Cisco CDB-8U, CDB-8P Installation Manual

Catalyst Digital Building Series Switch Hardware Installation Guide

First Published: 2017-05-19

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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: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15
of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference
will not occur in a particular installation. If the equipment causes interference to radio or television reception, which can be determined by turning the equipment off and on, users are
encouraged to try to correct the interference by using one or more of the following measures:

Reorient or relocate the receiving antenna.

•

Increase the separation between the equipment and receiver.

•

Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

•

Consult the dealer or an experienced radio/TV technician for help.

•

Modifications to this product not authorized by Cisco could void the FCC approval and negate your authority to operate the product

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©

2017 Cisco Systems, Inc. All rights reserved.

CONTENTS

Preface

CHAPTER 1

Preface vii

Document Conventions vii

Obtaining Documentation and Submitting a Service Request ix

Product Overview 1

Switch Models 2

Front Panel 2

PoE, PoE+ and UPOE Ports 4

Gigabit Uplink Ports 5

Console Ports 5

USB Type A Port 6

SD Flash Memory Card Slot 6

LEDs 6

Downlink Port Data LEDs 8

Downlink Port PoE LEDs 8

Uplink Port Data LEDs 8

System LED 9

Status LED 9

Speed LED 10

Power Save LED 10

Mode Button 10

Rear Panel 11

Network Configurations 12

CHAPTER 2

Switch Installation 13

Safety Warnings 13

Box Contents 15

Catalyst Digital Building Series Switch Hardware Installation Guide

iii

Contents

Mounting Accessories 16

Installation Guidelines 18

Mounting the Switch 20

Flexible Mounting 20

Horizontal Mounting 24

Horizontal Mounting - Undermount 24

Horizontal Mounting - Overmount 30

Vertical Mounting 36

Fixed Vertical Mount 36

Top Vertical Mount 42

Top Vertical Mount with two Flexible Mounts 49

Wall Mount 58

Prohibited Mounting Orientations 62

CHAPTER 3

Electrical Installation 63

Flexible Mount with Direct-Wired Junction Box 63

Flexible Mount with IEC C14 Power Junction Box 65

Rack Mounting 66

Establishing the System Ground 73

Required Tools and Equipment 74

Connecting the System Ground 74

Installing the Power Cord Retainer 75

10/100 Port Connections 79

Troubleshooting 81

Diagnosing Problems 81

Switch POST Results 81

Switch LEDs 81

Switch Connections 81

Bad or Damaged Cable 81

Ethernet Cables 82

Link Status 82

10/100 Port Connections 82

10/100 Port Connections 82

Interface Settings 83

Ping End Device 83

Catalyst Digital Building Series Switch Hardware Installation Guide

iv

Contents

Switch Performance 83

Speed, Duplex, and Autonegotiation 83

Autonegotiation and Network Interface Cards 84

Cabling Distance 84

Finding the Switch Serial Number 84

APPENDIX A

APPENDIX B

APPENDIX C

Technical Specifications 87

Physical Specifications 87

Environmental Specifications 87

Power Requirements 88

Connector and Cable Specifications 89

Connector Specifications 89

10/100/1000 Ports (Including PoE) 89

Cables and Adapters 90

Cable Pinouts 90

Console Port Adapter Pinouts 91

Configuring the Switch 93

Configuring the Switch Using the Configuration Setup Wizard 93

Quick Setup: Accessing the Configuration Setup Wizard 93

Completing the Configuration Setup Wizard 94

Configuring the Switch Using the CLI 95

Accessing the CLI Through the Console Port 95

Connecting the RJ-45 Console Port 95

Connecting the USB Console Port 95

Installing the Cisco Microsoft Windows USB Device Driver 96

Installing the Cisco Microsoft Windows XP USB Driver 96

Installing the Cisco Microsoft Windows 2000 USB Driver 97

Installing the Cisco Microsoft Windows Vista and Windows 7 USB Driver 97

Uninstalling the Cisco Microsoft Windows USB Driver 98

Uninstalling the Cisco Microsoft Windows XP and 2000 USB Driver 98

Uninstalling the Cisco Microsoft Windows Vista and Windows 7 USB Driver 98

Using the Setup.exe Program 98

Using the Add or Remove Programs Utility 98

Catalyst Digital Building Series Switch Hardware Installation Guide

v

Contents

Using the Smartphone App 99

Catalyst Digital Building Series Switch Hardware Installation Guide

vi

Preface

Document Conventions, page vii

•

Obtaining Documentation and Submitting a Service Request, page ix

•

Document Conventions

This document uses the following conventions:

DescriptionConvention

^ or Ctrl

Italic font

...

|

[x | y]

Both the ^ symbol and Ctrl represent the Control (Ctrl) key on a keyboard. For
example, the key combination ^D or Ctrl-D means that you hold down the Control
key while you press the D key. (Keys are indicated in capital letters but are not
case sensitive.)

Commands and keywords and user-entered text appear in bold font.bold font

Document titles, new or emphasized terms, and arguments for which you supply
values are in italic font.

Terminal sessions and information the system displays appear in courier font.Courier font

Bold Courier font indicates text that the user must enter.Bold Courier font

Elements in square brackets are optional.[x]

An ellipsis (three consecutive nonbolded periods without spaces) after a syntax
element indicates that the element can be repeated.

A vertical line, called a pipe, indicates a choice within a set of keywords or
arguments.

Optional alternative keywords are grouped in brackets and separated by vertical
bars.

Catalyst Digital Building Series Switch Hardware Installation Guide

vii

Document Conventions

Preface

DescriptionConvention

Note

{x | y}

Required alternative keywords are grouped in braces and separated by vertical
bars.

[x {y | z}]

Nested set of square brackets or braces indicate optional or required choices
within optional or required elements. Braces and a vertical bar within square
brackets indicate a required choice within an optional element.

string

A nonquoted set of characters. Do not use quotation marks around the string or
the string will include the quotation marks.

Nonprinting characters such as passwords are in angle brackets.< >

Default responses to system prompts are in square brackets.[ ]

!, #

An exclamation point (!) or a pound sign (#) at the beginning of a line of code
indicates a comment line.

Reader Alert Conventions

This document may use the following conventions for reader alerts:

Means reader take note. Notes contain helpful suggestions or references to material not covered in the
manual.

Tip

Caution

Timesaver

Warning

Means the following information will help you solve a problem.

Means reader be careful. In this situation, you might do something that could result in equipment damage
or loss of data.

Means the described action saves time. You can save time by performing the action described in the
paragraph.

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. Statement 1071

SAVE THESE INSTRUCTIONS

Catalyst Digital Building Series Switch Hardware Installation Guide

viii

Preface

Obtaining Documentation and Submitting a Service Request

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/c/en/us/td/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.

Catalyst Digital Building Series Switch Hardware Installation Guide

ix

Obtaining Documentation and Submitting a Service Request

Preface

Catalyst Digital Building Series Switch Hardware Installation Guide

x

CHAPTER 1

Product Overview

The Cisco Catalyst Digital Building Series Switch is an Ethernet switch designed to enable wired Ethernet,
Power over Ethernet(PoE), and Universal Power Over Ethernet(UPOE) deployments for digitizing commercial
building subsystems, especially with applications such as Network Powered Lighting, HVAC controls, and
security. For simplicity, we will focus on the Network Powered Lighting use case in this guide to elaborate
the use of the switch. Network Powered Lighting refers to configuring IP and Ethernet LED-based luminaries
and sensors for smart lighting and building controls in an enterprise carpeted space.

Cisco Catalyst Digital Building Series Switches enable and drive this convergence of smart lighting and
building systems to IP over PoE technology.

Cisco Catalyst Digital Building Series Switches provide support for the following features:

Eight Fast Ethernet downlink ports

•

Two Gigabit Ethernet uplinks

•

Power over Ethernet Plus (PoE+) support up to 240W of PoE budget with the PoE/PoE+ switch model

•

and up to 480W of PoE budget with the UPOE switch model

Reduced power consumption and advanced energy management

•

RJ-45 and USB Micro-Type B console ports

•

File system support on USB Type A port

•

Switch Models, page 2

•

Front Panel, page 2

•

Rear Panel, page 11

•

Network Configurations, page 12

•

Catalyst Digital Building Series Switch Hardware Installation Guide

1

Switch Models

Switch Models

Table 1: Cisco Catalyst Digital Building Series Switch Models and Description

Product Overview

DescriptionSoftware ImageSwitch Model

Front Panel

LAN LiteCDB-8U

LAN LiteCDB-8P

This section describes the front panel components of a Catalyst Digital Building Series Switch.

