Kramer Electronics VS-411 video switch
Contents
1. unit Figure 2 Connecting the Unbalanced Stereo Audio Output Figure 3 illustrates how to Reese TE connect an unbalanced source to the balanced stereo audio input on the VS 1211 LGR Source Figure 3 Connecting an Unbalanced Source to the Balanced Stereo Audio VS 1211 Input 1 Although only VS 1211 is mentioned this section also applies to the VS 1011 VS 811 VS 611 and VS 411 the user manual also includes the VS 1201x1 VS 1001xlm VS 801x1m VS 601xlm and VS 401xlm to which this addendum does not apply P N 2900 0020021 Al 1 1 1 INTRODUCTION Congratulations on your purchase of this Kramer Electronics switcher Since 1981 Kramer has been dedicated to the development and manufacture of high quality video audio equipment The Kramer industrial line has become an integral part of many of the best video audio production and presentation facilities around the world In recent years Kramer has redesigned and upgraded most of the industrial line making the best even better Kramer s line of professional video electronics is one of the most versatile and complete available and is a true leader in terms of quality workmanship price performance ratio and innovation In addition to the Kramer line of high quality video switchers such as the one you have just purchased Kramer also2. aoan si QO ELO 9 o ca CL e 0000 ooo ure es is O 8 D0000790000009k Us ci E Dj 10000000 2 o dooooag 1 IP ez o a gt z 00 00 a esa Oo 3 o O o ne o o o o 2 ooooooon ooooooog o 309 gooogcocoo o 5 o 5 gooocacocesd o J35 o o o cr oo o o Jo o om o nd o oo o Ra me SRACELLELELI ooonocoooacfooocgooo l o an ESSE LE LEERLO l i 2 69 so LA se a o gooooocaogcoooo o o s o 3 o DpO0000D000000000 o o GUFTTETEEEETI 3 o pococonano o O yee a ja HE o jo y alia 5 an9 o a fo Saro o a 07 oj ja e sevsy El 8 a me g af EN o N 8 Le Ao Jj 8009 0 5333 O 3 H an an 3 H rere 0000 0000 o o d d NUVONOO3S ARAIN So ES o aa dss O vua a O vio 335 OWSHd d _ 2090 E are 2 0 3 3 3 HINH olo oooo ooooo0 ale Hd Hd dd Yodo O AYYNIHd O 0000 O Figure 3 Location of Internal Jumpers J21 External sync termination ON J20 Vertical sync source External J22 Input 1 termination ON J23 33 Inputs 2 12 termination ON J35 Serial 24x1 or Parallel mode 12x2 select SERIAL J34 Linked sync source Local or from other machine linked to current switcher LOCAL FACTORY DEFAULT KRAMER ELECTRONICS LTD 13 9 3 10 10 1 10 2 The In
3. VS SERIES SWITCHERS This section shows you all of the controls and connections of your switcher Understanding all of the controls and connections helps you realize its full power All the switchers described in this manual are equipped with RS 232 Connectors for PC control and the connector wiring is described in Figure 1 The Kramer VS 1211 vS 1201x1 VS 1011 VS 1001xlm VS 811 VS 801xlm VS 611 VS 601xlm VS 411 and VS 401xlm Vertical Interval Switchers provide truly effortless switching between twelve ten eight six or four video and balanced unbalanced audio inputs to one output video and audio Switching is done during vertical interval either of source no 1 or of the video connected to the external sync socket The switchers may be controlled in three ways touch buttons RS 232 RS 485 and contact closure via a remote socket on the back of the machines All the units in this line can be interconnected and cascaded two VS 1211 machines become 24x1 etc The machines may also be operated in parallel three VS 1211 machines become a 12x3 video component switcher Video signal bandwidth is 250MHz typical allowing the machines to be used in the most demanding applications RS 232 Null Modem Connection PIN 5 Connected to PIN 5 Ground PIN 3 Connected to PIN 2 PIN 2 Connected to PIN 3 Female DB9 From PC Male DB9 To Switcher PIN 4 Connected to PIN 6 PINS 8 7 1 Connected together If a shielded cable is used connect
