A-17
Cable Specifications
Synchronous Serial Cable Assemblies and Pinouts
C
abl
e S
p
e
c
if
icat
ion
s
X.21
Figure A-7 shows the X.21 cable assembly. Table A-11 lists the DTE pinouts.
Table A-12 lists the DCE pinouts.
Arrows indicate signal direction:
—> indicates DTE to DCE, and <— indicates DCE to DTE.
Figure A-7. X.21 Cable Assembly
H1974
60-pin connector (J1)
15-pin connector (J2)
Connectors are not to scale
J2-8
J2-15
J2-9
J2-1
J1-46
J1-45
J1-16
J1-15
J1-1
J1-30
J1-31
J1-60
Summary of Contents for J3138A
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