This guide describes the hardware features of the Catalyst 3650 switches. It describes the physical and
performance characteristics of each switch, explains how to install a switch, and provides
troubleshooting information.
This guide does not describe system messages that you might receive or how to configure your switch.
See the switch software configuration guide, the switch command reference, and the switch system
message guide on
http://www.cisco.com/go/cat3650_docs
Document Conventions
This document uses the following conventions.
NoteMeans reader take note. Notes contain helpful suggestions or references to materials not contained in
this manual.
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CautionMeans reader be careful. In this situation, you might do something that could result in equipment
damage or loss of data.
Catalyst 3650 Switch Hardware Installation Guide
v
Preface
Warning
IMPORTANT SAFETY INSTRUCTIONS
This warning symbol means danger. You are in a situation that could cause bodily injury. Before you
work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar
with standard practices for preventing accidents. Use the statement number provided at the end of
each warning to locate its translation in the translated safety warnings that accompanied this
device.
SAVE THESE INSTRUCTIONS
The safety warnings for this product are translated into several languages in the Regulatory Compliance
and Safety Information for the Catalyst 3650 Switch that is available on Cisco.com. The EMC regulatory
statements are also included in that guide.
Statement 1071
Related Documentation
NoteBefore installing or upgrading the switch, refer to the switch release notes.
• Catalyst 3650 switch documentation at:
http://www.cisco.com/go/cat3650_docs
• Cisco SFP and SFP+ modules documentation, including compatibility matrixes at:
http://www.cisco.com/en/US/products/hw/modules/ps5455/tsd_products_support_series_home.ht
ml
Obtaining Documentation and Submitting a Service Request
For information on obtaining documentation, submitting a service request, and gathering additional
information, see the monthly What’s New in Cisco Product Documentation, which also lists all new and
revised Cisco technical documentation, at:
Subscribe to the What’s New in Cisco Product Documentation as a Really Simple Syndication (RSS) feed
and set content to be delivered directly to your desktop using a reader application. The RSS feeds are a free
service and Cisco currently supports RSS Version 2.0.
vi
Catalyst 3650 Switch Hardware Installation Guide
OL-29734-01
Product Overview
The Catalyst 3650 series switches are Ethernet switches to which you can connect devices such as
Cisco IP Phones, Cisco Wireless Access Points, workstations, and other network devices such as servers,
routers, and other switches.
The Catalyst 3650 switches support stacking through Cisco StackWise-160 technology.
Unless otherwise noted, the term switch refers to a standalone switch and to a switch stack.
ports, 4 10-Gigabit SFP+ uplink ports, 250-W
power supply
1. PoE+ = Power over Ethernet plus (provides up to 30 W per port).
Front Panel
This section describes the front panel components:
• 24 or 48 downlink ports of one of these types:
–
10/100/1000
–
10/100/1000 PoE+
• 4 uplink ports of one of these types or combinations of:
–
SFP module slots
–
SFP+ module slots
• USB Type A connector
• USB mini-Type B (console) port
• LEDs
• Mode button
All of the switches have similar components. See Figure 1-1 and Figure 1-2 for examples.
1-4
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Chapter 1 Product Overview
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NoteThe illustrations of the Catalyst 3650 switch are not intended to depict any particular color
Figure 1-1Catalyst 3650-48PD-L Switch Front Panel
Front Panel
scheme. They are provided as a reference for various features and markings described within this
guide.
Figure 1-2Catalyst 3650-24PS-L Switch Front Panel
1Mode button4USB Type A storage port
2Status LEDs510/100/1000 PoE+ Ethernet ports
3USB mini-Type B (console) port6Uplink ports
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3USB mini-Type B (console) port6Uplink ports
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Catalyst 3650 Switch Hardware Installation Guide
1-5
Front Panel
10/100/1000 Ethernet Ports
The 10/100/1000 Ethernet ports use RJ-45 connectors with Ethernet pinouts. The maximum cable length
is 328 feet (100 meters). The 100BASE-TX and 1000BASE-T traffic requires Category 5, Category 5e,
or Category 6 unshielded twisted pair (UTP) cable. The 10BASE-T traffic can use Category 3 or
Category 4 UTP cable.
For information about the 10/100/1000 Ethernet port connections and specifications, see the
“10/100/1000 Ethernet Port Connections” section on page 2-19 and Appendix B, “Connector and Cable
Specifications.”
PoE and PoE+
The PoE+ ports use the same connectors as described in the “10/100/1000 Ethernet Ports” section on
page 1-6.
These PoE+ ports provide:
• Support for IEEE 802.3af-compliant powered devices (up to 15.4 W PoE per port) and support for
IEEE 802.3at-compliant powered devices (up to 30 W PoE+ per port).