4. PC Its function is to convert the PC output to a null modem output and permit two way communication between the switcher and the PC This is effected by the interconnections within the plug 12 4 Adding Outputs Two VS 1211 switchers may be interconnected to function as a 12x2 switcher by connecting the same numbered sources to the same numbered inputs of both switchers However before doing so each switcher input has an internal jumper that must be properly set up to avoid double loading Proceed as follows 1 After disconnecting the switcher from the mains voltage carefully remove the cover of the first switcher that is to receive the source signals remove jumpers J21 to J33 for VS 1211 and relocate them in their alternate positions floating on the pin remote from the input socket and not connected in any circuit 2 The input impedance of each input is now High Z not 75ohm terminated and is therefore suitable for this application In the second switcher the terminating jumpers stay in place providing 75ohm terminations Thus you do not have to open the second switcher Carefully close the first switcher KRAMER ELECTRONICS LTD 17 3 Connect the output from video source 1 to the first switcher input 1 then to the second switcher input 1 using a T or Y connector Repeat for source 2 and input 2 etc 4 Connect one acceptor to the output of one switcher and another acceptor to the output of the other switcher You no
5. VS 1N via a 25 wire flat cable equipped with the appropriate connectors and may be purchased separately as a small single unit An alternative option is the VS 1P2 a dual VS 1P unit in a 19 inch rack configuration The VS 1N VS 1P set up is an ideal remote control for use in video production studios in live broadcasting configurations in CCTV and in security applications The remote connector socket pinout and functional description are shown in Figure 4 KRAMER ELECTRONICS LTD 14 REMOTE CONTROL FUNCTIONAL DESCRIPTION PINS 13 14 15 eN INPUT 8 INPUT 7 INPUT 6 INPUT 5 INPUT 4 INPUT 3 INPUT 2 INPUT 1 gt GROUND gt INPUT 12 gt INPUT 11 INPUT 10 gt INPUT 9 VIVIVIViIVivViviy Balanced Audio Pinout IN1 IN2 IN3 IN4 INS ING IN7 IN8 INQ IN10 IN11IN 12 OUTRS485 IN1 IN2 IN3 IN4 INS ING IN7 IN8 INQ IN10 IN 11IN 12 OUT 1 1 1 1 1 1 1 1 Bot Fr To a 9 I Car CUP Prt rT Tr Li 45 45 E E 45 45 ATAT H E FBA tado tE tt H IN 10 IN 11 IN 12 OUT To NEXT REMOTE To PC Setup Remote Control Connector Figure 4 VS Series Remote Connector Socket and Balanced Audio Pinout KRAMER ELECTRONICS LTD 15 11 CONNECTING TO A PC To connect directly to a PC without using the KRAMER Null Modem Adapter make connections as in Figure 1 To use the KRAMER Adapter instead recommended plug one end into the PC s serial port then c
6. also be controlled via RS 485 5 To synchronize the machines for vertical interval switching to input 1 of the G unit daisy chain from G s input 1 to the ext sync input of R and continue to the ext sync input of B using T connectors Place the following jumpers in their alternate positions J22 and J20 in the G unit and J21 in the R unit Also ensure that the following jumpers are in their factory default positions J34 in all the units J20 in the R and the B units and J21 in the B unit To synchronize using an external sync signal configure R and B as described above but this time daisy chaining from G s ext sync Connect the external sync to G and set G s jumper J20 and J22 to their factory default positions and J21 to its alternate position 6 Now connect the R G and B outputs of camera 1 to input 1 on each of the switchers respectively those of camera 2 to input 2 on each of the switchers respectively and continue until all five camera R G and B outputs have been connected to the appropriate switcher inputs in the same order Let us call them switchers R G and B 7 Connect the single outputs of switchers R G and B to the R G and B inputs respectively of a professional acceptor such as a monitor or VCR 8 Turn the power ON and select the input number to be switched to the acceptor Controlling Several Independent Switchers Via a Single PC Port 1 Assign unique machine numbers to each switcher 2 Connect via
