Signal pin assignments, A-12, Interface specifications – Epson GT-6500 EN User Manual
Page 174
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Signal pin assignments
In this table, the direction of the signals is given relative to the
scanner.
Signal
I/O
50 Pin
No.
25 Pin
No.
Description
GND
1
−
12
14
−
25
35
−
37
39
−
40
42
7
−
9
14
16
18
24
Ground
NC
13
Not connected
DB0
I/O
26
8
Data bus 0
DB1
I/O
27
21
Data bus 1
DB2
I/O
28
22
Data bus 2
DB3
I/O
29
10
Data bus 3
DB4
I/O
30
23
Data bus 4
DB5
I/O
31
11
Data bus 5
DB6
I/O
32
12
Data bus 6
DB7
I/O
33
13
Data bus 7
DBP
I/O
34
20
Data bus parity
TERMPWR
38
25
Termination power (+5V)
ATN
I
41
17
Attention
BSY
I/O
43
6
Busy
ACK
I
44
5
Acknowledge
RST
I
45
4
Reset
MSG
O
46
2
Message
SEL
I/O
47
19
Select
C/D
O
48
15
Control/Data
REQ
O
49
1
Request
I/O
O
50
3
Input/Output
A-12
Interface Specifications
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