Cisco CDB-8U Switch

Cisco CDB-8U Switch

Condition: New in Box
Stock Status:Out of Stock
Product Code: CDB-8U
  • End-of-Sale and End-of-Life Information (EOL/EOS)

  • Release Date:
  • End-of-Sale Date:
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2020-06-08 :Updated

The Cisco Catalyst Digital Building Series Switches are purpose-built to accelerate the convergence of building automation systems onto a single, unified IP network. Modern facilities require connected infrastructure—including LED lighting, HVAC controls, security systems, and environmental sensors—to communicate reliably. These switches bridge the gap between traditional building management and enterprise IT networks, providing a robust platform that simplifies deployment while reducing overall operational costs.

By replacing proprietary low-voltage building networks with standardized Ethernet technology, these switches allow organizations to create smarter, safer, and more energy-efficient environments. They deliver reliable power and data connectivity directly to end devices, enabling real-time monitoring and centralized management across the entire smart building ecosystem.

Product overview

The Cisco Catalyst Digital Building Series consists of compact, fanless 8-port Fast Ethernet switches designed specifically for smart building deployments. The product portfolio includes two primary hardware models: the Cisco Catalyst CDB-8U switch and the Cisco Catalyst CDB-8P switch. Both models feature eight Fast Ethernet downlink ports alongside two 1 Gigabit Ethernet copper uplink ports, providing reliable connectivity for low-voltage building endpoints.

The key distinction between the products lies in their Power over Ethernet capabilities. The CDB-8U model supports Cisco Universal Power over Ethernet (UPOE), delivering up to 60W per port to accommodate higher-draw endpoints like advanced LED lighting fixtures and interactive building controls. The CDB-8P model provides Power over Ethernet Plus (PoE+), offering up to 30W per port for standard devices such as occupancy sensors, card readers, and access controllers. Both switches support total system power budgets of up to 240W or 480W depending on the deployed external power supply configuration.

Operating on Cisco IOS Software with the LAN Lite feature set, these switches offer versatile mounting options for placement in ceiling tiles, junction boxes, walls, or standard equipment racks. Their completely silent, fanless design allows them to be deployed directly inside occupied spaces or air plenum spaces without disturbing occupants or violating building safety codes.

Features and benefits

  • High-Power Density over Ethernet: Provides up to 60W per port via Cisco UPOE on the CDB-8U model and up to 30W per port via PoE+ on the CDB-8P model, eliminating the need for dedicated AC power outlets at endpoint locations.
  • Perpetual and Fast PoE: Maintains uninterrupted power delivery to connected endpoints during switch reboots and restores power within seconds of bootup before the operating system fully loads.
  • Silent, Fanless Operation: Designed with a thermal architecture that operates completely silently (0 dB noise level), making it ideal for deployment in noise-sensitive, open-office, or ceiling environments.
  • Plenum-Rated and Flexible Deployment: Features a compact form factor that is CMP plenum-rated for safe installation inside air-handling spaces, junction boxes, surface mounts, or DIN rail configurations.
  • Mobile Management via Bluetooth: Supports optional Bluetooth dongles to enable secure, wireless local management and configuration using mobile devices and dedicated apps.
  • Energy Management and TCO Reduction: Utilizes Cisco EnergyWise technology to monitor, measure, and manage power consumption across connected endpoints, driving down utility costs.
  • Enterprise Security: Implements robust Cisco IOS security capabilities, including IEEE 802.1X, MACsec encryption support, IP Source Guard, and Port Security to safeguard building control networks.
  • Centralized Network Automation: Integrates with Cisco DNA Center to deliver automated provisioning, network monitoring, and streamlined management across smart building deployments.
2020-06-08 :Updated

The Cisco Catalyst Digital Building Series Switch is the industry’s most power-efficient switch optimized for low-voltage Power over Ethernet (PoE) deployments and connectivity. The Digital Building Series Switch lays the foundation for powering and converging disparate building subsystems (lighting, HVAC, badging systems, metering, CCTV, access) onto a single IP network, thereby expanding, enabling, and accelerating the Cisco Digital Building ecosystem.

Product Overview

Companies today are going digital in an effort to enable new customer experiences, empower workforce innovation, and build innovative business models powered by analytics. Buildings are central to this digital transformation, as buildings are where most traditional businesses run and operate from. For enhanced experiences and improved efficiencies in buildings, owners and facilities managers realize the value in interconnecting various building sub-systems, including lighting, HVAC, security, sensors and audio-video systems, which have historically remained stagnant, disparate and difficult to manage. Although the convergence of these isolated sub-systems is fundamental to digital transformation, it has remained complex and costly to implement thus far.

This complex problem changes their quiet, fanless design and compact footprint, the Cisco Catalyst Digital Building Series Switches offer flexible mounting options and open up a variety of network design and connectivity options. They can be deployed to support a variety of use cases, and are leaps ahead of the last generation of lighting and building technology enablers. Figure 1 shows the Cisco Catalyst Digital Building Switch.

Cisco Catalyst Digital Building Switch - KR46029

Figure 1.       

Cisco Catalyst Digital Building Switch

Cisco Catalyst Digital Building Series Switch Highlights

●      8 fast Ethernet ports and 2 gigabit copper uplink ports, with line-rate forwarding performance

●      Universal Power over Ethernet (Cisco UPOE) and Power over Ethernet Plus (PoE+) support with up to 480W of power budget

●      Support for Layer 2 features, optimized for robust connectivity to lighting and other building IoT devices

●      Silent operation due to fanless design, which enhances reliability

●      Enhanced Limited Lifetime Warranty (E-LLW)

Product Features and Benefits

The Cisco Catalyst Digital Building Series Switch is the industry’s first purpose-built switch optimized for powering low voltage LED lighting and digital building systems with many unique features. Unlike unmanaged IoT switches, it provides advanced networking features for flexibility, simplicity, security, and scale.

Table 1 lists many of the Cisco Catalyst Digital Building Switch’s features and benefits.

Table 1.        Digital Building Switch Features and Benefits Summary

Feature

Benefits

Switch Reliability and Scale

Small form factor; fanless design; silent operation

Industry’s first and only semi-ruggedized fanless switch, delivering up to 60W of power/port, ideal for deployment in indoor open workspaces and other areas that require no equipment noise

Increased PoE scale

Provides unprecedented PoE scale, up to 480W of UPOE (2x the power budget in any fanless switch) and 240W of PoE+

Perpetual and Fast UPOE

Industry’s first Perpetual UPOE ensures uninterrupted powering of endpoints during switch upgrade, reboots and configuration changes. Fast UPOE ensures powering of PoE and UPOE endpoints within 5 seconds of power restoration, in case of power losses

System life

This switch comes with the industry’s highest reliability and 10 years of system life

Pre-validated architecture

Cisco supports tested, validated, and integrated lighting solutions, which can reduce deployment risk and speed up the time to value. Proven robust technology, existing network and end-to-end security provide a complete digital building solution

Installation Simplicity

Flexible mounting options

Supports flexible deployment/mounting options, including rack, electrical cabinet, and in ceiling

Flexible powering options

The switch can be powered through direct wires for 100-277VAC applications or with IEC plugs for 100-240VAC voltage inputs

Automated testing in deployment

Smart defaults and integrated mobile app (available on Android and iOS) greatly reduce the effort in testing the deployment by non-IT trained installers, resulting in lower installation costs

Scalable Configuration and Control

Configuration at scale

The switch is Cisco DNA-ready, and can be used as part of the APIC-EM solution for automated switch deployments. It also supports Network Plug-n-Play (PnP), a secure, scalable solution that accelerates network device deployments by automating the installation/configuration of Cisco IOS Software, enhancing productivity and user experience, and reducing costs and downtime

Remote upgrades

The switch allows for hassle free upgrades, maintenance, and troubleshooting for lighting and other building networks using over-the-air software change. This is enhanced with the easy offline firmware and configuration upgrades with an SD card using an intuitive mobile app interface

Network management

●  Cisco Prime Infrastructure provides comprehensive network lifecycle management with an extensive library of features that automate initial and day-to-day management. Cisco Prime integrates hardware and software platform expertise and operational experience into a powerful set of workflow-driven configuration, monitoring, troubleshooting, reporting, and administrative tools
●  Cisco Network Assistant is a PC-based, centralized network management and configuration application for Small and Medium-sized Business (SMB) with up to 250 users. An intuitive GUI lets you easily apply common services across Cisco switches, routers, and access points
●  Cisco Active Advisor is a cloud-based service that provides essential lifecycle information about your network inventory. Available by itself or as a component of other Cisco network management applications, it helps you reduce your network’s overall risk by keeping you up-to-date about the status of your products

