I am going to need 3 different types of cables to hook up to my future router:
- DB9 RS422 (old classic Macs)
- mini-DIN8 RS422 (newer classic Macs)
- DB9 RS232 (new usb to serial converter)
The 3com documentation for a similar router has all of the pin-outs. The router uses an connector RJ-45 for the AUX serial and console ports, and a DB50(!) connector for the Serial port and the expansion card I bought.
So I went scavenging through the thrift store today to find some old serial cables. I found an old serial port adapter for a Parallel HP printer. It does not look like a real serial to parallel adapter (rather some printer-specific implementation), so I will be cutting off the nice mini-Din8 end of it to make a serial cable for my Mac SE or SE/30.
I bought some male DB9 to RJ45 modular adapters at the surplus electronics store earlier this month. I want to make sure that the pin-outs are correct on the router before I insert the pins in the adapters, because they are really hard to remove. This will connect to the 512K and 128K Macintoshes. I can just use a standard ethernet cable to connect to the router's AUX and console ports. Even though these Macs do not have TCP/IP, I hope the router has a telnet client built in. That will allow a normal serial terminal to connect to the router, then out to other machines.
The USB-serial adapter is easy, and only needs a straight through DB9 cable to connect to the AUX port adapter cable.
As for the DB50 connector, that is another story. I hope that it comes with an adapter cable!