QMS 2060, Reference

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The following table provides the pinouts for the printer’s optional 8-pin
LocalTalk interface:
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The following table provides the pinouts for a cable connecting the
Macintosh printer or modem port to the printer’s serial port.
» Note: To download printer system software from a Macintosh, you
must have this type cable. Make sure pins 4 and 5 are crisscrossed
as shown in this diagram.
Pin Name
Pinout View from Printer Interface
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
DIN-8 Male To Printer
DB-9 Female
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 together on the DIN-8 cable.