Epson 20020, 20040 Personal Computer User Manual


 
Computer
accessories
Intelligent serial interface board (8148)
Intelligent IEEE-488 interface board
(8165)
Internal 300/1200 baud modem card
(C203A-B)
External 300/1200 baud modem
(C202A-B)
Parallel Port Pin Assignments
Pin no.
Signal name
Direction
Description
1
-STROBE
2
DATA 0
3
DATA 1
4
DATA 2
5
DATA 3
6
DATA 4
7
DATA 5
8
DATA 6
9
DATA 7
10
-ACK
11
BUSY
12 PE
13
SLCT
14
-AUTO FD
15
-ERROR
16
-INIT
17
-SELECTIN
18-25 GND
I
I
I = Input
O = Output
O
O
O
O
O
O
O
O
O
I
I
I
O
O
O
-STROBE
Data Bit 0
Data Bit 1
Data Bit 2
Data Bit 3
Data Bit 4
Data Bit 5
Data Bit 6
Data Bit 7
-Acknowledge
Busy
Paper empty
Printer selected
-Auto paper feed
-Error
-Initialize
-Select in
Ground
Specifications A-7