© MuxLab Inc .
Passive CCTV Power Integrator Hub Installation
Guide
Page 19
4.
Troubleshooting
The following chart describes some of the problem symptoms, the
probable causes and possible solutions. If the information below
does not solve the problem, please contact MuxLab Technical
Support at 877-689-5228 (North America) or at (+1) 514 905-
0588 (International) or via e-mail at
.
Picture
Probable Causes Possible Solutions
No video image
Power-off.
Tripped fuse
Check power supplies of CCTV
equipment. Check LED
indicators and power OFF the
affected port or the entire hub
for 3 to 5 seconds.
Wrong pin
configuration
Check pin configuration and
verify straight-through wiring.
Defective CCTV
Balun
Change CCTV baluns for
another pair.
Poor image
quality,
distortions,
interference
EMI interference
Wires reversed
on signal pair on
one side
Split pair
Check that wiring is not too
close to transformers and
lighting ballasts.
Make sure that the wires on the
signal pair are not reversed on
one side.
Check if the UTP pairs are
correct (not split)
Picture loses
color, faded or
weak
Exceeded
distance
specifications
Lower grade
UTP cable is
introducing high
losses
Check DC loop resistance and
verify if distance spec is
exceeded.
Reduce cable length or eliminate
high-loss components.
Replace cable by higher grade.
Wires reversed
on signal pair on
one side
Make sure that the wires on the
signal pair are not reversed on
one side.
