Lexmark C532N Technical Reference - Page 340
Protocol RS-232C
UPC - 734646258500
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8-24 Interfaces Protocol (RS-232C) Table 8-4 shows the state or function of each serial interface signal in the three data flow control protocols when the Honor DSR setting is On. Table 8-4: Serial Link (All Protocols) with Honor DSR On Printer DTR XON/XOFF Protocol (Honor DSR On) Always active DSR Data validity DTR Protocol (Honor DSR On) Flow control to computer Data validity CTS Ignored Flow control from computer DTR/DSR Protocol (Honor DSR On) Flow control to computer Flow control (transmit mode) to computer (receive mode) Ignored Table 8-5 shows the state of each serial interface signal in the three data flow control protocols when the Honor DSR setting is Off. Table 8-5: Serial Link (All Protocols) with Honor DSR Off Printer Signal XON/XOFF Protocol (Honor DSR Off) DTR Protocol (Honor DSR Off) DTR/DSR Protocol (Honor DSR Off) DTR (Output) Always active Flow control to computer Flow control to computer DSR (Input) Ignored Ignored1 Flow control to computer CTS (Input) Ignored Flow control from computer1 Ignored 1 These values are compatible with Hewlett-Packard Company's LaserJet printers.