Kenwood 3750-X Manual

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Catalyst 3750-X and 3560-X Switch
Hardware Installation Guide
June 2011
Revised: April 2013
Text Part Number: OL-19593-03

THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL
STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT
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OR LIMITED WARRANTY, CONTACT YOUR CISCO REPRESENTATIVE FOR A COPY.
The following information is for FCC compliance of Class A devices: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant
to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio-frequency energy and, if not installed and used in accordance with the instruction manual, may cause
harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case users will be required
to correct the interference at their own expense.
The following information is for FCC compliance of Class B devices: The equipment described in this manual generates and may radiate radio-frequency energy. If it is not
installed in accordance with Cisco’s installation instructions, it may cause interference with radio and television reception. This equipment has been tested and found to
comply with the limits for a Class B digital device in accordance with the specifications in part 15 of the FCC rules. These specifications are designed to provide reasonable
protection against such interference in a residential installation. However, there is no guarantee that interference will not occur in a particular installation.
Modifying the equipment without Cisco’s written authorization may result in the equipment no longer complying with FCC requirements for Class A or Class B digital
devices. In that event, your right to use the equipment may be limited by FCC regulations, and you may be required to correct any interference to radio or television
communications at your own expense.
You can determine whether your equipment is causing interference by turning it off. If the interference stops, it was probably caused by the Cisco equipment or one of its
peripheral devices. If the equipment causes interference to radio or television reception, try to correct the interference by using one or more of the following measures:
• Turn the television or radio antenna until the interference stops.
• Move the equipment to one side or the other of the television or radio.
• Move the equipment farther away from the television or radio.
• Plug the equipment into an outlet that is on a different circuit from the television or radio. (That is, make certain the equipment and the television or radio are on circuits
controlled by different circuit breakers or fuses.)
Modifications to this product not authorized by Cisco Systems, Inc. could void the FCC approval and negate your authority to operate the product.
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Catalyst 3750-X and 3560-X Switch Hardware Installation Guide
© 2010–2013 Cisco Systems, Inc. All rights reserved.

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CONTENTS
Preface vii
CHAPTER 1 Product Overview 1-1
Switch Models 1-1
Front Panel Description 1-5
SFP Module Slots 1-6
10/100/1000 Ethernet Ports 1-6
PoE+ and UPOE Ports 1-6
Network Modules 1-7
LEDs 1-11
USB Mini-Type B Port 1-18
Rear Panel Description 1-18
RJ-45 Console Port LED 1-19
USB Type A Interface 1-19
StackWise Ports 1-20
Power Supply Modules 1-20
Fan Modules 1-23
XPS Connector 1-23
StackPower Connector (Catalyst 3750-X Switches) 1-24
Management Ports 1-24
Management Options 1-25
Network Configurations 1-26
CHAPTER 2 Switch Installation 2-1
Preparing for Installation 2-1
Safety Warnings 2-1
Installation Guidelines 2-4
Tools and Equipment 2-5
Planning a Switch Data Stack (Catalyst 3750-X Switches) 2-5
Switch Data Stacking Guidelines 2-5
Data Stack Cabling Configurations 2-6
Data Stack Bandwidth and Partitioning Examples 2-7
Power On Sequence for Switch Data Stacks 2-8

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Planning a StackPower Stack (Catalyst 3750-X Switches) 2-9
StackPower Stacking Guidelines 2-9
StackPower Cabling Configurations 2-10
StackPower Partitioning Examples 2-14
Installing the Switch 2-15
Rack-Mounting 2-15
Table- or Shelf-Mounting 2-19
After Installing the Switch 2-19
Connecting to the StackWise Ports (Catalyst 3750-X Switches) 2-19
Connecting to the StackPower Ports (Catalyst 3750-X Switches) 2-20
Connecting the StackPower Ports to the XPS 2200 2-22
Installing a Network Module in the Switch 2-22
Tools and Equipment 2-23
Installing Network Modules 2-23
Removing a Network Module 2-24
Installing SFP and SFP+ Modules 2-24
Installing an SFP Module 2-25
Removing an SFP Module 2-26
Connecting Devices to the Ethernet Ports 2-26
10/100/1000 Ethernet Port Connections 2-27
PoE+ and UPOE Port Connections 2-27
Where to Go Next 2-29
CHAPTER 3 Power Supply and Fan Module Installation 3-1
Power Supply Module Overview 3-1
Installation Guidelines 3-5
Installing an AC Power Supply 3-7
Installing a DC Power Supply 3-8
Equipment That You Need 3-8
Grounding the Switch 3-9
Installing the DC Power Supply in the Switch 3-11
Wiring the DC Input Power Source 3-11
Finding the Power Supply Module Serial Number 3-12
Fan Module Overview 3-14
Installing a Fan Module 3-15
Finding the Fan Module Serial Number 3-15

