^ What LCGuy said.
The DB25 connector is probably for a PC parallel or serial port. For most purposes, they are compatible. RS232 (PCs) uses mostly a TX line (transmit) and RX (receive) for signals, and also +V and ground. The Mac 8-pin mini-DIN is RS422 which is differential serial over twisted pairs, so there is a +TX and -TX, with a +RX and -RX. I don't have links handy but if you do a google image search for RS232 and RS422 pinout, or connector, you should see some diagrams. The other control wires are not used for 99% of serial applications so you probably don't need to worry about those. IIRC I had best luck using the -TX and -RX on the serial adaptor I made last year for my Mac.
In use you will just need to find a suitable driver, and see what speed connection your LC can maintain. I recommend starting with 22k and going from there. If it can handle 33k, go up to 56k. If not, drop it down to the next slower one (22k?)
Good luck!
The DB25 connector is probably for a PC parallel or serial port. For most purposes, they are compatible. RS232 (PCs) uses mostly a TX line (transmit) and RX (receive) for signals, and also +V and ground. The Mac 8-pin mini-DIN is RS422 which is differential serial over twisted pairs, so there is a +TX and -TX, with a +RX and -RX. I don't have links handy but if you do a google image search for RS232 and RS422 pinout, or connector, you should see some diagrams. The other control wires are not used for 99% of serial applications so you probably don't need to worry about those. IIRC I had best luck using the -TX and -RX on the serial adaptor I made last year for my Mac.
In use you will just need to find a suitable driver, and see what speed connection your LC can maintain. I recommend starting with 22k and going from there. If it can handle 33k, go up to 56k. If not, drop it down to the next slower one (22k?)
Good luck!