Case Study: HBM SoMat

March 8, 2018 at 8:00 AM


For more than 65 years, our customer HBM has provided precise and reliable products for a variety of test and measurement applications across a wide range of industries. HBM’s SoMat product line is an innovative portfoloio of precision data acquisition systems for field and lab analysis. Across industries including aerospace, automotive, oil and gas and everything in between, SoMat products  have helped companies by delivering rugged and modular data acquisition systems able to perform a range of on-board data processing while enduring harsh environments.


This issue HBM was having was finding a durable, custom interface cable solution at a competitive price for its SoMat product line. Their current cable did not provide the strain relief that was required by its customers. SoMat products used cables that had assembled backshells and because of the non-uniform shape of the cable bundle, the cables were pulling out of the backshell. This flaw was costing the company in product returns and repairs, and leaving customers unhappy.


L-com provided HBM with several custom engineered D-subminiature cable assemblies with molded backshells (similar to the one shown here) that were able to replace the existing assemblies. L-com’s cables solved the strain relief problem and reduced overall system cost without compromising design requirements, which fully met HBM’s customers’ requirements.


To read the full case study, click here.


Case Study: Kinki Sharyo

November 30, 2017 at 8:00 AM


In metropolitan areas, thousands of people depend on the rail system every day as a primary mode of transportation. Our customer, Kinki Sharyo, has designed and manufactured more than 10,000 railcars and is the leading supplier of low-floor light rail systems in North America. From manufacturing to maintenance, they design a full-range of customized products to meet the needs for each transit system to get people where they need to go safely and reliably.


After being awarded a $30 million contract from NJ Transit, Kinki Sharyo needed to make 60 new trains with DVI, Cat5e and USB cabling for onboard video and LED lighting systems. The problem they were having was finding a cable that could provide connectivity to articulated train cars that are connected to each other.  The existing connectivity method used heavy gauge cables bundled together that frequently wore out and had failure at friction points. They needed a robust cabling system that would not wear down and could withstand the movement of the train cars and constant flexing of the cables.


L-com provided Kinki Sharyo with crush-proof armored USB, right-angle Cat5e Ethernet and right-angle DVI cables all off-the-shelf and ready for installation. These cables met all the needs of the new rail car design. The USB cables were more than rugged enough, the right-angle DVI and Cat5e cables were the perfect fit for rail cars with limited space and they all provided the added benefit of low-smoke zero-halogen jackets to protect the new rail cars and passengers inside.


To read the full case study, click here.


HDMI & DVI - Your Questions Answered

October 5, 2017 at 8:00 AM


HDMI and DVI cables are the two most popular video cables used today. Both HDMI and DVI far outperform traditional VGA cables cables that only transmit analog video signals. These digital interconnects are used to link everything from desktop computers and LCD monitors to HDTV’s and entertainment sysyems.


DVI is commonly used to connect computers to monitors. They are the most similar to traditional VGA with 24 pins that support analog and digital video. DVI can stream up to 1920x1200 HD video pixels, or up to 2560x1600 pixels using dual-link DVI technology. If the DVI cable or port does not have all 24 pins, it is designed for lower resolution devices, but as long as all the pins are accounted for, it should be able to support the maximum resolution. One downfall of DVI is that it doesn’t support HDCP encryption by default, which means you may not be able to play full HD Blu-rays or other HD content if your harware only includes DVI ports.


HDMI is the standard cable used on newer HDTVs, Blu-ray players, Apple TVs, computers and many other video devices. HDMI cables and ports are easy to use and connect with no pins to align, it’s a simple plug and play connection similar to USB. These cables can stream both digital video and audio at the same time. They support up to 1920x1200 HD video and 8 channel audio, as well as HDCP for the newest HD content. HDMI is the first industry supported, uncompressed, all digital audio/video interface and is backwards compatible with DVI-D.



Still have questions? Here are some of the most frequently asked questions our support team gets asked about HDMI and DVI:


 -  What is the maximum length for a DVI cable?

  •    A DVI-D signal can travel 5 meters over a single cable. For distances longer than 5 meters, a DVI extender/repeater is needed.


 -  What is the maximum length for an HDMI cable?

  •    A HDMI signal can travel 5 meters over a single 28 AWG cable. A HDMI extender/repeater is needed for distances longer than 5    meters.


 -  When using a long HDMI cable, the monitor display is blank or the resolution looks bad. Why?

  •   Currently, HDMI cables up to 5 meters in length will operate properly. If the cable is longer than 5 meters, the signal begins to       degrade and a signal extender is needed.


 -  Can I get a HDMI to DVI adaptor?

  •   HDMI is only compatible with single-link DVI-D and single-link DVI-I. It is not compatible with DVI-A, dual-link DVI-D or dual-link      DVI-I, the adaptors will plug-in but will not work for these formats.


 -  Can I get a HDMI to VGA adaptor?

  •   No, HDMI is not compatible with VGA.


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Readers' Choice -Top Blog Posts of 2016

December 29, 2016 at 8:00 AM


As another year comes to a close, so does another chapter of our blog, Engineering Hub. We covered a wide variety of topics in order to keep you, our readers, in the loop with what’s going on in the world of wired and wireless technology. Here are highlights of the 2016 posts that were the most popular with our readers.


1.       802.11ay: 20 Gig Wireless!

The next generation wireless standard will blow you away with triple the speed and 30xs the transmission distance of 802.11ad. Learn about all of the benefits of 802.11ay and what it means for the world of wireless networking technology. (Read more)




2.       Fiber Showdown: Multimode vs. Single mode

Multimode and single mode are the two most common types of fiber optic cables. Both have very different attributes and one may work better than the other, depending on the needs of your application. This post will help you decide which will give you the best results. (Read more)




3.       Cat6 Cable: Shielded vs. Unshielded

Category 6 Ethernet cable is designed to provide high speed data rates, but how do you decide between shielded or unshielded? Here, we compare them side by side so you can choose which will work best for your application. (Read more)




4.       Good Vibrations: Vibration-Proof USB Connectors


Universal Serial Bus (USB) is one of the most widely used technologies to connect and power devices. One fundamental flaw of USB is its sensitivity to vibration, causing the connector to dislodge. In this post we show you some solutions to keeping your USB connected. (Read more)




5.      Next Generation Positioning: A look at what’s around the corner


GPS apps and positioning technology is something we use everyday to get directions or find something or someone nearby, and that usage is expected to continue to grow at a staggering rate. Here’s a look at what the IEEE has in store for next gen positioning technology. (Read more)

Video Blog- L-com's Toughest Cable Field Test

November 3, 2016 at 8:00 AM


Have you ever wanted to test your cables and really push them to the limit? If so, we have a video you MUST watch. We wanted to see just how much abuse our metal armored cables could endure, so we put them through our toughest test ever.


Our series of metal armored cables are capable of withstanding the harshest environments and are specifically designed for outdoor, industrial and military applications. Rugged metal armor protects the cable from damage and provides up to 1,500 pounds per square inch (PSI) of crush resistance. The metal jacket also secures the cable from dust, oil, moisture and UV damage. These cables can be used in a variety of industrial applications including factory automation, manufacturing and chemical or petroleum processing networks.


Our metal armored cables are currently available off-the-shelf in USB, DVI, HDMI, Ethernet (RJ45) and D-Subminiature styles. Plastic armored cable assemblies with up to 800 PSI of crush resistance are also available. In addition to our extensive off-the-shelf armored cable offering, we can also design and manufacture armored cables to your specifications.


Now, check out the video to watch our field test and see just how tough our armored cables are.



For more videos, tips and tutorials, click here.


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