Black Box LR1530A-EU-R3 Manuel d'utilisateur télécharger pdf (Page 91)

Servicing Information

V.11 / X.21 Link Pinouts

Contact

No.

X.21

Circuits

Ref.

Circuit

Name

Direction

To From

DCE DCE

1 Protective Ground NA

2 T (A) Transmitted Data (A) X

3 C (A) Control (A) X

4 R (A) Received Data (A) X

5 I (A) Indication (A) X

6 S (A) Signal Element Timing (A) X

7 ----------

8 Ground Signal Ground NA

9 T (B) Transmitted Data (B) X

10 C (B) Control (B) X

11 R (B) Received Data (B) X

12 I (B) Indication (B) X

13 S (B) Signal Element Timing (B) X

14 ----------

15 ----------

Figure C-9 V.11 / X.21 Link Pinouts

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.

1 2 ... 86 87 88 89 90 91 92 93 94 95 96 ... 101 102

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Black Box LR1530A-EU-R3 Manuel d'utilisateur Page 91