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CHAPTER 4 Troubleshooting 4-1
Diagnosing Problems 4-1
Switch POST Results 4-1
Switch LEDs 4-1
Switch Connections 4-2
Switch Performance 4-4
Resetting the Switch to the Factory Default Settings 4-5
Finding the Switch Serial Number 4-6
Replacing a Failed Data Stack Member (Catalyst 3750-X Switches) 4-6
APPENDIX A Technical Specifications A-1
Switch Specifications A-1
Power Supply Module Specifications A-2
Fan Module Specifications A-4
APPENDIX B Connector and Cable Specifications B-1
Connector Specifications B-1
10/100/1000 Ports B-1
10 Gigabit Ethernet CX1 (SFP+ Copper) Connectors B-2
SFP and SFP+ Modules B-2
10/100 Ethernet Management Port B-3
Console Port B-4
Cable and Adapter Specifications B-5
SFP and SFP+ Module Cable Specifications B-5
Four Twisted-Pair Cable Pinouts B-7
Two Twisted-Pair Cable Pinouts B-7
Identifying a Crossover Cable B-8
Console Port Adapter Pinouts B-8
APPENDIX C Configuring the Switch with the CLI-Based Setup Program C-1
Accessing the CLI C-1
Accessing the CLI Through Express Setup C-1
Accessing the CLI Through a Console Port C-2
Installing the Cisco Microsoft Windows USB Device Driver C-3
Uninstalling the Cisco Microsoft Windows USB Driver C-5
Entering the Initial Configuration Information C-6
IP Settings C-6
Configuring the Setup Program C-6

Contents
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Preface
Purpose
This guide describes the hardware features of the Catalyst 3750-X and 3560-X 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/en/US/products/ps10745/tsd_products_support_series_home.html
Related Publications
Catalyst 3750-X switches:
http://www.cisco.com/en/US/products/ps10745/tsd_products_support_series_home.html
Catalyst 3560-X switches:
http://www.cisco.com/en/US/products/ps10744/tsd_products_support_series_home.html
• Catalyst 3750-X and 3560-X Switch Getting Started Guide
• Catalyst 3750-X and 3560-X Switch Hardware Installation Guide
• Regulatory Compliance and Safety Information for the Catalyst 3750-X and 3560-X Switch
• Installation Notes for the Catalyst 3750-X, Catalyst 3560-X Switch Power Supply Modules
• Installation Notes for the Catalyst 3750-X and 3560-X Switch Fan Module
• Installation Notes for the Catalyst 3750-X and 3560-X Switch Network Modules
• Release Notes for the Catalyst 3750-X and 3560-X Switch
• Catalyst 3750-X and 3560-X Switch Software Configuration Guide
• Catalyst 3750-X and 3560-X Switch Command Reference
• Catalyst 3750-X, 3750-E, 3560-X, and 3560-E Switch System Message Guide
• Cisco IOS Software Installation Document

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Chapter
Information about Cisco SFP and SFP+ modules is available from this Cisco.com site:
http://www.cisco.com/en/US/products/hw/modules/ps5455/prod_installation_guides_list.html
SFP compatibility matrix documents are available from this Cisco.com site:
http://www.cisco.com/en/US/products/hw/modules/ps5455/products_device_support_tables_list.html
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:
http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html
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.

