Docking Connector - Dell Inspiron 4100 Service Manual

Manual (160 pages)

Solution manual (146 pages)

User manual (139 pages)

Table of Contents

Parallel Connector

Use the 25-hole parallel connector to attach a parallel device to the computer. The parallel connector is used primarily for printers. The parallel connector

transmits data in parallel format, where 8 data bits (one byte) are sent simultaneously over eight separate lines.

The parallel connector can also be configured for compatibility with the PS/2 standard. Support for the EPP feature improves network adapter performance

(adapters connect to the computer's parallel connector and require the appropriate software drivers from the adapter's manufacturer).

If you reconfigure your hardware, you may need pin number and signal information for the parallel connector.

Signal I/O Definition

STB#

I/O

Strobe

I/O

Printer data bit 0

PD1

I/O

Printer data bit 1

PD2

I/O

Printer data bit 2

PD3

I/O

Printer data bit 3

PD4

I/O

Printer data bit 4

PD5

I/O

Printer data bit 5

PD6

I/O

Printer data bit 6

PD7

I/O

Printer data bit 7

ACK#

Acknowledge

BUSY

Busy

Paper end

SLCT

Select

AFD#

Automatic feed

ERR#

Error

INIT#

Initialize printer

SLIN# O

Select in

18-25 N/A

N/A

Ground signal

Shell

N/A

Frame ground