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Interface Specifications
The printer has the following resident interfaces:
Centronics parallel
RS-232C serial
Parallel interface
Your printer is equipped with an 8-bit parallel interface.
Parallel interface pin assignments
The parallel interface connector pin assignments and a description of
the interface signals are shown in the table below.
Signal Pin Return Pin Signal
1
19
STROBE
Direction Description
IN
The STROBE pulse to
read data in. Pulse width
must be more than 0.5
microseconds at the
receiving terminal. This
terminal is “High” usually;
reading data starts when
the terminal goes “Low.”
2
20 DATA
1
IN
These signals represent
3
21
DATA
2
IN
parallel data bits 1 to 8,
4
22 DATA
3
IN
respectively. Each signal
5
23 DATA
4
IN
is at HIGH level when
6
24 DATA
5
IN
data is logical 1 and at
7
25
DATA
6
IN
LOW level when it is
8
26
DATA
7
IN
logical 0.
9
27 DATA
8
IN
8-12
Technical Specifications