Black Box
Black Box LBH240A-H-ST Switches & Bridges Hardened Heavy-duty Edge Switch Lbh240ahst 822088105794

Part Number: LBH240A-H-ST
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Product Specifications



Black Box Hardened Heavy-Duty Edge Switch - 4 x 10/100Base-TX, 2 x LBH240A-H-ST

HRD SWT 4-10/100 RJ45 2-100 MM 2KM ST

Manufacturer Part Number: LBH240A-H-ST

Compact switch with fiber uplink for harsh environments. Unlike the Ethernet switches in your wiring closet or computer center the Ethernet switches at the edges of your network have to put up with the bumps and dirt that happen out in the real world. This is where Heavy-Duty Edge Switches from Black Box comes in.The switches featured here are our Hardened models but we also offer Standard and Extreme versions of our Heavy-Duty Edge Switches. Because all three types work together seamlessly you can use the inexpensive Standard Switches in protected office environments and choose the more robust Hardened or Extreme Heavy-Duty Edge Switches for harsh locations at your network's edge.Ideal for use in dusty or dirty environments Hardened Heavy-Duty Edge Switches are tough 6-port Ethernet switches that enable you to expand your network into harsh factory floor environments. They're also rated for a temperature range of -13 and +140degree F (-25 and +60degree C) and their sturdy metal case functions as a heat sink so no internal airflow is needed for cooling. A sealed case resists contaminants such as dust dirt moisture smoke and insects.Multiple power options. In addition to being robust Hardened Heavy-Duty Edge Switches are available with an array of interface and power options. AC-powered switches feature 100- to 240-VAC power supplies. DC-powered units have internal screw terminals for connecting DC power. You can even provide redundant power input with the optional Dual-Source Cable Kit.Run the distance! Multimode models support up to 2 kilometers (1.2 miles) between switches. For longer distances choose single-mode models for up to 20 kilometers (12.4 miles) or single-mode long-distance models for an incredible 40 kilometers (24.8 miles) between links.You can daisy-chain Heavy-Duty Edge Switches together indefinitely making them ideal for applications such as traffic signals where many switches are needed over a long distance.Easy to set up. Heavy-Duty Edge Switches are literally plug-and-play. All copper ports are autosensing for speed and duplex adjusting to the connected device automatically. Plus the UTP ports feature Auto MDI/MDI-X eliminating the need for crossover cables.Each switch has two full sets of LED indicators one set on the front for viewing convenience when the switch is DIN rail or wall-mounted and one set mounted in the end next to the media ports for easy viewing when units are in a rackmount tray.Heavy-Duty Edge Switches feature non-blocking switching architecture with a 2K MAC address table. The 128K buffer memory makes it easy to interconnect 10- and 100-Mbps devices.Fast redundant backup. Heavy-Duty Edge Switches feature Link-Loss-Learn (LLL) for fast network recovery when using the switches in a redundant application. In a normal network situation where you have a primary link and a backup link the network can take as much as a few minutes to recover after the primary link goes down. This is because when the link breaks the switch will use its old MAC address table to try to send data to the disabled port.However if a link breaks with LLL in place the switch senses the disconnect and instantly clears its MAC address table forcing a new address table that includes the new link.



CPN:HRD SWT 4-10/100 RJ45 2-100 MM 2KM ST
MANUFACTURER NAME: Black Box
MANUFACTURER PART NUMBER: LBH240A-H-ST
UPC EAN CODE: 822088105794
LANGUAGE: EN
MARKET:US

General Information:

  • Two sets of LEDs enable you to see status information from the front, top, or side.
  • Support VLAN tagging and spanning tree passthrough.
  • Include Link-Loss-Learn (LLL) feature for fast network recovery.

Unlike the Ethernet switches in your wiring closet or computer center, the Ethernet switches at the edges of your network have to put up with the bumps and dirt that happen out in the real world. This is where Heavy-Duty Edge Switches from Black Box comes in.

