Brackets to suit

Sometimes the card you need is right in every regard, but one: it doesn’t fit! In fact, that was the impulse behind low-profile PCI in the first place — someone realized that full-height computer cases had a lot of empty space inside, and decided to make them slimmer. In doing so, adapter cards needed to […]

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New RS-422 Ether-Serial Link

The new LAVA Ether-Serial Link 1-422-RJ45 provides one RS-422 enabled serial port, accessible over Ethernet. It has configurable RS-422 termination and bias settings, as well as being able to supply 5 VDC or 12 VDC to attached peripherals that are designed to receive power on their serial ports. The diagram to the right shows the […]

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Sensor and POS integration

In March 2006 Pier 1 imports, a top American home furnishings retailer, sold its England-based business “The Pier” to Lagerinn ehf., an Icelandic group. Lagerinn went on to own, operate, and grow the group to 32 stores and 17 concessions in the UK, sourcing and selling distinctive furniture and household accessories. It had a small […]

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IP-Enabling Kiosks and Vending Machines

Opal Manufacturing Ltd. has been designing and manufacturing vending solutions for over 70 years and is a global leader in the delivery of prepaid telecom products, transit ticket dispensing, postal booklet vending, prepaid debit card vending, PIN vending, prepaid IP access, and self service bill pay applications. Opal’s primary focus has been in producing equipment […]

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An Inside Look at the LAVA Parallel-PCI

Recently we had a customer inquiry about the internals of one of our parallel port cards. To answer, we had to take a refresher course in what our design contained. That process led us to think: why not let interested technically-minded people see what’s inside the LAVA parallel EPP port design? We decided we would. So here’s […]

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Not Rocket Science

Sometimes it’s not rocket science. Loblaw Companies Limited, a large food store chain based in Canada, needed a reliable method of adding serial ports to their POS systems. They were looking for a simple workhorse serial interface to connect the usual sorts of POS peripherals — weigh scales, printers, and bar code scanners — to […]

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Piping DOS over Ethernet

A little-known fact: DOS commands can be sent through LAVA Ether-Serial Links. And it’s actually simple to do. With an Ether-Serial Link configured in Windows Driver mode, and with its port activated as usual, all you need to do is pipe DOS data (using the conventional DOS redirection command “>”) to the serial port of […]

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Remote Climatological Monitoring

The Detroit Institute of Arts (DIA) is a renowned art museum in the city of Detroit. In 2003, the DIA ranked as the second largest municipally owned museum in the United States, with an art collection valued at more than one billion dollars. It encloses over 100 galleries and now covers 658,000 square feet (61,130 […]

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RS-232 remote control of televisions

LAVA was approached by a video systems integrator who was operating a collection of televisions dispersed throughout a convention center. The televisions were controlled on their RS-232 ports. Control codes sent through the serial ports gave him basic operation of the televisions. His original design had serial cables using signal amplifiers, led back to a […]

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Using the Ether-Serial Link as a Serial Data Format Converter

Here’s an interesting use for the LAVA Ether-Serial Link: as a generalized serial data format converter. A quick search on the web shows that people have a variety of needs for converting one RS-232 data format to another, for a variety of reasons, and the solutions are usually cumbersome. For example, one might want to […]

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