Appendix B: Cabling Diagrams

Cabling for the CCM and 6-Channel CEMs (continued)

PIN 1

DB25

 

MALE

 

P1

TD

2

RD

3

CTS

5

DSR

6

GND

7

UNASSIGNED

11

RX CLOCK

18

DTR

20

EXTERNAL TX CLOCK

24

BUSY

25

TO MULTISERVER

DB25

MALE

P2

3

RD

2TD

4

RTS

 

 

20

DTR

7GND

5CTS

15TX CLOCK

6DSR

17RX CLOCK

22RI

TO X.21 BIS

LINE TERMINALS

Figure B-5. X.21 bis Line Terminator and Composite Cable.

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