalyst 3850 Switch Hardware Installation Guide OL-26779-05...
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Page 3: Installation Guidelines
• Airflow around the switch and through the vents is unrestricted. • For copper connections on Ethernet ports, cable lengths from the switch to connected devices can be up to 328 feet (100 meters). Catalyst 3850 Switch Hardware Installation Guide OL-26779-05... -
Page 4: Planning A Switch Data Stack
After a successful POST, disconnect the power cord from the switch. Install the switch in a rack, on a table, or on a shelf as described in Installing the Switch, on page Planning a Switch Data Stack Catalyst 3850 switches can share bandwidth by using data stacking. Catalyst 3850 Switch Hardware Installation Guide OL-26779-05... -
Page 5: Switch Stacking And Power Stacking Guidelines
• Length of cable. Depending on the configurations that you have, you might need different-sized cables. If you do not specify the length of the StackWise cable, the 0.5-meter cable is supplied. If you need the 1-meter cable or the 3-meter cable, you can order it from your Cisco supplier. For cable part numbers, StackWise Ports. -
Page 6: Data Stack Cabling Configurations
The configuration example uses the supplied 0.5-meter StackWise cable. The example shows the full-ring configuration that provides redundant connections. Figure 1: Data Stacking the Catalyst 3850 Switches in a Rack or on a Table Using the 0.5-meter StackWise Cables Catalyst 3850 Switch Hardware Installation Guide... -
Page 7: Data Stack Bandwidth And Partitioning Examples
Figure 4: Example of a Data Stack with Half Bandwidth Connections The figures below show data stacks of Catalyst 3850 switches with failover conditions. In this figure, the StackWise cable is bad in link 2. Therefore, this stack provides only half bandwidth and does not have redundant connections. - Page 8 ◦ More than one stack cable is removed without powering down. • A stack split can occur in a partial ring stack if: ◦ A switch is removed without powering down. ◦ A stack cable is removed without powering down. Catalyst 3850 Switch Hardware Installation Guide OL-26779-05...
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Page 9: Planning A Stackpower Stack
• Length of cable. Depending on the configurations that you have, you might need different-sized cables. If you do not specify the length of the StackPower cable, the 0.3 meter cable is supplied. If you need the 1.5 meter cable, you can order it from your Cisco supplier. For cable part numbers, see StackPower Connector. -
Page 10: Stackpower Cabling Configurations
This section describes the recommended cabling configurations for a StackPower stack. There are two types of StackPower cables. The cable in the figure connects a Catalyst 3850 switch to another Catalyst 3850 switch in a power stack or with an XPS. StackPower cables have color bands on the cable ends: •... - Page 11 1.5-meter cable. In the examples that follow, the switches are stacked in a vertical rack or on a table. Figure 8: StackPower Ring Topology This figure shows nine switches connected in a star topology. Figure 9: StackPower Star Topology Catalyst 3850 Switch Hardware Installation Guide OL-26779-05...
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Page 12: Installing The Switch
StackPower Partitioning Examples StackPower Partitioning Examples These figures show StackPower stacks of Catalyst 3850 switches with failover conditions. In this figure, the StackPower cable 2 is faulty. Therefore, this stack does not provide redundancy. Figure 10: Example of a StackPower Stack with a Failover Condition In this figure, StackPower port B on the center switch has failed and this stack partitions into two stacks. - Page 13 Statement 1006 This figure shows the standard 19-inch brackets and other optional mounting brackets. You can order the optional brackets from your Cisco sales representative. Figure 12: Rack-Mounting Brackets 19-inch brackets (C3850-RACK-KIT=) 23-inch brackets (C3850-RACK-KIT=)
- Page 14 Use four Phillips flat-head screws to attach the long side of the bracket to each side of the switch for the front- or rear-mounting positions. Figure 13: Attaching Brackets for 19-inch Racks Rear-mounting position Front-mounting position Number-8 Phillips flat-head screws Catalyst 3850 Switch Hardware Installation Guide OL-26779-05...
- Page 15 Step 2 Use the black Phillips machine screw to attach the cable guide to the left or right bracket. Phillips machine screw, black Front-mounting position Cable guide Number-12 or number-10 Phillips machine screws Catalyst 3850 Switch Hardware Installation Guide OL-26779-05...
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Page 16: Connecting To The Stackwise Ports
Connecting to the StackWise Ports Before You Begin Before connecting the StackWise cables, review the Planning a Switch Data Stack, on page 4. Always use a Cisco-approved StackWise cable to connect the switches. Catalyst 3850 Switch Hardware Installation Guide OL-26779-05... - Page 17 Connect the cable to the StackWise port on the switch rear panel. Align the connector and connect the StackWise cable to the StackWise port on the switch rear panel and finger-tighten the screws (clockwise direction). Make sure the Cisco logo is on the top side of the connector as shown in the figure. Step 3 Connect the other end of the cable to the port on the other switch and finger-tighten the screws.
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Page 18: Connecting To The Stackpower Ports
Connect the end of the cable with a green band to either StackPower port on the first switch. Align the connector correctly, and insert it into a StackPower port on the switch rear panel. Step 3 Connect the end of the cable with the yellow band to another Catalyst 3850 switch (to configure StackPower power sharing). Step 4 Hand-tighten the captive screws to secure the StackPower cable connectors in place. -
Page 19: Installing And Removing Sfp, Sfp+ And Qsfp+ Modules
See this field notice for more information: http://www.cisco.com/c/en/us/support/ docs/field-notices/636/fn63697.html This issue does not occur if you are using Cisco IOS XE Release 3E or later releases. Auto-MDIX Connections The autonegotiation and the auto-MDIX features are enabled by default on the switch. - Page 20 PoE inline power supports devices compliant with the IEEE 802.3af standard, as well as prestandard Cisco IP Phones and Cisco Aironet Access Points. Each port can deliver up to 15.4 W of PoE. PoE+ inline power supports devices compliant with the IEEE 802.3at standard, by delivering up to 30 W of PoE+ power per port to all switch ports.
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Page 21: Where To Go Next
Noncompliant cabling or powered devices can cause a PoE port fault. Use only standard-compliant cabling Caution to connect Cisco prestandard IP Phones and wireless access points, IEEE 802.3af, or 802.3at (PoE+)-compliant devices. You must remove any cable or device that causes a PoE fault. - Page 22 Switch Installation Where to Go Next Catalyst 3850 Switch Hardware Installation Guide OL-26779-05...