Epson C11C605001 - DFX 9000 B/W Dot-matrix Printer Service Manual page 150

Pin No.
1-6
7
9
10
11
12
13
14
15
16
17
18
19-24
25-28
29-36
Rev. A
Table A-4. CN5 Pin Assignments
Signal Name
o
TXD
0
READY
RXD
—
NC
o
RESET
0
I
I
I
o
WR
0
0
—
GND
o
A3-AO
Description
+5 VDC
Transmitted data
Ready signal
Received data
Not connected
Reset signal
l/F disabled
Request command
l/F ready
Data read request
Wriie enable
Read enable
Chip select
Ground
Address bus bit 3-O
Data
bus bit 7-O
Appendix
A-7