Specifications

B-1
Appendix B: I/O Port Pin Assignments
Appendix B: I/O Port Pin Assignments
Parallel Port
Pin Signal Pin Signal
1 Strobe# 14 Auto Linefeed#
2 Data 0 15 Error#
3 Data 1 16 Initialize#
4 Data 2 17 Select In
5 Data 3 18 Ground
6 Data 4 19 Ground
7 Data 5 20 Ground
8 Data 6 21 Ground
9 Data 7 22 Ground
10 ACK# 23 Ground
11 Busy 24 Ground
12 Paper Empty 25 Ground
13 Select
Serial Port
Pin Signal
1 DCD (Data Carrier Detect)
2 RXD (Received Data)
3 TXD (Transmitted Data)
4 DTR (Data Terminal Ready)
5 GND (Signal Ground)
6 DSR (Data Set Ready)
7 RTS (Request To Send)
8 CTS (Clear To Send)
9 RI (Ring Indicator)
RCA Jack
Pin Signal
1 Video-In
2 GND