Cisco 7513 Hardware Installation And Maintenance Manual page 203

CRC
transmitted
ongoing
the
same
interface
example
32-bit
Router
Enter
Routerconfig
Router
Router
Router
To
disable
and
port address
the section
to
command
Configuring 4-Bit Cyclic
The E1-G.703/G.704
default
interface
interface
Router
Enter
Routerconfig4
Router
Routerconfig-if
Router44
To
disable
address
the related
to
Adapter Cables
Port
Serial
Replacing
The
port adapter
of the port
no
cable
is
than
either
automatically
DCE
Although you do
speed
appropriate
DCE
interface
clock
loopback
an
is
error-checking technique
CRC
Because
data
32-bit
detection
with
error less
The
default for
all serial
setting
the and
slot
specify
port
that the
follows serial
first
CRC
configure terminal
commands
configuration
interface aerial
crc32
config-if
configif
mode
32-bit
and
return
of the interface and
Cyclic Redundancy
and
descriptions instructions
Redundancy Check
interface
supports
CRC-4
To
enable on the E1-G.703/G.704
followed the crc4 command
by
slot
is
processor configured
configure terminal
commands
configuration
interface aerial
config-if
crc4
CRC-4
and
return the default
to
and
use the command
no
crc4
documentation
software
cable
connected
to
The FSIP
ports are not configured
attached
the software
port
to
DTE
DCE
or interface
uses the clock
signal
have
not
to
configure
the time
first
configure
you
clock
source for the type
and
the
later
replace
DCE
unless
rate detects
that
it
on
port without
test serial
Installing
numeric
calculated
that
uses
transmits longer data
streams
However
retransmits both the sender
interfaces for
is 16-bit
address of the interface
followed
FSIP
in interface
on
an
port
line
one End with
per
2/0
the default on
to 16-bit
setting
command
no
use the crc32
Checks
in the chapter
Preparing
the related
refer to software
CRC
mode
framed
4-bit
in
interface
specify
In the example
that follows
CRC
for
line
one End with
per
3/0
CRC
of no
error
checking
For command
complete
FSIP
each port determines the
DTB
for
either
or
the port
identifies
as
When
cable
attached
is
from
the appropriate
source
clock for the ports
source
DCE
Because
interface
as
port
mode
of cable
detects
it
DCE DTE
cable with cable
cable attached This configuration
is
cable
attached
port adapter
and
Processor
Configuring
value detect in
to
errors
at faster
rates it
provides
and
receiver
the must
CRC
To CRC
enable 32-bit
command
by the crc32
slot is
processor configured
CNTL/Z
interface
specific
specify
For
brief overview CRCs
of
For
Installation
for
complete
documentation
CRC-4
only not enabled
is
the
slot and port address
the top port on FSIP
an
CNTL/Z
and
the
slot
specify port
and
descriptions instructions
and
electrical interface
type
DCE
mode
When
by default
Cable
Unattached
Universal
mode
the port recognizes the
DTB
for
or
external internal
you do
have define the clock
to
the ports automatically
can clock
you configure rate
the FSIP
the
will ignore internal
allows
to
you perform
Maintaining
Modules
better
use
on
an
In the
for
the
slot
refer
by
of the
in
refer
mode
there
rather
and
for
use the
for
the Router 5-41