7. connector One video composite single component 1Vpp 750hm on BNC connector VS 1211 VS 1201x1 Three video 1Vpp 750hm on BNCs VS 1001xlm 801xlm 601xIm 401xlm One audio balanced unbalanced audio up to 28 Vpp 500hm 24dBm on snap fit terminal blocks for the 11 group only or RCA connector for the 1201xl only 3 sets of stereo audio on RCAs VS 1001xlm VS 801xlm VS 601xlm VS 401x1m Bandwidth 250 MHz 3dB for VS 1211 VS 1011 VS 811 VS 611 VS 411 VS 1201x1 Video 400 MHz 3dB for VS 1001xlm VS 801xlm VS 601xlm VS 401xIm Nonlinearity SEO Dif Phase Dit Cala ae Bandwidth 55kHz 0 1dB Audio Audio S N gt 95dB unweighted Ratio 2 Harmonic lt 0 003 1kHz Audio THD 0 013 Noise Audio 79dB Crosstalk Video Controls Bottom accessible trimmers for video gain 1 2 to 1 8dB Luma cable EQ 0 to 1 3dB Dimensions 19 x 7 x 1U rack mountable W D H Weight ys 1211 vs 1011 vs 811 VS 611 vs 411 vs 1201x1 VS 1001xIm VS 801xIm vs 601x1 VS 401x1 m eig 3 1kg 2 9kg 2 9kg 2 88kg 2 68kg 3 1kg 2 9kg 2 9kg m2 88kg 2 68kg 7lbs 6 6lbs 6 5lbs 6 4Ibs 5 9lbs 71bs 6 6lbs 6 5Ibs 6 4Ibs 5 9lbs Power consumption 16VA 18 4VA 16VA 16 1VA 18 4VA 19 5VA Power Source 230VAC 50 60 Hz 115VAC U S A KRAMER ELECTRONICS LTD 3 4 1 v HOW DO I GET STARTED The fastest way to get started is to take your time and do everythin
8. impedance 75ohms 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 the final result For long distances over 15 meters 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 and video lines should be installed far from any mains power cables electric motors transmitters etc even when the cables are shielded KRAMER ELECTRONICS LTD A 2 SPECIFICATIONS Models VS 1211 VS 1011 VS 811 VS 611 VS 411 VS 1201x1 VS 1001xlm VS 801xlm VS 601xlm VS 401xlm Inputs 12 10 8 6 4 video composite single component 1Vpp 750hm on BNC connectors 12 10 8 6 4 balanced unbalanced audio 4dBm 10kohm on 2 part snap fit terminal blocks for the 11 group only or RCA connectors for the 01xl m group only One external sync input or composite video 1 Vpp 750hm on BNC connector One RS 232 DB 9 control socket DB 9 socket to next RS 485 terminal block DB 15 for remote
9. offers a full line of high quality industrial and broadcast distribution amplifiers processors interfaces controllers and computer related products Kramer welcomes your inquiries for Kramer equipment or custom manufactured products engineering private labeling and OEM manufacturing per your specifications This manual includes configuration operation and option information for the following products from the Kramer VS line of video switchers These VS switchers are similar in operation and features and differ in their audio input and output type Balanced Audio Family VS 1211 12x1 composite single component video amp balanced audio switcher VS 1011 10x1 composite single component video amp balanced audio switcher VS 811 8x1 composite single component video amp balanced audio switcher VS 611 6x1 composite single component video amp balanced audio switcher VS 411 4x1 composite single component video amp balanced audio switcher VVVVV Unbalanced Audio Family vVS 1201x1 12x1 composite single component video unbalanced audio switcher VS 1001xlm 10x1 composite single component video DA amp unbalanced audio switcher VS 801xlm 8x1 composite single component video DA amp unbalanced audio switcher VS 601xlm 6x1 composite single component video DA amp unbalanced audio switcher VS 401xlm 4x1 composite single component video DA amp unbalanced audio switcher VVVVV A Word on Video Audio Switchers A v
10. over the video signal video gain down to full fade log or linear definition control log or linear contrast control color saturation control black level control red green and blue controls and a screen splitter control for before after comparison The Input switch control is audio follow video VM 1411 Video Balanced Stereo Audio Distribution Amplifier can be serially connected between the switcher and the acceptors for video and audio distribution It is a full broadcast state of the art machine designed for studio and other applications The VM 1411 has two inputs video and audio each splitting to 5 outputs The user may select 2 x 1 5 or 1 10 operation via front panel control switches Several VM 1411 units may be chained through the looping inputs Output signals are user selectable DC or AC coupled for highest flexibility Audio outputs are buffered and isolated from each other allowing Hi Fi Balanced audio distribution gt VIDEO TESTER A new unique patented indispensable tool for the video professional the video Tester is used to test a video path leading to from an amplifier By pressing only one touch switch it can trace missing signals distinguish between good and jittery VCR sourced signals and identify the presence of good signals Whenever a video signal is missing because of bad connections cable breaks or faulty sources the video Tester is all you need KRAMER ELECTRONICS LTD 7 5 KRAMER
