Cisco WS-X3011 Configuration Note page 41

60 Pin
J1-33
Shield
J1-28
J1-27
J1-18
J1-17
J1-26
J1-25
J1-22
J1-21
J1-20
J1-19
X.21
Figure 17 shows the X.21 cable assembly. Table 17 lists the DTE pinouts. Table 18 lists the DCE
pinouts. Arrows indicate signal direction: —> indicates DTE to DCE, and <— indicates DCE to
DTE.
Figure 17
J1-46
J1-45
J1-16
J1-15
J1-1
J1-30
J1-31
J1-60
Table 17
60 Pin
J1-48
J1-47
J1-51
J1-52
J1-46
J1-11
J1-12
Signal Description
DCD/LL Twisted pair no. 6
–
RxD/TxD+ Twisted pair no. 5
RxD/TxD–
TxD/RxD+ Twisted pair no. 1
TxD/RxD–
RxC/TxCE+ Twisted pair no. 4
RxC/TxCE–
NIL/RxC+ Twisted pair no. 3
NIL/RxC–
TxCE/TxC+ Twisted pair no. 2
TxCE/TxC–
X.21 Cable Assembly
60-pin connector (J1)
Connectors are not to scale.
X.21 Cable Pinouts (DTE)
Signal Description
GND Shorting group
MODE_2
GND Shorting group
MODE_DCE
Shield_GND Single
TxD/RxD+ Twisted pair no. 3
TxD/RxD–
Synchronous Serial Cable Assemblies and Pinouts
Direction 34 Pin Signal
<— J2-K LT
– Shield –
<— J2-P SD+
<— J2-S SD–
—> J2-R RD+
—> J2-T RD–
<— J2-U SCTE+
<— J2-W SCTE–
—> J2-V SCR+
—> J2-X SCR–
—> J2-Y SCT+
—> J2-AA SCT–
34-pin connector (J2)
Direction 15 Pin Signal
– – –
– – –
– J2-1 Shield GND
—> J2-2 Transmit+
—> J2-9 Transmit–
Router Card (WS-X3011) Configuration Note
J2-8
J2-15
J2-9
J2-1
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