Chapter 1 Product Overview
• Support for Cisco-enhanced PoE.
• Support for prestandard Cisco powered devices.
• Configurable support for Cisco intelligent power management, including enhanced power
negotiation, power reservation, and per-port power policing.
See Table 1-12 on page 1-18 for the power supply matrix that defines the available PoE and PoE+ power
per port.
NoteFor information on 250-W AC power supply support on the PoE-capable switch models, refer to the
Release Notes for the Cisco Catalyst 3650 Switch on Cisco.com.
NoteThe output of the PoE+ circuit has been evaluated as a Limited Power Source (LPS) per IEC 60950-1.
For information about power supply modules, PoE+ port connections, and PoE+ specifications, see the
“Power Supply Modules” section on page 1-17, the “PoE+ Port Connections” section on page 2-21, and
Appendix B, “Connector and Cable Specifications.”
Management Ports
• Ethernet management port (see the “Ethernet Management Port” section on page 1-20)
• RJ-45 console port (EIA/TIA-232) (see the “RJ-45 Console Port” section on page 1-20)
1-6
• USB mini-Type B console port (5-pin connector)
You can connect the switch to a host such as a Windows workstation or a terminal server through the
Ethernet management port, the RJ-45 console port, or the USB console port (USB mini-Type B port).
The USB console port connection uses a USB Type A to 5-pin mini-Type B cable. The USB console
interface speeds are the same as the RJ-45 console interface speeds.
Catalyst 3650 Switch Hardware Installation Guide
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Chapter 1 Product Overview
USB Mini-Type B Port
The switch provides a USB mini-Type B console connection on the front panel, and the RJ-45 console
port on the switch rear panel. Console output is always active on both connectors, but console input is
active on only one connector at a time, with the USB connector taking precedence over the RJ-45
connector.
Use a USB type-A-to-USB 5-pin mini-Type B cable to connect a PC or other device to the switch. The
required USB cable is included in the optional accessory kit.
The connected device must include a terminal emulation application.
Windows PCs need a driver for the USB port. See the “Installing the Cisco Microsoft Windows USB
Device Driver” section on page C-3 for installation instructions.
When the switch detects a valid USB connection to a powered device, input from the RJ-45 console port
is immediately disabled, and input from the USB console is enabled. Removing the USB connection
immediately reenables input from the RJ-45 console connection. An LED on the switch front panel (see
Figure 1-4) is green when the USB console connection is enabled.
The switch provides a configurable inactivity timeout that reactivates the RJ-45 console if no input
activity has occurred on the USB console for a specified time period. After the USB console has been
deactivated due to a timeout, you can restore its operation by disconnecting and reconnecting the USB
cable. You can disable USB console operation by using Cisco IOS commands. See the switch software
configuration guide for details.
Front Panel
NoteThe 4-pin mini-Type B connectors resemble 5-pin mini-Type B connectors. They are not compatible.
Use only the 5-pin mini-Type B. See Figure 1-3.
Figure 1-3USB Mini-Type B Port
You can use the command-line interface (CLI) to configure an inactivity timeout which reactivates the
RJ-45 console if the USB console has been activated and no input activity has occurred on the USB
console for a specified time period.
After the USB console deactivates due to inactivity, you cannot use the CLI to reactivate it. Disconnect
and reconnect the USB cable to reactivate the USB console. For information on using the CLI to
configure the USB console interface, see the switch software guide.
USB Type A Port
The USB Type A interface provides access to external USB flash devices (also known as thumb drives
or USB keys).
The interface supports Cisco USB flash drives with capacities from 64 MB to 1 GB.
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Cisco IOS software provides standard file system access to the flash device: read, write, erase, and copy,
as well as the ability to format the flash device with a FAT file system.
For more information about the switch management ports, see the switch software configuration guide
and the command reference on Cisco.com and the “Connector Specifications” section on page B-1.
Catalyst 3650 Switch Hardware Installation Guide
1-7
Front Panel
Uplink Ports
The switch supports four SFP module slots that provide uplink ports to connect to other devices.
Depending upon the switch model, the uplink port support for SFP and SFP+ modules is:
• Four slots supporting only 1-Gigabit SFP modules.
• Two slots (left side) supporting only 1-Gigabit SFP modules and two slots (right side) supporting
either 10-Gigabit SFP+ modules or 1-Gigabit SFP modules.
• Four slots supporting either 1-Gigabit SFP modules or 10-Gigabit SFP+ modules.
For more information, see “Catalyst 3650 Switch Models” in Table 1-1 on page 1-1. For cable
specifications, see Appendix B, “Connector and Cable Specifications.”
