OMX-4001, 4002,4003,4004 VGA / XGA Distribution
Contents
1. 5 2lbs Approx 6lbs Approx Approx Pe Power Source 115VAC 50 60 12VDC 75mA 115VAC 50 60 115VAC 50 60 Hz 4 3VA Hz 9 2VA Hz 15VA OMX 4001 4002 4003 40042. VGA XGA Devices Video sources and output devices such as monitors projectors or recorders may be connected to the amplifiers through the HD15F type connectors located on the back of the unit Unused inputs are terminated to 75ohm and active inputs should be terminated by the connecting source The signals supported by the various Getting to Know Your OMX 4002 Amplifier models are Analog Red Green Blue signals The OCEAN MATRIX OMX 4002 is a full bandwidth 1 6 VGA XGA distribution amplifier designed for computer and workstation applications The OMX 4002 splits a VGA Super VGA XGA graphics card output to 6 monitors with no discernible signal degradation Input and output are DC coupled and conform to the highest standards Signal bandwidth of 400MHz allows the OMX 4002 to be used with the highest quality graphics workstations USING THE AMPLIFIERS Powering on the Amplifier NOTES Getting to Know Your OMX 4003 Amplifier 1 The amplifier should only be powered on after all connections are completed and all source devices have been powered on Do not attempt to connect or The OCEAN MATRIX OMX 4003 is a full bandwidth 1 12 VGA XGA disconnect any video audio or control signals to the amplifier while it is distribution amplifier designed for computer and workstation applications The powered on OMX 4003 splits a VGA Super VGA XGA graphics card output to 12 monitors 2 The socket outlet should be near the equipment and should be easily wit
3. consider is the sync As those signals are logic signals which are not treated as analog signals the receiver does not terminate the line and therefore the line is not matched A host of problems might occur when signals are sent over long unterminated unmatched cables The result might be image breakdown or distortion due to improper sync information The amplifier that drives the analog section of the graphics data should also be able to buffer recover and send the sync information in such a way that it will be received properly at the receiver end Factors Affecting Quality of Results There are many factors affecting the quality of results when signals are transmitted from a source to an acceptor gt Connection cables Low quality cables are susceptible to interference they degrade signal quality due to poor matching and cause elevated noise levels They should therefore be of the best quality gt Sockets and connectors of the sources and acceptors So often ignored they should be of highest quality since Zero Ohm connection resistance is the objective Sockets and connectors also must match the required impedance 75ohm in video Cheap low quality connectors tend to rust thus causing breaks in the signal path gt Amplifying circuitry Must have quality performance when the desired end result is high linearity low distortion and low noise operation gt Distance between sources and acceptors Plays a major role in th
4. EAN MATRIX amplifiers are designed to be simple to operate Typical applications of the machines are computer graphics distribution in classes point of sale and multimedia studios and displaying computer graphics before large audiences using the data input of a wide screen video projector Handling Graphics signals A computer generated graphics signal is usually comprised of 5 signals Red Green Blue which are analog level signals and two TTL logic level signals Horizontal Sync and Vertical Sync Digital graphics cards and monitors use a different signal format and will not be discussed here as they are not relevant to this DA Computer graphics resolution is measured in pixels and signal bandwidth The more pixels picture elements on the screen the more detailed is the image VGA S VGA XGA S XGA and U XGA are terms describing the graphics resolution and the color depth Color depth represents the maximum number of simultaneously displayed colors on the screen and is measured in bits 24 and 32 36 bits of color depth represent millions to billions of color shades available on the screen at any given moment It should be born in mind though that the human eye can resolve only a few thousands colors The more the image is detailed higher resolution and the higher the color depth the more real the image will look Standard VGA highest resolution was 640x480 pixels with 4 bits of color 16 colors Standard VGA was able to us
5. OMX 4001 4002 4003 4004 VGA XGA Distribution Amplifiers INTRODUCTION Congratulations on your purchase of this OCEAN MATRIX amplifier This manual includes configuration operation and information for the following products from the OCEAN MATRIX line of distribution amplifiers These amplifiers are similar in operation and features OMX 4001 1 3 VGA Distribution Amplifier OMX 4004 1 4 VGA Distribution Amplifier OMX 4002 1 6 VGA XGA Distribution Amplifier OMX 4003 1 12 VGA XGA Distribution Amplifier YYYY A Word on VGA XGA Distribution Amplifiers VGA XGA distribution amplifiers distribute one or more signals to several receivers They vary in the number of inputs looping capability programming capability number of outputs operating format bandwidth and input output coupling VGA XGA distribution amplifiers are used to distribute one source to several acceptors wide screen projectors format converters etc for simultaneous recording or monitoring of one source with no discernible signal degradation The machines excel in very large bandwidth some approaching 400 MHz and very good linearity making them usable for even the highest graphics standards A good quality distribution amplifier amplifies the incoming signal may pre compensate the signal for potential losses resulting from the use of long cables noisy source etc and generates several identical buffered and amplified outputs The front panels of these OC
