ARD-1000 Manual
Contents
1. 20 while the average cost of 100 meters of coax cable could easily exceed 240 Furthermore wiring is reduced from a bulky bundle of cables to 1 easily pulled cable Let us also have a look at the characteristics of CAT 5 type cable before we go deeper on the topic Standard CAT 5 cable consists of 4 twisted pairs of AWG 24 cable which has a characteristic impedance of 100 ohm The DC resistance is 10 ohm 100 m with a capacitance of 4 6nF 100 m The figure below demonstrates the losses within CAT 5 cable 70 60 50 40 30 ATTENUATION dB FREQUENCY Hz In order to transmit the VGA over CAT 5 differential signal transmission is considered for almost all of VGA over CAT 5 extenders Because of the low bandwidth of the cables on the receiver is inevitable Appropriate compensations such as equalization and gain control and even delay adjustment among component colors are a necessary means in order to get at least acceptable quality of video and audio Performance Guide for VGA over LAN Cable Transmission Performance rating Type of LAN cable Wiring Shielding ___ CATS CAT5e CATE Unshielded UTP Ce ee kkk kkkkk Solid Stranded Please use EIA TIA 568 B termination T568B at any Termination ane Page 8 Common Video Problems Ref Intersil Ghosting lizer Triple Differentia Receiver Equa The ELOI and ELO112 aro tnple lantec channel detferential eCetvers and equotizers They contains thron hi2. Connect your VGA and RS 232 source to the Local Host 2 Connect your display and RS 232 receiving device to the Romote Display 3 Connect your CAT 5 5e 6 cable between the Local Host and Romote Display units 4 Make sure your CAT 5 5e 6 cable is tightly connected and not loose 5 Plugin 5V DC power cord to the power jack of the Romote Display 6 Plugin 5V DC power cord to the power jack of the Local Host Display Monitor o EI o Es Power Hn i i EG E 1N01V201_ LNOWDA ASNIDA dee NIVI OI NIJLOWJY ASNIDA z 0 Y ARD 1000 ARD 1000 Local Host Remote Display Touch Display Computer RS 232 VGAIN RS 232 VGA OUT M Gg US Page 6 1 Ifa blurred video is seen or even worse not displayed at all try to adjust the EQ and Gain rotary controls to improve the cable skew GAIN rotary controls are designed for gain control and EQ rotary controls are designed for equalizing the wave form of the receiving video signal It is suggested to begin with adjusting the rotary control of EQ to get the input video displayed first and then the GAIN according to the video you see on the screen 2 RGB delay control De skew offers the flexible functionality to allow skew compensation among VGA R G B signals due to long transmission or thru low quality cable By adjusting the rotary switch to choose R G or B color channel at first th
3. and GAIN control the transmission path can be adjusted to adapt the cable quality and video bandwidth Furthermore the VGA RGB delay control de skew function provides the compensation among R G B signals due to long transmission or through normal LAN cable In order to extend the control path ARD 1000 also built RS 232 half duplex long range extender along with VGA video signals Features e Supports resolution up to WUXGA 1920x1200 60HZz e Transmission distance up to 330m 1 000 feet e Supports RS 232 half duplex e Adjustable equalization on Remote Display e Adjustable gain control on Remote Display e Adjustable RGB delay De skew compensation e Wall Mount DIN RAIL Mount Page 2 Specifications amp Package Contents Model Name ARD 1000 Local Host Remote Displa 350MHz 1 2 Volts peak to peak Yes ESpprieston 1 Human body model 15kV air gap discharge amp 8kV ESD protection contact discharge 2 Core chipset 8kV 500 1x VGA 1x VGA 1x RS 232 RS 232 connector DE 9 9 pin D sub female Model 6 19 x 4 26 x 1 35 inch 6 19 x 4 5 x 1 35 inch 157 2 x 108 4 x 34 3 mm 157 2 x 114 3 x 34 3 mm Dimensions L x Wx H O 10 94 x 9 37 x 3 58 inch J 278 x238 x91 mm 2 33 Ibs 1 06 kg 4 632 Ibs 2 096 kg 20 60 C 4 140 F Relative humidit 20 90 RH no condensation 1 x Local Host 1 x Remote Display Two 100 220VAC input 5VDC 2A output power adapters 6 feet
