Compaq DESKPRO 2000 SERIES Maintenance & Service Manual page 277

Connector and Icon
13 12 11 10 9
25 24 23 22
Connector
1 2 3
6 7
A - 2 Connector Pin Assignments
Parallel Interface
8 7 6 5 4 3 2 1
21 20 19 18 17 16 15 14
Serial Interface
4 5
8 9
Table A-3
Pin Signal
1 Strobe#
2 Data Bit 0
3 Data Bit 1
4 Data Bit 2
5 Data Bit 3
Data Bit 4
6
7 Data Bit 5
8 Data Bit 6
9 Data Bit 7
10 Acknowledge#
11 Busy
12 Paper End
13 Select
14 Auto Linefeed#
15 Error#
16 Initialize Printer#
17 Select IN#
18-25 Signal Ground
Table A-4
Pin Signal
1 Carrier Detect
2 Receive Data#
3 Transmit Data#
4 Data Terminal Ready
5 Signal Ground
6 Data Set Ready
7 Request to Send
8 Clear to Send
9 Ring Indicator