CHAPTER
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1
Product Overview
The Catalyst 3750-X and 3560-X 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 3750-X switches support stacking through Cisco StackWise technology and power
management through Cisco StackPower technology. The Catalyst 3560-X switches do not support
switch stacking or StackPower.
Unless otherwise noted, the term switch refers to a standalone switch and to a switch stack.
• Switch Models, page 1-1
• Front Panel Description, page 1-5
• Rear Panel Description, page 1-18
• Management Options, page 1-25
Switch Models
Table 1-1 Catalyst 3750-X Switch Models
Switch Model Cisco IOS Image Description
Catalyst 3750-X-24T-L LAN Base image 24 10/100/1000 Ethernet ports, StackWise Plus, 1
network module
1
slot, 350-W power supply
Catalyst 3750-X-48T-L LAN Base image 48 10/100/1000 Ethernet ports, StackWise Plus, one
network module
1
slot, 350-W power supply
Catalyst 3750-X-24P-L LAN Base image 24 10/100/1000 PoE+
2
ports, StackWise Plus, 1
network module
1
slot, 715-W power supply
Catalyst 3750-X-48P-L LAN Base image 48 10/100/1000 PoE+
2
ports, StackWise Plus, one
network module
1
slot, 715-W power supply
Catalyst 3750-X-48PF-L LAN Base image 48 10/100/1000 PoE+
2
ports, StackWise Plus, 1
network module
1
slot, 1100-W power supply
Catalyst 3750-X-24U-L
3
LAN Base image 24 10/100/1000 UPOE
4
ports, StackWise Plus,
StackPower, 1 network module
1
slot, 1100-W power
supply

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Chapter 1 Product Overview
Switch Models
Catalyst 3750-X-48U-L
3
LAN Base image 48 10/100/1000 UPOE
4
ports, StackWise Plus,
StackPower, 1 network module
1
slot, 1100-W power
supply
Catalyst 3750-X-24T-S IP Base image 24 10/100/1000 Ethernet ports, StackWise Plus,
StackPower, 1 network module
1
slot, 350-W power
supply
Catalyst 3750-X-48T-S IP Base image 48 10/100/1000 Ethernet ports, StackWise Plus,
StackPower, 1 network module
1
slot, 350-W power
supply
Catalyst 3750-X-24P-S IP Base image 24 10/100/1000 PoE+
2
ports, StackWise Plus,
StackPower, 1 network module
1
slot, 715-W power
supply
Catalyst 3750-X-48P-S IP Base image 48 10/100/1000 PoE+
2
ports, StackWise Plus,
StackPower, 1 network module
1
slot, 715-W power
supply
Catalyst 3750-X-48PF-S IP Base image 48 10/100/1000 PoE+
2
ports, StackWise Plus,
StackPower, 1 network module
1
slot, 1100-W power
supply
Catalyst 3750-X-24U-S
3
IP Base image 24 10/100/1000 UPOE
4
ports, StackWise Plus,
StackPower, 1 network module
1
slot, 1100-W power
supply
Catalyst 3750-X-48U-S
3
IP Base image 48 10/100/1000 UPOE
4
ports, StackWise Plus,
StackPower, 1 network module
1
slot, 1100-W power
supply
Catalyst 3750-X-12S-S IP Base image 12 SFP module slots, StackWise Plus, StackPower,
1 network module
1
slot, 350-W power supply
Catalyst 3750-X-24S-S IP Base image 24 SFP module slots, StackWise Plus, StackPower,
1 network module
1
slot, 350-W power supply
Catalyst 3750-X-24T-E IP Services image 24 10/100/1000 Ethernet ports, StackWise Plus,
StackPower, 1 network module
1
slot, 350-W power
supply
Catalyst 3750-X-48T-E IP Services image 48 10/100/1000 Ethernet ports, StackWise Plus,
StackPower, 1 network module
1
slot, 350-W power
supply
Catalyst 3750-X-24P-E IP Services image 24 10/100/1000 PoE+
2
ports, StackWise Plus,
StackPower, 1 network module
1
slot, 715-W power
supply
Catalyst 3750-X-48P-E IP Services image 48 10/100/1000 PoE+
2
ports, StackWise Plus,
StackPower, 1 network module
1
slot, 715-W power
supply
Catalyst 3750-X-48PF-E IP Services image 48 10/100/1000 PoE+
2
ports, StackWise Plus,
StackPower, 1 network module
1
slot, 1100-W power
supply
Table 1-1 Catalyst 3750-X Switch Models (continued)
Switch Model Cisco IOS Image Description

