4.
Complete the connection between the two baluns, using standard Cat5 twisted
pair cable and connecting hardware, terminated on RJ45 plugs at both ends.
Ensure that there are no split pairs or taps.
5.
Power-on the audio equipment. Check the sound quality and refer to the
troubleshooting table below if the sound quality is unsatisfactory. The
following diagram shows a typical installation.
Troubleshooting
The following tables describe some of the symptoms, probable causes and possible
solutions in respect to the installation of the Quad Audio Balun. If you still cannot
diagnose the problem, please call Black Box Tech Support at 724-746-5500.
Symptom
Probable Causes
Possible Solutions
Poor audio quality 1.
EMI interference.
Check that wiring is not too close to
transformers and ballasts.
2.
Split pair
Check if the UTP pairs are split and
correct. Each signal pair must be
twisted.
No audio
1.
Power-off.
Check power supply.
2.
Open contact
Check wiring to ensure continuity
3.
Defective Audio Balun Change Audio Baluns for another
pair.
Audio weak
1.
Exceeded distance
specifications
Check DC loop resistance and verify
if distance spec is exceeded. Reduce
cable length or eliminate high -loss
components.
2.
Lower grade UTP cable
is introducing high
signal losses.
Use signal repeater for extended
distance.
Replace cable by higher grade.