NoteIf you insert an SFP+ module in an SFP module slot, the SFP+ module slot does not operate, and the
switch logs an error message. SFP modules can operate in SFP+ module slots.
SFP and SFP+ Modules
Chapter 1 Product Overview
LEDs
The SFP and SFP+ modules provide copper or fiber-optic connections to other devices. These
transceiver modules are field replaceable, and provide the uplink interfaces when installed in an SFP
module slot. The SFP modules have LC connectors for fiber-optic connections or RJ-45 connectors for
copper connections.
Use only Cisco SFP and SFP+ modules on the switch. For the latest information about supported
SFP/SFP+ modules, refer to the Cisco Transceiver Modules Compatibility Matrix documentation at:
For information about SFP modules, see your SFP module documentation and the “Installing SFP and
SFP+ Modules” section on page 2-17. For cable specifications, see Appendix B, “Connector and Cable
Specifications.”
You can use the switch LEDs to monitor switch activity and its performance. Figure 1-4 shows the switch
LEDs and the Mode button that you use to select a port mode.
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Chapter 1 Product Overview
Figure 1-4Switch Front Panel LEDs
01X
Front Panel
1
2
3
4
5
6
SYST LED
7
8
1STAT (status)5
2DUPLX (duplex)6
1
PoE
CONSOLE (USB mini-Type B (console) port
347616
3SPEED 7SYST (system)
4STACK 8ACTV (active)
1. Only switches with PoE+ ports.
The illustrations of the Catalyst 3650 switch are not intended to depict any particular color scheme.
They are provided as a reference for various features and markings described within this
guide.
Table 1-2SYST LED
ColorSystem Status
OffSystem is not powered on.
GreenSystem is operating normally.
Blinking greenSwitch is running POST.
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1-9
Front Panel
Table 1-2SYST LED (continued)
ColorSystem Status
Blinking amberThere is a fault with one of the following:
AmberSystem is receiving power but is not functioning properly.
For information on the SYST LED colors during POST, see the “Diagnosing Problems” section on
page 5-1.
Port LEDs and Modes
Each Ethernet port, 1-Gigabit Ethernet module slot, and 10-Gigabit Ethernet module slot has a port LED.
These port LEDs, as a group or individually, display information about the switch and about the
individual ports. The port mode determines the type of information shown by the port LEDs. Tabl e 1 - 3
lists the mode LEDs and their associated port modes and meanings.
To select or change a mode, press the Mode button until the desired mode is highlighted. When you
change port modes, the meanings of the port LED colors also change. Ta b le 1-4 explains how to interpret
the port LED colors in different port modes.
When you press the Mode button on any switch in the switch stack, all the stack switches change to show
the same selected mode. For example, if you press the Mode button on the active switch to show the
SPEED LED, all the other switches in the stack also show the SPEED LED.
Chapter 1 Product Overview
• Power supply
• Fan module
Table 1-3Port Mode LEDs
Mode LED Port ModeDescription
STATPort statusThe port status. This is the default mode.
SPEEDPort speedThe port operating speed: 10, 100 Mb/s, 1 or 10 Gb/s
DUPLX Port duplex modeThe port duplex mode: full duplex or half duplex.
ACTVActiveThe active switch status.
1
PoE
1. Only switches with PoE+ ports.
PoE+ port powerThe PoE+ port status.
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Chapter 1 Product Overview
Table 1-4Meaning of Switch LED Colors in Different Modes
Port ModePort LED ColorMeaning
STAT
(port status)
SPEED
DUPLX
(duplex)
ACTV
(data active
switch)
STACK
(stack member)
Front Panel
OffNo link, or port was administratively shut down.
GreenLink present, no activity.
Blinking green Activity. Port is sending or receiving data.
Alternating
green-amber
Link fault. Error frames can affect connectivity, and errors such as
excessive collisions, CRC errors, and alignment and jabber errors
are monitored for a link-fault indication.
AmberPort is blocked by Spanning Tree Protocol (STP) and is not
forwarding data.
After a port is reconfigured, the port LED can be amber for up to 30
seconds as STP checks the switch for possible loops.
10/100/1000/SFP ports
OffPort is operating at 10 Mb/s.
GreenPort is operating at 100 Mb/s.
Single green
Port is operating at 1000 Mb/s.
flash (on for
100 ms, off for
1900 ms)
SFP+ ports
OffPort is not operating.
Blinking green Port is operating at up to 10 Gb/s.
OffPort is operating in half duplex.
GreenPort is operating in full duplex.
OffThe switch is not the active switch.
NoteFor a standalone switch, this LED is off.
GreenThe switch is the active switch.
AmberError during active switch election.
