background image

 

 

User’s Manual 

 

    

URA, URA-SKU, & URA-XT 

PC Video & Audio on Twisted-Pair Receivers 

with Cable Length Compensation  

Skew Correction and Daisy-Chain Output 

 
 

UMA1168 Rev. NC 

Order toll-free in the U.S. 800-959-6439 
FREE technical support, Call 

714-641-6607

 or fax 

714-641-6698 

Address:  

Hall Research

, 1163 Warner Ave. Tustin, CA 92780 

Web site: www.hallresearch.com   E-mail: [email protected] 

CUSTOMER 
SUPPORT 
INFORMATION 

URA 

URA-SKU 

URA-XT 

Summary of Contents for URA

Page 1: ... Correction and Daisy Chain Output UMA1168 Rev NC Order toll free in the U S 800 959 6439 FREE technical support Call 714 641 6607 or fax 714 641 6698 Address Hall Research 1163 Warner Ave Tustin CA 92780 Web site www hallresearch com E mail info hallresearch com CUSTOMER SUPPORT INFORMATION URA URA SKU URA XT ...

Page 2: ......

Page 3: ...erference to radio communication This equipment is designed to comply with the limits for a Class A computing device in accordance with the specifications in Subpart B of Part 15 of FCC rules which are intended to provide reasonable protection against such interference when the equipment is operated in a commercial environment Operation of this equipment in a residential area is likely to cause in...

Page 4: ...k Diagram for URA URA SKU 7 2 6 Connection Block Diagram for URA XT 7 3 Configuration Operation 8 3 1 Why Cable Compensation 8 3 2 Compensation Adjustment Procedure 8 3 3 Advanced Adjustment CATx AWG 9 3 4 Why Skew Adjustment 10 3 5 Skew Adjustment Procedure 11 3 6 Signal Adjustment for the Daisy Chain 12 4 Troubleshooting 13 4 1 Contacting Hall Research 13 4 2 Shipping and Packaging 13 4 3 Proble...

Page 5: ... Hall Research s Zero skew Cat5 cables are recommended with the Model URA particularly if cable lengths are 200 feet or longer The Models URA SKU and URA XT do not have any special cable requirements since they are capable of correcting the RGB color skew that is induced in typical Cat6 cables The Model URA XT allows downstream receiver units to daisy chain connections using UTP cables This elimin...

Page 6: ...tment eliminates tweaking pots Supports resolutions up to 1920x1200 at any refresh rate Compact rugged metal enclosure with mounting holes Easily expandable by daisy chaining receivers URA XT No software required for setup and use 2 Installation 2 1 Package Contents Your package should contain the URA receiver unit a Universal power supply 5 VDC 2A an IEC320 Power Cord and a User s Manual Figure 1...

Page 7: ...udio 2 channel video splitter UTP sender with local AV outputs EDID DDC compliant UVA 4 VGA Audio 4 channel video splitter UTP sender with local AV outputs EDID DDC compliant UVA 8 VGA Audio 8 channel video splitter UTP sender with local AV outputs EDID DDC compliant UVA 24 VGA Audio 24 channel video splitter UTP sender with local AV outputs EDID DDC compliant UVA 16X 16 independent VGA or compone...

Page 8: ...e URA SKU and URA XT units also provide RGB skew correction Low skew UTP cables such as Hall Research s Zero skew Cat5 cables available in both PVC and Plenum are recommended with the Model URA particularly if cable lengths are 200 feet or longer The Models URA SKU and URA XT do not have any special cable requirements since they are capable of correcting the RGB color skew that is induced in typic...

Page 9: ...GA HD YPbPr AV over Twisted Pair Receivers 7 2 5 Connection Block Diagram for URA URA SKU Figure 2 URA URA SKU Application Diagram 2 6 Connection Block Diagram for URA XT Figure 3 URA XT Application Diagram ...

Page 10: ...t Some Hall Research senders may have a built in test pattern generator If your sender unit is equipped with this feature simply activate it on the sender Otherwise you can connect a PC to the source and display a test pattern You can point your browser to http www hallresearch com skew htm for an image that allows one to adjust the compensation and to evaluate the amount of color skew in your set...

Page 11: ... adjustment mode at any time press the SEL button the unit also has a built in timeout to exit this mode Figure 4 Typical test patterns used for adjusting compensation Figure 5 Effect of adjustment on the smearing 3 3 Advanced Adjustment CATx AWG The URA automatically equalizes the brightness of the video as the smearing is reduced This automatic adjustment is based on the assumption that typical ...

Page 12: ...ll Research UVA URA video transmission on UTP uses 3 individual pairs for each color Red Green Blue Figure 6 skew mechanism explained As shown in the figure above a characteristic of Category 5 5e 6 cable is that the pairs of wires are twisted at different rates Therefore for a given length of Cat 6 cable the total length of any particular pair could be longer than other pairs in the same cable Si...

Page 13: ...the left and right in order to realign them Models URA SKU and URA XT both are capable of doing this It is noteworthy that Hall Research also offers a stand alone skew corrector unit Model SKU RGB 300 ft of CAT6 1280x1024 source actual zoomed photo of screen After skew adjustment Figure 7 Example of Skew manifested 3 5 Skew Adjustment Procedure This procedure applies to URA SKU and URA XT models o...

Page 14: ...he sender has to be adjusted first Set the high frequency compensation first and then adjust the skew Since the effects in the daisy chain are cumulative we recommend that you set the gauge of CATx cable used as well see section 3 3 above Remember if the calibration is off on a URA XT in the middle of a daisy chain and you adjust the device settings you must then check the rest of the downstream d...

Page 15: ...rmine that the URA URA SKU or URA XT is malfunctioning do not attempt to repair the unit instead contact Hall Research Technical Support at 714 641 6607 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 4 2 Shipping and Packaging If you need to transport or ship your unit Package it careful...

Page 16: ...ise between the two locations but ground potential differences more than this can show up on video 3 Shaking image or periodically blanking monitor Inherently balanced signal transmission over twisted pair offers good immunity to EMI coupled noise from other external sources However a strong electromagnetic noise field can cause instability in the signal Usual sources are high power AC lines or da...

Page 17: ...tor Type Monaural Simulated Stereo THD Noise 0 2 1 kHz 0 3 20 kHz at nominal level General Recommended cable CAT 5 5e 6 shielded or unshielded for URA XT and URA SKU Power Supply 100 VAC to 240 VAC 50 60 Hz external 5 VDC 2 A regulated 2 1mm Temperature humidity Storage 40 to 158 F 40 to 70 C 10 to 90 non condensing Operating 32 to 122 F 0 to 50 C 10 to 90 non condensing Cooling Convection vents o...

Page 18: ...Model URA URA SKU URA XT 16 ...

Page 19: ......

Page 20: ...rved Order toll free in the U S 800 959 6439 FREE technical support Call 714 641 6607 or fax 714 641 6698 Mail order Hall Research 1163 Warner Ave Tustin CA 92780 Web site www hallresearch com E mail info hallresearch com CUSTOMER SUPPORT INFORMATION ...

Reviews: