TABLE A-1RS-449 Connector Pin Assignments (Continued)

80-Pin Amp.

RS-449

RS-449

 

Pin No.

Signal Name

DB-37 Pin No.

Description

 

 

 

 

38

CTS2(B)

27

Port 2 Clear To Send

39

RxC2(A)

8

Port 2 Receive Clock

40

RxC2(B)

26

Port 2 Receive Clock

Shield Ground

SG

1

Port 2 Shield Ground and Signal

 

 

 

ground

41

RxD3(A)

6

Port 3 Receive Data

42

RxD3(B)

24

Port 3 Receive Data

43

DTR3(A)

12

Port 3 Data Terminal Ready

44

DTR3(B)

30

Port 3 Data Terminal Ready

45

TxD3(A)

4

Port 3 Transmit Data

46

TxD3(B)

22

Port 3 Transmit Data

47

RTS3(A)

7

Port 3 Request To Send

48

RTS3(B)

25

Port 3 Request To Send

49

TxC3(A)

17

Port 3 Transmit Clock

50

TxC3(B)

35

Port 3 Transmit Clock

51

TxCI3(A)

5

Port 3 Transmit Clock In

52

TxCI3(B)

23

Port 3 Transmit Clock In

53

DCD3(A)

13

Port 3 Data Carrier Detect

54

DCD3(B)

31

Port 3 Data Carrier Detect

55

DSR3(A)

11

Port 3 Data Set Ready

56

DSR3(B)

29

Port 3 Data Set Ready

57

CTS3(A)

9

Port 3 Clear To Send

58

CTS3(B)

27

Port 3 Clear To Send

59

RxC3(A)

8

Port 3 Receive Clock

60

RxC3(B)

26

Port 3 Receive Clock

Shield Ground

SG

1

Port 3 Shield Ground and Signal

 

 

 

Ground

61

RxD4(A)

6

Port 4 Receive Data

62

RxD4(B)

24

Port 4 Receive Data

63

DTR4(A)

12

Port 4 Data Terminal Ready

64

DTR4(B)

30

Port 4 Data Terminal Ready

 

 

 

 

Appendix A Cable Pin Assignments & Signals 25

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Image 45
Sun Microsystems Interface Adapter manual Appendix a Cable Pin Assignments & Signals