11. the shield to PIN 5 PIN 7 Connected to PIN 5 Ground PIN 2 Connected to PIN 2 PIN 3 Connected to PIN 3 Female DB25 From PC Male DB9 To Switcher PIN 20 Connected to PIN 6 PINS 8 5 4 Connected together If a shielded cable is used connect the shield to PIN 7 DB25 and PIN 5 DB9 Figure 1 RS 232 Control Connector Wiring KRAMER ELECTRONICS LTD 5 1 Getting to Know Your Switcher Most front rear panel features of the switchers described in this manual are very similar Therefore only the VS 1211 and the VS 1201xl are described and they represent the rest of the switchers The main difference is that the 11 group has snap fit terminal block connectors for balanced audio and the 01xI group has RCA connectors for unbalanced audio Front rear panel features of the VS 1211 and VS 1201x1 VS 1001xlm switchers are described in Figure 2 Table 1 and Table 2 INPUT SELECTOR 6 7 CO j 12x1 Vertical Interval Switcher VS 1211 O 7 230 VAC 50 60 Hz 77 o Eo of any 0000000 0000 OTH REMOTE ToNext Setup any T Ol POWER INPUT SELECTOR C KK DDDODODODO 10x1 Vertical Interval Switcher VS 1001 xM C 60060000000000 A ET 99229080900099900090009000000000090 an D 00000 00000000 000 OOOOOOOOOO OOOO E L g Ext Sync IN 1 IN2 IN3 IN Setup 0100 Ne VS 1001xIm Front and Back panel OG
12. 1 group or RCA connector for the O1xI group 3 RS 485 Two part snap fit terminal Used for bi directional communication with another switcher or PC block through RS 485 interface 4 AUDIOR snap fit terminal blocks 12 10 8 6 or 4 right channel inputs used to connect the appropriate for the 11 group or RCA number of stereo audio input sources 1 12 connectors for the 01xP group 5 OUT R snap fit terminal blocks for Right channel audio output 3 outputs for xlm series the 11 group or RCA connector for the 01xP group 6 Ext Sync BNC connector Connection of an external sync composite video input 7 IN1 IN12 BNC connectors 12 10 8 6 or 4 video inputs used to connect the appropriate number of composite or single video input sources including cameras VCRs Supported formats composite single component video 8 OUT BNC connector s Video output having same connector and formats as the input 3 outputs for xlm series 9 DB 9 female To PC connector Used for control of the switcher from a PC or remote control panel through RS 232 interface NOTE Operation of the switcher from a remote PC may be performed by the K Switch Software provided with the switcher 10 REMOTE DB 15 connector Used for remote contact closure control see Figure 4 11 To Next DB 9 connector Used for looping to the next switcher 12 SETUP DIP switches Allow proper configuration of the control sig
13. KRAMER ELECTRONICS Ltd USER MANUAL Vertical Interval Switchers MODELS VS 1211 VS 1011 VS 811 VS 611 VS 411 With Balanced Audio VS 1201x1 VS 1001xlm VS 801xIm VS 601xlm VS 401xlm With Unbalanced Audio IMPORTANT Before proceeding please read paragraph entitled Unpacking and Contents Section Ne R o x E Table of Contents Name INTRODUCTION A Word On Video Audio Switchers Factors Affecting Quality of Results SPECIFICATIONS HOW DO I GET STARTED UNPACKING AND CONTENTS Optional Accessories KRAMER VS SERIES SWITCHERS Getting to Know Your Switcher INSTALLATION Rackmounting CONNECTING TO VIDEO DEVICES Connecting to the VS 1211 1201x1 1001xIm CONNECTING TO AUDIO DEVICES Connecting to the VS 1211 Connecting to the VS 1201x1 DIP SWITCHES JUMPERS AND TRIMMERS DIP Switches Jumpers their Uses and Set up Requirements The Internal Trimmers CONTROLLING THE SWITCHER The VS 2000 System The VS 1N VS 1P System CONNECTING TO A PC New Protocol 2000 Changing Communication Protocols Additional Software Options USING THE SWITCHER Powering on the Switcher Operating an Individual Switcher Selecting an Input on the Switchers Selecting the Proper Sync Format Using the VS 2000 Using the PC Control Software Adding Outputs Adding Inputs Video Component and YC Switching Controlling Several Independent Switchers via a Single PC Port TAKING CARE OF YOUR SWITCHER TROUBLESHOOTI
