Pin Assignments

Serial Crossover Cable

Use a serial crossover cable like the one shown in Figure D-6 (with an adapter wired like the cable in Figure D-5) to connect an external modem to the DSU/CSU’s COM port.

Pin 14

P1

P2

Pin 1

 

Pin 1

Plug

Plug

Pin 14

 

 

 

 

 

 

 

Pin 13

Pin 25

Pin 25

Pin 13

P1

Pin

Chassis Ground

 

1

TXD

2

RXD

3

RTS

4

CTS

5

DSR

6

Signal Ground

7

CD (RLSD)

8

 

9

 

10

 

11

 

12

 

13

 

14

 

15

 

16

 

17

 

18

 

19

DTR

20

 

21

 

22

 

23

 

24

 

25

 

 

Pin P2

1Chassis Ground

2TXD

3RXD

4RTS

5CTS

6DSR

7Signal Ground

8CD (RLSD)

9

10

11

12

13

14

15

16

17

18

19

20DTR

497-15180a

Figure D-6. Serial Crossover Cable

3162-A2-GB20-40

August 2000

D-7

Page 147
Image 147
HP 3162 manual Serial Crossover Cable, Pin P2