Eight Fast Ethernet downlink UPOE ports; two 1-Gigabit
Ethernet uplink ports; 545W Power Supply.

Eight Fast Ethernet downlink PoE+ ports; two 1-Gigabit
Ethernet uplink ports; 280W Power Supply.

Catalyst Digital Building Series UPOE SwitchCatalyst Digital Building Series PoE/PoE+ Switch

Eight downlink Fast Ethernet UPOE portsEight downlink Fast Ethernet PoE+ ports

Two copper uplink Gigabit Ethernet portsTwo copper uplink Gigabit Ethernet ports

Mode buttonMode button

RJ-45 console portRJ-45 console port

USB micro-Type B (console) portUSB micro-Type B (console) port

Catalyst Digital Building Series Switch Hardware Installation Guide

2

USB Type A portUSB Type A port

LEDsLEDs

SD card slotSD card slot

Product Overview

Front Panel

Figure 1: Front Panel of a Catalyst Digital Building Series PoE/PoE+ Switch

SD card slot6Downlink PoE+ ports1

Downlink port Data and PoE LEDs7Uplink Gigabit Ethernet ports2

Uplink port data LEDs8USB micro - Type B (console) port3

System LEDs9USB Type A port4

Mode button10RJ-45 Console port5

Catalyst Digital Building Series Switch Hardware Installation Guide

3

PoE, PoE+ and UPOE Ports

Figure 2: Front Panel of a Catalyst Digital Building Series UPOE Switch

Product Overview

PoE, PoE+ and UPOE Ports

The ports on the PoE/PoE+ switch provide PoE+ support for devices compliant with IEEE 802.3af and IEEE

802.3at and also provide PoE support for Cisco IP Phones and LED Luminaries. The PoE switch ports are
Power Source equipment (PSE) capable and source power to PD devices (Luminaries) connected to the

Catalyst Digital Building Series Switch Hardware Installation Guide

4

SD Card Slot6Downlink UPOE ports1

Downlink port data and PoE LEDs7Uplink Gigabit Ethernet ports2

Uplink port data LEDs8USB micro-Type B (console) port3

System LEDs9USB Type A port4

Mode button10RJ-45 Console port5

Product Overview

downlink ports. The switch can source PoE power of up to 30W per port, with a total budget of 240W for the
entire switch.

The UPOE ports provide support for Cisco UPOE and each port can deliver a power of up to 60W, with a
total budget of 480W for the entire switch.

The PoE and UPOE ports use RJ-45 connectors with Ethernet pinouts. Luminaries are connected to PoE and
UPOE switches using CAT5/CAT6 cables and they are controlled through IP.

Gigabit Uplink Ports

The copper gigabit uplink ports support speed up to 1000Mbps.

Console Ports

The console ports connect the switch to a PC running Microsoft Windows or to a terminal server.

RJ-45 console port (EIA/TIA-232). The RJ-45 console port connection uses an RJ-45-to-DB-9 female

•

cable.

Gigabit Uplink Ports

USB micro-Type B console port (5-pin connector).

•

If you use the USB micro-Type B console port, the Cisco Windows USB device driver must be installed on
any PC connected to the console port (for operation with Microsoft Windows). Mac OS X or Linux do not
require special drivers.

This illustration shows a 5-pin micro-Type B USB port.

Figure 3: USB Micro-Type B Port

With the Cisco Windows USB device driver, you can connect and disconnect the USB cable from the console
port without affecting Windows HyperTerminal operations.

The console output always goes to both the RJ-45 and the USB console connectors, but the console input is
active on only one of the console connectors at any one time. The USB console takes precedence over the
RJ-45 console. When a cable is connected into the USB console port, the RJ-45 console port becomes inactive.
Conversely, when the USB cable is disconnected from the USB console port, the RJ-45 port becomes active.

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.

Catalyst Digital Building Series Switch Hardware Installation Guide

5

USB Type A Port

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 Software Configuration Guide, Cisco IOS Release 15.2(5)EX (Cisco Catalyst
Digital Building Switches).

USB Type A Port

The USB Type A port provides access to external USB flash devices (also known as thumb drives or USB
keys) and to USB Bluetooth devices.

The port supports USB flash drives with capacities from 128 MB to 8 GB (USB devices with port densities
of 128 MB, 256 MB, 1 GB, 4 GB, and 8 GB are supported). 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.

The port supports USB Bluetooth devices. The USB Bluetooth device acts as a Bluetooth host and serves as
either a serial port or a management port connection. You can pair it with your Bluetooth smart phone, laptop,
or tablet.

Product Overview

SD Flash Memory Card Slot

The switch supports a Secure Digital(SD) flash memory card that makes it possible to replace a failed switch
without reconfiguring the new switch. A cover protects the flash card and holds the card firmly in place. The
cover is hinged and closed with a captive screw. This prevents the card from becoming loose and protects
against shock and vibration.

Up to 2GB of Cisco SD memory card is supported.

LEDs

You can use the switch system and port LEDs to monitor switch activity and performance. The LEDs remain
off by default when switch is powered on. Press the Mode button to turn on the LEDs.

Catalyst Digital Building Series Switch Hardware Installation Guide

6

Product Overview

LEDs

This figure shows the switch LEDs and the Mode button that you use to select a port mode.

Figure 4: Switch LEDs and Mode Button

STATUS LED5Downlink Port PoE LEDs1

MODE button6Downlink Port Data LEDs2

POWER SAVE LED7Uplink Port Data LEDs3

SYSTEM LED8SPEED LED4

Catalyst Digital Building Series Switch Hardware Installation Guide

7

LEDs

Downlink Port Data LEDs

RJ-45 ports have port LEDs. These LEDs, as a group or individually, provide information about the switch
and about the individual ports.

Product Overview

DescriptionColor

No link or port was administratively shut down.Off

Link present but is not sending or receiving data.Green

Activity. Port is sending or receiving data.Blinking green

Blinking green-amber

Amber

Downlink Port PoE LEDs

Blinking amber

Link fault. Error frames can affect connectivity, and errors such as excessive
collisions, CRC errors, and alignment and jabber errors are monitored for link
faults.

Port is blocked by Spanning Tree Protocol (STP) and is not forwarding data.
After a port is reconfigured, the port LED is amber for up to 30 seconds as
STP searches for loops.

DescriptionColor

PoE is not enabled.Off

PoE is enabled. Ports are functioning correctly.Green

PoE port has been denied power.

•

PoE port has a PoE fault.

•

Uplink Port Data LEDs

Catalyst Digital Building Series Switch Hardware Installation Guide

8

DescriptionLED Color

No link or port was administratively shut down.Off

Product Overview

LEDs

DescriptionLED Color

Link present but is not sending or receiving data.Green

Activity. Port is sending or receiving data.Blinking green

System LED

Blinking green-amber

Amber

System StatusColor

System is not powered on.Off

System is operating normally.Green

System is receiving power but is not operating properly.Amber

Link fault. Error frames can affect connectivity, and errors such as excessive
collisions, CRC errors, and alignment and jabber errors are monitored for
link faults.

Port is blocked by Spanning Tree Protocol (STP) and is not forwarding data.
After a port is reconfigured, the port LED is amber for up to 30 seconds as
STP searches for loops.

Status LED

Green

DescriptionColor

Status Mode disabled.Off

Status Mode Enabled. Port LEDs function as described in Downlink Port Data LEDs
and Uplink Port Data LEDs section.

Catalyst Digital Building Series Switch Hardware Installation Guide

9

LEDs

Speed LED

Product Overview

DescriptionColor

Speed Mode Disabled.Off

Green

Power Save LED

Mode Button

The mode button is used for resetting the switch, entering express setup mode, selecting or changing an LED
mode, and manually waking up the switch from hibernation mode.

In Cisco Catalyst Digital Building series switches, LEDs are normally turned off to save power. When the
mode button is pressed, the LEDs turn on for a set period (60 seconds) before they turn off again to save
power. This can be overridden by a configuration parameter which alters the default 60 second timeout or
disables LED power savings completely. All LEDs are affected by this function except the System LED,
which only dims and does not turn off completely.

Speed Mode Active. Port LEDs indicate port speed as follows:

Downlink: Green = 100 Mbps, Amber = 10 Mbps, Off = No Link

•

Uplink: Green = 1000 Mbps, Amber = 100 Mbps, Off = 10 Mbps or No Link

•

DescriptionColor

System is running normallyOff

System is in a deep sleep mode.Green

Catalyst Digital Building Series Switch Hardware Installation Guide

10

ActionDurationSystem State

AnyLEDs Off

AnyLEDs On

Hold until bootloader completesBootloader Active

Activates the LEDs for 60 seconds,
then returns the LEDs to Off State.
System LED dims but does not turn
off.

