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Interface Specifications
The printer has the following resident interfaces:
• Parallel
l RS-232C/RS-422 serial
Parallel interface
Your printer is equipped with an 8-bit parallel interface.
ParalIel interface pin assignments
The parallel interface connector pin assignments and a description
of the interface signals are shown in the table below.
Signal Return
Pin
Pin
Signal Direction
Description
1
19
STROBE IN
The STROBE pulse to read data in. Pulse
width must be more than 0.5
microseconds at the receiving terminal.
2
20
DATA 1
IN
These signals represent parallel data bits
3 21
DATA2
IN
1 to 8, respectively. Each signal is at
4
22
DATA3
IN
HIGH level when data is logical 1 and at
5
23
DATA4
IN
LOW when it
IS
logical 0.
6
24
DATA5
IN
7
25
DATA6
IN
8
26
DATA7
IN
9
27
DATA8
IN
10
28
ACKNLG OUT
About a IO-microsecond pulse. LOW
indicates that data has been received
and the printer is ready to accept more
data.
A-8 Appendix A