Servicing Information

RS232C / V.24 Link Pinouts

Con

Circ

Circuit

Direction

tact

uit

Name

To

From

No.

 

 

DCE

DCE

 

 

 

1

AA

Protective Ground

NA

 

 

 

 

 

 

 

 

2

BA

Transmitted Data

X

 

 

3

BB

Received Data

 

 

X

4

CA

Request to Send

X

 

 

5

 

----------

 

 

 

6

CC

Data Set Ready

 

 

X

7

AB

Signal Ground

NA

 

 

8

CF

Received Line Signal Detector (CD)

 

 

X

9

 

----------

 

 

 

10

 

----------

 

 

 

 

 

 

 

 

 

11

 

----------

 

 

 

 

 

 

 

 

 

12

 

----------

 

 

 

 

 

 

 

 

 

13

 

----------

 

 

 

 

 

 

 

 

 

14

 

----------

 

 

 

15

DB

Transmit Signal Element Timing (DCE Source)

 

 

X

16

 

----------

 

 

 

17

DD

Receive Signal Element Timing (DCE Source)

 

 

X

18

 

Local Loopback

X

 

 

19

 

----------

 

 

 

20

CD

Data Terminal Ready

X

 

 

21

 

----------

 

 

 

22

CE

Ring Indicator

 

 

X

 

 

 

 

 

 

23

 

----------

 

 

 

 

 

 

 

 

 

24

DA

Transmit Signal Element Timing (DTE Source)

X

 

 

 

 

 

 

 

 

25

 

----------

 

 

 

 

 

 

 

 

 

Figure C-7 RS232 / V.24 Link Pinouts

The connecting cable must be a shielded cable.

NOTE For U.K. Approval:

The connecting cable may be any length between 0 and 5M. Each end must be terminated in a male 25 pin X.21 bis connector as defined in ISO-2110 1989.

83

Page 89
Image 89
Black Box LR1530A-EU-R3, LR1530A-R3 manual RS232C / V.24 Link Pinouts, Dce