Bluetooth integration

This is the industry’s first Bluetooth enabled switch for out-of-band configuration from mobile apps on Android and Apple IOS via a removable radio

Improved web UI

The Cisco Configuration Professional for Catalyst delivers superior management and monitoring of the switch

Software and Security

Layer 2 features for operational simplicity

●  IPv6 host support
●  SNMPv3 for secure configuration, control and information retrieval through appropriate Management Information Base (MIBs)
●  Link Aggregation Control Protocol (LACP) for creating Ethernet channeling with devices that conform to IEEE 802.3ad
●  Dynamic Host Configuration Protocol (DHCP) auto-configuration of multiple switches through a boot server
●  Cisco VLAN Trunking Protocol (VTP), which supports dynamic VLANs and dynamic trunk configuration across all switches
●  For enhanced traffic management, monitoring, and analysis, the Embedded Remote Monitoring (RMON) software agent, which supports four RMON groups (history, statistics, alarms, and events)
●  LLDP and LLDP-MED enhancements for easy identification of end-devices

CoAP support

This switch functions as a CoAP Proxy. CoAP is a lightweight IoT protocol enabling not only lighting and sensors, but also HVAC and security systems to interoperate for delivering advanced space analytics

Security and threat defense

●  802.1x, Webauth and MACAuth, TACACS+, RADIUS authentication capabilities for secure onboarding of end-devices
●  Secure boot to make sure that only signed and authorized images can load on the switch
●  Port-based Access Control Lists (ACLs) to let the switch automatically allow or block packets based on policies for source and destination IP addresses. Rules can be set up differently on a port-by-port basis
●  PVLAN edge for restricting communication between end devices
●  Network-as-a-sensor: Along with Cisco Catalyst 3850 as an upstream switch, this switch has Network-as-a-Sensor (NaaS) capabilities to provide broad and deep visibility into network traffic flow patterns and rich threat intelligence information that allows rapid identification of security threats
●  Network-as-an-enforcer: Along with Cisco Catalyst 3850 as an upstream switch, device profiling and Network-as-an-Enforcer (NaaE) are enabled to dynamically enforce role based security to reduce the overall attack surface, contain attacks, and minimize the time needed to isolate threats when detected using Cisco TrustSec with Cisco ISE

Power Management

Switch hibernate and deep sleep mode

Innovative technology that puts the switch in an ultra-low power mode during periods of no PoE usage. The switch can be configured to be in the hibernate mode using CoAP and comes out of this mode using Wake-on-packet. It can also come out of the deep sleep mode with the physical mode button

IEEE 802.3az or energy-efficient Ethernet (EEE)

Ports dynamically sense idle periods between traffic bursts and quickly switch the interfaces into a low-power idle mode, reducing power consumption

System power efficiency

The switch also improves the industry standard on system power efficiency to 90% using innovative power management techniques

Cisco Energy Manager

Integrated with the Cisco Energy Management suite for full energy control and visibility

Power supply

Meets 80-Plus Gold efficiency requirements

Product Details

Switch Models

The Cisco Catalyst Digital Building Switches are available in two switch models. They vary by the output power/port supported by the model. One model supports Power over Ethernet Plus (PoE+), which guarantees 30W/port of power. The other model supports Universal Power over Ethernet (UPOE), which guarantees double the power, 60W/port.

Table 2 compares the available switch models and list the software package that ships by default with each model and how much PoE power is available for the downlink ports.

Table 2.        Cisco Catalyst Digital Building Series Switch Models and Default Software

Model

Ethernet Ports

PoE Output Ports

Available PoE Power

Uplinks

Default Software

CDB-8U

8 x 10/100 Fast Ethernet UPOE

8

480W

2 x 10/100/1000

LAN Lite

CDB-8P

8 x 10/100 Fast Ethernet PoE+

8

240W

2 x 10/100/1000

LAN Lite

Switch Software

Cisco Catalyst Digital Building Series switches ship with the LAN Lite version of Cisco IOS Software, which is optimized for Layer 2 deployments. For more information for the features supported in LAN Lite, refer to the Cisco feature navigator at https://tools.cisco.com/ITDIT/CFN/jsp/index.jsp.

