HP 1234, 1242 manual Connector Pin Assignments

Presario 1200 Series

Models: 1234, 1235, 1236, 1237, 1238, 1240, 1242, 1250, and 1252

Before You Begin	Specifications	Parts Catalog
Removal Sequence	Troubleshooting	Battery Operations
		Index
Product Description	Pin Assignments

Connector Pin Assignments

This appendix provides connector pin assignment tables for Compaq Presario 1200 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

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

1Carrier Detect

2Receive Data

3Transmit Data

4Data Terminal Ready

5Signal Ground

6Data Set Ready

7Ready to Send

8Clear to Send

9Ring Indicator

Keyboard/Mouse

Connector Pin Signal

1Data 1

2Data 2

3Ground

4+5 V

5Clock 1

6Clock 2

External VGA Monitor

Connector Pin Signal

1Red Analog

2Green Analog

3Blue Analog

4Not connected

5Ground

6Ground Analog

7Ground Analog

8Ground Analog

9Not connected

10Ground

11Monitor Detect

12DDC2B Data

13Horizontal Sync

14Vertical Sync

15DDC2B Clock

Universal Serial Bus

Connector Pin Signal

1+5V

2Data -

3Data +

4

Ground

Modem

Connector Pin Signal

1Unused

2Unused

3Tip

4Ring

5Unused

6Unused