A

Connector Pin Assignments

This appendix contains the pin assignments for many computer and workstation connectors.

Some of these connectors may not be used on the product being serviced.

Enhanced Keyboard

Connector and Icon

4

5

6

Pin

1

2

3

Signal

Data

Unused

Ground

+5 VDC

Clock

Unused

Mouse

Connector and Icon

4

5

6

Pin

1

2

3

Signal

Data

Unused

Ground

+5 VDC

Clock

Unused

Ethernet BNC

Connector and Icon Pin

1 (Center)

2 (Shield)

Signal

Data

Ground

Service Reference Guide, dc5000 360201-002 A–1

Connector Pin Assignments

Ethernet RJ-45

Connector and Icon

Ethernet AUI

5

6

7

8

Pin

1

2

3

4

Signal

(+) Transmit Data

(-) Transmit Data

(+) Receive Data

Unused

Unused

(-) Receive Data

Unused

Unused

Connector and Icon

5

6

7

8

Pin Signal

1

2

3

4

Ground

Negative AUI Differential Collision

Positive AUI Differential Collision

Negative AUI Differential Transmit

Positive AUI Differential Transmit

Ground

Ground

Negative AUI Differential Receive

Pin Signal

9

10

11

12

Positive AUI Differential Receive

+12V

Ground

Ground

13

14

15

16

Unused

Unused

Unused

Unused

A–2 360201-002 Service Reference Guide, dc5000

Connector Pin Assignments

Parallel Interface

Connector and Icon

4

5

6

Pin

1

2

3

Signal

Strobe

Data Bit 0

Data Bit 1

Data Bit 2

Data Bit 3

Data Bit 4

Pin

7

8

9

10

11

12

Connector and Icon

Signal

Data Bit 5

Data Bit 6

Data Bit 7

Acknowledge

Busy

Paper End

Serial Interface, Powered and Non-Powered

Connector and Icon Pin

4

5

6

1

2

3

7

8

9

USB

Pin

1

2

3

4

Signal

+5 VDC

- Data

+ Data

Ground

Microphone

Connector and Icon (1/8" miniphone) Pin

1 (Tip)

2 (Ring)

Signal

Audio

Power

3 (Shield) Ground

Pin

13

14

15

16

17

18-25

Signal

Select

Auto Linefeed

Error

Initialize Printer

Select IN

Signal Ground

Signal

Carrier Detect (12V if powered)

Receive Data

Transmit Data

Data Terminal Ready

Signal Ground

Data Set Ready

Request to Send

Clear to Send

Ring Indicator (5V if powered)

Service Reference Guide, dc5000 360201-002 A–3

Connector Pin Assignments

Headphone

Connector and Icon (1/8" miniphone) Pin

1 2 3

1 (Tip)

2 (Ring)

Signal

Audio_Left

Audio_Right

3 (Shield) Ground

Line-In Audio

Connector and Icon (1/8" miniphone) Pin

1 2 3

1 (Tip)

2 (Ring)

Signal

Audio_In_Left

Audio_In_Right

3 (Shield) Ground

Line-Out Audio

Connector and Icon (1/8" miniphone) Pin

1 2 3

1 (Tip)

2 (Ring)

Signal

Audio_Out_Left

Audio_Out_Right

3 (Shield) Ground

SCSI Low Voltage Differential/Single Ended (LVD/SE)

Connector and Icon

Pin

1-16

17-18

19

20-34

35

36

37

38

39

Signal

Ground

TERMPWR

Reserved

Ground

-D12

-D13

-D14

-D15

-DP1

43

44

45

46

47

48

Pin Signal

40

41

42

-D0

-D1

-D1

-D3

-D4

-D5

-D6

-D7

-DP0

54

55

56

57

58

59

Pin

49-50

51-52

53

Signal

Ground

TERMPW

Reserved

Ground

-ATN

Ground

-BSY

-ACK

-RST

63

64

65

66

67

68

Pin

60

61

62

Signal

-MSG

-SEL

-C/D

-REQ

-I/O

-D

-D

-D

-D

A–4 360201-002 Service Reference Guide, dc5000

Connector Pin Assignments

Ultra SCSI

Connector and Icon

Pin

1-11

12

13

14

15-25

26

27

28

Signal

Ground

Reserved

Open

Reserved

Ground

DB0

DB1

DB2

Pin

29

30

31

32

33

34

35

36

Signal

DB3

DB4

DB5

DB6

DB7

DBP

Ground

Ground

Pin

37

38

39

40

41

42

43

44

External Infrared Transceiver

Connector and Icon

Signal

Reserved

TERMPWR

Reserved

Ground

ATN #

Ground

BSY #

ACK #

Pin Signal

45

46

47

48

49

50

RST #

MSG #

SEL #

C/D

REQ #

Input/Output

Pin

1

2

3

Monitor

Signal

Transmit

Receive

Ground

Pin

4

5

6

Signal

5V

Mode

Not Used

Connector and Icon

Pin

7

8

Signal

Not Used

Not Used

Pin

1

2

3

4

5

Signal

Red Analog

Green Analog

Blue Analog

Not used

Ground

Pin

6

7

8

9

10

Signal

Ground

Ground

Ground

+5V (fused)

Ground

Pin

11

12

13

14

15

Signal

Not used

DDC Serial Data

Horizontal Sync

Vertical Sync

DDC Serial Clock

Service Reference Guide, dc5000 360201-002 A–5

Connector Pin Assignments

ATA/ATAPI (IDE) Standard Drive Cable

Connector

6

7

8

9

10

11

12

13

14

Pin

1

2

3

4

5

20-Pin Power

Signal

Reset

Ground

DD7

DD8

DD6

DD9

DD5

DD10

DD4

DD11

DD3

DD12

DD2

DD13

20

21

22

23

24

25

26

27

28

Pin

15

16

17

18

19

Signal

DD1

DD14

DD0

DD15

Ground

(Key)

DMARQ

Ground

DIOW

Ground

DIOR

Ground

IORDY

CSEL

34

35

36

37

38

39

40

Pin

29

30

31

32

33

Signal

DMAK

Ground

INTRQ

IOCS16

DA1

PDIAG (cable detect)

DA0

DA2

CS1FX

CS3FX

DASP

Ground

Connector

20 11

10

Pin Signal

1

2

3

4

5

+3.3 V

+3.3 V

GND

+5 V

GND

Pin

6

7

8

9

10

Signal

+5 V

GND

POK

+5 Vaux

+12 V

*Open for d300 series computers; -5V for all others

1

Pin Signal

11

12

13

14

15

+3.3 V

-12 V

GND

PSON

GND

4-Pin Power (for CPU)

Connector and Icon

2

3

Pin

1

4

Signal

GND

GND

+12 V

-12 V

A–6 360201-002

Pin Signal

16

17

18

19

20

GND

GND open*

+5 V

+5 V

Service Reference Guide, dc5000