Cables and Pin Assignments

EIA-530A-to-RS449 Cable Interface

The EIA-530A-to-RS449 adapter cable (Figure C-4) provides the RS449 interface shown in Table C-4.

98-15902

530

DB25

SIGNAL

PLUG

 

 

 

SHIELD

1

 

TD-A

2

 

TD-B

14

 

RD-A

3

 

RD-B

16

 

TXC-A

15

 

TXC-B

12

 

RXC-A

17

 

RXC-B

9

 

RTS-A

4

 

RTS-B

19

 

CTS-A

5

 

CTS-B

13

 

DTR

20

 

RLSD-A

8

 

RLSD-B

10

 

DSR

6

 

SIG. COMMON

7

 

RL

21

 

LL

18

 

RCV. COMMON

23

 

TT-A

24

 

TT-B

11

 

TM

25

 

SIG. COMMON

22

 

 

 

 

DB37 449

SOCKET SIGNAL

1SHIELD

4TD-A

22TD-B

6 RD-A

24RD-B

5 TXC-A

23TXC-B

8 RXC-A

26RXC-B

7 RTS-A

25RTS-B

9 CTS-A

27CTS-B

12DTR-A

13RR-A

31RR-B

11DM-A

19SIG. COMMON

14RL

10

LL

20

RCV. COMMON

17TT-A

35TT-B

18TM

29DM-B

30DTR-B

495-14323-01

Figure C-4. EIA-530A-to-RS449 Cable Pinouts (Feature Number 7900-F1-504)

C-8

December 1998

7975-A2-GB20-40

Page 110
Image 110
Paradyne 7975 manual EIA-530A-to-RS449 Cable Interface

7975 specifications

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