Blinking green Switch is a standby member of a data stack and assumes active
responsibilities if the current active switch fails.
OffNo stack member corresponding to that member number.
Blinking green Stack member number.
GreenMember numbers of other stack member switches.
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Front Panel
Chapter 1 Product Overview
Table 1-4Meaning of Switch LED Colors in Different Modes (continued)
Port ModePort LED ColorMeaning
1
PoE+
OffPoE+ is off.
If the powered device is receiving power from an AC power source,
the port LED is off even if the device is connected to the switch port.
GreenPoE+ is on. The port LED is green when the switch port is providing
power.
Alternating
green and
PoE+ is denied because providing power to the powered device will
exceed the switch power capacity.
amber
Blinking amber PoE+ is off due to a fault or because it has exceeded a limit set in
the switch software.
CautionPoE+ faults occur when noncompliant cabling or
powered devices are connected to a PoE+ port. Use only
standard-compliant cabling to connect Cisco prestandard
IP Phones and wireless access points or
IEEE 802.3af-compliant devices to PoE+ ports. You must
remove from the network any cable or device that causes
a PoE+ fault.
USB Console LED
ACTV LED
AmberPoE+ for the port has been disabled.
NotePoE+ is enabled by default.
1. Only switches with PoE or PoE+ ports.
The USB console LED (Figure 1-4) shows whether there is an active USB connection to the port.
Table 1-5USB Console Port LED
ColorDescription
OffUSB console is disabled.
GreenUSB console is enabled.
Ta b le 1 - 6A C T V LE D
ColorDescription
OffSwitch is not the active switch.
GreenSwitch is the active switch or a standalone switch.
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Table 1-6ACTV LED (continued)
ColorDescription
AmberAn error occurred when the switch was selecting the active
switch, or another type of stack error occurred.
Slow blinking greenSwitch is in stack standby mode.
The STACK LED shows the sequence of member switches in a stack. Up to nine switches can be
members of a stack. The first nine port LEDs show the member number of a switch in a stack. Figure 1-5
shows the LEDs on the first switch, which is stack member number 1. For example, if you press the Mode
button and select Stack, the LED for port 1 blinks green. The LEDs for ports 2 and 3 are solid green, as
these represent the member numbers of other switches in the stack. The other port LEDs are off because
there are no more members in the stack.
Figure 1-5STACK LED
1Stack member 14LED blinks green to show that this is switch 1 in the stack.
2Stack member 25LED is solid green to show that switch 2 is a stack member.
3Stack member 36LED is solid green to show that switch 3 is a stack member.
When you select the STACK LED mode, the representative STACK LEDs are green when the StackWise
ports are up, and the representative STACK LEDs are amber when the ports are down.
PoE+ LED
If the PoE mode is not selected on a switch with PoE+ ports, the PoE+ LED still shows detected PoE+
problems.
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Front Panel
Uplink Ports LEDs
Chapter 1 Product Overview
Table 1-7PoE+ Mode LED
ColorPoE+ Status
OffPoE mode is not selected. None of the 10/100/1000 ports have been denied power
or are in a fault condition.
GreenPoE mode is selected, and the port LEDs show the PoE+ status.
Blinking amberPoE mode is not selected. At least one of the 10/100/1000 ports has been denied
power, or at least one of the 10/100/1000 ports has a PoE+ fault.
The four uplink ports have four status LEDs. Each port LED is labeled according to its SFP and SFP+
module status.
For SFP ports, a G(x) labeling nomenclature is used, where G = 1 Gigabit and x = the port number. The
The G(x) label appears to the left of the uplink port LED.
For SFP+ ports, a TE(x) labeling nomenclature is used, where TE = 10 Gigabit and x = the port number.
The TE(x) label appears to the right of the uplink port LED.
An SFP+ module ports has two labels, G(x) and TE(x), because it supports both SFP and SFP+ modules.
The uplink port labeling layouts for the various switch models are:
• Four uplink port LEDs labeled G1, G2, G3, G4—This labeling represents four ports supporting SFP
modules.
• Four uplink port LEDs labeled G1, G2, G3, G4 and two right side uplink ports LEDs also labeled
TE3 and TE4—This labeling represents two ports (left side) supporting SFP modules and two ports
(right side) supporting SFP and SFP+ modules.
• Four uplink port LEDs labeled G1, G2, G3, G4 and TE1, TE2, TE3, TE4—This labeling represents
four slots supporting SFP and SFP+ modules.
Figure 1-6 shows an example of an uplink ports LED arrangement representing two SFP and two SFP+
ports (Catalyst 3650-48FD-S switch model).