14. NG Power and Indicators Video Signal Audio Signal Software Control Switching Malfunctions Vertical Interval PROTOCOL USED FOR VS 1211 1201x1l COMMUNICATION Limited Warranty KRAMER ELECTRONICS LTD Table of Contents Continued List of Illustrations Figure Page 1 RS 232 Control Connector Wiring 8 2 VS 1211 1201 Front Rear Panel Features 9 3 Location of Internal Jumpers 13 4 VS Series Remote Connector Socket and Balanced Audio Pinout 15 5 Connecting Two Switchers to add Outputs 18 List of Tables Table 1 VS 1211 1201 Front Panel Features 10 2 VS 1211 1201 Rear Panel Features 10 3 DIP Switch Settings 12 KRAMER ELECTRONICS LTD ADDENDUM VS 1211 VS 1011 VS 811 VS 611 VS 411 User Manual The following section is added to the manual as follows Connecting the Balanced Unbalanced Stereo Audio Input Output The VS 1211 has two sets of balanced inputs IN 1 to IN 12 that create a balanced stereo input left and right and two sets of balanced outputs that create a balanced stereo output left and right see Figure 4 in the user manual IN OUT Figure 1 shows an example Lor Gx of how to wire a balanced stereo audio input output connection Figure 1 Connecting the Balanced Stereo Audio Input Output L OUT R OUT Figure 2 illustrates how to es es wire an unbalanced acceptor to the balanced stereo audio output of the
15. OOOODOODOODODDOOOODOOOOOOODO VO ff KARA AAA AAR ES Sf dle oh 230 VAC FUSE 9000000000 LF EEk QQQ o IN6 IN7 INS INQ x 10 IN 11 IN 12 To NEXT REMOTE To PC Setup 50 60 Hz VS 1201xl Front and Back panel ve Figure 2 VS 1011xIm VS 1201x1 Front Rear Panel Features KRAMER ELECTRONICS LTD Table 1 VS 1211 1201 1001xIm Front Panel Features Feature Function POWER Switch Illuminated switch Supplies power to the unit INPUT SELECTOR pushbuttons Each input may be selected by the corresponding input select button The buttons illuminate when pressed and the illuminated input select button identifies the active input 3 Internal cable EQ trimmer Internally located and accessed through hole in the switcher base It allows if necessary to control cable equalization 4 Internal LEVEL trimmer Internally located and accessed through hole in the switcher base It allows if necessary to adjust switcher output signal level Table 2 VS 1211 1201 1001xlm Rear Panel Features No Feature Function 1 AUDIO L snap fit terminal blocks 12 10 8 6 or 4 left channel inputs used to connect the appropriate for the 11 group or RCA number of stereo audio input sources 1 12 see Figure 4 connectors for the 01x group 2 OUT L snap fit terminal blocks for Left channel audio output 3 outputs for xlm series the 1
16. adapter Each switcher in the configuration should be allocated a unique machine number and the Reply option should be to ON see Table 3 Table of DIP Switch Settings The system may also be controlled via RS 485 8 Connect the sources to the appropriate switcher inputs 9 Connect the power cable of each switcher to the mains supply and turn ON each switcher 10 You now have a 24 or 36 etc input switcher complex with one output Video Component and YC Switching A most important application for interconnected switchers is in professional component video switching where smooth switching is required free from transient effects Four switchers of the same type are required for RGBS systems three for RGB or YUV systems and two for YC systems The following describes how to set up the RGB video component application with five professional video sources each with Red Green and Blue RGB outputs Sync on Green NOTE In the following description R G B refers to three different switchers required for the RGB implementation 1 Interconnect three same model switchers of the VS 1211 family via their RS 485 ports A to A B to B etc 2 Onall the units except one set the Dipswitch Reply option to OFF 3 Set all the switchers to the same Machine number Dipswitch 4 If RS 232 control is required connect the PC via the null modem adapter to the unit in which the Reply option is set to ON the system may
