Cisco 3000 Series User Manual

Network Connection Considerations
Serial Connections
Back
Front
The serial interface
ports
are
located
on
the
rear
of the
router
See Figure
2-4
Figure
2-5
Figure
2-6
and
Figure
2-7
The serial
ports
are
50-pin D-type
subconnectors The
router
is
available
as
DTE
only except
models 3104 and
3204
On
models 3104 and
3204
the serial
ports
can
be
configured
as
DTE
or
DCE
depending
on
the
special
serial cable
being
used DTE
serial
ports
require
that
clocking
be
provided by
CSU/DSU or modem
If the
systems
serial
port
is labeled
with
V2
then for
optimum performance
use
the
version of the
cable with the
part
number
ending
in
-02 for
example
72-0740-02
DCE
or 72-0671-02
DTE
You must use
special
serial cable
to connect the router to modem or
CSU/DSU
as shown in
Figure
2-12 This cable is
available from us and is
usually
ordered with the
system
See
Appendix
for cable
specifications
For
ordering information
contact
your
sales
representative
Figure
2-12 Serial Cable Connections
Token
Ring
lobe cable
not included
Standard
IEEE.802.5
connector
Media
attachment
unit
MAU
9-pin
connector
Router
top view
Figure
2-11 Token
Ring
Cable
Connections
Serial
port
50-pin
connector
Router
RS-232 RS-449V.35
X.21 or EIA-530
connector
Modem
or
CSU/DSU
Preparing
for Installation 2-13

Cisco 3000 Series Specifications

General

Brand	Cisco
Model	3000 Series
Category	Switch
Language	English