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Chapter 1 Product Overview
Figure 1-6Uplink Ports LEDs
Catalyst 3650 48PoE+ 2X10G
G1
G2
Rear Panel
347665
G3
TE3
G4
TE4
1
2
3
4
1G1 LED3G3, TE3 LED
2G2 LED4G4, TE4 LED
Table 1-8Uplink Ports LEDs
ColorUplink Ports Link Status
OffLink is off.
GreenLink is on, no activity.
Blinking greenActivity on a link, no faults.
Blinking amberLink is off due to a fault or because it has exceeded a limit set in the
switch software.
CautionLink faults occur when noncompliant cabling is connected
to an SFP or SFP+ port. Use only standard-compliant
cabling to connect to Cisco SFP and SFP+ ports. You must
remove from the ports any cable or device that causes a
link fault.
Rear Panel
OL-29734-01
AmberLink for the SFP or SFP+ has been disabled.
The switch rear panel includes StackWise connectors, ports, fan modules, and power supply modules.
See Figure 1-7.
Catalyst 3650 Switch Hardware Installation Guide
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Rear Panel
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Chapter 1 Product Overview
Figure 1-7Catalyst 3650 Switch Rear Panel
1Ground connector5StackWise port connector
2CONSOLE (RJ-45 console port)6AC OK (input) status LED
3MGMT (RJ-45 10/100/1000 management
port)
4Fan module8Power supply modules (AC power supply
RJ-45 Console Port LED
Table 1-9RJ-45 Console Port LED
ColorRJ-45 Console Port Status
OffRJ-45 console is disabled. USB console is active.
GreenRJ-45 console is enabled. USB console is disabled.
1. The USB console has priority over the RJ-45 console.
StackWise Ports
StackWise ports are used to connect switches in StackWise stacking configurations. StackWise cables
are used to connect the StackWise ports for stacking. For more information on StackWise cables, see the
“StackWise Cables” section on page B-5.
A StackWise adapter must be installed in the StackWise port to enable stacking. StackWise adapter
blanks installed in the StackWise ports is the default setup. For more information on StackWise adapters
and StackWise adapter blanks, see the “StackWise Adapters” section on page B-6 and the “StackWise
Adapter Blanks” section on page B-7.
7PS OK (output) status LED
modules shown)
1
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Chapter 1 Product Overview
For Catalyst 3650 switches where stacking is specified, StackWise adapters are preinstalled in the
StackWise ports, and optional StackWise cables can be ordered. When stacking is not specified, but is
required, the StackWise adapter blanks must be removed and StackWise adapters installed. For more
information on connecting switches for stacking see “Connecting to the StackWise Ports” section on
page 2-15.
CautionUse only approved cables, and connect only to similar Cisco equipment. Equipment might be damaged
if connected to nonapproved Cisco cables or equipment.
NoteYou cannot have a switch stack containing a mix of Catalyst 3650 and Catalyst 3850 switches.
Power Supply Modules
The 24- and 48-port switches are powered through one or two internal power supply modules.
Supported power supply modules:
• PWR-C2-250WAC=
• PWR-C2-640WAC=
Rear Panel
• PWR-C2-1025WAC=
• PWR-C2-640WDC=
The switch has two internal power supply module slots. You can use two AC modules, two DC modules,
a mixed configuration of one AC and one DC power supply module, or one power supply module and a
blank cover. The switch can operate with either one or two active power supply modules.
Table 1-1 shows the default power supply modules that ship with each switch model. All power supply
modules (except the blank covers) have internal fans. All switches ship with a blank cover in the second
power supply slot if switches are configured with only one power supply.
CautionDo not operate the switch with one power supply module slot empty. For proper chassis cooling, both
power supply module slots must be populated, or with either a power supply or a blank cover.
The 250-W and 640-W AC power supply modules are autoranging units that support input voltages
between 100 and 240 VAC. The 1025-W power supply module is an autoranging unit that supports input
voltages between 115 and 240 VAC. The 640-W DC power supply module supports input voltages
between -40 and -60 VDC.
NoteFor information on 250-W AC power supply support on the PoE-capable switch models, refer to the
Release Notes for the Cisco Catalyst 3650 Switch on Cisco.com.
Each AC power supply module has a power cord for connection to an AC power outlet. The 1025-W and
640-W modules use a 16-AWG cord (only North America). All other modules use an 18-AWG cord. The
DC-power supply module must be wired to a DC-power source.
OL-29734-01
Table 1-1 0 , Ta b le 1-11 , and Ta bl e 1- 12 show the PoE available and PoE requirements for Catalyst 3650
switches.