4. ARD 1000 VGA amp RS 232 over CATS Extender with RGB Delay Control User Manual AARISTA Talk to us We listen Safety and Notice The ARD 1000 VGA amp RS 232 over CATS Extender with RGB Delay Control has been tested for conformance to safety regulations and requirements and has been certified for international use However like all electronic equipments the ARD 1000 should be used with care Please read and follow the safety instructions to protect yourself from possible injury and to minimize the risk of damage to the unit Follow all instructions and warnings marked on this unit Do not attempt to service this unit yourself except where explained in this manual Provide proper ventilation and air circulation and do not use near water Keep objects that might damage the device and assure that the placement of this unit is on a stable surface Use only the power adapter and power cords and connection cables mduded with this unit Do not use liquid or aerosol cleaners to clean this unit Always unplug the power to the device before cleaning Page 1 Introduction With only one cost effective CAT 5e cable the ARD 1000 lets you extend VGA WUXGA to cover the distance up to 330m 1 000ft The devices are composed of a transmitter and a receiver The transmitter ARD 1000 Local Host is installed near the signal source and the receiver ARD 1000 Remote Display is placed near the desired display With built in EQ
5. e color channels Example shows the screen on the bottom has excess blue Power Supply Noise Power supply noise appears as a repetitious disturbance in the video picture Use a higher quality voltage regulator to power the amplifiers and bypass all chipsets as close to the power pins as possible Page 10 Channel Timing Mismatch Ifthe R G and B signals are mismatched with respect to time they will cause a blurring of the signal Smearing Equalization issues are necessary when using CAT 5 cables to transmit VGA signals Compensation is needed to rectify the high frequency losses of the system Page 11 How to select VGA extenders over CAT 5 Since the lossless transmission 1s impossible for such a kind of converters there area couple of key factors while evaluating these modules First of all itis about the signal bandwidth Fundamentally the higher the bandwidth the better it is supposed to be Secondly the slew rate The slew rate represents the maximum rate of change of a signal at any point ina circuit Limitations in slew rate capability can give rise to non linear effects in electronic amplifiers These two factors above are especially important while designing TX unit because the receiver cannot do much on improving the distortion of the resulting video caused by low quality amplifiers on transmitters Because of the low bandwidth and low quality of CAT 5 in the most cases the received video is expected
6. en use the push buttons to increase or decrease the delay in the corresponding color channel There are totally 31 steps each step with 2ns difference for adjusting the delay between each color individually Then the graphics quality can be further assured Suggested test pattern to adjust EQ and GAIN 1280x1024 Ifa blurred video is seen try to adjust the EQ and Gain rotary knobs to improve the cable skew GAIN rotary knobs are designed for gain control and EQ rotary knobs are designed for equalizing the wave form of the receiving video signal It is suggested to begin with adjusting the rotary knob of EQ to get the input video displayed first and then the GAIN according to the video you see on the screen 2 De skew offers the flexible functionality to allow skew compensation among VGAR G B signals due to long transmission or thru low quality cable By adjusting the rotary switch to choose R G or B color channel at first then use the push buttons to increase or decrease the delay in the corresponding color channel There are totally 31 steps each step with 2ns difference for adjusting the delay between each color individually Then the graphics quality can be further assured You can download this pattern from Arista web site link http www goarista com download test_ pattern zip Page 7 VGA over CAT5 Extension CAT 5 cable provides an enormous cost benefit over coax The average cost of 100 meters of CAT 5 cable is
7. gh gpaw Oferenta receivers with hve programmable potos Tie Guipuls of thosa Dole hiocks ore then summed into ar ORDR butter sranie ts sat wiih the voltage ona angie pin Tr 4 and ELO112 also contain a 3 shetnkihe OAA fitips devices to be Connected in Ce eh ea k 7 Bayon 1 T oom inh pi ta gt 2 have a benedwadiny of I1EOMH anu E peranta hraoa n tor ihe feqnered hangi j venson Of the 11 0112 ihat decodes ari maes Of thet tee pars 3 oter to dhe tama a Features 1S0MHz Od bandwith CAT 6 compensation DOMH 1000 n T26MhHz amp 500 N 107 mA supply current PitforedMal Input range 3 2V Common mode input range lt 4 5V 45V suppiy Quiput to witan 1 OV of supphos Avallabie im 28 pin OFN package Applications msta poir Fergal yi peu alter KVM KeybSordcieo Mouse VGA over twisted pow Reoenity video Ghosting always occurs horizontally and to the observer s right following the path of the video signals To avoid reflections and maintain integrity of the input video signals over long CAT 5 cables each stage must be properly terminated Common mode Noise Common mode noise can cause a loss of synchronization because the sync signals are typically transmitted common mode The example shows loss of horizontal synchronization Page 9 Common Video Problems Ref Intersil Color Mismatch Color mismatch 1s the effect of a difference in gain or offset of th
