May 23, 2012

Parallel-PCI for CAMAC Control

Computer Automated Measurement and Control (CAMAC) is a long-established standard for data acquisition hardware, often used in the nuclear and particle physics fields. The good news about CAMAC systems (when enclosed in a chassis, they are called CAMAC “crates”) is that they seemingly last forever. The bad news is that they are very expensive, often customized, hard to replace, and interfaced to increasingly obsolete computers. CAMAC crate In the case of the DSPT 6001 / 6002 CAMAC Controllers, interfacing used […]
May 14, 2012

Raspberry Pi serial port: Ribbon or no ribbon?

The interest in an RS-232 serial port for the Raspberry Pi has LAVA considering making a simple GPIO-to-RS-232 DB-9 serial port board. This little item would plug onto the Raspberry Pi’s GPIO pin header, take the Raspi’s UART signals up to RS-232 levels, and present them on a conventional DB-9 (aka DE-9) connector. It would save a lot of people the trouble of individually sourcing components and parts, futzing around with pinouts, line drivers, and soldering, and ending up with […]
May 9, 2012

RS-232 Serial Crossover Cables

The range of serial cabling includes crossover cables, sometimes called null modem cables. This post fills out the information on crossover cables, as at times confusion about them can cause systems not to work. Cabling can be like spaghetti When two pieces of Data Terminal Equipment (terminals, or DTEs) need to be connected to each other, or two pieces of Data Circuit-terminating Equipment (modems, or DCEs) need to be connected to each other, a serial crossover or null modem cable […]
May 7, 2012

DNC Machining Control

Controlink Systems makes software designed for controlling machining and manufacturing equipment, over RS-232 (the standard interface). Direct Numerical Control (DNC) is used to control machining equipment when the machine itself does not issue the processing commands. Controlink DNC software and LAVA serial card Controlink Systems software meshes nicely with LAVA’s serial interfaces, whether PCI, PCIe, or Ethernet-to-Serial device servers.
May 7, 2012

Plasma Cutter Control

Tiba Restaurant Equipment makes high-end consumer and commercial kitchen and restaurant equipment, including hot tables, counters, refrigerators, sinks, and barbeques. Their work consists largely of metalwork design and fabrication, primarily in stainless steel for pieces of equipment, and in galvanized metal for ductwork for installations in restaurants, hotels, banquet halls, kitchens, and residential homes. Tiba Restaurant Equipment products Tiba’s metal cutting designs are created on a computer that has patterns and templates, and specialized software for ductwork design. When Tiba […]
May 1, 2012

Power over Ethernet (PoE) Serial Device Servers

Our popular one- and two-port serial device servers — the Ether-Serial Link 1-232-DB9, the 2-232-DB9, the 1-232-RJ45, and the 2-232-RJ45 — have now been spun into PoE (Power over Ethernet) versions. Because these device servers are designed to draw their power from the same Ethernet cable that is used for their Ethernet interface, there is no need for AC (mains) power. Deployment is greatly simplified, and unnecessary power adapters (“wall warts”) can be eliminated. These four devices are compatible with […]