Toggle between "Stat" and "Speed"
LED modes. These modes only
affect the port data LEDs.

Stops autoboot and remains at
bootloader prompt.

Product Overview

Rear Panel

ActionDurationSystem State

Enters Day 0 configuration.Hold for more than 3 secondsIOS Active, No Configuration

Stored

Rear Panel

Hold for more than 1 secondSwitch in Deep Sleep

Figure 5: Rear Panel of Catalyst Digital Building Series Switch

Switch wakes up to full power
mode.

Note

Proprietary power connector1

You should mount the switch in one of the following mount accessories and complete the electrical
installation to power on the switch:

Flexible mount with IEC C14 power junction box (CDB-MNT-FLEX-C14)

•

• Flexible mount with direct-wired junction box (CDB-MNT-FLEX-DIR) — Plenum rated

5RU 19" rack mount chassis for up to 5 switches (CDB-MNT-RACK5-C14)

•

Catalyst Digital Building Series Switch Hardware Installation Guide

11

Network Configurations

Network Configurations

See the switch software configuration guide for network configuration concepts and examples of using the
switch to create dedicated network segments and interconnecting the segments through Fast Ethernet and
Gigabit Ethernet connections.

Product Overview

Catalyst Digital Building Series Switch Hardware Installation Guide

12

Switch Installation

This chapter contains these topics:

Safety Warnings, page 13

•

Box Contents, page 15

•

Installation Guidelines, page 18

•

Mounting the Switch, page 20

•

Installing the Power Cord Retainer, page 75

•

10/100 Port Connections, page 79

•

Safety Warnings

This section includes the warning statements relating to basic installation. Read this section before you start
the installation procedure.

CHAPTER 2

Warning

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 1004Warning

Catalyst Digital Building Series Switch Hardware Installation Guide

13

Safety Warnings

Switch Installation

Warning

Warning

Warning

To prevent bodily injury when mounting or servicing this unit in a rack, you must take special precautions
to ensure that the system remains stable. The following guidelines are provided to ensure your safety:

This unit should be mounted at the bottom of the rack if it is the only unit in the rack.

•

When mounting this unit in a partially filled rack, load the rack from the bottom to the top with the

•

heaviest component at the bottom of the rack.

If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing

•

the unit in the rack.

Statement 1006

This equipment must be grounded. Never defeat the ground conductor or operate the equipment in the
absence of a suitably installed ground conductor. Contact the appropriate electrical inspection authority
or an electrician if you are uncertain that suitable grounding is available. Statement 1024

Only trained and qualified personnel should be allowed to install, replace, or service this equipment.

Statement 1030

Warning

Warning

Warning

Warning

Warning

Do not use this product near water; for example, near a bath tub, wash bowl, kitchen sink or laundry tub,
in a wet basement, or near a swimming pool. Statement 1035

Ultimate disposal of this product should be handled according to all national laws and regulations.

Statement 1040

This product requires short-circuit (overcurrent) protection, to be provided as part of the building installation.
Install only in accordance with national and local wiring regulations.Statement 1045

When installing or replacing the unit, the ground connection must always be made first and disconnected
last. Statement 1046

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) up to 10,000 ft and <122°F(50°C) up to 5000 ft.

Statement 1047

Catalyst Digital Building Series Switch Hardware Installation Guide

14

Switch Installation

Box Contents

Warning

Warning

Warning

Do not disconnect connections to this equipment unless power has been removed or you have verified
that the area is nonhazardous. Secure any external connections that mate to this equipment by using screws,
sliding latches, threaded connectors, or other means provided with this product.Statement 1062

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. Statement 1071

Voltages that present a shock hazard may exist on Power over Ethernet (PoE) circuits if interconnections
are made using uninsulated exposed metal contacts, conductors, or terminals. Avoid using such
interconnection methods, unless the exposed metal parts are located within a restricted access location
and users and service people who are authorized within the restricted access location are made aware of
the hazard. A restricted access area can be accessed only through the use of a special tool, lock and key
or other means of security. Statement 1072

No user-serviceable parts inside. Do not open. Statement 1073Warning

Installation of the equipment must comply with local and national electrical codes. Statement 1074Warning

Hot surface. Statement 1079Warning

Warning

Explosion Hazard—The area must be known to be nonhazardous before installing, servicing, or replacing
the unit.Statement 1082

Box Contents

You will receive a Cisco Catalyst Digital Building UPOE (CDB-8U) or a PoE+ (CDB-8P) Switch. Each
switch is shipped in a separate box.

To install the switch, you will require one of the mounting accessories listed below. You can order them when
you order your switch, or you can order them later from your Cisco representative.

Flexible mount with IEC C14 power junction box (CDB-MNT-FLEX-C14)

•

• Flexible mount with direct-wired junction box (CDB-MNT-FLEX-DIR) — Plenum-rated

5RU 19" rack mount chassis for up to 5 switches (CDB-MNT-RACK5-C14)

•

Catalyst Digital Building Series Switch Hardware Installation Guide

15

Mounting Accessories

Switch Installation

Note

Only flexible mount with direct-wired junction box (CDB-MNT-FLEX-DIR) is plenum-rated and is
suitable for installation in plenum space. CDB-MNT-FLEX-DIR is compliant with IEC 60950-1 standard.

IEC 60950-1 Standard for Plenum Space Installation

Suitable for use in environmental air space in
accordance with Section 300-22(C) of the National
Electrical Code, and Sections 2-128, 12-010(3) and
12-100 of the Canadian Electrical Code, Part 1, CSA
C22.1.

Mounting Accessories

This section lists the contents of the shipping box for mounting accessories.

Figure 6: Box Contents - Flexible mount with IEC C14 power junction box

FrenchEnglish

Peut être utilisé dans des gaines transportant de l'air
traité, conformément à la Section 300-22(C) du
National Electrical Code et aux articles 2-128,
12-010(3) et 12-100 du Code Canadien de l'électricité,
Première partie, CSA C22.1.

Catalyst Digital Building Series Switch Hardware Installation Guide

16

Compliance documentation (78-17985-01)4CDB-MNT-FLEX-C141

Switch Installation

Mounting Accessories

2

(700-112420-01)

3

6Four 1/4" mounting screws

(48-101572-01)

Power cord retainer and country-specific power cord are supplied in a separate accessory kit, if ordered.Note

Figure 7: Box Contents - Flexible mount with direct-wired junction box

(Optional) Country-specific power cord5Two U-shaped mounting brackets

(Optional) Power cord retainer
(700-33972-01)

2

(700-112420-01)

3CDB-MNT-FLEX-DIR1

Four 1/4" mounting screws
(48-101572-01)

Compliance documentation (78-17985-01)4Two U-shaped mounting brackets

Catalyst Digital Building Series Switch Hardware Installation Guide

17

Installation Guidelines

Figure 8: Box Contents - 5RU 19" Rack mount chassis

Switch Installation

2

screws (48-0523-01)

3

screws (48-0627-01)

Country-specific power cord can be ordered separately, if required.Note

Installation Guidelines

Supported Hardware

Bluetooth dongles with the following chipset are supported :

•

Five power cord retainers (700-33972-01)5CDB-MNT-RACK5-C141

6Eight number-12 Phillips pan-head

Compliance documentation
(78-17985-01)

Two ground screws (48-0828-01)7Eight number-10 Phillips pan-head

(Optional) Country-specific power cord8Dual-hole ground lug (32-0619-01)4

Catalyst Digital Building Series Switch Hardware Installation Guide

18

Switch Installation

Installation Guidelines

Bluetooth VersionChipset ManufacturerChipset

CSR8510

Qualcomm/Cambridge Silicon Radio
(CSR)

Bluetooth 4.0 and above
Dual-Mode Dongle

BroadcomBCM20702

USB flash drives with capacities from 128MB to 8GB are supported.

•

Up to 2GB of Cisco SD memory card is supported.

•

General Guidelines

When determining where to install the switch, verify that these guidelines are met:

The operating environment is within the ranges listed in Technical Specifications .

•

Clearance to the switch front and rear panel meets these conditions:

•

Front-panel LEDs can be easily read.

◦

Access to ports is sufficient for unrestricted cabling.

◦

AC power cord can reach from the AC power outlet to the connector on the switch mount.

◦

At least 3" clearance above cooling fins is provided.

◦

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.

Airflow around the switch is unrestricted.

•

For 10/100 and 1-Gigabit Ethernet ports, the cable length from a switch to a connected device cannot

•

exceed 328 feet (100 meters).

