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The UH-1C is designed for operation with standard Cat6 cables (TIA/EIA 568B wiring). You
can use Quality Cat5e cables also if the distance between sender and receiver is 70 ft or
less. Shielded Cat6 can also be used; in fact, shielded Cat6 offers the best performance
and provides immunity to external noise if the installation is in an electrically noisy
environment. Avoid using Zero-skew or low skew cables. The low skew cables work well for
analog video extension over twisted pair, but since the UH-1C is a pure digital system, the
cross-talk of the low skew cables will actually shorten the maximum achievable cable
.
length
3. Troubleshooting
There are no field serviceable parts or circuits in the device. If you think that the device is
malfunctioning, please first try the following steps:
Check the video connections
Unplug the power supplies and re-attach them
The POWER LED at the Receiver is ONLY LIT during an active video connection.
o It DOES NOT indicate the unit is powered
Connect the display directly to the source and make sure you can get a picture without the
extender. If so then using the menus of the video source try to set the output resolution to
a low one (such as 480p) to start with. Insert the extender and verify that you get an
image, if so; then set the resolution to the next higher value (such as 720p). Continue this
process until you get the highest possible resolution without loss of image or audio.
The quality of the cable and the connections will determine the maximum length and
resolution achievable. Certain types of cable may be able to show the video, but the audio
will not be heard.
3.1 Contacting Hall Research
If you determine that your extender is malfunctioning, do not attempt to repair the unit. The unit
contains no user serviceable equipment. Opening the unit will void the warranty. Contact the Hall
Research Technical Support Department at 714-641-6607 to obtain a RMA (Return Authorization)
number.
Before you do, make a record of the history of the problem. We will be able to provide more
efficient and accurate assistance if you have a complete description.
3.2 Shipping and Packaging
If you need to transport or ship your extender:
• Package it carefully. We recommend that you use the original container.
• Before you ship the units back to Hall Research for repair or return, contact us to get a
Return Authorization (RMA) number.
Note about Twisted-Pair Cables
Model UH-1C
3
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