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4-Port DVI Switch with Audio & Serial Control

Table of Contents

1.0 General ................................................................................................ 3

2.0 Features................................................................................................ 4

3.0 Installation ........................................................................................... 5

. Required Cables..................................................................................... 5

. Inputs & Outputs ................................................................................... 5

. Connecting the DVS-4A........................................................................ 5

. Connection Diagram.............................................................................. 6

4.0 Operation ............................................................................................. 7

. Manually Switched Output .................................................................... 7

. Modes of Operation ............................................................................... 7

. Priority Selection in Auto Mode............................................................ 8

. Long Cable Equalization ....................................................................... 8

. Scan Mode ............................................................................................. 8

. RS-232 Control Port Usage ................................................................... 9

. To configure HyperTerminal................................................................. 9

. Serial Port Control Codes .................................................................... 10

5.0 Troubleshooting................................................................................. 16

6.0 Specifications..................................................................................... 17

Содержание DVS-4A

Страница 1: ...ch hn no ol lo og gi ie es s I In nc c Copyright 2007 Hall Research Technologies Inc All rights 1163 Warner Ave Tustin CA 92780 Ph 714 641 6607 Fax 6698 Model DVS 4A 4 Port DVI Switch with Audio Serial Control Long Cable Equalization UMA1129 Rev B ...

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Страница 3: ...nterference to radio communications This equipment has been tested and found to comply with the limits for a Class A computing device pursuant to Part 15 of the FCC rules These limits are designed to provide reasonable protection against harmful interference when operated in a commercial environment Operation of this equipment in a residential area may cause interference in which case the user at ...

Страница 4: ...5 Inputs Outputs 5 Connecting the DVS 4A 5 Connection Diagram 6 4 0 Operation 7 Manually Switched Output 7 Modes of Operation 7 Priority Selection in Auto Mode 8 Long Cable Equalization 8 Scan Mode 8 RS 232 Control Port Usage 9 To configure HyperTerminal 9 Serial Port Control Codes 10 5 0 Troubleshooting 16 6 0 Specifications 17 ...

Страница 5: ...I D video signals at resolutions up to 1920x1200 and HDTV up to 1080p The DVS 4A unit provides all the A V and control connections on the rear panel the front panel has a push button switch with corresponding LED indicator for the selection of video source This unit can be controlled by either manually using the front panel switch automatically based on video detection or remotely through an RS232...

Страница 6: ...led by push button switches remotely by a RS232 communication port 9 Provides an Auto mode to automatically select input source 9 Auto Mode priority can be set for any input or no priority 9 Scan Mode shows each output for a programmable time period 9 Switched output can be blanked and un blanked 9 Video Cable Equalization available for long cabling 9 Stores the last selection and mode in EEPROM 9...

Страница 7: ...o output labeled Video Output Connecting the DVS 4A Connect your video and audio sources such as computer or notebook PC to Video 1 Video 2 Video 3 and or Video 4 connector s Connect the display device such as a monitor or a video projector to the switched video and audio output connectors Connect the included power supply to the DVS 4A Select the desired mode of operation Auto Scan or Manual usin...

Страница 8: ...4 Port DVI Switch with Audio Serial Control 6 Connection Diagram MODEL DVS 4A REAR PANEL Universal Mounting Bracket ...

Страница 9: ...4A FRONT PANEL Modes of Operation The unit can operate in either Auto or Manual mode Pressing the SEL 1 and SEL 2 buttons simultaneously for 3 seconds will select AUTO mode Pressing any SEL button selects MANUAL mode When in Auto mode the SEL 1 and SEL 2 LEDs will flash to indicate the mode is active In Auto mode the DVS 4A will automatically select the input with active video and audio The presen...

Страница 10: ...put of the DVS 4A will change to select Video 1 video immediately Video detection on either Video 2 or Video 4 would take precedence over the Video 3 signal Long Cable Equalization The use of long DVI cables can cause the Video image to degrade to unacceptable levels Enabling the BOOST signal can sometimes compensate for the cable length and produce an acceptable picture The BOOST setting can only...

