Datasheet

C-22 Cisco AS5200 Universal Access Server Hardware Installation Guide
Synchronous Serial Cable Assemblies and Pinouts
X.21
Figure C-14 shows the X.21 cable assembly. Table C-15 lists the DTE pinouts. Table C-16
lists the DCE pinouts. Arrows indicate signal direction: a right arrow (—>) indicates DTE
to DCE, and a left arrow (<—) indicates DCE to DTE.
Figure C-14 X.21 Cable Assembly
Table C-15 X.21 DTE Cable Pinouts (DB-60 to DB-15)
60 Pin Signal Description Direction 15 Pin Signal
J1-48
J1-47
GND
MODE_2
Shorting group – – –
J1-51
J1-52
GND
MODE_DCE
Shorting group – – –
J1-46 Shield_GND Single – J2-1 Shield GND
J1-11
J1-12
TxD/RxD+
TxD/RxD–
Twisted pair no. 3 —>
—>
J2-2
J2-9
Transmit+
Transmit–
J1-9
J1-10
RTS/CTS+
RTS/CTS–
Twisted pair no. 2 —>
—>
J2-3
J2-10
Control+
Control–
H1974
60-pin connector (J1)
34-pin connector (J2)
Connectors are not to scale.
J2-8
J2-15
J2-9
J2-1
1
-46
1
-45
1
-16
1
-15
J
1-1
1
-30
1
-31
1
-60