6. e final result For long distances between sources and acceptors special measures should be taken in order to avoid cable losses These include using higher quality cables or adding line amplifiers gt Interference from neighboring electrical appliances These can have an adverse effect on signal quality Balanced audio lines are less prone to interference but unbalanced audio should be installed far from any mains power cables electric motors transmitters etc even when the cables are shielded How Do I Get Started The fastest way to get started is to take your time and do everything right the first time Taking 15 minutes to read the manual may save you a few hours later You don t even have to read the whole manual If a section doesn t apply to you you don t have to spend your time reading it Unpacking and Contents The items contained in your OCEAN MATRIX distribution amplifier package are listed below Please save the original box and packaging materials for possible future transportation and shipment of the amplifier gt Amplifier AC power cable OMX 4001 OMX 4002 OMX 4003 only 12 VDC wall transformer OMX 4004 User Manual gt gt gt gt Arubber feet VGA XGA Distribution Amplifiers This section describes all the controls and connections of your machine Understanding the controls and connections helps you realize the full power of your machine Getting to Know Your OMX 4001 Amplifier T
7. e more colors 256 but at a lower resolution around 320x200 pixels which was very crude Common resolutions used today for computer graphics vary between 1024x768 and 2000x1600 pixels with high color 16 bits of color representing 64 000 different colors up to true color 24 bits or more representing from 16 7 million colors up to several billion Displaying such a detailed and colorful image on the screen needs enormous graphics memory per frame as well as very high speeds for writing so many pixels on the screen in real time Amplifiers that carry such signals must be able to handle those speeds and signal bandwidths Standard VGA at 640x480 resolution needed amplifiers with 20 30MHz bandwidth At 1600x1200 or even at 1280x1024 S XGA such amplifiers will fail completely In order to faithfully amplify and transmit modern high resolution graphics amplifiers with bandwidths of 300 MHz and more are needed Those amplifiers besides the enormous bandwidth they handle need to be linear to have very low distortion and be stable Stability of an amplifier is its ability to avoid bursting into uncontrolled oscillation which is in adverse relationship to the speed it can handle The tendency to oscillate is further enhanced by the load impedance The load impedance of a system is usually not just a resistor A cable connected to an amplifier leading to the receiver or monitor may present a capacitive and or inductive load to
8. h no discernible signal degradation Input and output are DC coupled and accessible To fully disconnect equipment remove power cord from socket conform to the highest standards Signal bandwidth of 300MHz allows the OMX 4003 to be used with the highest quality graphics workstations gt Press the toggle switch on the far left front panel to the up position The toggle switch glows gt Operate the acceptors Technical Specifications OMX 4001 OMX 4004 OMX 4002 OMX 4003 Function 1 3DA 1 4 DA 1 6 DA 1 12 DA Analog R G B Analog R G B Analog R G B Analog R G B 0 7 Vpp 75 0 7 Vpp 75 0 7 Vpp 75 ohms 0 7 Vpp 75 ohms ohms H V ohms H V H V syncs TTL H V syncs TTL syncs TTL syncs TTL level level on HD 15F level on HD 15F level on HD on HD 15F connector connector 15F connector connector 3VGAR G B 4VGAR G B 6VGAR G B 12 VGA R G B 0 7 Vpp 75 0 7 Vpp 75 0 7 Vpp 75 ohms 0 7 Vpp 75 ohms ohms H V ohms H V H V syncs TTL H V syncs TTL syncs TTL syncs TTL level level on HD 15F level on HD 15F level on HD on HD 15F connector connector 15F connector connector gt 350MHz gt 350MHz 3dB 400MHz 3dB gt 300MHz 3dB 3dB mean Jore Jose osx foon KFactor lt 005 lt 008 006 foose Dimensions 24 5x18x4 5 24 5x18x4 5 48 3x17 8x1U 48 3x17 8x1U W D H cm cm cm cm 9 6 x 7 x 1 8 9 6 x 7 x 1 8 19 x7 x1U 19 x 7 x 1U 1 4kg 1 1kg 2 4kg 2 7kg 3 1lbs 2 4lbs
9. he OCEAN MATRIX OMX 4001 is a full bandwidth 1 3 VGA XGA distribution amplifier designed for computer and workstation applications The OMX 4001 splits a VGA Super VGA XGA graphics card output to 3 monitors with no discernible signal degradation Input and output are DC coupled and conform to the highest standards Signal bandwidth of 350MHz allows the OMX 4001 to be used with the highest quality graphics workstations Getting to Know Your OMX 4004 Amplifier The OCEAN MATRIX OMX 4004 is a full bandwidth 1 4 VGA XGA distribution amplifier designed for computer and workstation applications The OMX 4004 splits a VGA Super VGA XGA graphics card output to 4 monitors The OMX 4004 is DC fed making it suitable for fieldwork Both the input and the output are AC coupled conforming to the highest standards Signal bandwidth of 350MHz allows the OMX 4004 to be used with the highest quality graphics workstations INSTALLATION Rack Mounting The OMX 4002 and OMX 4003 amplifiers may be rackmounted in a standard 19 1U EIA rack and have rack ears at the ends of the front panel To mount them simply place the unit s ears against the rack rails of your rack and insert standard screws through each of the four corner holes The OMX 4001 and OMX 4004 models can be table mounted using the rubber feet or rack mounted using a special adapter These devices do not require any specific spacing for ventilation above or below the unit Connecting TO
10. the amplifier This is the main cause of instability The poor performance of a load or cable may severely degrade the performance of the amplifier it s bandwidth linearity and stability and in general its ability to faithfully reproduce the signal Cables affect image resolution Longer cables can cause high frequency deterioration and hence image smear and loss of resolution In computer graphics especially this adverse effect is very much accentuated Amplifiers should thus also cope with an additional task compensating for cable losses up to the maximum useful operation distance High resolution graphics systems must use very high quality cables for image transmission The cables should be shielded to eliminate externally induced interference though the shield might increase the capacitance of the cable and therefore cause deterioration in the image s resolution and clarity Standard cables can only be a few meters long For longer distances compound cable is separated into five individual coax cables which are bulky and cumbersome for use Even so the distance is limited to several tens of meters Cables may create other problems if they fail to accurately match the system s required impedance The result of this especially at high frequencies is shadows or ghosts on the image resulting from standing waves and electronic reflections running back and forth between transmitter and receiver Another aspect to
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