The switches featured here are our Hardened models, but we also offer Standard and Extreme versions of our Heavy-Duty Edge Switches. Because all three types work together seamlessly, you can use the inexpensive Standard Switches in protected office environments and choose the more robust Hardened or Extreme Heavy-Duty Edge Switches for harsh locations at your network's edge.

Ideal for use in dusty or dirty environments, Hardened Heavy-Duty Edge Switches are tough, 6-port Ethernet switches that enable you to expand your network into harsh factory floor environments. They're also rated for a temperature range of -13 and +140° F (-25 and +60° C), and their sturdy, metal case functions as a heat sink so no internal airflow is needed for cooling. A sealed case resists contaminants such as dust, dirt, moisture, smoke, and insects.

Multiple power options.
In addition to being robust, Hardened Heavy-Duty Edge Switches are available with an array of interface and power options. AC-powered switches feature 100- to 240-VAC power supplies. DC-powered units have internal screw terminals for connecting DC power. You can even provide redundant power input with the optional Dual-Source Cable Kit.

Run the distance!
Multimode models support up to 2 kilometers (1.2 miles) between switches. For longer distances, choose single-mode models for up to 20 kilometers (12.4 miles) or single-mode, long-distance models for an incredible 40 kilometers (24.8 miles) between links.

You can daisy-chain Heavy-Duty Edge Switches together indefinitely, making them ideal for applications such as traffic signals where many switches are needed over a long distance.

Easy to set up.
Heavy-Duty Edge Switches are literally plug-and-play. All copper ports are autosensing for speed and duplex, adjusting to the connected device automatically. Plus, the UTP ports feature Auto MDI/MDI-X, eliminating the need for crossover cables.

Each switch has two full sets of LED indicators: one set on the front for viewing convenience when the switch is DIN rail or wall-mounted and one set mounted in the end next to the media ports for easy viewing when units are in a rackmount tray.

Heavy-Duty Edge Switches feature non-blocking switching architecture with a 2K MAC address table. The 128K buffer memory makes it easy to interconnect 10- and 100-Mbps devices.

Fast, redundant backup.
Heavy-Duty Edge Switches feature Link-Loss-Learn (LLL) for fast network recovery when using the switches in a redundant application. In a normal network situation where you have a primary link and a backup link, the network can take as much as a few minutes to recover after the primary link goes down. This is because, when the link breaks, the switch will use its old MAC address table to try to send data to the disabled port.

However, if a link breaks with LLL in place, the switch senses the disconnect and instantly clears its MAC address table, forcing a new address table that includes the new link.

LLL works on both fiber and copper ports, and you can enable or disable this feature as needed.

ManufacturerBlack Box Corporation
Manufacturer Part NumberLBH240A-H-ST
Manufacturer Website Addresshttp://www.blackbox.com
Brand NameBlack Box
Product ModelLBH240A-H-ST
Product NameHardened Heavy-Duty Edge Switch
Product TypeEthernet Switch
  Product UPC822088105794
Interfaces/Ports:
Total Number of Network Ports6
Port/Expansion Slot Details4 x Fast Ethernet Network
Media & Performance:
Media Type SupportedTwisted Pair
Ethernet TechnologyFast Ethernet
Network Technology10/100Base-TX
Network & Communication:
Layer Supported2
Management & Protocols:
ManageableYes
Power Description:
Power SourcePower Supply
Physical Characteristics:
Form FactorRack-mountable
Wall Mountable
Panel-mountable
Height3.6"
Width3"
Depth1.7"
Weight (Approximate)12.80 oz
Miscellaneous:
What's in the box
  • Hardened Heavy-Duty Edge Switch
  • Panel Mount Kit
Country of OriginUnited States
TAA CompliantYes
Warranty:
Warranty3 Year

Date Inserted: Tuesday August 8, 2017

This product was last updated on Thursday November 14, 2024

All products are brand new and factory sealed unless otherwise stated.
 *** Disclaimer- Information is supplied by the Manufacturer. The image, including color, may differ from actual product appearance. CompSource, Inc. is not responsible for data. ***

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Standard One Day = $38.00
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Priority = $55.00
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U.S Mail Priority (AA,AE,AP only) = $32.00

FedEx International Economy (Canada only) = $86.00

Typically out of stock items are filled within 1 to 14 business days but can and may take longer.