Rack Mounting Guidelines

5RU 19" rack mount chassis (CDB-MNT-RACK5-C14) can only be installed in standard 19-inch racks.

•

19" rack mount chassis can be installed with wiring box up or down for cable routing.

•

A gap of 2 RU must be provided between each rack unit for ventilation unless forced air is provided top

•

to bottom in the rack.

The rack mount chassis can have a mix of CDB-8P and CDB-8U units, as long as power cords are

•

plugged into a power source with sufficient ampacity.

Switches will power up on insertion. Remove and re-insert to power cycle when direct wired, or cycle

•

at breaker.

Switches can be hot-swapped.

•

Catalyst Digital Building Series Switch Hardware Installation Guide

19

Mounting the Switch

Switch Installation

Flexible Mounting Guidelines

Flexible mounting requires a strut channel for mounting the assembly. Strut channel is a structural system

•

used by electricians, HVAC professionals, plumbers, etc. to mount mechanical and electrical components
in buildings.

Bolts and screws to attach the mount to the strut channel are not supplied in the accessory kit. You need

•

to obtain these from the manufacturer of the strut channel. The bolt used to attach the mount to the strut
channel must match the strut nut.

One flexible mount is required per switch.

•

See Prohibited Mounting Orientations section for unsupported mounting orientations. Following is a

•

list of prohibited mounting orientations. These will cause overheating.

Horizontal stacking

•

Port facing down

•

Ports facing up

•

Wall Mounting - The complete assembly of the flexible mount, mounting brackets and the switch weighs

•

15 lbs for the wall mount case. When mounted directly on a surface, care must be taken to choose
fasteners that can safely hold the switch and mounting hardware, which weighs 15 lbs (6.8 kg), under
all use conditions.

Maintain 3-inch of space to any surface above the flexible mount to allow proper cooling.

•

Only a trained and qualified electrician should be allowed to complete the wiring of the direct-wired

•

junction box (CDB-MNT-FLEX-DIR).

All power connection wiring should conform to the rules and regulations in the National Electrical Code

•

(NEC), as well as local codes.

Switches will power up on insertion. Remove and re-insert to power cycle when direct wired, or cycle

•

at breaker.

Switches can be hot-swapped.

•

Mounting the Switch

Flexible Mounting

The Catalyst Digital Building Series Switch offers multiple flexible mounting options. Installing the switch
in a flexible mount requires either of the following :

Flexible mount with IEC C14 power junction box (CDB-MNT-FLEX-C14)

•

• Flexible mount with direct-wired junction box (CDB-MNT-FLEX-DIR) — Plenum-rated

Catalyst Digital Building Series Switch Hardware Installation Guide

20

Switch Installation

Flexible Mounting

Flexible Mount with IEC C14 power junction box

Figure 9: Flexible mount with IEC C14 power junction box - Front view

Figure 10: Flexible mount with IEC C14 power junction box - Rear view

IEC C14 power connector1

Catalyst Digital Building Series Switch Hardware Installation Guide

21

Flexible Mounting

Switch Installation

Flexible mount with direct-wired junction box

Figure 11: Flexible mount with direct-wired junction box - Front view

Figure 12: Flexible mount with direct-wired junction box - Rear view

Direct-wired junction box1

1/2" knockout2

3/4" knockout3

The mounting procedure includes two types of installations :

Catalyst Digital Building Series Switch Hardware Installation Guide

22

Switch Installation

Flexible Mounting

Physical Installation - Includes horizontal mounting, vertical mounting and wall mounting

•

Electrical Installation - Includes connecting the switch to a power source

•

The different types of mounting are described in detail in the sections below. You can use these mounting
positions to install the switch in a flexible mount.

Horizontal Mounting

•

Vertical Mounting

•

Wall Mount

•

Figure 13: Mounting Orientations for Cisco Catalyst Digital Building Series Switch

Catalyst Digital Building Series Switch Hardware Installation Guide

23

Flexible Mounting

Horizontal Mounting

Horizontal Mounting can be done in two different positions :

Horizontal Mounting - Undermount

To install the Catalyst Digital Building Series Switch in a flexible mount in horizontal undermount orientation,
follow these steps :

Switch Installation

Note

If you are using the flexible mount with direct-wired junction box (CDB-MNT-FLEX-DIR), refer to the

Electrical Installation section before you start the installation procedure.

Before You Begin

Refer to Installation Guidelines section.

•

Refer to Electrical Installation section if you are using the flexible mount with direct-wired junction box

•

(CDB-MNT-FLEX-DIR).

Review the following illustrations and tables.

•

Figure 14: Mounting Bracket Detail

Catalyst Digital Building Series Switch Hardware Installation Guide

24

1/4" hole for attaching to strut channel1

3/8" hole for attaching to strut channel2

Mounting screw holes3

Switch Installation

Flexible Mounting

Figure 15: Strut Channel Nut Attachment Detail

Strut channel nut1

U-shaped mounting bracket2

Bolt matching the strut nut3

Strut channel nut slides is inserted into the channel and held by a spring or a plastic cone.

•

The bracket acts as an integrated washer. So, strut washer is not required.

•

Matching bolt is fed from below into the strut channel nut.

•

Catalyst Digital Building Series Switch Hardware Installation Guide

25

Flexible Mounting

Switch Installation

Procedure

Step 1
Step 2

Place the flexible mount horizontally on a flat surface.

Align the mounting holes on the bracket to the holes on the flexible mount and attach them to the mount with
the 1/4" mounting screws supplied.

Figure 16: Attaching mounting brackets to the flexible mount

Catalyst Digital Building Series Switch Hardware Installation Guide

26

Switch Installation

Flexible Mounting

Step 3

Position the assembly as shown in the figure. Align one of the screw holes — 1/4" or 3/8" — of the mounting
bracket to the strut nut hole on the strut channel and secure the bracket to the strut channel using a bolt matching
to the strut nut.

Note

The bolt must match the strut
nut.

Catalyst Digital Building Series Switch Hardware Installation Guide

27

Flexible Mounting

Switch Installation

Repeat the step to attach the other bracket to the strut channel.

Figure 17: Attaching flexible mount assembly to strut channel

Note

In the following figure, 3/8" hole is used to attach the assembly to the strut channel. You can also
use 1/4" hole to attach the assembly to the strut channel.

Catalyst Digital Building Series Switch Hardware Installation Guide

28

Switch Installation

Flexible Mounting

Strut channel nut1

U-shaped mounting bracket2

Bolt matching the strut nut3

Step 4

Connect to a power source.

To connect the assembly which uses flexible mount with direct-wired junction box

•

(CDB-MNT-FLEX-DIR) to a power source, use an armored cable. See Electrical Installation section.

CDB-MNT-FLEX-DIR accepts 100V – 277V AC Input.

To connect the assembly which uses flexible mount with IEC C14 power junction box

•

(CDB-MNT-FLEX-C14) to a power source, use country-specific power cord.

Catalyst Digital Building Series Switch Hardware Installation Guide

29

Flexible Mounting

Switch Installation

CDB-MNT-FLEX-C14 accepts 100V – 240V AC Input.

Step 5

Slide the switch into the flexible mount in a front mounting position as shown in the figure and tighten thumb
screws to secure the switch to flexible mount.

Warning

Switches require at least 3 inches of space above the heatsink fins for proper cooling. Do not
stack multiple switches on top of each other in horizontal mounting orientation. To collocate
multiple switches, use top vertical mounting orientation as described in Top Vertical Mount .

Figure 18: Inserting switch into flexible mount assembly

Horizontal Mounting - Overmount

To install the Catalyst Digital Building Series Switch in a flexible mount in horizontal overmount orientation,
follow these steps :

Note

If you are using the flexible mount with a direct-wired junction box (CDB-MNT-FLEX-DIR), refer to the

Electrical Installation section before you start the installation procedure.

Before You Begin

Refer to Installation Guidelines section.

•

Refer to Electrical Installation section if you are using the flexible mount with direct-wired junction box

•

(CDB-MNT-FLEX-DIR).

Catalyst Digital Building Series Switch Hardware Installation Guide

30

Switch Installation

Review the following illustrations and tables.

•

Figure 19: Mounting Bracket Detail

Flexible Mounting

1/4" hole for attaching to strut channel1

3/8" hole for attaching to strut channel2

Mounting screw holes3

Catalyst Digital Building Series Switch Hardware Installation Guide

31

Flexible Mounting

Switch Installation

Figure 20: Strut Channel Nut Attachment Detail

Strut channel nut1

U-shaped mounting bracket2

Bolt matching the strut nut3

Strut channel nut slides is inserted into the channel and held by a spring or a plastic cone.