8. l be repaired at the current price of parts and labor in effect at the time of repair Such repairs are warranted for 90 days from the day of reshipment to the BUYER If the unit is delivered by mail customers agree to insure the unit or assume the risk of loss or damage in transit Under no circumstances will a unit be accepted without a return authorization number The warranty is in lieu of all other warranties expressed or implied including without limitations any other implied warranty or fitness or merchantability for any particular purpose all of which are expressly disclaimed Proof of sale may be required in order to claim warranty Customers outside Taiwan are responsible for shipping charges to and from the Arista Corp Cables are limited to a 30 day warranty and cable must be free from any markings scratches and neatly coiled The content of this manual has been carefully checked and 1s believed to be accurate However The Arista Corp assumes no responsibility for any inaccuracies that may be contained in this manual The Arista Corp will NOT be liable for direct indirect incidental special or consequential damages resulting from any defect or omission in this manual even if advised of the possibility of such damages Also the technical information contained herein regarding the ARD 1000 features and specifications is subject to change without further notice Copyright 2009 ARISTA All rights reserved All trademarks are
9. modeling RS 232 cable male to male 6 feet modeling VGA cable male to male 6 feet modeling RS 232 cable male to female User s Guide Package Contents Page 3 Panel Descriptions ARD 1000 Local Host Front Panel 1 RS 232 IN Connect to a RS 232 signal source Computer 2 VGAIN Connect to a VGA source Computer Rear Panel 3 5V DC Power jack connect to 5V DC power supply 4 VGA OUT VGA loop out to a local VGA display 5 Local OUT Plug in a CAT 5 5e 6 cable that needs to be linked to the RJ 45 connector of the ARD 1000 Local Host unit Page 4 Panel Descriptions ARD 1000 Remote Display p lt Front Panel RS 232 OUT Connect to a RS 232 receiving device Touch Interface VGA OUT VGA output to a remote VGA display Rear Panel 5V DC power jack Connect to 5V DC power supply REMOTE IN Plug in a CAT 5 5e 6 cable that needs to be linked to the RJ 45 connector of the ARD 1000 Remote Display unit EQ Rotary control for equalization of R G B respectively GAIN Rotary control for gain control of R G B respectively Rotary control R 0 2 G 3 5 B 6 7 for de skew compensation on respective color channel for RGB delay control Push button for decrease a level of de skew compensation for RGB delay control be Push button for increase a level of de skew compensation for RGB delay control Page 5 Hardware Installation 1
10. the property of their respective owners Page 13
11. to be distorted seriously One good VGA over CAT 5 extender should at least be capable of equalizing the received differential video signal to some extent Basic functions like equalization and gain controls are designed for this purpose Depending upon the ability of equalization and gain compensation smearing ghosting and color mismatch may be eliminated or ameliorated To further improve the resulting video quality the functionality of de skewing 1s essential Again due to the quality of CAT 5 type cables the arrival time of the component colors R G B is basically different especially thru the long distance transmission Therefore the channel timing mismatch is inevitable VGA over CAT 5 extenders with delay control could be the best choice to guarantee the video quality for very long distance transmission applications Page 12 Limited Warranty The Arista Corp warrants the ARD 1000 VGA amp RS 232 over CAT5 Extender with RGB Delay Control to be free from defects in the material and workmanship for 2 year from the date of purchase from the Arista Corp or an authorized dealer Should this product fail to be in good working order within 2 year warranty period The Arista Corp at its option repair or replace the unit provided that the unit has not been subjected to accident disaster abuse or any unauthorized modifications including static discharge and power surges Unit that fails under conditions other than those covered wil
Download Pdf Manuals
Related Search