PortMon for Microsoft Windows is a very useful tool. This utility monitors all serial port activity, shows how an application uses a port, and…
Does Sealevel offer kits for customizing serial cables?
Sealevel offers several accessories for interfacing many serial connections. The universal D-Shell Converter Kit (Item# DB101) includes DB9 and DB25 Male and Female connectors, D-sub…
What kind of cable should I use for RS-485 communications?
A good economical solution for field wiring is to use CAT5 or CAT6 twisted pair cable. Connect each twisted pair to the same set…
What 3rd party software programs work with my Sealevel product?
Sealevel products are tested with many popular software programs. The 3rd Party Software Support page has a list of these programs with links to application…
What pins should I connect when performing a loop back test? Do all pins need to be connected?
Only the data pins (TX and RX) are necessary for a loop back test. Unless you need to test the modem control signals (RTS,…
Will RS-530 serial devices work with Sealevel RS-422 or RS-485 serial interfaces?
Yes. An RS-530 to RS-422/485 interface cable will be required to match up the signal pin outs of the interfaces. Use the CA176 cable…
I’m having problems with my USB serial device under Windows XP.
There are known issues with the USB driver built into Windows XP SP1 (Service Pack 1) that affect suspend, hibernation, and restarting. This issue…
What is “Serial Tunneling”?
Serial tunneling works by pairing two Sealevel Ethernet Serial Servers (located on the same subnet) together by configuring each other’s IP addresses. When one serial…
Why do I need optical isolation?
Optical isolation improves the reliability of I/O applications in industrial, marine, mobile or similar environments, thus alleviating the problems caused by ground loops, electromagnetic interference…