•

The bracket acts as an integrated washer. So, strut washer is not required.

•

Matching bolt is fed from below into the strut channel nut.

•

Catalyst Digital Building Series Switch Hardware Installation Guide

32

Switch Installation

Flexible Mounting

Procedure

Step 1
Step 2

Place the flexible mount horizontally on a flat surface.

Align the mounting holes on the bracket to the holes on the flexible mount and attach them to the mount with
the 1/4" mounting screws supplied.

Figure 21: Attaching mounting brackets to the flexible mount

Catalyst Digital Building Series Switch Hardware Installation Guide

33

Flexible Mounting

Switch Installation

Step 3

Position the assembly as shown in the figure. Align one of the screw holes — 1/4" or 3/8" — of the mounting
bracket to the strut nut hole on the strut channel and secure the bracket to the strut channel using a bolt matching
to the strut nut.

Note

The bolt must match the strut
nut.

Catalyst Digital Building Series Switch Hardware Installation Guide

34

Switch Installation

Flexible Mounting

Repeat the step to attach the other bracket to the strut channel.

Figure 22: Attaching flexible mount assembly to strut channel

Step 4

Note

In the following figure, 3/8" hole is used to attach the assembly to the strut channel. You can also
use 1/4" hole to attach the assembly to the strut channel.

Connect to a power source.

To connect the assembly which uses flexible mount with direct-wired junction box

•

(CDB-MNT-FLEX-DIR) to a power source, use an armored cable. See Electrical Installation section.

CDB-MNT-FLEX-DIR accepts 100V – 277V AC Input.

To connect the assembly which uses flexible mount with IEC C14 power junction box

•

(CDB-MNT-FLEX-C14) to a power source, use country-specific power cord.

CDB-MNT-FLEX-C14 accepts 100V – 240V AC Input.

Step 5

Slide the switch into the flexible mount in a front mounting position as shown in the figure and tighten thumb
screws to secure the switch to flexible mount.

Catalyst Digital Building Series Switch Hardware Installation Guide

35

Flexible Mounting

Switch Installation

Warning

Switches require at least 3 inches of space above the heatsink fins for proper cooling. Do not
stack multiple switches on top of each other in horizontal mounting orientation. To collocate
multiple switches, use top vertical mounting orientation as described in Top Vertical Mount .

Figure 23: Inserting switch into flexible mount assembly

Vertical Mounting

Vertical Mounting can be done in two different positions:

Fixed Vertical Mount

To install a Catalyst Digital Building Series Switch in a flexible mount in fixed vertical mounting orientation,
follow these steps :

Note

If you are using the flexible mount with a direct-wired junction box (CDB-MNT-FLEX-DIR), refer to the

Electrical Installation section before you start the installation procedure.

Before You Begin

•

•

Refer to Installation Guidelines section.

Refer to Electrical Installation section if you are using the flexible mount with direct-wired junction box
(CDB-MNT-FLEX-DIR).

Catalyst Digital Building Series Switch Hardware Installation Guide

36

Switch Installation

Review the following illustrations and tables.

•

Figure 24: Mounting Bracket Detail

Flexible Mounting

1/4" hole for attaching to strut1

3/8" hole for attaching to strut2

Mounting screw holes3

Catalyst Digital Building Series Switch Hardware Installation Guide

37

Flexible Mounting

Switch Installation

Figure 25: Strut Channel Nut Attachment Detail

Strut channel nut1

U-shaped mounting bracket2

Bolt matching the strut nut3

Strut channel nut slides is inserted into the channel and held by a spring or a plastic cone.

•

The bracket acts as an integrated washer. So, strut washer is not required.

•

Matching bolt is fed from below into the strut channel nut.

•

Catalyst Digital Building Series Switch Hardware Installation Guide

38

Switch Installation

Flexible Mounting

Procedure

Step 1
Step 2

Place the flexible mount horizontally on a flat surface.

Align mounting brackets to both sides of the flexible mount and attach them to the mount with the 1/4"
mounting screws supplied.

Figure 26: Attaching mounting brackets to the flexible mount

Catalyst Digital Building Series Switch Hardware Installation Guide

39

Flexible Mounting

Switch Installation

Step 3

Position the assembly vertically as shown in the figure. Align one of the screw holes — 1/4" or 3/8" — of the
mounting bracket to the strut nut hole on the strut channel and secure the bracket to the strut channel using a
bolt matching to the strut nut.

Note

The bolt must match the strut
nut.

Repeat the step to attach the other bracket to the strut channel.

Catalyst Digital Building Series Switch Hardware Installation Guide

40

Switch Installation

Flexible Mounting

Figure 27: Attaching flexible mount assembly to strut channel

Note

In the following figure, 3/8" hole is used to attach the assembly to the strut channel. You can also
use 1/4" hole to attach the assembly to the strut channel.

Step 4

Connect to a power source.

To connect the assembly which uses flexible mount with direct-wired junction box

•

(CDB-MNT-FLEX-DIR) to a power source, use an armored cable. See Electrical Installation section.

CDB-MNT-FLEX-DIR accepts 100V – 277V AC Input.

To connect the assembly which uses flexible mount with IEC C14 power junction box

•

(CDB-MNT-FLEX-C14) to a power source, use country-specific power cord.

CDB-MNT-FLEX-C14 accepts 100V – 240V AC Input.

Step 5

Slide the switch into the flexible mount in a front mounting position as shown in the figure and tighten thumb
screws to secure the switch to flexible mount.

Catalyst Digital Building Series Switch Hardware Installation Guide

41

Flexible Mounting

Switch Installation

Warning

Maintain 3-inch clearance from top of the flex mount to nearest surface to ensure proper cooling.
Do not stack multiple switches on top of each other in the fixed vertical mounting orientation.
To collocate multiple switches, use top vertical mounting orientation as described in Top Vertical

Mount .

Figure 28: Inserting switch into flexible mount assembly

Top Vertical Mount

To install a single Catalyst Digital Building Series Switch in a flexible mount in top vertical mounting
orientation, follow these steps :

Catalyst Digital Building Series Switch Hardware Installation Guide

42

Switch Installation

Flexible Mounting

Note

If you are using the flexible mount with a direct-wired junction box (CDB-MNT-FLEX-DIR), refer to the

Electrical Installation section before you start the installation procedure.

Before You Begin

Refer to Installation Guidelines section.

•

Refer to Electrical Installation section if you are using the flexible mount with direct-wired junction box

•

(CDB-MNT-FLEX-DIR).

Review the following illustrations and tables.

•

Figure 29: Mounting Bracket Detail

1/4" hole for attaching to strut1

3/8" hole for attaching to strut2

Mounting screw holes3

Catalyst Digital Building Series Switch Hardware Installation Guide

43

Flexible Mounting

Switch Installation

Figure 30: Strut Channel Nut Attachment Detail

Strut channel nut1

U-shaped mounting bracket2

Bolt matching the strut nut3

Strut channel nut slides is inserted into the channel and held by a spring or a plastic cone.

•

The bracket acts as an integrated washer. So, strut washer is not required.

•

Matching bolt is fed from below into the strut channel nut.

•

Catalyst Digital Building Series Switch Hardware Installation Guide

44

Switch Installation

Flexible Mounting

Procedure

Step 1
Step 2

Place the flexible mount vertically on a flat surface.

Align the mounting bracket to one side of the flexible mount and attach it to the mount with the 1/4" mounting
screws supplied.

Figure 31: Attaching mounting brackets to the flexible mount

Catalyst Digital Building Series Switch Hardware Installation Guide

45

Flexible Mounting

Switch Installation

Catalyst Digital Building Series Switch Hardware Installation Guide

46

Switch Installation

Flexible Mounting

Step 3

Position the assembly vertically as shown in the figure. Align one of the screw holes — 1/4" or 3/8" — of the
mounting bracket to the strut nut hole on the strut channel and secure the bracket to the strut channel using a
bolt matching to the strut nut.

Note

The bolt must match the strut
nut.

Repeat the step to attach the other bracket to the strut channel.

Figure 32: Attaching flexible mount assembly to strut channel

Note

In the following figure, 3/8" hole is used to attach the assembly to the strut channel. You can also
use 1/4" hole to attach the assembly to the strut channel.

Catalyst Digital Building Series Switch Hardware Installation Guide

47

Flexible Mounting

Switch Installation

Step 4

Connect to a power source.

To connect the assembly which uses flexible mount with direct-wired junction box

•

(CDB-MNT-FLEX-DIR) to a power source, use an armored cable. See Electrical Installation section.

CDB-MNT-FLEX-DIR accepts 100V – 277V AC Input.

