Compaq Presario 1900 XL1 Maintenance & Service Manual page 18

Pin Assignments Section
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin
Removal Sequence
Product Description
Pin Assignments
This appendix provides connector pin assignment tables for Compaq Presario 1900 Series Portable
Computers. For more information on connectors, refer to the section on
NOTE: The signals in all tables of this appendix are considered active high unless otherwise
indicated by an asterisk (*).
Pin Signal
1 Strobe*
2 Data Bit 0
3 Data Bit 1
4 Data Bit 2
5 Data Bit 3
6 Data Bit 4
7 Data Bit 5
8 Data Bit 6
9 Data Bit 7
* = Active low
file:///C|/download/www.compaq.com/athome/support/msgs/1900XL/8pin.html (1 of 4)6/27/2004 11:45:56 AM
Maintenance & Service Guide
Presario 1900 Series
Specifications
Troubleshooting
Pin Assignments
Parallel Connector
Serial Connector
United States
Pin Signal
10 Acknowledge*
11 Busy
12 Paper Out
13 Select
14 Auto Linefeed*
15 Error*
16 Initialize Printer*
17 Select In*
18-25 Signal Ground
June 27, 2004
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Battery Operations
Index
Rear Connectors.