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CompSource realizes that every product may have different return guidelines. Please see the policy below regarding this item.

Please Note: Due to Black Box's Policy this product is not available for return or exchange and must be handled with Black Box Direct.

For support on this product, please contact Black Box. 1-877-877-2269 www.blackbox.com


Black Box Company's Information

Black Box  
Click Black Box for all products

Toll Free #: 1-877-877-2269

Site:  www.blackbox.com

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    About Black Box

    About Black Box: Black Box: is a trusted IT solutions provider, delivering cutting-edge technology products and world-class consulting services to businesses across the globe in every industry. The breadth of our global reach and depth of our expertise accelerate customer success by bringing people, ideas, and technology together to solve real-world business problems.


    Since 1976, we've been helping our customers accelerate their businesses by bringing people, ideas, and technology together. The technology has changed, but our commitment remains steadfast.

    Here are just a few of the most popular categories for the Black Box brand;


    Learn more about Switches & Bridges

    Network Switch Buying Guide

    Connect Multiple Devices to a Network and Route Data to Designated Devices

    What is a network switch and what does it do?

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    Are there different types of network switches?

    There are two main types of network switches, unmanaged and managed. The essential difference is the capability to configure the operation of a managed switch to customize and optimize network traffic for specific applications.

    Unmanaged Switches

    Managed Switches

    Where do you place network switches?

    Network switches are usually placed on a desk or table, mounted on a wall, or mounted in a rack. CompSource offers unmanaged desktop switches (with metal or plastic housing) and both unmanaged and managed rack-mount switches with metal housing and a built-in PDU (Gigabit Ethernet Switch PDU Combos).

    What is a Gigabit Ethernet Switch PDU Combo?

    CompSource offers an exclusive line of unmanaged and managed Gigabit Ethernet switches that have Power over Ethernet (PoE).

    1U gigabit ethernet switch pdu combo

    Factors to Consider

    Does your application require a managed switch?

    If your application involves controlling network traffic, you will need the features of a managed switch. The following are some examples of tasks that require a managed switch:

    • Controlling access between departments within your LAN
    • Running many bandwidth-intensive applications simultaneously
    • Giving important data greater priority in your LAN
    • Improving the performance of a busy network
    • Implementing VoIP, wireless LANs or other advanced services

    How many devices do you need to connect to your network?

    Make sure you select a switch with enough Gigabit (10/100/1000 Mbps) Ethernet ports for the devices you want to connect to your network. If you think you'll add more devices in the future, choose a switch that will give your network room to grow.

    how many devices do you need to connect to your network

    Do you need to connect multiple network switches?

    If you plan to connect multiple network switches, look for models with SFP uplink ports (also known as Mini-GBIC ports). SFP uplink ports are connection points for SFP (small form-factor pluggable) modules that allow the switch to uplink to other switches using optical fiber cabling.

    Power over Ethernet (PoE) uses existing network cables to power connected devices, such as VoIP phones, wireless access points and surveillance cameras. If you need this functionality, look for a switch with Gigabit Ethernet ports that support PoE. Make sure the power per port (in watts) and the total power budget of the PoE ports meet the needs of your electronic devices.


    CompSource will educate and help make this process enjoyable and easy.

    Whether you're planning on using your network for basic home tasks or enterprise level security. You can tell our trained sales professionals your needs, and we'll make custom recommendations to suit your specifications and budget. Our reps have extensive knowledge and love to share. We educate, not sell, CompSource makes sure you buy what you need and not waste money on what you don't. As with every decision we never push, it's up to you when, and if you make a purchase.

    CompSource has a great technical staff that can help with a solution for your exact needs.

    Chat with us or give our professionals a quick phone call (800)-413-7361.



    Great customer service, straight to the point. Good pricing and the delivery service was fast and they responded within 24hrs for my items, 24hrs later my items arrived! Very pleased with my items and service from CompSource. Sergio M
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