Rs-422A Interface - Star Micronics TSP400 Series Programmer's Manual

4-3-2. RS-422A Interface

Pin no Signal name
9 SD(+)
10 SD(–)
17 RD(+)
18 RD(–)
19 CS(+)
23 CS(–)
24 RS(+)
25 RS(–)
Direction Function
OUT
These pins carry data from the printer.
OUT
IN
These pins carry data to the printer.
IN
IN The host sets this signal to "SPACE" when it
is ready to send.
NOTE: The printer does not monitor this
signal.
IN
The host sets this signal to "SPACE" when it
is ready to receive.
NOTE: The printer does not monitor this
signal.
The printer sets this signal to "SPACE" when
OUT
it is ready to receive.
OUT The printer sets this signal to "SPACE" when
it is ready to receive.
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