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Chapter 1 Product Overview
Switch Models
Catalyst 3750-X-24U-E
3
IP Services image 24 10/100/1000 UPOE
4
ports, StackWise Plus,
StackPower, 1 network module
1
slot, 1100-W power
supply
Catalyst 3750-X-48U-E
3
IP Services image 48 10/100/1000 UPOE
4
ports, StackWise Plus,
StackPower, 1 network module
1
slot, 1100-W power
supply
Catalyst 3750-X-12S-E IP Services image 12 SFP module slots, StackWise Plus, StackPower,
1 network module
1
slot, 350-W power supply
Catalyst 3750-X-24S-E IP Services image 24 SFP module slots, StackWise Plus, StackPower,
1 network module
1
slot, 350-W power supply
1. Available network modules: 10-Gigabit Ethernet network module; 10-Gigabit Ethernet (copper) network module; 10-Gigabit
Ethernet service module; 1-Gigabit Ethernet network module; blank module (see Table 1-3 on page 1-7).
2. PoE+ = Power over Ethernet plus (provides up to 30 W per port).
3. Not supported for NEBS.
4. UPOE = Universal Power over Ethernet (provides up to 60 W per port).
Table 1-2 Catalyst 3560-X Switch Models
Switch Part Number Description
Catalyst 3560-X-24T-L LAN Base image 24 10/100/1000 Ethernet ports, 1 network module
1
slot, 350-W power supply
Catalyst 3560-X-48T-L LAN Base image 48 10/100/1000 Ethernet ports, 1 network module
1
slot, 350-W power supply
Catalyst 3560-X-24P-L LAN Base image 24 10/100/1000 PoE+
2
ports, 1 network module
1
slot,
715-W power supply
Catalyst 3560-X-48P-L LAN Base image 48 10/100/1000 PoE+
2
ports, 1 network module
1
slot,
715-W power supply
Catalyst 3560-X-48PF-L LAN Base image 48 10/100/1000 PoE+
2
ports, 1 network module
1
slot,
1100-W power supply
Catalyst 3560-X-24U-L
3
LAN Base image 24 10/100/1000 UPOE
4
ports, 1 network module
1
slot,
1100-W power supply
Catalyst 3560-X-48U-L
3
LAN Base image 48 10/100/1000 UPOE
4
ports, 1 network module
1
slot,
1100-W power supply
Catalyst 3560-X-24T-S IP Base image 24 10/100/1000 Ethernet ports, 1 network module
1
slot, 350-W power supply
Catalyst 3560-X-48T-S IP Base image 48 10/100/1000 Ethernet ports, 1 network module
1
slot, 350-W power supply
Catalyst 3560-X-24P-S IP Base image 24 10/100/1000 PoE+
2
ports, 1 network module
1
slot,
715-W power supply
Catalyst 3560-X-48P-S IP Base image 48 10/100/1000 PoE+
2
ports, 1 network module
1
slot,
715-W power supply
Catalyst 3560-X-48PF-S IP Base image 48 10/100/1000 PoE+
2
ports, 1 network module
1
slot,
1100-W power supply
Table 1-1 Catalyst 3750-X Switch Models (continued)
Switch Model Cisco IOS Image Description

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Switch Models
Catalyst 3560-X-24U-S
3
IP Base image 24 10/100/1000 UPOE
4
ports, 1 network module
1
slot,
1100-W power supply
Catalyst 3560-X-48U-S
3
IP Base image 48 10/100/1000 UPOE
4
ports, 1 network module
1
slot,
1100-W power supply
Catalyst 3560-X-24T-E IP Services image 24 10/100/1000 Ethernet ports, 1 network module
1
slot, 350-W power supply
Catalyst 3560-X-48T-E IP Services image 48 10/100/1000 Ethernet ports, 1 network module
1
slot, 350-W power supply
Catalyst 3560-X-24P-E IP Services image 24 10/100/1000 PoE+
2
ports, 1 network module
1
slot,
715-W power supply
Catalyst 3560-X-48P-E IP Services image 48 10/100/1000 PoE+
2
ports, 1 network module
1
slot,
715-W power supply
Catalyst 3560-X-48PF-E IP Services image 48 10/100/1000 PoE+
2
ports, 1 network module
1
slot,
1100-W power supply
Catalyst 3560-X-24U-E
3
IP Services image 24 10/100/1000 UPOE
4
ports, 1 network module
1
slot,
1100-W power supply
Catalyst 3560-X-48U-E
3
IP Services image 48 10/100/1000 UPOE
4
ports, 1 network module
1
slot,
1100-W power supply
1. Available network modules: 10-Gigabit Ethernet network module; 10-Gigabit Ethernet (copper) network module; 10-Gigabit
Ethernet service module; 1-Gigabit Ethernet network module; blank module (see Table 1-3 on page 1-7).
2. PoE+ = Power over Ethernet plus (provides up to 30 W per port).
3. Not supported for NEBS.
4. UPOE = Universal Power over Ethernet (provides up to 60 W per port).
Table 1-2 Catalyst 3560-X Switch Models (continued)
Switch Part Number Description

