LTU/NTU SZ-DOC-W5-1.pd
Operating Manual
ersion: 1.5
Revision: 2002-09-10 100
10.3.2.5 X.21 DTE Cable
8
1
15
9
X.21/ISO 4903
15 Pin Connector
femalemale
1
9
15
8
Connector Type: 15 pin (ISO 4903), female
ITU-T Number Pin Assignment 15 pin female
(a/b)
Pin Assignment 25 pin male
(a/b)
FGND 1 1
G8 7
S 6/13 15/12
R 4/11 3/16
T 2/9 2/14
C 3/10 4/19
I 5/12 5/13
B 7/14 17/9
1)
BI (7/14)
1)
20/23
1)
Note:
Pins 17-20 and 9-23 have to be connected inside the 25-pin connector.
Alternatively, when the co-directional clock X is used, but no byte clock, this cable can be used:
ITU-T Number Pin Assignment 15 pin female
(a/b)
Pin Assignment 25 pin male
(a/b)
FGND 1 1
G8 7
S 6/13 15/12
R 4/11 3/16
T 2/9 2/14
C 3/10 4/19
I 5/12 5/13
X 7/14 24/11
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