Compart VLINE80-2 - Parallel Interface Pinout

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5.4.2 Parallel Interface
Parallel interface supports protocol with 36 pin CENTRONICS socket.
Figure 5.4.2
Pin No.
Signal
Source
Signal Definition
1
H
Data latch pulse, latch the data to the printer at the rising edge of the negative
pulse
2
H
Data 0(The lowest bit)
3
H
Data 1
4
H
Data
2
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
Printer response signal, indicates that the printer has received the last byte of data;
A negative pulse of about 1us.
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 paper end.
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 error occurs in the printer, the error
signal will output along with paper end signal.
33
Logic Ground
34~35
－
Unconnected
36
－
Unconnected
Note: H indicates that signal comes from Host computer, P indicates that signal comes from
Printer.