User Manual

193
MN024-08
TILx-
-HL
start
Is there any point
where the fibre
experiences a small
radius of curvature?
Rearrange the optical path to avoid sharp
bends. If necessary replace the optical
cable with a lon
g
er one.
Is red LED
upon TMRX/TSRX
still ON?
Are SC-APC
connectors properly
installed at both fibre ends?
Fix better SC-
APC connectors
Yes
No
No
Yes
No
Yes
No
Yes
Disconnect the
optical SC-APC
connector from
TMRX/TSRX
Clean the optical SC-APC ports
corresponding to both the fiber ends
Disconnect the
fiber optic cable
and clean it at
b
oth ends.
Reconnect the fibre
to relevant ports
Measure the output power
at corresponding fibre end.
Connect the adap
ter again
Go to the module where the other
end of the fiber is connected,
disconnect the corresponding SC-
APC connector , and measure the
corresponding input power
. Then
connect the adapter again.
Calculate fibre attenuation
A[dB]=input power
- output power
Is A > 10dB?
Fibre optic cable has some
p
roblems. Re
p
lace it.
Quick troubleshooting procedure
has not identified any problem
on the fiber optics cable
end
No
Yes
No
Yes
Is red LED
upon TMRX/TSRX
ON?
Is red LED
upon TMRX/TSRX
still ON?
Fig. 5.34(b): Flow-chart describing the TMRX/TSRX fiberoptic troubleshooting.