Konica Minolta QMS magicolor CX Reference - Manual (Page 141)

Pinout and
Cable
Specifications
3-7 Technical Specifications
LocalTalk (Optional Interface) Pinouts
These are the pinouts for the optional 8-pin LocalTalk cable:
Macintosh to Serial Pinouts
These are the pinouts for a cable connecting the Macintosh printer or
modem port to the printer’s serial port. To download printer system
software from a Macintosh, you must have this type cable.
Pin Name
1,2,7 Reserved
3 Transmit Data - (TXD)
4 Signal Ground (GND)
5 Receive Data - (RXD)
6 Transmit Data + (TXD)
8 Receive Data + (RXD)
To
Macintosh
DB-9 To
Printer
Din-8
HandshakeOut 1 7 RTS
HandshakeIn 2 8 CTS
TXD- 3 3 TXD
RXD- 5 2 RXD
GND,RXD+ 4,8* 5 GND
6 Not Used
7 Not Used
* Pins 4 and 8 must be connected on the Din-8.