Connector Pin Assignments - Compaq Presario 305 Maintenance & Service Manual

Compaq.com Compaq Presario Maintenance and Service Guide - 305
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Connector Pin Assignments

This appendix provides connector pin assignment tables for Compaq Presario 305 Model 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 (*).
Parallel Connector
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
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Maintenance & Service Guide
Presario 305 Model
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| Removal & Replacement Procedures
Pin Assignments
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
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Connector
Connector
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| Specifications
Rear Connectors.
Serial Connector
Pin Signal
1 Carrier
2 Detect
3 Receive
4 Data
5 Transmit
6 Data
7 Data
8 Terminal
9 Ready
Signal
Ground
Data Set
Ready
Ready to
Send
Clear to
Send
Ring
Indicator
Keyboard/Mouse
Pin Signal