…COM1 through COM4 and the Sealevel serial device you installed comes in at COM5 or higher. Another scenario might occur when you install a multiport serial card and the COM…
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What are the video capabilities of COM Express modules?
COM Express video capabilities vary from module to module, so it is important to select the proper module that meets your application requirements. The PICMG COM Express specification defines…
What signal connections or I/O interfaces can Sealevel design into a COM Express carrier board?
COM Express is the most commonly used Computer on Module implementation. Although there are three different sizes and other technical variations, the Basic size (125 x 95mm) and Type…
COM Express Benefits Extend Beyond Carrier Boards
…also benefit from a backplane architecture. COM Express, a popular implementation of Computer on Module (COM), offers a powerful processing platform with several bus connectivity options perfect for creating versatile…
What kind of output is best for controlling the power to a DC motor?
Open-collector outputs with circuit protection are the best choice for controlling power to devices with highly inductive loads such as DC motors, solenoids, and high-current relays. Switching off inductive…
Do I need to add pull-up or pull-down resistors to my Sealevel inputs?
…inputs simplifies the process of field wiring the device, while improving signal integrity and reliability. 1Note: Open-collector or open-drain outputs connected directly to the inputs may leave the connection…
Can I use a PCI or PCIe serial port as a replacement for COM1?
Using Sealevel’s COM Port Manager utility provided with our SeaCOM software suite, a PCI or PCIe serial port can be named “COM1.” After that is done, any program can open…
When should I use the RFC 2217 mode of my SeaLINK Ethernet serial server?
…type of parity and type of flow control. In RFC 2217 mode, the serial server will update these port settings in response to a network command that comes to it…
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 redesign the product to offer…