ACCULINK 316x DSU/CSU

Table D-9

X.21 Cable Interface

Signal

CCITT

Direction

Pin

Number

 

 

 

 

 

 

 

Signal Common

102

Ð

8

 

 

 

 

Transmitted Data

103

To DSU/CSU

2 (A)

 

 

 

9 (B)

 

 

 

 

Received Data

104

From DSU/CSU

4 (A)

 

 

 

11 (B)

 

 

 

 

Request-to-Send

105

To DSU/CSU

3 (A)

 

 

 

10 (B)

 

 

 

 

Data Channel Received Line Signal Detector

109

From DSU/CSU

5 (A)

 

 

 

12 (B)

 

 

 

 

Transmit Signal Element Timing (DTE Source)

113

To DSU/CSU

7 (A)

 

 

 

14 (B)

 

 

 

 

Receiver Signal Element Timing (DCE Source)

115

From DSU/CSU

6 (A)

 

 

 

13 (B)

 

 

 

 

D-14

January 1997

3160-A2-GB21-50

Page 163
Image 163
Paradyne 3160-A2-GB21-50 manual Table D-9 Cable Interface Signal