To connect the assembly which uses flexible mount with IEC C14 power junction box

•

(CDB-MNT-FLEX-C14) to a power source, use country-specific power cord.

CDB-MNT-FLEX-C14 accepts 100V – 240V AC Input.

Step 5

Catalyst Digital Building Series Switch Hardware Installation Guide

48

Slide the switch into the flexible mount in a front mounting position.

Switch Installation

Flexible Mounting

Maintain 3-inch of space to any surface above the flex mount to allow proper cooling.Warning

Figure 33: Inserting switch into flexible mount assembly

Top Vertical Mount with two Flexible Mounts

Use the following procedure to attach two flexible mounts together.

Catalyst Digital Building Series Switch Hardware Installation Guide

49

Flexible Mounting

Switch Installation

Procedure

Step 1

Place the flexible mounts on a flat surface. Slide the four tabs at the bottom of the flexible mount into the
corresponding four slots of the other flexible mount at once. Following figures show the location of tabs and
slots on the flexible mount.

Figure 34: Tabs at the bottom of the flexible mount

Tabs1

Catalyst Digital Building Series Switch Hardware Installation Guide

50

Switch Installation

Flexible Mounting

Figure 35: Slots at the top of the flexible mount

Slots1

Catalyst Digital Building Series Switch Hardware Installation Guide

51

Flexible Mounting

Switch Installation

Figure 36: Joining two flexible mounts

Tabs and slots locked together1

Catalyst Digital Building Series Switch Hardware Installation Guide

52

Switch Installation

Flexible Mounting

Step 2

Align the brackets and attach them to the flexible mount using the 1/4" mounting screws.

Figure 37: Attaching two flexible mounts

Catalyst Digital Building Series Switch Hardware Installation Guide

53

Flexible Mounting

Switch Installation

Catalyst Digital Building Series Switch Hardware Installation Guide

54

Switch Installation

Flexible Mounting

Step 3

Position the assembly as shown in the figure. Align one of the screw holes — 1/4" or 3/8" — of the mounting
bracket to the strut nut hole on the strut channel and secure the bracket to the strut channel using a bolt matching
to the strut nut.

Note

The bolt must match the strut
nut.

Repeat the step to attach the other bracket to the strut channel.

Figure 38: Attaching combined flexible mount assembly to strut

Note

In the following figure, 3/8" hole is used to attach the assembly to the strut channel. You can also
use 1/4" hole to attach the assembly to the strut channel.

Catalyst Digital Building Series Switch Hardware Installation Guide

55

Flexible Mounting

Switch Installation

Step 4

Step 5

Connect to a power source.

To connect the assembly which uses flexible mount with direct-wired junction box

•

(CDB-MNT-FLEX-DIR) to a power source, use an armored cable. See Electrical Installation section.

CDB-MNT-FLEX-DIR accepts 100V – 277V AC Input.

To connect the assembly which uses flexible mount with IEC C14 power junction box

•

(CDB-MNT-FLEX-C14) to a power source, use country-specific power cord.

CDB-MNT-FLEX-C14 accepts 100V – 240V AC Input.

Slide the switch into the flexible mount in a front mounting position as shown in the figure and tighten thumb
screws to secure the switch to flexible mount.

Catalyst Digital Building Series Switch Hardware Installation Guide

56

Switch Installation

Flexible Mounting

Maintain 3-inch of space to any surface above the flex mount to allow proper cooling.Warning

Figure 39: Inserting switch into flexible mount assembly

You can combine multiple flexible mounts together using the above procedure.

Maximum recommended number of flexible mounts that you can combine together is five.Note

Catalyst Digital Building Series Switch Hardware Installation Guide

57

Flexible Mounting

Switch Installation

Top Vertical Mount with five Flexible Mounts

Wall Mount

Note

To install the Catalyst Digital Building Series Switch in a flexible mount on to a wall, follow these steps :

If you are using the flexible mount with a direct-wired junction box (CDB-MNT-FLEX-DIR), refer to the

Electrical Installation section before you start the installation procedure.

Before You Begin

Refer to Installation Guidelines section.

•

Refer to Electrical Installation section if you are using the flexible mount with direct-wired junction box

•

(CDB-MNT-FLEX-DIR).

Catalyst Digital Building Series Switch Hardware Installation Guide

58

Switch Installation

Review the following illustrations and tables.

•

Figure 40: Mounting Bracket Detail

Flexible Mounting

Step 1
Step 2

1/4" hole for attaching to strut channel or to a wall1

3/8" hole for attaching to strut channel or to a wall2

Mounting screw holes3

Procedure

Place the flexible mount horizontally on a flat surface.

Align mounting brackets to both sides of the flexible mount and attach them to the mount with the 1/4"
mounting screws supplied.

Figure 41: Attaching mounting brackets to the flexible mount

Catalyst Digital Building Series Switch Hardware Installation Guide

59

Flexible Mounting

Switch Installation

Catalyst Digital Building Series Switch Hardware Installation Guide

60

Switch Installation

Flexible Mounting

Step 3
Step 4

Drill two holes in the wall and insert mounting screws into the holes.

Position the assembly vertically as shown in the figure. Insert screws through the 3/8" or 1/4" hole of mounting
bracket into the wall and secure the assembly against the wall.

Figure 42: Attaching flexible mount assembly to the wall

Step 5

Connect to a power source.

To connect the assembly which uses flexible mount with direct-wired junction box

•

(CDB-MNT-FLEX-DIR) to a power source, use an armored cable. See Electrical Installation section.

CDB-MNT-FLEX-DIR accepts 100V – 277V AC Input.

To connect the assembly which uses flexible mount with IEC C14 power junction box

•

(CDB-MNT-FLEX-C14) to a power source, use country-specific power cord.

CDB-MNT-FLEX-C14 accepts 100V – 240V AC Input.

Step 6

Slide the switch into the flexible mount in a front mounting position as shown in the figure and tighten thumb
screws to secure the switch to flexible mount.

Catalyst Digital Building Series Switch Hardware Installation Guide

61

Flexible Mounting

Switch Installation

Note

The complete assembly of the flexible mount, mounting brackets and the switch weighs 15 lbs for
the wall mount case. When mounted directly on a surface, care must be taken to choose fasteners
that can safely hold the switch and mounting hardware, which weighs 15 lbs (6.8 kg), under all use
conditions.

Prohibited Mounting Orientations

Following mounting orientations are not allowed. These mounting orientations will cause overheating.

Figure 43: Prohibited Mounting Orientations

Catalyst Digital Building Series Switch Hardware Installation Guide

62

Switch Installation

Electrical Installation

Electrical installation requires connecting the switch to a power source. Each type of flexible mount has a
different procedure for completing electrical connections. These are explained below.

Flexible Mounting

Horizontal stacking1

Ports facing down2

Ports facing up3

Warning

All power connection wiring should conform to the rules and regulations in the National Electrical Code
(NEC), as well as any local codes.

Flexible Mount with Direct-Wired Junction Box

To complete wiring of the direct-wired junction box and to connect to a power source, follow these steps:

Only a trained and qualified electrician should be allowed to perform the procedure explained below.Note

Procedure

Step 1
Step 2
Step 3

Ensure that supply wiring is not energized prior to installing the flexible mount.

Remove screw from the direct-wired junction box to open the cover.

Determine mounting orientation and identify the desired wiring entry and exit points from the flexible mount’s
integrated junction box.

Step 4

Remove the appropriate knockout(s), either 1/2'' or 3/4" from the top or bottom, based on the connector type
employed in the installation.

Step 5
Step 6

Prepare an armored cable by stripping conductor ends approximately 1/2'' or 3/4".

After preparing the cable for connection, attach the cable to an approved connector and install the connector
in the appropriate knockout. Ensure that you leave a sufficient working length of wire inside the junction box.

Step 7
Step 8

Strip supply wires. Remove pre-stripped insulation from wires supplied inside the flexible mount.

Twist stripped ends of wires and secure the wires with a wire nut or other approved junction device. Supply
wires are color coded: Hot-black, Neutral-white, Ground-green/yellow. Verify that connections are made with
the appropriate supply wires as color codes may vary.

If you are combining multiple flexible mounts to form a single wiring raceway, remove the metal divider

•

plates that separate adjoining junction boxes. Ensure that you leave the divider plates in place on either
end of the raceway.

When you join two or more flexible mounts with direct-wired junction box, join the Hot, Neutral and

•

Ground supply wires of one wiring box to the corresponding Hot, Neutral and Ground supply wires of

Catalyst Digital Building Series Switch Hardware Installation Guide

63

Flexible Mounting

Switch Installation

the adjacent wiring box. This allows wiring multiple units to the same circuit with only a single supply
wire entry point.

