In the mid 90’s we used Cyclades multi-port serial cards to do this. These were PCI cards that connected to one or more breakout boxes that contained (in our c

In the mid 90’s we used Cyclades multi-port serial cards to do this. These were PCI cards that connected to one or more breakout boxes that contained (in our case) 16 RS-232 ports each. We had 48 total ports connected to a 60mhz Pentium with 32MB of RAM. This was a decidedly low budget solution, even at the time. There were also commercial offerings from vendors like Cisco and Livingston that provided a terminal server in a dedicated appliance form factor. edit the breakout boxes look like this: https://149707953.v2.pressablecdn.com/wp-content/uploads/imported/7/27/USED-CYCLADES-16-PORT-SERIAL-MODULE-SM16-170818533027-580x871.jpg https://149707953.v2.pressablecdn.com/wp-content/uploads/imp...