Страница 11: ...ay need a USB to RS 232 Serial converter These are available from Hall Research Technologies Model USB RS232 1 The DVS 4A will output a menu to the serial port on power up This menu can also be displayed when the appropriate command is sent to the DVS 4A via the serial port To view the menu an ASCII serial terminal or terminal emulator software is needed An example is Microsoft Windows HyperTermin...

Страница 12: ...ternal device to the Serial Port on the DVS 4A ASCII 1 Hex 31 or Decimal 49 Selects Video input 1 immediately and unconditionally If the unit was in AUTO mode then MANUAL mode is selected The device will respond with Video 1 selected ASCII 2 Hex 32 or Decimal 50 Selects Video input 2 immediately and unconditionally If the unit was in AUTO mode then MANUAL mode is selected The device will respond w...

Страница 13: ... unit was in MANUAL mode the user must select the desired detection method by entering a number from 1 to 3 within 20 seconds Values outside this range or delaying entry longer than 20 seconds will result in an error message Invalid entry Current detection stays the same The device will respond with Auto mode selected Detection Method 1 Vertical sync 2 5V Power 3 Vertical sync 5V power Current det...

Страница 14: ... priority values are set to equal values the first input with an active Video signal will be displayed ASCII B or b Hex 42 62 or Decimal 66 98 Blanks the output The device will respond with Blank mode selected When the output is blanked only the color intensities of the output are reduced to zero The unit still operates in a normal fashion and sync signals are still routed to the output The audio ...

Страница 15: ...spond with Report Input Video 1 or 2 3 4 Output No LCD or LCD Present Mode Manual or Auto Video 1 priority is 1 or 2 3 4 Video 2 priority is 2 or 2 3 4 Video 3 priority is 3 or 2 3 4 Video 4 priority is 4 or 2 3 4 Scan time sec 5 or 1 to 60 Scan video Active only or All Blank Off or On Boost Disabled or Enabled Detection method Vertical sync 5V power or either one only This report displays the cur...

Страница 16: ...selected Please enter time between switching 1 60 sec After the entry or timeout the device will respond with Scan non active video y n Again the user must respond within 20 seconds Entries other than Y y N or n or delaying entry longer than 20 seconds will result in an error message corresponding to the last setting of the SCAN mode Invalid input Scan only active video Invalid input Scan all vide...

Страница 17: ...put D Disable boost A Auto mode R Report S Scan mode F Factory defaults P Priority M Menu ASCII F or f Hex 46 66 or Decimal 70 102 Causes the system to be reset to its DEFAULT factory settings The device will respond with Factory defaults restored ASCII v Hex 76 or Decimal 118 Causes the system to display the firmware version number The device will respond with Firmware Version X Y where X Y is th...

Страница 18: ...pair make sure to get a Return Material Authorization RMA number first Cable Length Limitations The switcher cannot be used as an extender Therefore it is best to plug the output of the switch directly to the display device and use input cables that are 5 meters 16 ft maximum In other words try to keep the total length of cables from the video source to the box and from the box to the monitor shou...

Страница 19: ...e 1 66 High x 8 42 Wide x 2 61 Deep Weight 2 0 pounds DVI Connector pin out N U Not Used Pin Signal name Pin Signal name 1 TMDS Data2 13 TMDS Data3 N U 2 TMDS Data2 14 5V Power 3 TMDS Data2 4 Shield 15 Ground for 5V Power 4 TMDS Data4 N U 16 Hot Plug Detect 5 TMDS Data4 N U 17 TMDS Data0 6 DDC Clock 18 TMDS Data0 7 DDC Data 19 TMDS Data0 5 Shield 8 Analog vertical sync 20 TMDS Data5 N U 9 TMDS Dat...

Страница 20: ...4 Port DVI Switch with Audio Serial Control 18 ...

Страница 21: ...4 Port DVI Switch with Audio Serial Control 19 ...

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