Catalyst 3650 Switch Hardware Installation Guide
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Rear Panel
Chapter 1 Product Overview
Table 1-10Available PoE with AC Power Supply
ModelsDefault Power SupplyAvailable PoE Power
24-port data switchPWR-C2-250WAC=—
48-port data switch
24-port PoE switchPWR-C2-640WAC390 W
48-port PoE switch
48-port full PoE switch PWR-C2-1025WAC775 W
Table 1-11Available PoE with DC Power Supply
1
ModelsNumber of Power Supplies Available PoE Power
24-port PoE switch1390 W
2780 W
48-port PoE switch1390 W
2780 W
1. The 640-W DC (PWR-C2-640WDC) power supply is the only DC module.
Table 1-12Switch Power Supply Requirements for PoE and PoE+
PoE Option24-Port Switch48-Port Switch
PoE (up to 15.4 per
port)
PoE+ (up to 30 W per
ports
1. A 48-port switch with one 640-W power supply provides up to 390 W of PoE to all ports.
(1) 640-WPower supply combinations:
• (1) 1025-W
• (1) 640-W + (1) 640-W
Power supply combinations:
• (1) 1025-W
• (1) 640-W + (1) 640-W
Power supply combinations:
• (2) 1025-W
1
1-18
The power supply modules have two status LEDs.
Table 1-13Switch Power Supply Module LEDs
AC-Power Supply Module LEDs
AC OKDescriptionPS OKDescription
OffNo AC input power.OffOutput is disabled, or input is
outside operating range (AC LED
is off).
GreenAC input power present.GreenPower output to switch active.
RedOutput has failed.
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Chapter 1 Product Overview
A
CT
V
Fan Modules
Rear Panel
Table 1-13Switch Power Supply Module LEDs (continued)
DC-Power Supply Module LEDs
DC OKDescriptionPS OKDescription
OffNo DC input power.OffOutput is disabled, or input is
outside operating range (DC LED
is off).
GreenDC input power present.GreenPower output to switch active.
RedOutput has failed.
For information about replacing a power supply module, wiring a DC power supply module, and module
specifications, see Chapter 3, “Power Supply Installation,” and Appendix A, “Technical Specifications.”
The switch has three internal hot-swappable 12-V fan modules. The air circulation system consists of
the fan modules and the power supply modules. The airflow patterns vary depending on the power supply
configuration.
Figure 1-8 shows the airflow patterns for the 24- and 48-port switches. The blue arrow shows cool air
flow, and the red arrow shows warm air flow. When the fan modules are operating properly, a green LED
is on at the top left corner of the fan assembly (viewed from the rear). If the fan fails, the LED turns to
amber. The switch can operate with two operational fans, but the failed fan should be replaced as soon
as possible to avoid a service interruption due to a second fan fault.
NoteThree fans are required for proper cooling.
Table 1-14 Switch Fan Module
Fan ModuleDescription
FAN-T1=Fan module
Figure 1-824- and 48-Port Switch Airflow Patterns
01
X
12
X
13
X
24
X
25
X
For information about installing a fan module and fan specifications, see Chapter 4, “Installing the Fan,”
and Appendix A, “Technical Specifications.”
347812
C
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t
alyst
3650
48P
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1
36X
37X
48X
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Management Options
Management Ports
Ethernet Management Port
You can connect the switch to a host such as a Windows workstation or a terminal server through the
10/100/1000 Ethernet management port or one of the console ports (see Figure 1-7). The 10/100/1000
Ethernet management port is a VPN routing/forwarding (VRF) interface and uses a RJ-45 crossover or
straight-through cable.
Table 1-1 5 shows the Ethernet management port LED colors and their meanings.
Table 1-15Ethernet Management Port LED
ColorDescription
GreenLink up but no activity.
Blinking greenLink up and activity.
OffLink down.
Chapter 1 Product Overview
RJ-45 Console Port
The RJ-45 console port connection uses the supplied RJ-45-to-DB-9 female cable.
Table 1-1 6 shows the RJ-45 console port LED colors and their meanings.
Table 1-16RJ-45 Console LEDs
ColorDescription
GreenRJ-45 console port is active.
OffThe port is not active.
Management Options
• Configuration Wizard
The Configuration Wizard is a Web-based controller user interface (UI) that lets you complete the
initial wireless configuration after you configure the IP address, local username, and password or
authorization using the authentication server. Using the Web UI, you can configure the controller,
WLAN, and radios for all initial operations, establish management parameters, set security policies,
access software management commands, configure system logs, and other tasks.
For more information on using the Configuration Wizard, see the switch software configuration
guide on Cisco.com.
• Cisco Network Assistant
Cisco Network Assistant is a PC-based network management GUI application for LANs. You can
use the GUI to configure and manage switch clusters or standalone switches. Cisco Network
Assistant is available at no cost and can be downloaded from this URL:
For information on starting the Network Assistant application, see the Getting Started with Cisco
Network Assistant guide on Cisco.com.
