RFC 2217 is a popular protocol for accessing serial ports over a network. A server that uses RFC 2217 allows its serial port to…
What is Slew Rate Limiting and when should I use it?
Slew rate is a measurement of how fast the signal voltage changes over a specified period of time. At high data rates, you need a…
What is the ‘Gen Mod’ that Sealevel recommended?
‘Gen Mod’ is an abbreviation of ‘Generic Modification’ and it ensures that the COM port assignments on a USB serial adapter are always the…
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…
Where do I find a Linux driver for my Sealevel asynchronous serial adapter?
Most Sealevel serial adapters use the serial drivers built into the Linux kernel. For USB and UART-based serial adapters, the Linux drivers may need additional…
How to add missing vendor/product IDs for UART-based serial adapters in Linux
Linux supports the direct use of 16XXX UART-based devices with the drivers included in the kernel sources. However, kernel versions prior to 3.7.0-rc6 are missing…
How to configure USB serial adapters in Linux
The serial USB driver in Linux contains many product IDs for Sealevel devices. However, the newest devices may not be currently included in the driver. This…
How to integrate the 2107 USB to serial adapter into your RS-485 network
The 2107 is designed for two-wire (half duplex) RS-485 applications and provides reduced wiring costs and protection against EMI and other induced line noise.…
How to uninstall a USB device that is no longer connected to a computer?
Microsoft Windows maintains the configuration (enumeration) information for every USB device that has ever been connected, unless you explicitly uninstalled the device before unplugging…