Warning

When combining multiple switches on a single circuit, refer to the switch ampacity tables
below to verify that the number of switches is appropriate, given the circuit’s voltage and
ampacity. The switch ampacity table provides number of units that fit on a single circuit
(after derating to 80% of capacity), i.e. 15A circuit gives number of units possible when only
12A (80% of 15A) is used.

Table 2: Switch Ampacity Rating for Catalyst Digital Building Series PoE/PoE+ Switch

CDB-8P

Breaker
Rating:

Nominal
Input
Voltage

Maximum
Current
Consumption

Breaker
Derating
(80%):

2.68A115VAC
Circuit

1.34A230VAC
Circuit

1.16A277VAC
Circuit

Table 3: Switch Ampacity Rating for Catalyst Digital Building Series UPOE Switch

CDB-8U

Breaker
Rating:

30A20A15ACircuit

24A16A12ACircuit

964Units /

18129Units /

211410Units /

30A20A15ACircuit

Nominal
Input
Voltage

Catalyst Digital Building Series Switch Hardware Installation Guide

64

Maximum
Current
Consumption

5.18A115VAC

2.59A230VAC

2.18A277VAC

24A16A12ACircuit
Breaker
Derating
(80%):

432Units /
Circuit

964Units /
Circuit

1175Units /
Circuit

Switch Installation

Flexible Mounting

Step 9
Step 10
Step 11
Step 12

Secure all excess wire in the raceway. Ensure that no exposed conductors are present.

Secure junction box cover with screws.

Once all wiring is complete, re-energize the supply circuit.

Install switches into the mounts and check for proper operation.

Flexible Mount with IEC C14 Power Junction Box

To connect to a power source, follow these steps:

Procedure

Step 1
Step 2

Plug the IEC C14 power cord into the power connector on the flexible mount.

Plug the other end of the power cord into a power source.

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Rack Mounting

Rack Mounting

Installing the switch in a rack requires 5RU high 19-inch rack mount chassis (CDB-MNT-RACK5-C14).

Figure 44: Front View of Rack Mount Chassis

Switch Installation

Figure 45: Rear View of Rack Mount Chassis

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Switch Installation

Rack Mounting

Warning

To prevent bodily injury when mounting or servicing this unit in a rack, you must take special precautions
to ensure that the system remains stable. The following guidelines are provided to ensure your safety:

This unit should be mounted at the bottom of the rack if it is the only unit in the rack.

•

When mounting this unit in a partially filled rack, load the rack from the bottom to the top with the

•

heaviest component at the bottom of the rack.

If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing

•

the unit in the rack.

Statement 1006

Unit in the above warning statement refers to the rack mount chassis (CDB-MNT-RACK5-C14).Note

Use the following procedure to install a Catalyst Digital Building Series Switch in a rack.

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Rack Mounting

Switch Installation

Procedure

Step 1

Position the 19-inch 5RU rack mount chassis in the rack and align the mounting holes in the chassis with the
mounting holes in the rack. Secure the chassis using eight 10-32 or 12-24 screws to the rack post.

Figure 46: Installation of Rack Mount Chassis on a 19-inch Rack

You can also install the rack mount chassis upside down if required for cable routing.

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Switch Installation

Rack Mounting

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69

Rack Mounting

Switch Installation

Step 2

Plug country-specific power cords to power connectors on the rack mount chassis. Plug the other ends of the
power cords to a power source.

Figure 47:

Step 3

IEC C14 power connector1

Slide the switches into each of the rack unit slots in a front-mounting position and secure them to the rack
using the supplied screws as shown in the figure.

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Switch Installation

Rack Mounting

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71

Rack Mounting

Switch Installation

Warning

You must leave 2RU gap between each rack unit for ventilation unless forced air is provided top to bottom
in the rack.

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Switch Installation

Rack Mounting

What to Do Next

After installing the switch in the chassis, complete the installation process by grounding the chassis. See

Establishing the System Ground .

Establishing the System Ground

This section describes how to connect a system ground to the switch.

The system ground provides additional grounding for EMI shielding requirements and grounding for the low
voltage supplies.

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Rack Mounting

Switch Installation

Note

In all situations, grounding practices must comply with Section 250 of the National Electric Code (NEC)
requirements or local laws and regulations.

Required Tools and Equipment

To connect the system ground, you need the following tools and materials:

• Grounding lug—A two-hole standard barrel lug. Supports 6 AWG wire. Supplied as part of accessory

kit.

• Grounding screws—Two 8 mm pan-head screws. Supplied as part of the accessory kit.

• Grounding wire—Not supplied as part of accessory kit. The grounding wire should be sized according

to local and national installation requirements. The length of the grounding wire depends on the proximity
of the chassis to proper grounding facilities.

No. 1 Phillips screwdriver.

•

Crimping tool to crimp the grounding wire to the grounding lug.

•

Wire-stripping tool to remove the insulation from the grounding wire.

•

Connecting the System Ground

To establish an earth ground for the chassis, you must attach a grounding cable from the chassis’ grounding
lug to the rack.

Figure 48: Connecting the System Ground

Location of system ground lug1

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Switch Installation

Installing the Power Cord Retainer

Procedure

Step 1

Step 2
Step 3

Step 4
Step 5

Step 6

Use a wire-stripping tool to remove approximately 0.5 inch (12.7 mm) ± 0.02 inch (0.5 mm) of the covering
from the end of the grounding wire.

Insert the stripped end of the grounding wire into the open end of the grounding lug.

Crimp the grounding wire in the barrel of the grounding lug. Verify that the ground wire is securely attached
to the ground lug.

Place the grounding wire lug against the grounding pad, making sure that there is solid metal-to-metal contact.

Secure the grounding lug to the chassis with two grounding screws. Ensure that the grounding lug and the
grounding wire will not interfere with other switch hardware or rack equipment.

Connect the other end of the grounding wire to an appropriate grounding point at your site or to the rack.

Installing the Power Cord Retainer

The power cord retainer (PWR-CLP=) is optionally supplied as part of accessory kit with the 5RU 19" rack
mount chassis (CDB-MNT-RACK5-C14) and flexible mount with IEC C14 power junction box
(CDB-MNT-FLEX-C14).

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Installing the Power Cord Retainer

Procedure

Switch Installation

Step 1

Step 2

Choose the sleeve size of the power cord retainer based on the thickness of the cord. The smaller sleeve can
be snapped off and used for thin cords.

Slide the retainer around the AC power cord, and pass it around the loop on the switch.

Figure 49: Inserting the Retainer through the Lanced Loop (5RU 19" Rack Mount Chassis)

Figure 50: Inserting the Retainer through the Lanced Loop (Flexible mount with IEC C14 power junction box)

Sleeve for thinner power cords3AC power cord1

Loop4Power cord retainer2

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Switch Installation

Installing the Power Cord Retainer

Step 3

Slide the retainer through the first latch.

Figure 51: Sliding the Retainer Through the Latch (5RU 19" Rack Mount Chassis)

Figure 52: Sliding the Retainer Through the Latch (Flexible mount with IEC C14 power junction box)

Latch3AC power cord1

Smaller sleeve for thin power cords2

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Installing the Power Cord Retainer

Switch Installation

Step 4

Slide the retainer through the other latches to lock it.

Figure 53: Locking the Retainer (5RU 19" Rack Mount Chassis)

Figure 54: Locking the Retainer (Flexible mount with IEC C14 power junction box)

Latch3AC power cord1

Smaller sleeve for thin power cords2

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Switch Installation

10/100 Port Connections

Step 5

Step 6

(Optional) Use the small sleeve for thin power cords. Use the small sleeve to provide greater stability for thin
cords. Detach the sleeve, and slide it over the power cord.

Figure 55: Sleeve Around the Power Cord

AC power cord2Smaller sleeve for thin power cords1

Secure the AC power cord by pressing on the retainer.

Figure 56: Securing the Power Cord in the Retainer

10/100 Port Connections

The switch 10/100 port configuration changes to operate at the speed of the attached device. If the attached
ports do not support autonegotiation, you can manually set the speed and duplex parameters. Connecting
devices that do not autonegotiate or that have the speed and duplex parameters manually set can reduce
performance or result in no linkage.

To maximize performance, choose one of these methods for configuring the Ethernet ports:

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10/100 Port Connections

Let the ports autonegotiate both speed and duplex.

•

Set the interface speed and duplex parameters on both ends of the connection.

