The 5104 is our highest speed sync card. For high-speed communications, it is the perfect solution. Unfortunately, if you’re using async mode it’s not necessarily…
What is asynchronous communication?
The important thing with asynchronous communication is the fact that since it is time-based, the transmitter and the receiver both have to be very accurately…
My Ethernet Serial Server is missing from the SeaLINK Device Discovery utility. How do I find it?
The most common solution is to disable all network adapters except for the one connected to the Ethernet Serial server, then try searching for the…
How to resolve communication issues affecting Sealevel’s XR17V35X based serial devices (7xxxec serial cards, 7106e, Relio R1)?
The following devices are based on the XR17V35X and are known to be impacted by the GPIO configuration issue described in this article: 7xxxec serial…
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…
How can I test to see if data is going through my serial tunnel?
A serial tunnel is formed by two Ethernet serial servers that transmit data received by the local serial port through a TCP/IP connection out…
When should I use the RFC 2217 mode of my SeaLINK Ethernet serial server?
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…