HP SM 1800t, 1800, XL280, XL390 Maintenance and Service Guide ch4pin

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Presario 1800/1800T Series

Models: XL280, XL380, XL381,

and XL390

Pin Assignments

This chapter provides the pin assignments for Presario 1800XL Series Notebook
connectors. For additional information about connectors or external ports, refer to

Rear Connectors

Note: The signals in all tables of this appendix are considered active high unless
otherwise indicated by an asterisk (*).

Parallel Connector

and QuikDock Connectors.

Pin Signal Pin Signal

1Strobe* 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 Line Feed*

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

*Signal is active low.

P

RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE

1800 S

ERIES

PIN A

SSIGNMENTS

1