•

Switch Installation

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Troubleshooting

This chapter contains these topics:

Diagnosing Problems, page 81

•

Finding the Switch Serial Number, page 84

•

Diagnosing Problems

The LEDs on the front panel provide troubleshooting information about the switch. They show POST failures,
port-connectivity problems, and overall switch performance. You can also get statistics from Device Manager,
from the CLI, or from an SNMP workstation.

Switch POST Results

CHAPTER 3

POST failures are usually fatal. Contact your Cisco technical support representative if your switch does not
pass POST.

Switch LEDs

If you have physical access to the switch, look at the port LEDs for troubleshooting information about the
switch. See the LED section for a description of the LED colors and their meanings.

Switch Connections

Bad or Damaged Cable

Always examine the cable for marginal damage or failure. A cable might be just good enough to connect at
the physical layer, but it could corrupt packets as a result of subtle damage to the wiring or connectors. You
can identify this situation because the port has many packet errors or the port constantly flaps (loses and
regains link).

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Switch Connections

Ethernet Cables

Make sure that you have the correct cable for the connection.

Troubleshooting

Examine or exchange the copper or fiber-optic cable with a known, good cable.

•

Look for broken or missing pins on cable connectors.

•

Rule out any bad patch panel connections or media convertors between the source and the destination.

•

If possible, bypass the patch panel, or eliminate faulty media convertors (fiber-optic-to-copper).

Try the cable in another port or interface, if possible, to see if the problem follows the cable.

•

For Ethernet, use Category 3 copper cable for 10 Mb/s UTP connections. Use either Category 5, Category

•

5e, or Category 6 UTP for 10/100/1000 Mb/s connections.

For copper connections, determine if a crossover cable was used when a straight-through was required

•

or the reverse. Enable auto-MDIX on the switch, or replace the cable.

Link Status

Verify that both sides have link. A single broken wire or a shutdown port can cause one side to show link
even though the other side does not have link.

A port LED that is on does not guarantee that the cable is fully functional. The cable might have encountered
physical stress that causes it to function at a marginal level. If the port LED does not turn on:

Connect the cable from the switch to a known good device.

•

Ensure that both ends of the cable are connected to the correct ports.

•

Verify that both devices have power.

•

Verify that you are using the correct cable type.

•

Check for loose connections. Sometimes a cable appears to be seated, but is not. Disconnect the cable

•

and then reconnect it.

10/100 Port Connections

A port appears to malfunction:

Use the Mode button to show the status for all ports.

•

Use the show interfaces privileged EXEC command to see if the port is error-disabled, disabled, or

•

shutdown. Reenable the port if necessary.

10/100 Port Connections

A powered device connected to a PoE port does not receive power:

Use the Mode button to show the PoE status for all ports.

•

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Troubleshooting

Switch Performance

Use the show interfaces privileged EXEC command to see if the port is in error-disabled, disabled, or

•

shutdown. Reenable the port if necessary.

Verify that the power supply installed in the switch meets the power requirements of your connected

•

devices.

Verify that there is sufficient PoE power budget to provide power to the attached device. Use the show

•

power inline global configuration command to check on the available PoE power budget.

Verify the cable type. Many legacy powered devices, including older Cisco IP phones and access points

•

that do not fully support IEEE 802.3af, might not support PoE when connected to the switch by a
crossover cable. Replace the crossover cable with a straight-through cable.

Caution

Interface Settings

Verify that the interface is not disabled or powered off. If an interface is manually shut down on either side
of the link, it does not come up until you reenable the interface. Use the show interfaces privileged EXEC
command to see if the interface is error-disabled, disabled, or shutdown on either side of the connection. If
needed, reenable the interface.

Ping End Device

Ping from the directly connected switch first, and then work your way back port by port, interface by interface,
trunk by trunk, until you find the source of the connectivity issue. Make sure that each switch can identify
the end device MAC address in its Content-Addressable Memory (CAM) table.

Switch Performance

Noncompliant cabling or powered devices can cause a PoE port fault. Use only
standard-compliant cabling to connect Cisco prestandard IP Phones and wireless access
points or IEEE 802.3af-compliant devices. You must remove any cable or device that
causes a PoE fault.

Speed, Duplex, and Autonegotiation

If the port statistics show a large amount of alignment errors, frame check sequence (FCS), or late-collisions
errors, this might mean a speed or duplex mismatch.

A common issue with speed and duplex occurs when duplex and speed settings are mismatched between two
switches, between a switch and a router, or between the switch and a workstation or server. Mismatches can
happen when manually setting the speed and duplex or from autonegotiation issues between the two devices.

To maximize switch performance and to ensure a link, follow one of these guidelines when changing the
duplex or the speed settings.

Let both ports autonegotiate both speed and duplex.

•

Manually set the speed and duplex parameters for the interfaces on both ends of the connection.

•

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Finding the Switch Serial Number

If a remote device does not autonegotiate, use the same duplex settings on the two ports. The speed

•

parameter adjusts itself even if the connected port does not autonegotiate.

Autonegotiation and Network Interface Cards

Problems sometimes occur between the switch and third-party network interface cards (NICs). By default,
the switch ports and interfaces autonegotiate. Laptops or other devices are commonly set to autonegotiate,
yet sometimes autonegotiation issues occur.

To troubleshoot autonegotiation problems, try manually setting both sides of the connection. If this does not
solve the problem, there could be a problem with the firmware or software on your NIC. You can resolve this
by upgrading the NIC driver to the latest version.

Cabling Distance

If the port statistics show excessive FCS, late-collision, or alignment errors, verify that the cable distance
from the switch to the connected device meets the recommended guidelines.

Troubleshooting

Finding the Switch Serial Number

If you contact Cisco Technical Assistance, you need to know the switch serial number. You can also use the
show version privileged EXEC command to see the switch serial number.

Figure 57: Serial Number Location

Serial number of the switch is located at the bottom of the switch. Following illustration shows all the labels
at the bottom of the switch.

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Troubleshooting

Finding the Switch Serial Number

Model number5Compliance information1

Serial number6Country of Origin2

3

CLEI code7China Network Access

License information

MAC address8Laser label4

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Finding the Switch Serial Number

Troubleshooting

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Technical Specifications

This appendix contains these topics:

Physical Specifications, page 87

•

Environmental Specifications, page 87

•

Power Requirements, page 88

•

Physical Specifications

Physical Dimensions

APPENDIX A

Weight

Dimensions (H x D
x W)

• 9.65 lbs ( 4.38 kg) ( CDB-8U)

9.65 lbs ( 4.38 kg) ( CDB-8P)

•

2.75 x 8.72 x 11.07 in. ( 6.98 x 22.15 x 28.12 cm) (CDB-8U)

•

2.75 x 8.72 x 11.07 in. ( 6.98 x 22.15 x 28.12 cm) (CDB-8P)

•

Environmental Specifications

Environmental Ranges

Operating temperature

1 2

23 to 122°F (–5 to 50°C) up to 5000 ft (1524 m)

23 to 113°F (–5 to 45°C) up to 10,000 ft (3048 m)

-13º to 158ºF (-25º to 70ºC) up to 15,000 ft (4572 m)Storage temperature

5% to 90% (noncondensing)Operating relative humidity

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Power Requirements

Environmental Ranges

1

Minimum ambient temperature for cold start is 32°F (0°C)

2

Operation above 40°C may impact service life.

Power Requirements

Power Requirements

100 to 277 VAC (+/- 10%)

AC
input

CDB-8U

voltage

5.18A (115 VAC)

•

Technical Specifications

5% to 95% (noncondensing)Storage relative humidity

Up to 10,000 ft (3048 m)Operating altitude

Up to 15,000 ft (4572 m)Storage altitude

2.59A (230 VAC)

•

2.18A (277 VAC)

•

CDB-8P

2.68A (115 VAC)

•

1.34A (230 VAC)

•

1.16A (277 VAC)

•

Power
rating

3

Switch dissipation only (excludes PoE, which is dissipated at the end device)

• 600 W (CDB-8U)

3

310 W (CDB-8P)

•

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Connector and Cable Specifications

This appendix contains these topics:

Connector Specifications, page 89

•

Cables and Adapters, page 90

•

Connector Specifications

10/100/1000 Ports (Including PoE)

All 10/100/1000 ports use standard RJ-45 connectors and Ethernet pinouts.

Figure 58: 10/100/1000 Port Pinouts

APPENDIX B

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Cables and Adapters

Cables and Adapters

Cable Pinouts

Figure 59: Four Twisted-Pair Straight-Through Cable Schematic

Connector and Cable Specifications

Figure 60: Four Twisted-Pair Semi-Cross Cable Schematic

Figure 61: Two Twisted-Pair Straight-Through Cable Schematic

Figure 62: Two Twisted-Pair Crossover Cable Schematic

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