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© Copyright 2007. Hall Research Technologies, Inc. All rights 

1163 Warner Ave   Tustin, CA 92780, Ph:  (714)641-6607, Fax -6698 

 
 
 
 

Model DVS-2A 

2-Port DVI Switch with Audio, Serial Control & 

Long Cable Equalization 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

UMA1127

Rev 

B

 

Содержание DVS-2A

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 2A 2 Port DVI Switch with Audio Serial Control Long Cable Equalization UMA1127 Rev B ...

Страница 2: ......

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: ...ed Cables 5 Inputs Outputs 5 Connecting the DVS 2A 5 Connection Diagram 6 4 0 Operation 7 Switched Output 7 Modes of Operation 7 Priority Selection in Auto Mode 8 Long Cable Equalization 8 RS 232 Control Port Usage 8 To configure HyperTerminal 9 Serial Port Control Codes 10 5 0 Troubleshooting 14 6 0 Specifications 15 ...

Страница 5: ...anel has a push button switch with corresponding LED indicator for the selection of video source The front panel also features mode selection buttons to allow the unit to operate automatically based on video sync signal detection This unit can be controlled by either manually using the front panel switch automatically based on video detection or remotely through an RS232 serial port The unit can b...

Страница 6: ...urces 9 Can be manually controlled 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 input 1 or no priority 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 Compatible with the Universal M...

Страница 7: ...nit has 1 video and audio output labeled Output Connecting the DVS 2A Connect your video and audio sources such as computer or notebook PC to Input 1 and Input 2 Connect the display device such as a monitor or a video projector to the switched video and audio outputs SW Output Connect the included power supply to the DVS 2A Select the desired mode of operation including the priority for your video...

Страница 8: ...2 Port DVI Switch with Audio Serial Control 6 Connection Diagram MODEL DVS 2A REAR PANEL Universal Mounting Bracket ...

Страница 9: ...dio on the switched out rear connector MODEL DVS 2A FRONT PANEL Modes of Operation The unit can operate in either Auto or Manual mode by pressing the mode button In Auto mode the DVS 2A will automatically select the input with active video and audio The presence of video is determined by examining the V Sync signal or optionally the 5 VDC signal from DVI input connectors The front panel switched o...

Страница 10: ...ble Equalization The use of long DVI cables can cause the Video image to degrade to unacceptable levels By pressing and holding BOTH the Mode SELECT and Priority SELECT buttons for 3 seconds the video boost circuit will be enabled and the LED s will flash momentarily acknowledging the selection was changed Both of the GREEN LED s flash when the BOOST is enabled and the RED LED s flash when the BOO...

Страница 11: ...oft Windows HyperTerminal generally found in the Accessories Communication folder To configure HyperTerminal Connect direct to any available COM port 4800 Baud 8 bits No Parity 1 Stop bit No flow control Settings per following figures After power up the unit will output the following menu in ASCII through its serial port MENU Version 1 0 1 PC 1 Input B Blank 2 PC 2 Input U Un blank A Auto mode E E...

Страница 12: ...cts input 1 immediately and unconditionally The device will respond with PC 1 Input selected If the device is in AUTO mode the device will respond with Error The unit is in auto mode ASCII 2 Hex 32 or Decimal 50 Selects input 2 immediately and unconditionally The device will respond with PC 2 Input selected If the device is in AUTO mode the device will respond with Error The unit is in auto mode ...

Страница 13: ...ame The device will respond with Auto mode selected Detection Method 1 Vertical sync 2 5V Power 3 Vertical sync 5V power Current detection is 3 1 3 In Auto mode the device automatically switches to the video audio input source that is active Active means that video signal has sync signal it does not mean there is a non static screen ASCII M or m Hex 4D 6D or Decimal 77 109 Enters Manual mode The d...

Страница 14: ...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 output is muted ASCII U or u Hex 55 75 or Decimal 85 117 Un blanks the output The device will respond with Unblank mode sel...

Страница 15: ...nt selection of the switched output mode and priority buttons ASCII C or c Hex 43 63 or Decimal 67 99 Displays the menu The device will respond with MENU Version 1 0 1 PC 1 Input B Blank 2 PC 2 Input U Un blank A Auto mode E Enable boost M Manual mode D Disable boost P PC 1 priority R Report N No priority F Factory Defaults C Command menu ASCII F or f Hex 46 66 or Decimal 70 102 Causes the system ...

Страница 16: ...rranty Contact HRT Support at 714 641 6607 or via email or web If you need to ship your switch for repair 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 ...

Страница 17: ...ize 1 3 High x 8 5 Wide x 2 6 Deep Weight 1 1 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 Data...

Страница 18: ...2 Port DVI Switch with Audio Serial Control 16 ...

Страница 19: ......

Страница 20: ...Product Designed and Made in the USA ...

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