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I have some old mainframe modems and online information on them are scarce (basically nothing outside of old ads). I'd like to figure out how it worked, but no
by non-entity 6y ago
I have some old mainframe modems and online information on them are scarce (basically nothing outside of old ads). I'd like to figure out how it worked, but no idea how to get started. Are the drivers something that the OS would support built-in, or would you have to install them somehow. Would this emulator help me at all?
- tyingq 6y agoDo you have a model number? It's most likely a synchronous modem meant for 4 wire leased lines, which don't really exist anymore.
- non-entity 6y agoYep, the model is 3865-2. Would it be possible to create a "fake" four wire leased line? I've looked into creating fake dial up lines for DSL modems and that seems to be possible.
- tyingq 6y agoShould be. The 4 wire connection is the round one on the back. You would need to crossover the tx and rx pairs between the modems. The other port is standard rs232.
- non-entity 6y agoCool, as far as protocol / communication standards go am I looking at one of the V.x standards?