IBM 220 Serial ports, Parallel port connector, Parallel-port connector pin-number assignments

Models: 220

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Parallel port connector

Parallel port connector

The following table shows the pin-number assignments for the 25-pin, female D-shell parallel-port connector on the rear of the server.

 

 

13

 

1

 

 

 

25

 

14

 

 

 

 

 

 

 

Pin

I/O

 

SPP/ECP Signal

 

EPP Signal

 

 

 

 

 

 

1

O

 

-STROBE

 

-WRITE

 

 

 

 

 

 

2

I/O

 

Data 0

 

Data 0

 

 

 

 

 

 

3

I/O

 

Data 1

 

Data 1

 

 

 

 

 

 

4

I/O

 

Data 2

 

Data 2

 

 

 

 

 

 

5

I/O

 

Data 3

 

Data 3

 

 

 

 

 

 

6

I/O

 

Data 4

 

Data 4

 

 

 

 

 

 

7

I/O

 

Data 5

 

Data 5

 

 

 

 

 

 

8

I/O

 

Data 6

 

Data 6

 

 

 

 

 

 

9

I/O

 

Data 7

 

Data 7

 

 

 

 

 

 

10

I

 

-ACK

 

-ACK

 

 

 

 

 

 

11

I

 

BUSY

 

-WAIT

 

 

 

 

 

 

12

I

 

PE (paper end)

 

PE (paper end)

 

 

 

 

 

 

13

I

 

SLCT (select)

 

SLCT (select)

 

 

 

 

 

 

14

O

 

-AUTO FD (feed)

 

-AUTO FD

 

 

 

 

 

 

15

I

 

-ERROR

 

-ERROR

 

 

 

 

 

 

16

O

 

-INIT

 

-INIT

 

 

 

 

 

 

17

O

 

-SLCT IN

 

-SLCT IN

 

 

 

 

 

 

18

-

 

Ground

 

Ground

 

 

 

 

 

 

19

-

 

Ground

 

Ground

 

 

 

 

 

 

20

-

 

Ground

 

Ground

 

 

 

 

 

 

21

-

 

Ground

 

Ground

 

 

 

 

 

 

22

-

 

Ground

 

Ground

 

 

 

 

 

 

23

-

 

Ground

 

Ground

 

 

 

 

 

 

24

-

 

Ground

 

Ground

 

 

 

 

 

 

25

-

 

Ground

 

Ground

 

 

 

 

 

 

Table 4. Parallel-port connector pin-number assignments

Serial ports

Your server has two standard serial (communication) ports: serial port A and serial port B.

Some application programs require specific ports, and some modems function properly only at certain serial port addresses. You might need to use the

Chapter 5. Installing options 63

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IBM 220 manual Serial ports, Parallel port connector, Parallel-port connector pin-number assignments