Serial Connectors and Flex-WAN Cables 183

RS-449 DTE Cable This cable connects the bridge/router to an RS-449 DCE.

Pinouts

Figure 37 Flex-WAN and RS-449 DTE Connectors

To SuperStack II NETBuilder

1

2

3

4

5

6

7

8

9

10

11 12

13

14

15

30 29 28 27 26 25 24 23 22 21 20 19 18 17 16

To DCE

31

32

33

34

35

36

37

38

39 40

41

42

43

44

45

1

2

3

4

5

6

7

8

9

10

11 12

13

14

15

16 17 18 19

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

60

59

58

57

56

55

54

53

52 51

50

49

48

47

46

20

21

22

23 24

25

26

27

28 29

30

31

32

33

34 35 36 37

 

 

 

 

 

 

 

 

 

 

 

 

 

 

60-pin Flex-WAN male connector

 

 

37-pin male connector

.

Table 31 RS-449 DTE Cable Pinouts

Flex-WAN Connector

 

RS-449 DTE Connector

 

Signal

Pin

Direction

Pin

Signal

Twisted Pair

 

 

 

 

 

 

CTS/RTS+

1

9

CS+

1

CTS/RTS-

2

27

CS-

 

 

 

 

 

 

 

DSR/DTR+

3

11

DM+

2

DSR/DTR-

4

29

DM-

 

 

 

 

 

 

 

DCD/DCD+

5

13

RR+

3

DCD/DCD-

5

31

RR-

 

 

 

 

 

 

 

DTR/DSR+

7

12

TR+

4

DTR/DSR-

8

30

TR-

 

 

 

 

 

 

 

RTS/CTS+

9

7

RS+

5

RTS/CTS-

10

25

RS-

 

 

 

 

 

 

 

TxD/RxD+

11

25

SD+

6

TxD/RxD-

12

4

SD-

 

 

 

 

 

 

 

TxCE/TxC+

13

17

TT+

7

TxCE/TxC-

14

35

TT-

 

 

 

 

 

 

 

Circuit Ground

15

-

19

SGRC

8

Circuit Ground

16

-

20

SGRC

 

 

 

 

 

 

 

TxC/RxC-

23

23

ST-

9

TxC/RxC+

24

5

ST+

 

 

 

 

 

 

 

RxC/TxCE-

25

26

RT-

10

RxC/TxCE+

26

8

RT+

 

 

 

 

 

 

 

RxD/TxD-

27

24

RD-

11

RxD/TxD+

28

6

RD+

 

(continued)

Page 183
Image 183
3Com NETBuilder SI, SuperStack II manual Flex-WAN and RS-449 DTE Connectors, RS-449 DTE Cable Pinouts