Signal Pin Assignments - Epson ES-1000C Reference Manual

Signal pin assignments

In this table, the direction of the signals is given relative to the
scanner.
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12 15
16
17
Return pin Signal
19 STROBE
20 DATA0
21 DATA1
22 DATA2
23 DATA3
24 DATA4
25 DATA5
26 DATA6
27 DATA7
28 ACKNLG
29 BUSY
- NC
- GND
- C-GND
I/O Comment
IN STROBE pulse to read in
or send out data. Pulse
width must be more than
0.5 microseconds at the
receiving terminal.
IN/OUT These signals represent
information of bits 1 to 8,
IN/OUT
respectively. Each signal is
at a High level when data is
IN/OUT
logical 1 and Low when it is
logical 0.
IN/OUT
IN/OUT
IN/OUT
IN/OUT
IN/OUT
OUT About a 12-microsecond
pulse. Low indicates that
data has been received and
that the scanner is ready to
accept more data.
OUT When this signal is High,
the scanner cannot receive
data. The signal becomes
High:
1) during data entry,
2) during scanning,
3) when the scanner is not
ready,
4) when a scanner error
occurs.
- Not used
- Logical ground level
- Scanner chassis ground
Interface Specifications
A-5