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Chapter 1 Product Overview
Front Panel Description
Front Panel Description
The switch front panel includes the Mode button, a USB 5-pin mini-Type B console port, the downlink
ports and LEDs, the network module, and the switch LEDs.
Figure 1-1 shows the Catalyst 3750-X-24S switch as an example.
Figure 1-1 Catalyst 3750-X-24S Switch Front Panel
Figure 1-2 shows the Catalyst 3750-X-48P switch as an example.
Figure 1-2 Catalyst 3750-X-48P Switch Front Panel
1Mode button 4SFP module slots (downlink)
2USB Type-B console port 5Network Module
3Status LEDs
Catalyst3750-XSeries
SYSTXPSSTAT SPEEDDUPLX
EN
PoESTACK
MAST
S-PWR
MODE
CONSOLE
12345678910 1112 1314 15 16 17 18 19 20 21 22 2324
C3KX-NM-1G
NETWORK
MODULE
G1 G2 G3 G4
282317
4
5
23
1
1Mode button 410/100/1000 ports
2USB Type-B console port 5Network Module
3Status LEDs
251960
Catalyst 3750-X PoE+48
SYST XPS STAT SPEED DUPLX
EN
PoE
STACK
MAST
S-PWR
MODE
CONSOLE
12345678910 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
1
23
4
5
C3KX-NM-10G
NETWORK
MODULE
G1 G2/TE1 G3 G4/TE2

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Chapter 1 Product Overview
Front Panel Description
SFP Module Slots
The switch (downlink) SFP module slots on the Catalyst 3750-X-12S and Catalyst 3750-X-24S switch
support any combination of standard SFP modules. SFP+ modules are not supported.
Note For information about about the (uplink) SFP and SFP+ module slots on the network modules, see the
“Network Modules” section on page 1-7.
See Table 1-4 for a list of supported SFP modules.
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 2-27 and Appendix B, “Connector and Cable
Specifications.”
PoE+ and UPOE Ports
The PoE+ and UPOE ports use the same connectors as described in the “10/100/1000 Ethernet Ports”
section on page 1-6 and provide this support.
• Support for prestandard Cisco powered devices
• Support for IEEE 802.3af compliant powered devices (up to 15.4 W)
• Support for IEEE 802.3at compliant powered devices (up to 30 W)
• Support for Cisco UPOE (up to 60 W) —UPOE switches only
• Support for Cisco enhanced PoE
• Configuration for StackPower PoE+ and UPOE. When the switch internal power supply module(s)
cannot support the total load, StackPower configurations allow the switch to leverage power
available from other switches (only Catalyst 3750-X switches)
• Configurable support for Cisco intelligent power management, including enhanced power
negotiation, power reservation, and per-port power policing
See Table 1-18 for the power supply matrix that defines the available PoE, PoE+, and UPOE power per
port.
Note The output of the PoE+ and UPOE 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 1-20, the “PoE+ and UPOE Port Connections” section on
page 2-27, and Appendix B, “Connector and Cable Specifications.”

