3-22 Chapter 3

RS-232 Null-Modem Cable (Crossover)

DCP PORT

 

DB25 FEMALE

TERMINAL

CHASSIS GROUND

1

1

TRANSMIT DATA

TRANSMIT DATA

2

2

RECEIVE DATA

RECEIVE DATA

3

3

REQUEST TO SEND

REQUEST TO SEND

4

4

CLEAR TO SEND

CLEAR TO SEND

5

5

DATA SET READY

DATA SET READY

6

6

SIGNAL GROUND

SIGNAL GROUND

7

7

DATA CARRIER DETECT

DATA CARRIER DETECT

8

8

TRANSMIT CLOCK

TRANSMIT CLOCK

15

15

RECEIVE CLOCK

RECEIVE CLOCK

17

17

DATA TERMINAL READY

DATA TERMINAL READY

20

20

Figure 3-16 (Not Supplied by Emulex)

RS-232 Three-Wire Port Cable

DCP PORT

1 z

CHASSIS GROUND

 

 

 

TRANSMIT DATA

TRANSMIT DATA

2 z

 

RECEIVE DATA

RECEIVE DATA

3 z

 

SIGNAL GROUND

7 z

 

 

 

 

 

DTE

z1

z2

z3

z7

Figure 3-17

Page 55
Image 55
Emulex DCP_link manual RS-232 Three-Wire Port Cable, Not Supplied by Emulex