COMSPHERE 3550 Series Data Service Units
D-6
July 1999
3550-A2-GB20-40
99-16294
Figure D-4. V.35 Adapter Plug
Table D-6
V.35 Connector Pin Assignments
25-Pin Connector
(Rear Connector
Plate)
34-Pin Connector
(V.35 Adapter)
Circuit Name
Pin Number
Pin Number
7
B
Signal Ground
4
C
Request-to-Send (RTS)
5
D
Clear-to-Send (CTS)
6
E
Data Set Ready (DSR)
8
F
Received Line Signal Detect (LSD)
20
H
Data Terminal Ready (DTR)
21
J
Ring Indicator (RI)
18
L
Local Loopback (LL)
19
N
Remote Digital Loopback (RL)
24, 11
P, S
Transmit Data (TXD)
23, 22
R, T
Received Data (RXD)
15, 2
U, W
Transmitter Signal Element Timing – DTE Source
16, 3
V, X
Receiver Signal Element Timing – DCE Source
14, 1
Y, AA
Transmitter Signal Element Timing – DCE Source
9
HH
Positive DC test voltage
10
KK
Negative DC Test Voltage
25
NN
Test Mode (TM)
Summary of Contents for COMSPHERE 3550 Series
Page 4: ...COMSPHERE 3550 Series Data Service Units C July 1999 3550 A2 GB20 40 Notices...
Page 12: ...COMSPHERE 3550 Series Data Service Units vi July 1999 3550 A2 GB20 40...
Page 68: ...COMSPHERE 3550 Series Data Service Units 4 22 July 1999 3550 A2 GB20 40...
Page 98: ...COMSPHERE 3550 Series Data Service Units 5 30 July 1999 3550 A2 GB20 40...
Page 100: ...COMSPHERE 3550 Series Data Service Units A 2 July 1999 3550 A2 GB20 40...
Page 101: ...DSU Menu A 3 3550 A2 GB20 40 July 1999...
Page 108: ...COMSPHERE 3550 Series Data Service Units B 6 July 1999 3550 A2 GB20 40...
Page 122: ...COMSPHERE 3550 Series Data Service Units C 14 July 1999 3550 A2 GB20 40...
Page 129: ...Pin Assignments D 7 3550 A2 GB20 40 July 1999 Figure D 5 EIA 232 D Crossover Cable 4951 035F...
Page 134: ...COMSPHERE 3550 Series Data Service Units E 4 July 1999 3550 A2 GB20 40...