17. board is disconnected and cannot transfer the switch command to the video The RS 485 control is fed by a flat cable from the upper audio board to a socket on the main board One of its connectors may be disconnected Turn OFF the mains switch remove the power cord from the mains socket and carefully remove the cover of the switcher Verify that all the flat cables from the main board to the control board from the audio board to the main board and from the switchboard to the main board are undamaged and properly connected NOTE Sometimes connectors work loose and have to be reinserted Perform this firmly but with care KRAMER ELECTRONICS LTD 21 14 4 Software Problem Software version is not updated 14 5 Control Problem No control of switcher from VS 2000 control panel No control of switcher from PC software 14 6 Switching Malfunctions Problem The switcher succeeds in switching a number of sources then fails to switch one The switcher turns ON but will not switch at all Carefully remove the switcher cover and identify the EPROM chip that is located in the middle of the main board marked by a white sticker Remove the chip with the proper tools and insert the new EPROM carefully observing proper polarity Confirm that the connecting cable is wired for pins 1 9 straight through Confirm that all DIP switches on the switcher have been set properly Keep in mind that if you are only con
18. cribing its operation To operate interconnected switchers via RS 232 and the KRAMER K Switch software perform the following steps in order before connecting the power cables 1 Set up the Dipswitch on each switcher in accordance with Table of DIP Switch Settings Table 3 Section 9 and mark them accordingly for future reference 2 Set up the jumpers as described in Jumpers Their Uses and Set up Requirements Section 9 2 3 Connect the first switcher to the second switcher via their RS 485 communication ports connect A to A and B to B Similarly continue the connection from the second to the third and so on 4 Connect the first switcher to the PC s COM port via the null modem adapter provided see Note below and Figure 1 Make sure that the RS 232 cable is not more than 30 feet long 6 If several machines are looped interconnect as described in the relevant section below 12 4 12 5 12 6 or 12 7 7 Connect the power cable of each switcher to the mains and turn them ON 8 Activate the computer and the KRAMER K Switch software Then click the mouse button at the appropriate location on the monitor display to operate all the switchers simultaneously A NOTE The KRAMER null modem adapter is a small plug with two connectors a DB 9 on one side and a DB 25 or DB 9 on the other We provide it with all switchers that have RS 232 ports It interfaces between the DB 9 connector on the switcher and the connector on the
19. e Make sure the receptacle is active outputting the proper mains voltage 3 If there is still no power check the fuse Remove power cord from the AC outlet and from the machine and then using a flat head screwdriver remove the fuse holder located directly below the power connector Confirm that the fuse is good by looking at the wire connected to the ends of the fuse If the wire is broken replace the fuse with another with the same value Remedy Confirm that your sources and output device are powered on and connected properly Video signals connected to the input of your switcher should be of an identical signal format at the output of your source Video signals at the output of your switcher should be of an identical signal format as at the input of your display or recorder Confirm that any other switchers in the signal path have the proper input and or output selected Use the Video Tester to test the video path leading to from your switcher see section 4 1 Video Tester Verify that the video line is well interfaced through 75ohm impedance otherwise it results in a video level that is too high or too dim when looping is performed and the termination switches are not in proper position Confirm that the connecting cables are of high quality properly built and terminated with 750hm BNC connectors Check level controls located on your source input device or output display or recorder The switcher contains two internal
20. e is not present then this confirmation is not sent to the PC Information sent from the Master to the PC is done using the same format i e 0 Machine Number 1 New Switch Status The rate of data transfer is always 9600 baud with no parity 8 data bits and 1 stop bit KRAMER ELECTRONICS LTD 23 LIMITED WARRANTY Kramer Electronics hereafter Kramer warrants this product to be free from defects in material and workmanship under the following terms HOW LONG IS THE WARRANTY Labor and parts are warranted for three year from the date of the first customer purchase WHO IS PROTECTED Only the first purchase customer may enforce this warranty WHAT IS COVERED AND WHAT IS NOT