Apple quadra 840av Servicehandbuch

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 Specifications
I/O Interfaces - 6
 
I/O Interfaces
 
Serial
 
Two RS-232/RS-422 ports (modem port is an Apple high-
performance serial port)
Printer port: mini DIN-8 connector
Modem port: mini DIN-9 connector (also supports mini DIN-8 
connector)
230.4 Kbaud maximum
0.920 mbit/sec. if external clock source is provided (modem 
interface only)
Asynchronous and synchronous communications supported up to 
9600 baud