Muxlab MonoPro™ XLR - Manual (Page 2)

4. Loosen the cable strain relief nut and feed the Cat5 cable through the opening
into the adapter.
5. Strip back about 1” of the cable jacket and expose about ¼” of copper wire at
the end of the appropriate wires.
6. Connect the UTP wires to the screw terminal blocks, respecting the wiring
polarity. If STP is used, connect the drain wire to the Ground terminal.
7. Tighten the cable strain relief nut at the end of the adapter.
8. Plug the MonoPro™ XLR into the XLR3 connector of the audio source
equipment.
9. Repeat steps 4 to 6 for the MonoPro XLR at the receiver side.
10. Plug the second MonoPro™ XLR into the XLR3 connector of the audio
receiver equipment at the remote side.
11. Complete the connection between the two adapters, using standard UTP cable,
connector blocks and modular wall outlets as required. The following diagram
shows a typical connection.
12. Power-on the audio equipment and check the audio quality. The audio should
be clear within the maximum specified distances. The following diagram
shows a typical application.
Troubleshooting
The following table describes some of the symptoms, probable causes and possible
solutions in regard to the installation of the MonoPro XLR Balun. If you still
cannot diagnose the problem, please call MuxLab Customer Technical Support at
877-689-5228 (toll-free in North America) or +1 514-905-0588 (International).
Symptom Probable Causes Possible Solutions
Poor audio quality 1. EMI interference. Check that wiring is not too close to
transformers and ballasts. Use STP if
necessary.
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 balun Change MonoPro™ XLR for another
pair.
Audio weak 1. Distance exceeded 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.
Missing digital
audio channels 1. Cabling problem
between the
decoder/amp and the
audio speakers.
Check audio speaker cabling.
Intermittent static
noise on one or
more digital audio
channels. 1. Distance exceeded or
unusual cable
attenuation
Check cable distance and cable grade.