Licensing and Software Policy

Customers with Cisco Catalyst LAN Lite software feature sets will receive updates and bug fixes designed to maintain the compliance of the software with published specifications, release notes, and industry standards compliance as long as the original end user continues to own or use the product for up to one year from the end-of-sale date for this product, whichever occurs earlier. This policy supersedes any previous warranty or software statement and is subject to change without notice.

Product Specifications

Table 3 provides hardware specifications for the Cisco Catalyst Digital Building Series Switches.

Table 3.        Cisco Catalyst Digital Building Series Switch Hardware Specifications

Description

Specification

Performance

Forwarding bandwidth

2.8 Gbps

Switching bandwidth (full-duplex capacity)

5.6 Gbps

Flash memory

256 MB

Memory DRAM

512 MB

Max VLANs

64

VLAN IDs

1-4094

Maximum Transmission Unit (MTU)

Up to 1500 bytes

MAC entries

8192

Port channels

6

Queues

4 egress queues/port

Buffers

1K

ACLs

180 MAC, IPv4 and IPv6

Bootup time

35 sec.

Forwarding Rate 64-Byte Packet Cisco Catalyst Digital Building Series

CDB-8U

4.2 mpps

CDB-8P

4.2 mpps

Connectors and cabling

Cisco Catalyst Digital Building Series Ethernet interfaces:

●  10BASE-T ports: RJ-45 connectors, 2-pair Category 3, 4, or 5 Unshielded Twisted-Pair (UTP) cabling
●  100BASE-TX ports: RJ-45 connectors, 2-pair Category 5 UTP cabling
●  1000BASE-T ports: RJ-45 connectors, 4-pair Category 5 UTP cabling

Power connectors

●  The Cisco Catalyst Digital Building Series Switches utilize a proprietary power connector on the switch itself to make installation, upgrades, and maintenance fast and easy, as well as enabling up to 277VAC operation. The internal power supply is an autoranging AC power supply
●  Customers utilizing the direct-wire Catalyst Digital Building Flex Mount can provide 100V – 277VAC input voltage.
●  Customers utilizing the C14 Catalyst Digital Building Flex Mount, or the Catalyst Digital Building 5-slot Rack Mount can utilize 100V – 240VAC input voltage
●  The C14 Catalyst Digital Building Flex Mount and the Catalyst Digital Building 5-slot Rack Mount can be ordered with a variety of country-specific power cords

Indicators

Per-port status: link integrity, disabled, activity, speed, PoE Status

System status: system, power saving mode

Dimensions
(H x W x D)

Cisco Catalyst Digital Building Switch Series

Inches

Centimeters

CDB-8U

2.75 x 8.72 x 11.07

6.98 x 22.15 x 28.12

CDB-8P

2.75 x 8.72 x 11.07

6.98 x 22.15 x 28.12

Weight

Cisco Catalyst Digital Building Switch Series

Pounds

Kilograms

CDB-8U

9.65

4.38

CDB-8P

9.65

4.38

CDB-MNT-FLEX-DIR=

3.55

1.61

CDB-MNT-FLEX-C14=

3.55

1.61

CDB-MNT-RACK5-C14=

16

7.26

(Total wt. for 2 units/Flex mount)

1.74

0.78

Environmental ranges

 

Cisco Catalyst Digital Building Switch Series

Operating*temperature up to 5000 ft (1524 m)

-5°C to +50°C**

+23°F to +122°F

Operating* temperature up to 10,000 ft (3048 m)

-5°C to +45°C

+23°F to +113°F

Storage temperature up to 15,000 ft (4572 m)

-25°C to +70°C

-13°F to +158°F

Operating altitude

Up to 3048 m

Up to 10,000 ft

Storage altitude

Up to 4000 m

Up to 15,000 ft

Operating relative humidity

5% to 95% noncondensing

Storage relative humidity

5% to 95% noncondensing

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

** Operation above 40°C may impact service life.

Mean Time Between Failures (MTBF)