You can use Device Manager, which is in the switch memory, to manage individual and standalone
switches. This web interface offers quick configuration and monitoring. You can access Device
Manager from anywhere in your network through a web browser. For more information, see the
getting started guide and the Device Manager online help.
You can configure and monitor the switch and switch cluster members from the CLI. You can access
the CLI by connecting your management station directly to the switch console port or by using
Telnet from a remote management station. See the switch command reference on Cisco.com for
more information.
Cisco Prime Infrastructure combines the wireless functionality of Cisco Prime Network Control
System (NCS) and the wired functionality of Cisco Prime LAN Management Solution (LMS), with
application performance monitoring and troubleshooting capabilities of Cisco Prime Assurance
Manager. For more information, see the Cisco Prime Infrastructure documentation on Cisco.com.
See the switch software configuration guide on Cisco.com for network configuration concepts and
examples of using the switch to create dedicated network segments and interconnecting the segments
through Gigabit Ethernet connections.
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Management Options
Chapter 1 Product Overview
1-22
Catalyst 3650 Switch Hardware Installation Guide
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CHA P T E R
2
Switch Installation
This chapter describes how to install and connect a Catalyst 3650 switch. It also includes planning and
cabling considerations for stacking switches. Read the topics and perform the procedures in this order:
• Preparing for Installation, page 2-1
• Planning a Switch Data Stack, page 2-4
• Installing the Switch, page 2-9
• Connecting to the StackWise Ports, page 2-15
• Connecting Devices to the Ethernet Ports, page 2-19
• Where to Go Next, page 2-22
For initial switch setup, how to assign the switch IP address, and for powering information, see the
switch getting started guide on Cisco.com.
Preparing for Installation
• Safety Warnings, page 2-1
• Installation Guidelines, page 2-3
• Tools and Equipment, page 2-4
Safety Warnings
This section includes the basic installation caution and warning statements. Translations of the warning
statements appear in the Regulatory Compliance and Safety Information for the Catalyst 3650 Switch
document available at Cisco.com. Read this section before you start the installation procedure.
Warning
Warning
Before working on equipment that is connected to power lines, remove jewelry (including rings,
necklaces, and watches). Metal objects will heat up when connected to power and ground and can
cause serious burns or weld the metal object to the terminals.
Do not stack the chassis on any other equipment. If the chassis falls, it can cause severe bodily injury
and equipment damage.
Statement 48
Statement 43
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Preparing for Installation
Chapter 2 Switch Installation
Warning
Warning
Warning
Warning
Warning
Warning
Ethernet cables must be shielded when used in a central office environment.
Statement 171
Voice over IP (VoIP) service and the emergency calling service do not function if power fails or is
disrupted. After power is restored, you might have to reset or reconfigure equipment to regain access
to VoIP and the emergency calling service. In the USA, this emergency number is 911. You need to be
aware of the emergency number in your country.
Statement 361
Do not work on the system or connect or disconnect cables during periods of lightning activity.
Statement 1001
Read the installation instructions before connecting the system to the power source.
Statement 1004
This unit is intended for installation in restricted access areas. A restricted access area can be
accessed only through the use of a special tool, lock and key, or other means of security.
Statement 1017
The plug-socket combination must be accessible at all times, because it serves as the main
disconnecting device.
Statement 1019
Warning
Warning
Warning
Warning
Warning
Use copper conductors only.
Statement 1025
This unit might have more than one power supply connection. All connections must be removed to
de-energize the unit.
Statement 1028
Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
Statement 1030
Ultimate disposal of this product should be handled according to all national laws and regulations.
Statement 1040
For connections outside the building where the equipment is installed, the following ports must be
connected through an approved network termination unit with integral circuit protection: 10/100/1000
Ethernet.
Statement 1044
2-2
Catalyst 3650 Switch Hardware Installation Guide
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Chapter 2 Switch Installation
Preparing for Installation
Warning
Warning
Warning
Warning
NoteThe grounding architecture of this product is DC-isolated (DC-I).
To prevent the system from overheating, do not operate it in an area that exceeds the maximum
recommended ambient temperature of:
113°F (45°C)
No user-serviceable parts inside. Do not open.
Installation of the equipment must comply with local and national electrical codes.
To prevent airflow restriction, allow clearance around the ventilation openings to be at least:
3 in. (7.6 cm)
Installation Guidelines
Before installing the switch, verify that these guidelines are met:
• For the clearance to the front and rear panels, make sure that
Statement 1047
Statement 1073
Statement 1074
Statement 1076
–
Front-panel indicators can be easily read.
