Cisco 3000 Series - Page 77

Serial Cable Pinoüts
X.21 Cabe
Assemby
Figure
A-5 shows the X.21 cable
assembly
and Table
A-9
and Table A-b list the cable
pinouts
and
signal descriptions
50-pin
connector
Ji
J1-33
Ji
-17
J1-1
J1-18
J1-34
15-pin
connector
J2
Figure
A-5 X.21 Cable
Assembly
Table A-9 X21 DTE Serial Cable Pinouts and
Signal
Descriptions
72-0683-02 Connections1
From
Signal Type
To
Signal
Jl-5 MUXSEL Jl-38 GND
Jl-36 449GND J2-8
X21GND
Jl-41 449 DTR
Jumper
Jl-6 449 CTS
Jl-25 Jl-22
Jl-41 449 DTR
Jumper
Jl-8 449 DSR
Jl-25
Jl-24
Jl-43
449
SCTE
Jumper
Jl-37 449 SCR
Jl-27 Jl-21
Jl-l
449
TXD
Twisted
Pair J2-2
X.21
TXD
Jl-34 J2-9
J1-4 449 RTS Twisted Pair J2-3 X.2l CTL
J1-20 J2-l0
Jl-35
449
RXD
Twisted
Pair
J2-4 X.21 RXD
Jl-19 J2-ll
Ji-lO 449 RLSD Twisted Pair J2-5 X.21 IND
Jl-26 J2-l2
Jl-2 449 SCT Twisted Pair J2-6 X.21 CLK
Jl-18 J2-l3
Any pin
not referenced on connector is not connected
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