Cables and Pin Assignments

V.35 User Data Port Connector

The following table provides the pin assignments for the 34-position

V.35 connector to the User Data terminal equipment.

Signal

ITU CT#

Direction

34-Pin Socket Connector

Signal Ground/Common

102

Ð

B

 

 

 

 

Request to Send (RTS)

105

To DSU (In)

C

 

 

 

 

Clear to Send (CTS)

106

From DSU (Out)

D

 

 

 

 

Data Set Ready (DSR)

107

From DSU (Out)

E

 

 

 

 

Received Line Signal Detector

109

From DSU (Out)

F

(RLSD or LSD)

 

 

 

 

 

 

 

Data Terminal Ready (DTR)

108/1, /2

To DSU (In)

H

 

 

 

 

Remote Loopback (RL)

140

To DSU (In)

N

 

 

 

 

Local Loopback (LL)

141

To DSU (In)

L

 

 

 

 

Transmitted Data (TXD)

103

To DSU (In)

P (A)

 

 

 

S (B)

 

 

 

 

Received Data (RXD)

104

From DSU (Out)

R (A)

 

 

 

T (B)

 

 

 

 

Transmitter Signal Element Timing Ð

113

To DSU (In)

U (A)

DTE Source (XTXC or TT)

 

 

W (B)

 

 

 

 

Receiver Signal Element Timing Ð

115

From DSU (Out)

V (A)

DCE Source (RXC)

 

 

X (B)

 

 

 

 

Transmitter Signal Element Timing Ð

114

From DSU (Out)

Y (A)

DCE Source (TXC)

 

 

AA (B)

 

 

 

 

Test Mode Indicator (TM)

142

From DSU (Out)

NN

 

 

 

 

7610-A2-GB20-10

November 1997

E-3

Page 118
Image 118
Paradyne SNMP DSU, 7610 manual User Data Port Connector, Signal, Direction Pin Socket Connector