Dascom DT-230 User Guide - Manual (Page 40)

Tally Dascom DT-210/230
29
5 H Data 3
6 H Data 4
7 H Data 5
8 H Data 6
9 H Data 7 (The highest bit)
10 P
ACK Signal; Printer response signal, indicates that
the printer has received a Data byte.
11 P
Busy Signal; The printer is busy; High level
indicates that the printer can’t receive data.
12 P
PE Signal; Paper end signal; High level indicates
that the printer is out of paper.
13 － Unconnected
14 － Unconnected
15 － Unconnected
16 Logic Ground
17 Frame Ground, separated from logic ground.
18 － Unconnected
19~30 Logic Ground
31 － Unconnected
32 P
Printer error signal. Low level indicates that a
error occurs in the printer. It will come with paper
end.
33 Logic Ground
34~35 － Unconnected
36 Unconnected
H indicates that signal comes from Host computer; P indicates that signal comes from
Printer.
Parallel interface connector diagram