Paradyne 317x E1 manual Table D-8 X.21 Cable Interface, Signal, Ccitt, Direction, Number

Models: 317x E1

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Table D-8

Pin Assignments

Table D-8

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)

 

 

 

 

3170-A2-GB20-20

December 1996

D-13

Page 128
Image 128
Paradyne 317x E1 manual Table D-8 X.21 Cable Interface, Signal, Ccitt, Direction, Number