HP qms 1660e Manuale Utente

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Cable Pinouts
B-9
Technical Specifications
RS-232C Serial
This table gives the correct pinouts for the 9-pin male RS-232C serial 
interface:
Pin Name
Pinout View from Printer Interface
1
Not Used
2
Receive Data (RXD)
3
Transmit Data (TXD)
4
Data Terminal Ready (DTR)
5
Signal Ground (GND)
6
Data Set Ready (DSR)
7
Ready To Send (RTS)
8
Clear To Send (CTS)
9
Reserved