Specifications

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 GND
6 Data 4 19 GND
7 Data 5 20 GND
8 Data 6 21 GND
9 Data 7 22 GND
10 ACK# 23 GND
11 Busy 24 GND
12 Paper Empty 25 GND
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)
Appendix B: I/O Port Pin Assignments B-1