An AppleLine used with a Macintosh XL should be connected to the XL's serial
port B; select Printer Port in the Capatibility dialog box (Settings menu).
The AppleLine document that accompanies MacTerminal should work in most
connections. To create your own, select the following options in the
Compatibility and Terminal dialog boxes (both in the Settings menu). Select:
3278, AppleLine, 9600 baud, 7 bits and even parity.
Use the standard Lisa/Macintosh XL to Imagewriter I cable (pn 590-0037) with a
modem elimator cable (P/N 590-0029).