Epson ActionTower 3000 Computer - Manuel (Page 121)

Connector Pin Assignments
Parallel port connector pin assignments (CN5)
Pin Signal Pin Signal
1 Strobe 10 ACK’
2 Data 0 11 BUSY
4
Data 2 13
Select 2 2
5 Data 3 14 AFD* 23
6 Data 4 15
Error* 2 4
7 Data 5 16 Init* 2 5
8 Data 6 17 selection*
9 Data 7 1 8 Signal ground
Pin Signal
19 Signal ground
20 Signal around
3
Data 1 12 PE
21
Signal ground
Signal ground
Signal ground
Signal ground
Signal ground
l
Active low logic
Serial port connector pin assignments (CN7 and CN6)
Pin Signal Pin Signal
1 I
Data carrier detect
6
Data set ready
I
2 Receive data 7 Request to send
3 Transmit data 8 Clear to send
4 Data terminal ready 9 Ring indicator
5 Ground
A-16 S p e c i f i c a t i o n s