Most users reporting this issue are using Windows XP and some version of Internet Explorer. The Sealevel website uses the latest methods of SNI (Server…
Are Sealevel optically-isolated inputs active high or active low?
It depends on how the input is wired to your application. An input is triggered when the input terminal and local common terminal of…
What is MIL-STD-1553?
MIL-STD-1553 is a military standard published in 1973 by the U.S. Department of Defense that defines the electrical, mechanical and functional specifications of the…
What is the difference between A/D resolution and A/D accuracy?
Resolution and accuracy are two commonly confused specifications for analog to digital conversions. Resolution defines the smallest increment of change that can be detected…
What is the difference between SeaLINK 820x and 820xFX digital I/O adapters?
Sealevel strives to minimize the impact of component obsolescence to our customers. When a component is discontinued by a vendor, Sealevels goal is to…
What is Automated Optical Inspection (AOI) and how does it improve Sealevel product quality?
Automated Optical Inspection (AOI) is an inspection technology used in the printed circuit board manufacturing process. AOI equipment is positioned near the end of…
Why are solid-state relay modules different colors?
The color is used to identify the type. The open-standard color scheme was developed by Opto 22 in 1978 to help identify the four basic…
How can I guarantee that different USB serial adapters will use the same COM port assignments?
When you connect a USB serial adapter to a computer, the operating system assigns individual COM port numbers to each serial port. Each USB…
Can you scale the capabilities of a COM Express system?
COM Express modules are available in a wide range of processor and memory configurations. The modular design of a COM Express module allows Sealevel…