Cisco Catalyst Digital Building Series

MTBF (hours)

CDB-8U

710,270

CDB-8P

910,260

Table 4 describes the power specifications for the Cisco Catalyst Digital Building Series Switches

Table 4.        Power Specifications for Cisco Catalyst Digital Building Series Switches

Description

Specification

AC/DC input voltage and current

 

I/P Voltage

I/P Current

115VAC

230VAC

277VAC

CDB-8U

100VAC – 277 VAC +/- 10%

5.18A

2.59A

2.18A

CDB-8P

100VAC – 277 VAC +/- 10%

2.68A

1.34A

1.16A

Power rating

Watts

CDB-8U

600W

 

 

 

CDB-8P

310W

 

 

 

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

Power supply characteristics

 

Capacity

% Load

Efficiency (115 VAC)

Power Factor (pf)

CDB-8U

545W (80-Plus Gold)

20

88%

0.985

50

91%

0.995

100

91%

0.995

CDB-8P

280W (80-Plus Gold)

20

87%

0.982

50

90%

0.994

100

90%

0.994

 

Capacity

% Load

Efficiency (230 VAC)

Power Factor (pf)

CDB-8U

545W (80-Plus Gold)

20

89%

0.840

50

93%

0.958

100

93%

0.958

CDB-8P

280W (80-Plus Gold)

20

87%

0.835

50

91%

0.951

100

91%

0.951

Table 5 shows switch management and standards support.

Table 5.        Management and Standards Support for Cisco Catalyst Digital Building Series Switch

Description

Specification

SNMP MIB Supported

●  BRIDGE-MIB
●  CISCO-BRIDGE-EXT-MIB
●  CISCO-CDP-MIB
●  CISCO-CONFIG-COPY-MIB
●  CISCO-ENVMON-MIB
●  CISCO-ERR-DISABLE-MIB
●  CISCO-FLASH-MIB
●  CISCO-IF-EXTENSION-MIB
●  CISCO-IGMP-FILTER-MIB
●  CISCO-LAG-MIB
●  CISCO-MEMORY-POOL-MIB
●  CISCO-PAGP-MIB
●  CISCO-PING-MIB
●  CISCO-PORT-STORM-CONTROL-MIB
●  CISCO-PROCESS-MIB
●  CiscopowerEthernetMIB
●  CISCO-ENTITY-SENSOR-MIB
●  ciscoPowerEthernetExtMIB
●  ciscoPoePdMIB
●  CISCO-STP-EXTENSIONS-MIB
●  CISCO-SYSLOG-MIB
●  CISCO-TCP-MIB
●  CISCO-UDLDP-MIB
●  CISCO-VLAN-IFTABLE-RELATIONSHIP-MIB
●  CISCO-VLAN-MEMBERSHIP-MIB
●  CISCO-VTP-MIB
●  ENTITY-MIB
●  ETHERLIKE-MIB
●  IEEE8021-PAE-MIB
●  IEEE8023-LAG-MIB
●  IF-MIB
●  SNMPv2-MIB
●  TCP-MIB
●  UDP-MIB

Standards

●  IEEE 802.1D Spanning Tree Protocol
●  IEEE 802.1p CoS Prioritization
●  IEEE 802.1Q VLAN
●  IEEE 802.1s
●  IEEE 802.1w
●  IEEE 802.1X
●  IEEE 802.1ab (LLDP)
●  IEEE 802.3ad
●  IEEE 802.3x full duplex on 10BASE-T, 100BASE-TX, and 1000BASE-T ports
●  BlueTooth Ver 4.0
●  IEEE 802.3af and IEEE 802.3at
●  IEEE 802.3 10BASE-T
●  IEEE 802.3u 100BASE-TX
●  IEEE 802.3ab 1000BASE-T
●  IEEE 802.3z 1000BASE-X
●  RMON I and II standards
●  SNMP v1, v2c, and v3
●  IEEE 802.3az
●  IEEE 802.3ae 10Gigabit Ethernet
●  IEEE 802.1ax

