Interface specifications, Specifications and pin assignments, 10 technical specifications – Epson 1170 User Manual
Page 123
Interface Specifications
Your printer is equipped with a parallel interface
Specifications and pin assignments
The built-in parallel interface has the following characteristics:
Data format:
B-bit parallel
Synchronization:
STROBE pulse
Handshake timing:
BUSY and ACKNLG signals
Signal level:
TTL compatible level
Connector:
36-pin 57-30360 Amphenol connector or
equivalent
Connector pin assignments and a description of their respective
interface signals are shown in the following table.
Signal Return
Pin
Pin
Signal
Direction
Description
19
STROBE
in
STROBE pulse to read data. Pulse width
must be more than 0.5 microseconds at
the receiving terminal.
2
20
DATA
IN
These signals information of
represent
3
21
DATA 2 IN
the 1st to 8th bits of parallel data,
4
22
DATA 3 IN
respectively. Each signal is at HIGH level
5
23
DATA 4
IN
when data is logical and LOW when it
6
24
DATA 5
IN
is logical 0.
7
25
DATA 6
IN
8
26
DATA 7
IN
9
27
DATA 8
IN
10
28
ACKNLG
OUT
About an 1 l-microsecond pulse.
LOW indicates that data has been
received and that the printer is ready to
accept more data.
7-10
Technical Specifications