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Key Features

  • Full SNMP management plus Web-based management and console port
  • Support for VLAN and QoS
  • Supports IEEE 802.1x port-based network access control
  • 802.3az Energy-Efficient Ethernet saves on power costs
BLACK BOX Switches & Bridges

GIGABIT MANAGED SWITCH 28 PORT

Mfr # LGB5028A-R3 SKU 14628441

$838.43 MSRP $1,194.59 Save 30%

Regular price saves you $356.16 against MSRP.

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Product Overview

GIGABIT MANAGED SWITCH 28 PORT

  • Black Box (LGB5028AR3) Switches & Bridges
  • Black Box LGB5000 Series Gigabit Ethernet (1000-Mbps) Managed Switch - (24) 10/100/1000-Mbps Copper RJ45, (4) 100/1000-Mbps SFP+, (1) DB9 Console - 24 Ports - Manageable - Gigabit Ethernet - 10/100/1000Base-T, 1000Base-X - 2 Layer Supported - Twisted Pair, Optical Fiber - 1 Year Limited Warranty
  • Black Box LGB5000 Series Gigabit Ethernet (1000-Mbps) Managed Switch - (24) 10/100/1000-Mbps Copper RJ45, (4) 100/1000-Mbps SFP+, (1) DB9 Console
  • 24 Ports - Manageable - Gigabit Ethernet - 10/100/1000Base-T, 1000Base-X - 2 Layer Supported - Twisted Pair, Optical Fiber - 1 Year Limited Warranty

Technical Specifications

Product Type Ethernet Switch
Input Voltage 120 V AC
Input Voltage 230 V AC
Manufacturer Part Number LGB5028A-R3
Power Source AC
Limited Warranty 1 Year
Layer Supported 2
Weight (Approximate) 8.38 lb
Features Remote Monitoring (RMON)
Features VLAN Segmentation
Manufacturer Black Box Corporation
Product Name LGB5000 Series Gigabit Ethernet (1000-Mbps) Managed Switch - (24) 10/100/1000-Mbps Copper RJ45, (4) 100/1000-Mbps SFP+, (1) DB9 Console
Network Technology 10/100/1000Base-T
Network Technology 1000Base-X
Product Series LGB5000
Brand Name Black Box
Expansion Slot Type SFP+
Country of Origin Taiwan
Height 1.7"
Width 17.4"
Depth 8.3"
Manageable Yes
Maximum Data Transfer Rate 128 MB/s
Ethernet Technology Gigabit Ethernet
Network (RJ-45) Yes
Number of SFP+ Slots 4
Media Type Supported Twisted Pair
Media Type Supported Optical Fiber
Total Number of Network Ports 24
Port/Expansion Slot Details 24 x Gigabit Ethernet Network
Port/Expansion Slot Details 4 x Gigabit Ethernet Expasnion Slot
Total Number of Expansion Slots 4
Networking Standards IEEE 802.1x
Networking Standards IEEE 802.3az
Networking Standards IEEE 802.1Q
Networking Standards IEEE 802.1p

Marketing Information

  • LGB5000 Series Gigabit Ethernet (1000-Mbps) Managed Switch - (24) 10/100/1000-Mbps Copper RJ45, (4) 100/1000-Mbps SFP+, (1) DB9 Console
  • 4 x Adhesive Rubber Feet
  • Mounting Accessory (for 19" Rack Shelf, optional)
  • 1 x RS-232 to RJ-45 Console Cable
  • 1 x AC Power Cord
  • 1 x Installation Guide
  • User Manual in PDF format on CD-ROM

This high-performance switch uses LACP and IEEE 1588v2 to optimize network operations.

LACP is used in high-availability and performance environments, such as data centers or enterprise networks, to aggregate links between switches, servers, or routers. It simplifies management by treating multiple links as one, and improves resilience by avoiding single points of failure. LACP scales network capacity without upgrading individual links.

IEEE 1588v2, also known as Precision Time Protocol (PTP), is a standard protocol used to precisely synchronize clocks across a network. This is important in applications that require highly accurate timing, such as telecommunications, industrial automation, power systems, and financial services.

Fully manageable

The switch is fully managed, supporting SNMP version 1, 2c, and 3. The embedded RMON software agents support RMON groups 1 (history), 2 (statistics), 3 (alarms), and 9 (events). The integral Web server enables Web-based management via a Web browser. This GUI interface enables switch configuration, system dashboard, maintenance, and monitoring, and includes a wide range of management and support features.

Support for VLAN and QoS

Support for up to four simultaneous VLANs segments traffic with port-based, 802.1Q tag-based, or MAC-based VLANs. 802.1p Layer 2 quality of service (QoS) prioritizes time-sensitive applications such as VoIP and video.

Secure

Enterprise-class security features include 802.1X port-based network access control to authenticate devices connecting to your network. The switch also supports SNMPv3 cryptographic security, SSH, and SSL. Plus, you can set up a guest VLAN that enables visitors to access the Internet without also giving them access to the corporate network.

Green

IEEE 802.3az energy-efficient Ethernet scales down power consumption during periods of low data activity, saving 50% energy. Cable length detection adjusts signal strength to the cable length, reducing power consumption on shorter cable runs.

Shipping & Dimensions

8.8
Weight (lbs)
19.75"
Length
12"
Width
3.5"
Height
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