COVERED Except as below this warranty covers all defects in material or workmanship in this product The following are not covered by the warranty 1 Any product which is not distributed by Kramer or which is not purchased from an authorized Kramer dealer If you are uncertain as to whether a dealer is authorized please contact Kramer at one of the agents listed in the web site www kramerelectronics com 2 Any product on which the serial number has been defaced modified or removed 3 Damage deterioration or malfunction resulting from a Accident misuse abuse neglect fire water lightning or other acts of nature unauthorized product modification or failure to follow instructions supplied with the product b Repair or attempted repai
21. e video audio stereo sources to the input sockets of the switcher 2 Connect a video audio stereo acceptor to the output socket of the switcher KRAMER ELECTRONICS LTD 16 12 2 1 Selecting an Input on the Switchers Input selection on the switchers described in this manual is simply made by pressing buttons marked 1 2 etc on the front panel or by operating your preferred remote device see KRAMER Switcher Remote Control Options These buttons correspond to the input connections as marked on the back panel 12 2 2 Selecting the Proper Sync Format The Sync will be provided from an external video source If you wish instead to use the sync of the video source connected to Input 1 you must make an internal jumper adjustment as described previously see section 9 2 12 2 3 Using the VS 2000 Connect as required each of the VS 2000 ports to each of the switcher groups Perform the preset procedure to identify the switchers to the VS 2000 before you activate the system You can control the switcher groups from the panel touch buttons You can also control the VS 2000 by a remote computer connected to the To PC connector on the VS 2000 You will see on the screen a complex of switchers covering all the switcher groups connected to the VS 2000 You can address and control each of them from the PC 12 3 Using the PC Control Software The switcher comes with K Switch control software for Windows 95 and a booklet des
22. g right the first time Taking 15 minutes to read this manual may save you a few hours later You don t even have to read the whole manual At the beginning of each section you ll find an overview of the section So if the section doesn t apply to you you don t have to spend your time reading it UNPACKING AND CONTENTS The items contained in your Kramer VS switcher package are listed below Please save the original box and packaging materials for possible future transportation and shipment of the video switcher This User Manual Your KRAMER Switcher A Power Cord KRAMER K Switch Software for Windows 95 98 A CD plus Booklet or download from the web KRAMER Null Modem Adapter Connector A Concise Directory of KRAMER Products VVVVVV Optional Accessories The following accessories which are available from Kramer can enhance implementation of your amplifier For information regarding cables and additional accessories contact your Kramer dealer gt BNC Y Connector Used for looping purposes and splits the incoming signal to enable connection of an additional machine gt SP 11 Video Audio Processor can be serially connected between the video audio source and the switcher for video and audio control correction The machine provides camera control and luminance white balance correction The SP 11 is also capable of performing composite to Y C conversion and bi directional transcoding The machine allows full control
23. ideo audio switcher usually switches between several sources inputs and one or more acceptors outputs A switcher that allows several inputs to be connected to several outputs simultaneously is called a Matrix Switcher Switchers may be of the electronic or mechanical type Most matrices are of the active electronic type with many crosspoints Vertical Interval Switching frequently used in video ensures that the transition from one video source to another such as switching between two genlocked cameras is smooth and without interference The switching and changeover is done during the blanked vertical interval period when the transition is hidden Genlocked means synchronized so that the color and phase information from each