Any Sealevel asynchronous serial adapter that includes a 16C950 UART or 16C954 quad-port UART natively supports 9-bit framing in hardware. USB serial adapters use…
How do I perform a loopback test with my serial adapter configured for 2-wire RS-485?
2-wire RS-485 connects the transmitter and receiver to the same data channel. Many applications are not designed to receive the same data they are transmitting…
How do I change the COM port assignment for my asynchronous serial adapter?
Sealevel recommends using the installed COM numbers if at all possible to avoid system conflicts. If you previously installed a USB or PCMCIA serial interface,…
How to change asynchronous serial COM Port assignments in Sealevel’s Port Manager or Advanced Ports Utilities
Sealevel recommends using the installed COM numbers if at all possible to avoid system conflicts. If you previously installed a USB or PCMCIA serial interface,…
How to change asynchronous serial COM port assignments in Windows Device Manager
Sealevel recommends using the installed COM numbers if at all possible to avoid system conflicts. If you previously installed a USB or PCMCIA serial interface,…
Which Sealevel asynchronous serial adapters support isochronous communication mode?
Most of our bus based adapters, including PCI Express, PCI, PCMCIA, PC/104 and ISA, can be used. The adapter must have a 16C950 UART…
How does the performance of Sealevel Ethernet serial servers compare to native serial ports?
Sealevel Ethernet serial servers are designed to mimic the behavior of native PC serial ports. Legacy software can communicate with the Ethernet serial server’s virtual…
I have to reinstall a Sealevel serial product. What is the best way?
For Windows 95/98/ME/2000/XP/Vista, use Device Manager to uninstall the product prior to removing it from the computer or unplugging it, as in the case with…
What are the differences between RS-232, RS-422, and RS-485 communication standards?
RS-232, RS-422, and RS-485 are serial communication methods for computers and devices. There are two articles in the Driver Downloads & Software section of the…