TAP-141
234-151-077AC
5
of
3
Page
1999
June
7,
Issue
Measure resistance
between these 2 points
on BNC connector of
coaxial cable
Cable
Coaxial
of
Resistance
DC
Measure
to
How
1.
Figure
correct?
6
Step
in
measured
resistance
the
Was
7.
If NO
12.
Step
to
go
,
If YES
transceiver
LAN
the
or
suspect,
be
may
CDSC
the
within
cabling
coaxial
then
,
be
may
048
EQL
at
(MIP-0)
pack
circuit
TN4001
SCU
of
backplane
the
into
plugged
board
8.
Step
to
Continue
first.
investigated
be
will
cabling
coax
CDSC
The
suspect.
center
the
between
resistance
DC
the
Measure
CDSC.
the
in
cabling
coaxial
the
Check
8.
the
from
coming
cable
coaxial
the
where
T-connector
the
on
shield
outer
the
and
conductor
70
and
40
between
be
should
resistance
The
1).
(Figure
5
Step
in
removed
was
SCU
Ohms.
correct?
8
Step
in
measured
resistance
the
Was
9.
If NO
inspection:
visual
a
make
,
•
CDSUs
the
all
connecting
cables
coaxial
LAN
daisy-chained
the
inspect
Visually
and
T-connectors
the
to
attached
properly
are
cables
these
that
Ensure
together.
the
in
pack
circuit
LAN
the
to
attached
properly
are
T-connectors
the
that
also
(The
ground.
frame
contact
not
must
T-connectors
and
connectors
LAN
All
CDSUs.
ground.)
frame
from
isolated
electrically
is
LAN
•
is
HUB
Smart
the
to
CDSU
last
the
connecting
cable
coaxial
the
that
sure
Make
HUB
Smart
the
by
termination
no
be
to
appears
problem
the
If
place.
in
properly
to
HUB
Smart
the
on
position
the
that
sure
make
HUB),
the
to
cable
in
circuit
(open
switch
(slide
termination
internal
for
selected
is
attached
is
cable
coaxial
the
which
coax
the
move
temporarily
then
set,
properly
is
switch
slide
the
If
connector).
to
next
measurement.
resistance
the
repeat
and
HUB
the
on
position
vacant
a
to
cable
•
13.
Step
to
Go
If YES
circuit
LAN
the
CDSU-0,
or
LAN
the
indicate
NOT
does
list
TLP
the
of
top
the
and
,
the
Replace
defective.
be
may
itself
CDSU
suspect
the
or
CDSU
suspect
the
in
pack
13.
Step
to
go
Then
(DLP-538).
CDSU
If YES
to
addition
in
then
CDSU-0,
or
cable
LAN
the
indicate
DOES
list
TLP
of
top
the
and
,
board
paddle
transceiver
LAN
the
suspect,
being
CDSU
the
in
pack
circuit
LAN
the
be
also
may
048
EQL
at
(MIP-0)
TN4001
pack
circuit
SCU
of
backplane
the
on
plugged
13.
Step
to
go
Then
board.
paddle
the
Replace
suspect.
Proprietary
—
Technologies
Lucent
instructions
Company
to
pursuant
Use
Содержание 4ESS SCS
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