5.3
Presentation of the different modes
• Slave:
In this mode the computer alone can initialize a dialog and instruct the printer to send.
• Complete dialog:
In this mode both the computer and printer can initialize a dialog.
There is a check of the printer transmission.
NOTE
The printer dialogue is not permitted until after the start-up phase.
In general, control by the computer of the DTR signal from the printer
ensures that the latter is ready to dialog.
5.4
Suggested connection diagrams
5.4.1 Slave. Voltage transmission
WIRING DIAGRAM
RD
Calculator
ground
DSR
DTR
TD
RTS
CTS
DSR
DTR
TD
RD
RTS
CTS
Printer
CTS
position DSR
232
20 mA
422
DSR
CTS
GND
RTS
RXD
CTS
LOCATION OF JUMPERS
General
A13862 Version E
Page 2-7