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Chapter 1 Product Overview
Front Panel Description
Network Modules
The switch supports one hot-swappable network module that provides uplink ports to connect to other
devices. You must insert the network module during switch operation. Operating the switch without a
network module is not supported. A blank module is available.
The switch generates logs when you insert or remove a network module with SFP ports.
Table 1-3 Network Modules
Network Module
1
1. All network modules are hot-swappable.
Description
10-Gigabit Ethernet
C3KX-NM-10G
This module has four slots. Two slots support only 1-Gigabit SFP modules, two
slots support either 1-Gigabit SFP or 10-Gigabit SFP+ modules.
Note The GLC-T SFP is not supported on the SFP+ slots of C3KX-NM-10G.
The four slots are grouped as two pairs with each pair consisting of one SFP slot
and one SFP+ slot. Each pair supports either two 1-Gigabit SFP modules or one
10-Gigabit SFP+ module. A 10-Gigabit SFP+ module cannot operate at the same
time as the corresponding 1-Gigabit SFP module in the pair.
Supported combinations of SFP and SFP+ modules:
• Slots 1, 2, 3, and 4 populated with 1-Gigabit SFP modules.
• Slots 1 and 2 populated with 1-Gigabit SFP modules and Slot 4 populated
with one 10-Gigabit SFP+ module.
• Slot 2 populated with one 10-Gigabit SFP+ module and Slots 3 and 4
populated with 1-Gigabit SFP modules.
• Slot 2 and Slot 4 each populated with 10-Gigabit SFP+ modules.
A 10-Gigabit SFP+ module takes precedence over a 1-Gigabit SFP module
except when an SFP module is first inserted in Slot 1 and has link. When you
insert an SFP+ module in Slot 2, the SFP in Slot 1 retains link. The SFP+ module
in Slot 2 does not operate.
When the SFP module in Slot 1 is shutdown, loses link, or is removed, the SFP+
module in Slot 2 becomes operational. At this point, the SFP module in Slot 1
will not become operational under any circumstance for as long as an SFP+
module remains in Slot 2 whether it is link up or not.
The same precedence applies to Slots 3 and 4.
10-Gigabit Ethernet
C3KX-NM-10GT
This module has two autonegotiating 10-Gigabit Ethernet (copper) ports.
10-Gigabit Ethernet
Service Module
C3KX-SM-10G
This module has two slots that support either 1-Gigabit SFP or 10-Gigabit SFP+
modules. The service module supports Net Flow and MACSec Uplink
Encryption (switch- to-switch encryption between uplinks).
1-Gigabit Ethernet
C3KX-NM-1G
This module has four 1-Gigabit 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-Gigabit network module, the SFP+ module does not
operate, and the switch logs an error message.
Blank
C3KX-NM_BLNK
This module has no uplink ports.

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For information about the network modules, see the “Installing a Network Module in the Switch” section
on page 2-22. For cable specifications, see Appendix B, “Connector and Cable Specifications.”
SFP and SFP+ Modules
The SFP and SFP+ modules provide copper or fiber-optic connections to other devices. These
transceiver modules are field-replaceable, providing 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 modules on the switch.
Note The (downlink) SFP module slots on the Catalyst 3750-X-12S and Catalyst 3750-X-24S switch front
panel support any combination of standard SFP modules. SFP+ modules are not supported.
Table 1-4 Supported Cisco SFP Modules
Part Number Description
GLC-GE-100FX=
1,2,3
100FX SFP on GE SFP ports for LAN switches
GLC-LH-SM= GE SFP, LC connector LX/LH transceiver
GLC-LH-SMD= GE SFP, LC connector LX/LH transceiver, extended operating temperature
range
GLC-SX-MM= GE SFP, LC connector SX transceiver
GLC-SX-MMD= GE SFP, LC connector SX transceiver, extended operating temperature
range
GLC-T=
1, 3
1000BASE-T SFP transceiver module for copper connections
GLC-ZX-SM= 1000BASE-ZX SFP module for SMF, 1550 nm
GLC-BX-D=
1
1000BASE-BX10 SFP module for single-strand SMF, 1490-nm TX,
1310-nm RX wavelength
GLC-BX-U=
1
1000BASE-BX10 SFP module for single-strand SMF, 1310-nm TX,
1490-nm RX wavelength