RFC compliance

●  RFC 768 - UDP
●  RFC 783 - TFTP
●  RFC 791 - IP
●  RFC 792 - ICMP
●  RFC 793 - TCP
●  RFC 826 - ARP
●  RFC 854 - Telnet
●  RFC 951 - Bootstrap Protocol (BOOTP)
●  RFC 959 - FTP
●  RFC 1112 - IP Multicast and IGMP
●  RFC 1157 - SNMP v1
●  RFC 1166 - IP Addresses
●  RFC 1256 - Internet Control Message Protocol (ICMP) Router Discovery
●  RFC 1305 - NTP
●  RFC 1492 - TACACS+
●  RFC 1493 - Bridge MIB
●  RFC 1542 - BOOTP extensions
●  RFC 1901 - SNMP v2C
●  RFC 1902-1907 - SNMP v2
●  RFC 7252 - CoAP
●  RFC 1981 - Maximum Transmission Unit (MTU) Path Discovery IPv6
●  FRC 2068 - HTTP
●  RFC 2131 - DHCP
●  RFC 2138 - RADIUS
●  RFC 2233 - IF MIB v3
●  RFC 2373 - IPv6 Aggregatable Addrs
●  RFC 2460 - IPv6
●  RFC 2461 - IPv6 Neighbor Discovery
●  RFC 2462 - IPv6 Autoconfiguration
●  RFC 2463 - ICMP IPv6
●  RFC 2474 - Differentiated Services (DiffServ) Precedence
●  RFC 2597 - Assured Forwarding
●  RFC 2598 - Expedited Forwarding
●  RFC 2571 - SNMP Management
●  RFC 3046 - DHCP Relay Agent Information Option
●  RFC 3376 - IGMP v3
●  RFC 3580 - 802.1X RADIUS

Note: RFC, MIB and standards compliance is dependent on Cisco IOS Software level.

Table 6 shows safety and compliance information.

Table 6.        Safety and Compliance Support

Description

Specification

Safety standards

●  UL 60950-1
●  CAN/CSA 22.2 No. 60950-1
●  EN 60950-1
●  IEC 60950-1
●  CE Marking
●  GB 4943
●  IEC 60825
●  UL 2043
●  UL 2108

Electromagnetic emissions certifications

●  FCC Part 15, CFR 47, Class A, North America
●  EN 55022 (CISPR22) and EN 55024 (CISPR24), CE marking, European Union
●  AS/NZS, Class A, CISPR22:2004 or EN55022, Australia and New Zealand
●  VCCI Class A, V-3/2007.04, Japan
●  KCC (formerly MIC, GB17625.1-1998) Class A, KN24/KN22, Korea

Environmental

Reduction of Hazardous Substances (ROHS) 6

Ordering Information

To place an order, consult Table 7 for ordering information and visit Cisco Commerce Workspace.

Table 7.        Ordering Information for Cisco Catalyst Digital Building Series Switch

Cisco Catalyst Digital Building Series Switches

Part Number

Description

CDB-8U

Cisco Catalyst Digital Building Switch, 8 x FE, 480W UPOE, Uplinks: 2 x 1G copper, LAN Lite.

CDB-8P

Cisco Catalyst Digital Building Switch, 8 x FE, 240W PoE+, Uplinks: 2 x 1G copper, LAN Lite.

Cisco Catalyst Digital Building Series Accessories

Part Number

Description

CDB-MNT-FLEX-C14=

Flexible mount* spare part with IEC C14 power junction box (One mount needed per switch to power the switch).

CDB-MNT-FLEX-DIR=

Flexible mount* spare part with direct-wired junction box (One mount needed per switch to power the switch).

CDB-MNT-RACK5-C14=

5-RU 19” rack mount chassis spare part for 5 switches (Flexible mounts above are NOT required if switches to be mounted on this rack mount chassis).

* Available as a spare unit too.

Warranty Information

Cisco Catalyst Digital Building Series Switches come with an enhanced limited lifetime hardware warranty that includes 90 days of Cisco Technical Assistance Center (TAC) support and next-business-day hardware replacement free of change (see Table 8 for details).

Learn More

For more information, contact your Cisco sales account rep or visit cisco.com/go/digitalbuilding.

Model CDB-8U
Category Catalyst Digital Building Series
Subcategory Catalyst Digital Building Series Switches
Description Catalyst Digital Building 8 Port UPoE
Price 1,753.70 USD
Last Update 2021-11-01

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