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 [...]
read moreNot 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 [...]
read morePiping 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 [...]
read moreRemote 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 [...]
read moreRS-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 [...]
read moreUsing 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 [...]
read moreCustomer Tools
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