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CWDM-SFP-1470= CWDM 1470-nm SFP Gigabit Ethernet and 1G/2G FC
CWDM-SFP-1490= CWDM 1490-nm SFP Gigabit Ethernet and 1G/2G FC
CWDM-SFP-1510= CWDM 1510-nm SFP Gigabit Ethernet and 1G/2G FC
CWDM-SFP-1530= CWDM 1530-nm SFP Gigabit Ethernet and 1G/2G FC
CWDM-SFP-1550= CWDM 1550-nm SFP Gigabit Ethernet and 1G/2G FC
CWDM-SFP-1570= CWDM 1570-nm SFP Gigabit Ethernet and 1G/2G FC
CWDM-SFP-1590= CWDM 1590-nm SFP Gigabit Ethernet and 1G/2G FC
CWDM-SFP-1610= CWDM 1610-nm SFP Gigabit Ethernet and 1G/2G FC
SFP-GE-S= 1000BASE-SX SFP module for MMF, 850 nm (DOM)
4
SFP-GE-L= 1000BASE-LX/LH SFP module for SMF, 1300 nm (DOM)
4
DWDM-SFP-3033= DWDM SFP 1530.33-nm SFP (100 GHz ITU grid)
DWDM-SFP-3112= DWDM SFP 1531.12-nm SFP (100 GHz ITU grid)
DWDM-SFP-3190= DWDM SFP 1531.90-nm SFP (100 GHz ITU grid)
DWDM-SFP-3268= DWDM SFP 1532.68-nm SFP (100 GHz ITU grid)
DWDM-SFP-3346= DWDM SFP 1533.47-nm SFP (100 GHz ITU grid)
DWDM-SFP-3425= DWDM SFP 1534.25-nm SFP (100 GHz ITU grid)
DWDM-SFP-3504= DWDM SFP 1535.04-nm SFP (100 GHz ITU grid)
DWDM-SFP-3582= DWDM SFP 1535.82-nm SFP (100 GHz ITU grid)
DWDM-SFP-3661= DWDM SFP 1536.61-nm SFP (100 GHz ITU grid)
DWDM-SFP-3739= DWDM SFP 1537.40-nm SFP (100 GHz ITU grid)
DWDM-SFP-3819= DWDM SFP 1538.19-nm SFP (100 GHz ITU grid)
DWDM-SFP-3898= DWDM SFP 1538.98-nm SFP (100 GHz ITU grid)
DWDM-SFP-3977= DWDM SFP 1539.77-nm SFP (100 GHz ITU grid)
DWDM-SFP-4056= DWDM SFP 1540.56-nm SFP (100 GHz ITU grid)
DWDM-SFP-4134= DWDM SFP 1541.35-nm SFP (100 GHz ITU grid)
DWDM-SFP-4214= DWDM SFP 1542.14-nm SFP (100 GHz ITU grid)
DWDM-SFP-4294= DWDM SFP 1542.94-nm SFP (100 GHz ITU grid)
DWDM-SFP-4373= DWDM SFP 1543.73-nm SFP (100 GHz ITU grid)
DWDM-SFP-4453= DWDM SFP 1544.53-nm SFP (100 GHz ITU grid)
DWDM-SFP-4532= DWDM SFP 1545.32-nm SFP (100 GHz ITU grid)
DWDM-SFP-4612= DWDM SFP 1546.12-nm SFP (100 GHz ITU grid)
Table 1-4 Supported Cisco SFP Modules (continued)
Part Number Description

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DWDM-SFP-4692= DWDM SFP 1546.92-nm SFP (100 GHz ITU grid)
DWDM-SFP-4772= DWDM SFP 1547.72-nm SFP (100 GHz ITU grid)
DWDM-SFP-4851= DWDM SFP 1548.51-nm SFP (100 GHz ITU grid)
DWDM-SFP-4931= DWDM SFP 1549.32-nm SFP (100 GHz ITU grid)
DWDM-SFP-5012= DWDM SFP 1550.12-nm SFP (100 GHz ITU grid)
DWDM-SFP-5092= DWDM SFP 1550.92-nm SFP (100 GHz ITU grid)
DWDM-SFP-5172= DWDM SFP 1551.72-nm SFP (100 GHz ITU grid)
DWDM-SFP-5252= DWDM SFP 1552.52-nm SFP (100 GHz ITU grid)
DWDM-SFP-5332= DWDM SFP 1553.33-nm SFP (100 GHz ITU grid)
DWDM-SFP-5413= DWDM SFP 1554.13-nm SFP (100 GHz ITU grid)
DWDM-SFP-5494= DWDM SFP 1554.94-nm SFP (100 GHz ITU grid)
DWDM-SFP-5575= DWDM SFP 1555.75-nm SFP (100 GHz ITU grid)
DWDM-SFP-5655= DWDM SFP 1556.55-nm SFP (100 GHz ITU grid)
DWDM-SFP-5736= DWDM SFP 1557.36-nm SFP (100 GHz ITU grid)
DWDM-SFP-5817= DWDM SFP 1558.17-nm SFP (100 GHz ITU grid)
DWDM-SFP-5898= DWDM SFP 1558.98-nm SFP (100 GHz ITU grid)
DWDM-SFP-5979= DWDM SFP 1559.79-nm SFP (100 GHz ITU grid)
DWDM-SFP-6061= DWDM SFP 1560.61-nm SFP (100 GHz ITU grid)
DWDM-SFP-6141= DWDM SFP 1561.42-nm SFP (100 GHz ITU grid)
1. Not supported in the SFP+ slots (2 and 4) on the C3KX-NM-10G.
2. Not supported on the C3KX-SM-10G
3. Not supported for NEBS.
4. DOM = digital optical monitoring.
Table 1-5 Supported Cisco SFP+ Modules
Part Number Description
SFP-10G-LR= 10 GBASE LR SFP+ transceiver module for SMF, 1350 nm,
LC duplex connector
SFP-10G-SR= 10 GBASE SR SFP+ transceiver module for MMF, 850 nm,
LC duplex connector
SFP-10G-LRM= 10 GBASE-LRM SFP+ module for MMF and SMF, 1310 nm
SFP-H10GB-CU1M= 10 GBASE-CU Twinax SFP+ cable assembly, 1 meter (Version -02)
SFP-H10GB-CU3M= 10 GBASE-CU Twinax SFP+ cable assembly, 3 meters (Version -02)
SFP-H10GB-CU5M= 10 GBASE-CU Twinax SFP+ cable assembly, 5 meters (Version -02)
Table 1-4 Supported Cisco SFP Modules (continued)
Part Number Description

