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United States January 3, 2003
Presario 1600 Series
Models: 1683, 1685, 1687, 1688, 1690, 1692, 1693, and 1694
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments
Index
Connector Pin Assignments
This appendix provides connector pin assignment tables for Compaq Presario Series Portable
Computers. For more information on connectors, refer to the section on Rear Connectors.
NOTE: The signals in all tables of this appendix are considered "active high" unless otherwise
indicated by an asterisk (*).
● Parallel Connector
● Serial Connector
● Keyboard/Mouse
● External VGA Monitor
● Universal Serial Bus
● Modem
Parallel Connector
Pin Signal Pin Signal
1 Strobe* 10 Acknowledge*
2 Data Bit 0 11 Busy
3 Data Bit 1 12 Paper Out
4 Data Bit 2 13 Select
5 Data Bit 3 14 Auto Linefeed*
6 Data Bit 4 15 Error*
7 Data Bit 5 16 Initialize Printer*
8 Data Bit 6 17 Select In*
9 Data Bit 7 18-25 Signal Ground
* = Active low
Serial Connector
Connector Pin Signal
1
2
3
4
5
6
7
8
9
Carrier Detect
Receive Data
Transmit Data
Data Terminal Ready
Signal Ground
Data Set Ready
Ready to Send
Clear to Send
Ring Indicator
Keyboard/Mouse
Connector Pin Signal
1
2
3
4
5
6
Data 1
Data 2
Ground
+5 V
Clock 1
Clock 2
External VGA Monitor
Connector Pin Signal
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Red Analog
Green Analog
Blue Analog
Not connected
Ground
Ground Analog
Ground Analog
Ground Analog
Not connected
Ground
Monitor Detect
DDC2B Data
Horizontal Sync
Vertical Sync
DDC2B Clock
Universal Serial Bus
Connector Pin Signal
1
2
3
4
+5V
Data -
Data +
Ground
Modem
Connector Pin Signal
1
2
3
4
5
6
Unused
Unused
Tip
Ring
Unused
Unused
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