–
Clearance is at least 4.4 in. (11.1 cm) from switch rear panel.
–
Access to ports is sufficient for unrestricted cabling.
–
AC power cord can reach from the AC power outlet to the connector on the switch rear panel.
–
The SFP or SFP+ module minimum bend radius and connector length is met. See the SFP or
SFP+ module documentation for more information.
• For switches with the optional 1025-W power-supply module (PWR-C2-1025WAC=), first
rack-mount the switch before installing the power-supply module.
• Make sure power-supply modules and fan modules are securely inserted in the chassis before
moving the switch.
• When connecting or disconnecting the power cord on a switch that is installed above or below a
1025-W power supply-equipped switch, you might need to remove the module from the switch to
access the power cord.
• Cabling is away from sources of electrical noise, such as radios, power lines, and fluorescent
lighting fixtures. Make sure that the cabling is safely away from other devices that might damage
the cables.
• For copper connections on Ethernet ports, cable lengths from the switch to connected devices can
be up to 328 feet (100 meters).
• For cable requirements for SFP+ module connections, see the “Cable and Adapter Specifications”
section on page B-5. Each port must match the wave-length specifications on the other end of the
cable, and the cable must not exceed the maximum cable length.
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Planning a Switch Data Stack
• Operating environment is within the ranges listed in Appendix A, “Technical Specifications.”
• Airflow around the switch and through the vents is unrestricted.
• Temperature around the unit does not exceed 113°F (45°C). If the switch is installed in a closed or
multirack assembly, the temperature around it might be greater than normal room temperature.
• Cisco Ethernet switches are equipped with cooling mechanisms, such as fans and blowers. However,
these fans and blowers can draw dust and other particles, causing contaminant buildup inside the
chassis, which can result in system malfunction. You must install this equipment in an environment
as free from dust and foreign conductive material (such as metal flakes from construction activities)
as is possible.
Tools and Equipment
Obtain these necessary tools and equipment:
• A number-2 Phillips screwdriver to rack-mount the switch.
• A Torx T15 screwdriver, or the Torx T15 key that ships with StackWise upgrade kits, to install the
StackWise adapter.
Chapter 2 Switch Installation
Verifying Switch Operation
Before you install the switch in a rack, or on a table or shelf, you should power on the switch and verify
that the switch passes POST. See the “Running Express Setup” section in the getting started guide for
the steps required to connect a PC to the switch and to run Express Setup.
Powering Off the Switch
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 the Chapter 2, “Installing the Switch,” section.
Planning a Switch Data Stack
Catalyst 3650 switches can share bandwidth by using data stacking.
• Switch Stacking Guidelines, page 2-5
• Data Stack Cabling Configurations, page 2-5
• Data Stack Bandwidth and Partitioning Examples, page 2-6
• Power-On Sequence for Switch Data Stacks, page 2-7
• Changes to Switch Stack Membership, page 2-8
2-4
Catalyst 3650 Switch Hardware Installation Guide
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Chapter 2 Switch Installation
Switch Stacking Guidelines
For general concepts and management procedures for switch stacks, see the switch software
configuration guide on Cisco.com.
A StackWise adapter must be installed in the stacking port to enable stacking. The StackWise cable
connects to the StackWise adapter in the stacking port. For switches ordered with stacking, the
StackWise adapters are pre-installed. If the switch is not ordered with stacking, the adapters must be
ordered separately and installed.
Before connecting the switches in a stack, observe these stacking guidelines:
• Size of the switch and any optional power-supply module. The 1025-W power-supply module is
longer than the other modules. Stacking switches with the same power-supply modules together
makes it easier to cable the switches. For switch dimensions, see Appendix A, “Technical
Specifications.”
• Length of StackWise cable. Depending on the configurations that you have, you might need
different-sized StackWise 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, see the “StackWise Cables” section on page B-5. The
“Data Stack Cabling Configurations” section on page 2-5 provides examples of recommended
configurations.
• Minimum bend radius and coiled diameter for StackWise cables. Cisco recommends a minimum
bend radius and coiled diameter for each StackWise cable. For more information, see Tab l e B-1 in
the “StackWise Cables Minimum Bend Radius and Coiled Diameter” section on page B-6.
• Data stacks can be created with up to nine switches in a stack.
Planning a Switch Data Stack
NoteYou cannot have a switch stack containing a mix of Catalyst 3650 and Catalyst 3850 switches.
Data Stack Cabling Configurations
Figure 2-1 is an example of a recommended configuration that uses the supplied 0.5-meter StackWise
cable. In this example, the switches are stacked in a vertical rack or on a table. This configuration
provides redundant connections.
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