Parallel port connector – IBM 5000 User Manual

Page 95

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Parallel Port Connector

Parallel ports are used to communicate with printers and other devices, such as
some CD-ROM and tape drives. Your server provides one 25-pin, D-shell
connector on the back of the server.

13

1

25

14

This parallel port connector conforms to the Institute of Electrical and Electronics
Engineers (IEEE) Standard 1284. There are three standard modes of operation:

Standard Parallel Port (SPP)
Enhanced Parallel Port (EPP)
Extended Capability Port (ECP)

Table 5 shows the pin-number assignments for the parallel port connector. The
signal names for all three modes are shown. SPP and ECP signal names are the
same; EPP signal names that are different are shown in parentheses.

Table 5. Parallel Port Connector Pin-Number Assignments

Pin

Signal

Pin

Signal

1

-STROBE (-WRITE)

14

-AUTO FD (-DSTRB)

2

Data 0

15

-ERROR

3

Data 1

16

-INIT

4

Data 2

17

-SLCT IN (-ASTRB)

5

Data 3

18

Ground

6

Data 4

19

Ground

7

Data 5

20

Ground

8

Data 6

21

Ground

9

Data 7

22

Ground

10

-ACK

23

Ground

11

BUSY (-WAIT)

24

Ground

12

PE

25

Ground

13

SLCT

Chapter 4. Installing Options

85

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