Black Box LR5100A-T Manual do Utilizador descarregar pdf (Página 93)

Interface Pinouts

V.35 Link Pinouts

The connector pinouts described here correspond to the connector labeled “V.35” on

the back of the unit.

DB25

Contact

Number

M.34

Contact

Number

Circuit

Name

Direction

To From

DCE DCE

1 A Protective Ground NA

2 ----------

3 ----------

4 C Request to Send X

5 ----------

6 E Data Set Ready X

7 B Signal Ground NA

8 F Data Channel Received Line Signal Detector X

9 P Transmitted Data (A) X

10 S Transmitted Data (B) X

11 R Received Data (A) X

12 T Received Data (B) X

13 ----------

14 V Receiver Signal Element Timing (A) X

15 ----------

16 X Receiver Signal Element Timing (B) X

17 ----------

18 U Transmitter Signal Element Timing (A) DTE X

19 W Transmitter Signal Element Timing (B) DTE X

20 H Data Terminal Ready X

21 Local Loopback X

22 J Calling Indicator X

23 Y Transmitter Signal Element Timing (A) X

24 ----------

25 a Transmitter Signal Element Timing (B) X

Figure D - 8 V.35 Link Pin Outs

The connecting cable must be a shielded cable.

Circuits which are paired (contain an (A) and (B) reference) should be connected to twisted pairs

within the connecting cable.

NOTE For U.K. Approval:

The connecting cable may be any length between 0 and 5M. One end must be terminated in a male 34 pin

X.21 bis connector as defined in ISO-2593 1984. The other end must be terminated in a male 25 pin X.21 bis

connector as defined in ISO-2110 1989

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