Cisco 3000 Series

Serial Cable Pinouts
Table A-4 RS-232 DCE Serial
Cable Pinouts and
Signal
Descriptions
72-0136-01
Connections1
50 Pin
25 Pin
SinaI Type
J1-3 J1-36 MUX
J1-47 J2-24 SCTE Twisted Pair
J1-17 Jl-38 DCE
J1-40 J2-5 CTS Twisted Pair
J1-39
J2-4 RTS
J1-14
J2-8 DCD Twisted Pair
J1-30
J2-6 DSR
J1-46
J2-2 TXD Twisted Pair
J1-44 J2-7
GND
J1.-11 J2-3
RXD Twisted Pair
J1-42 J22O
DTR
J1-9 J2-18
LTST Twisted Pair
J1-23 J2-17
RXC
J1-16 J2-l5
TXC Twisted Pair
J1-15 J2-l Chassis
Ground
Any pin
not referenced on connector is not connected
A-4
Cisco 3000 Hardware Installation and Maintenance