Parallel Interface Specification - Epson C82314* User Manual

PARALLEL INTERFACE SPECIFICATION

The C82314* coax interface provides a Centronics parallel data input port to allow
automatic sharing of the Epson printer between the 3270 host and an alternate
host. The parallel interface was designed to be compatible with popular printer
interfaces found on personal
the
parallel interface signals:
PARALLEL INTERFACE SPECIFICATIONS
Signal Return
Pin
Pin
1
19
2 20
3
21
4
22
5. 23
6
24
7 25
8 26
9 27
10
28
computers. The following is a description of
Parallel
Signal
Cable
Pin
1
STROBE
2
DATA1
DATA2 3
DATA3 4
DATA4 5
DATA5 6
7
DATA6
DATA7 8
DATA8 9
ACKNLG 10
10
Direction Description
IN Strobe pulse to
read data in. Pulse
width must be
more than .5 µsec.
at the interface
IN These signals
IN represent infor-
IN mation in bits 1 to
IN 8 of parallel data
IN respectively. Each
IN signal is HIGH
IN when data is logical
IN 1 and LOW when it
is logical 0.
A LOW pulse with a
OUT
minimum width of 4
µsec. A low indi-
cates that data has
been received and
that the printer is
ready to accept
more data.