Compaq Presario 3500 Series - Connector Pin Assignments; Parallel Connector; Serial Connector; Universal Serial Bus (USB)

Compaq.com - Compaq Presario Maintenance and Service Guide - 3500 Series
United States December 9, 2002
Maintenance & Service Guide
Presario 3500 Series Personal Computers
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Parallel
Serial
Universal Serial Bus
(USB)
Keyboard
Mouse
VGA Monitor
Line-in
Speaker/Headphone
Out
Microphone
Phone Line to Wall
Phone Line to
Phone
Connector Pin Assignments
This section contains the connector pin assignments for the Presario 3500 series
of personal computers.
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
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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
Universal Serial Bus
Connector Pin Signal
1
2
3
4
- Data
+Data
Ground
+5 VDC
Keyboard
Connector Pin Signal
1
2
3
4
5
6
Data
Unused
Ground
+5 VDC
Clock
Unused
Mouse
Connector Pin Signal
1
2
3
4
5
6
Data
Unused
Ground
+5 VDC
Clock
Unused
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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
Volume Up
Ground
Ground Analog
Ground Analog
Ground Analog
+5 VDC
Ground
Volume Down
DDC Data
Horizontal Sync
Vertical Sync
DDC Clock
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Line In
Connector Connector
Stereo 1/8" Miniphone
Speaker/Headphone Out
Connector Connector
Stereo 1/8" Miniphone
Microphone
Connector Connector
Stereo 1/8" Miniphone
Phone Line to Wall Jack
Connector Pin Signal
1
2
3
4
Unused
Tip
Ring
Unused
Phone Line to Phone
Connector Pin Signal
1
2
3
4
Unused
Tip
Ring
Unused
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