PortServer TS 16


I have a PortServer TS 16 connected to our network. One of the port is set up a to connect to a line printer (Tally T6215) through an RJ45 to serial connection. This is working fine. I can print through Windows.

I want to be able to print not through Windows but just by sending characters to the COM port. First, I haven’t figured out how to do this yet through our environment (Intersystems Cache). But as a test, I was trying to send a file of text to the COM port through DOS just to see what would happen.

I was getting this error (com21 is one of the installed Digi COM port on my computer):

“com21:” is not a recognized device.

What is the problem? Will the COM ports only work on the Windows layer?

Thank you for any help!

Anyone have any idea on this?


As far as I know, it isn’t possible to use Windows Realport comm ports in DOS mode.