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Maintenance & Service Guide
Presario 1600 Series
Models: 1650 and 1655

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Connector Pin Assignments

This appendix provides connector pin assignment tables for Compaq Presario 1600 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

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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
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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
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2

3

4

5

6

Data

Not defined

Ground

+5 VDC

Clock

Not defined

 

External VGA Monitor

Connector Pin Signal
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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
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2 D+

3 D-

4 Power

 

 

Port Replicator

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Pin Signal Pin Signal Pin Signal Pin Signal
1 N.C. 21 Printer Data 0 41 N.C. 61 CTS
2 N.C. 22 Printer Data 1 42 N.C. 62 DCD
3 Kb Clk 1 23 Printer Data 2 43 Switch A 63 DSR
4 Joystick Data A 24 Printer Data 3 44 Switch B 64 TXD
5 Kb Data 1 25 Printer Data 4 45 Switch C 65 RTS
6 Joystick Data B 26 Printer Data 5 46 Switch D 66 N.C.
7 Kb Clk 2 27 Printer Data 6 47 N.C. 67 Detect
8 Joystick Data C 28 Printer Data 7 48 MIDI In 68 N.C.
9 Kb Data 2 29 USB 0 - 49 MIDI Out 69 V. Sync
10 Joystick Data D 30 USB 0 + 50 +5V 70 Ground
11 Lp Select In 31 USB 1 - 51 +5V 71 H. Sync
12 Lp Paper End 32 USB 1+ 52 N.C. 72 Ground
13 Lp Initialize 33 Adapter In 53 N.C. 73 Blue
14 Lp Busy 34 Adapter In 54 N.C. 74 Ground
15 Lp Error 35 Adapter In 55 N.C. 75 Green
16 Lp Ack 36 Adapter In 56 Dock ID - 76 Ground
17 Lp Auto Feed 37 Adapter In 57 RXD 77 Red
18 Lp Strobe 38 Adapter In 58 Lp Select 78 Ground
19 DDC2BC 39 N.C. 59 RI 79 N.C.
20 DDC2BD 40 N.C. 60 DTR 80 N.C.

 

Modem

Connector Pin Signal
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2

3

4

5

6

Unused

Unused

Tip

Ring

Unused

Unused

 
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