Epson Apex 20020 - Manual (Page 155)

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