3com 3013 (3C13613) User Manual

C

HAPTER

 A: O

PTIONAL

 C

ABLE

 S

PECIFICATIONS

Figure 33   V.35 DCE Cable Assembly

Table 34 describes V.35 DCE cable pinouts.

Figure 34 illustrates the X.21 DTE cable.

V.35 DCE cable Pinouts

 

31

CTS/RTS

<—

C

RTS

2

RTS/CTS

—>

D

CTS

26

DTR/DSR

—>

E

DSR

1

LL/DCD

—>

F

RLSD

6

DSR/DTR

<—

H

DTR

30

DCD/LL

<—

K

LT

20

RxD/TxD+

<—

P

SD+

44

RxD/TxD-

<—

S

SD-

15

TxD/RxD+

—>

R

RD+

39

TxD/RxD-

—>

T

RD-

19

RxC/TxCE+

<—

U

SCTE+

43

RxC/TxCE-

<—

W

SCTE-

17

NIL/RxC+

—>

V

SCR+

41

NIL/RxC-

—>

X

SCR-

16

TxCE/TxC+

—>

Y

SCT+

40

TxCE/TxC-

—>

AA

SCT-

50

GND

-

A

Shield_GND

7

GND

-

B

Circuit_GND

24

RxD-REST

GND

-

-

49

RxC-REST

GND

-

-

25

TxC-REST

GND

-

-

Enlarged A side

DB50 Male

V.35 Female

Label

Enlarged B side