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For information about SFP modules, see your SFP module documentation and the “Installing SFP and
SFP+ Modules” section on page 2-24. For cable specifications, see Appendix B, “Connector and Cable
Specifications.”
The Catalyst 3560-X switch supports the SFP module patch cable (CAB-SFP-50CM), a 0.5-meter,
copper, passive cable with SFP module connectors at each end. This cable is only used with 1-Gigabit
Ethernet SFP ports to connect two Catalyst 3560-X switches in a cascaded configuration.
LEDs
You can use the switch LEDs to monitor switch activity and its performance. Figure 1-3 shows the
Catalyst 3750-X switch LEDs and the Mode button that you use to select a port mode.
Figure 1-3 Switch Front Panel LEDs
System LED
1System LED 6USB console port LED
2XPS
1
LED
1. XPS = Expandable power system.
7S-PWR (StackPower) LED
2
3Status LED 8Master LED
2
2. Only Catalyst 3750-X switches.
4Speed LED 9Stack LED
2
5Duplex LED 10 PoE LED
3
3. Only switches with PoE+ or UPOE ports.
Table 1-6 System LED
Color System Status
Off System is not powered on.
Green System is operating normally.
Blinking Green Switch is running power on self-test (POST).
Amber System is receiving power but is not functioning properly.
SYSTXPSSTAT SPEED DUPLX
PoE
STAC K
MAST
S-PWR
MODE
CONSOLE
12345678910 11 12
EN
1
251962
7
5
4
3
2
8910
6

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For information on the System LED colors during power-on self-test (POST), see the “Diagnosing
Problems” section on page 4-1.
XPS LED
For information about the XPS 2200, see the Cisco eXpandable Power System 2200 Hardware
Installation Guide on Cisco.com.
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. Table 1-8
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. Table 1-9 explains how to interpret
the port LED colors in different port modes.
When you press the Mode button on any switch in the Catalyst 3750-X switch stack, all the stack
switches change to show the same selected mode. For example, if you press the Mode button on the stack
master to show the SPEED LED, all the other switches in the stack also show the SPEED LED.
Ta b l e 1- 7 X P S L E D
Color XPS Status
Off XPS cable is not installed.
Switch is in StackPower mode (Catalyst 3750-X).
Green XPS is connected and ready to provide back-up power.
Blinking green XPS is connected but is unavailable because it is providing power to another device
(redundancy has been allocated to a neighboring device).
Amber The XPS is in standby mode or in a fault condition. See the XPS 2200
documentation for information about the standby mode and fault conditions.
Blinking amber The power supply in a switch has failed, and the XPS is providing power to that
switch (redundancy has been allocated to this device).
Table 1-8 Port Mode LEDs
Mode LED Port Mode Description
STAT Port status The port status. This is the default mode.
SPEED Port speed The port operating speed: 10, 100, or 1000 Mb/s.
DUPLX Port duplex mode The port duplex mode: full duplex or half duplex.
MAST
1
Master The stack master status.