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Tally Dascom DT-210/230
7.4 Parallel interface
Parallel interface pin assignment
Parallel interface with 36 pin CENTRONICS socket.
Pin No.
Signal From
1
2
3
Pin No.
Signal From
4
5
6
7
8
9
10
11
12
13
14
15
16
Logic Ground
17
Frame Ground, separated from logic ground.
18
19~30
Logic Ground
31
32
33
Logic Ground
34~35
36
Unconnected
H indicates that signal comes from Host computer; P indicates that signal comes
from Printer.
Description
Strobe Signal; Data latch pulse, latch the data to
H
the printer at the rising edge of the negative
pulse.
H
Data 0 (The lowest bit)
H
Data 1
Description
H
Data 2
H
Data 3
H
Data 4
H
Data 5
H
Data 6
H
Data 7 (The highest bit)
ACK Signal; Printer response signal, indicates that
P
the printer has received a Data byte.
Busy Signal; The printer is busy; High level
P
indicates that the printer can't receive data.
PE Signal; Paper end signal; High level indicates
P
that the printer is out of paper.
－
Unconnected
－
Unconnected
－
Unconnected
－
Unconnected
－
Unconnected
Printer error signal. Low level indicates that an
P
error occurs in the printer. It will come with paper
end.
－
Unconnected
71
User Guide V1.3
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