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COMSPHERE 3500 Series Data Service Units
A-4 January 1998 3510-A2-GN32-50
Table A-5
Model 3510 DSU 34-Pin V.35 Connector Pins
Pins
V.35
Identifier
CCITT
Identifier
Function
B
P, S
R, T
C
D
E
F
HH
KK
U, W
Y, AA
V, X
L
NN
AB
BA
BB
CA
CB
CC
CF
—
—
DA
DB
DD
LL
TM
102
103 a, b
104 a, b
105
106
107
109
—
—
113 a, b
114 a, b
115 a, b
141
142
Signal Ground
Transmitted Data (TXD)
Received Data (RXD)
Request-to-Send (RTS)
Clear-to-Send (CTS)
Data Set Ready (DSR)
Line Signal Detect (LSD)
Positive Test Voltage
Negative Test Voltage
Transmitter Signal Element Timing – DTE Source
Transmitter Signal Element Timing – DCE Source
Receiver Signal Element Timing – DCE Source
Local Loopback
Test Mode
Figure A-2. Model 3511 DSU Rear Connector Plate