source is identical Thus switching is done with no interference no rolling no color loss and no jumping on the screen Since the Syncs come with the same timing all the information is identical and the transition between one source and the other is smooth Vertical Interval Switching is needed when recording or transmitting a video program involving several video sources as in live broadcast to ensure clean undisturbed picture transitions Matrices and switchers may sometimes be RS 232 or RS 485 422 controlled Each of these options is a way of remotely controlling a video audio device switcher SEG etc using a PC with a serial port or another device that uses a similar communication protocol The range consists
24. is operated via the RS 232 or RS 485 422 connector or when it is interconnected with other switchers These switches allow proper configuration of the control signals received and transmitted through the RS 232 control port Each of the VS switchers allows master slave configurations This allows the switchers to operate independently or in conjunction with each other KRAMER ELECTRONICS LTD 11 Table 3 DIP Switch Settings Switcher DIP Switch 1 Reply 2 3 Machine 1 Master ON ON Machine 2 Slave ON ON Machine 3 Slave ON OFF Machine 4 Slave ON OFF Machine 5 Slave OFF ON Machine 6 Slave OFF ON Machine 7 Slave OFF OFF Machine 8 Slave OFF OFF NOTE The Slave Reply settings are all ON or all OFF depending on the requirements of the system see detailed configuration in section 12 4 12 6 The Master Reply setting is always ON 9 2 Jumpers their Uses and Set up Requirements The switcher has additional adjustments and settings These include the internal jumpers WARNING Mains voltage is accessible inside the switcher so always turn off the switcher and remove its power cable from the mains socket before removing its cover The jumper locations are illustrated in Figure 3 and their functional operation is described below gt Each switcher input has its own internal jumper In the VS 1211 these jumpers are numbered J21 to J33 and they are factory located in the po
25. ld be equal in length NOTE The switchers described in this manual are very similar The connections of the VS 1211 and the VS 1201xl are described and may be applied accordingly to the others Connecting To the VS 1211 1201x1 1001xIm Video sources and output devices connected to the VS 1211 1201x1 1001xlm models support composite single component video signal types via BNC connectors CONNECTING TO AUDIO DEVICES Connecting To the VS 1211 Audio sources and output devices such as amplifiers or recorders may be connected to the VS 1211 switcher through the snap fit terminal blocks located on the back of the unit Connecting To the VS 1201x1 1001xlIm Audio sources and output devices such as amplifiers or recorders may be connected to the VS 1201x1 switcher through the RCA type connectors located on the back of the unit DIP SWITCHES JUMPERS AND TRIMMERS Consider the VS 1211 as an example of all the switchers in the family It switches video and balanced stereo audio simultaneously As mentioned previously there are three options for operating the switcher All are available without removing the switcher cover gt It can be operated by touching one of the front panel switches gt It can be operated by a remote PC via the RS 232 or RS 485 422 connectors on its rear panel gt It can be operated using the contact closure option DIP Switches The DIP switch see Table 3 on the rear panel should be set when the switcher
26. modifications to the unit without the expressed approval of the manufacturer will void user authority to operate the equipment B gt Use the supplied power cord to feed power to the machine Bo Please use recommended interconnection cables to connect the machine to other components KRAMER ELECTRONICS LTD 25 For the latest information on our products and a list of Kramer distributors visit our Web site www kramerelectronics com Updates to this user manual may be found at http www kramerelectronics com manuals html We welcome your questions comments and feedback Institute of Quality amp Control Kramer Electronics Ltd Web site www kramerelectronics com E mail info kramerel com P N 2900 002002 REV 2
27. nals received and transmitted through the RS 232 or RS 485 control port master slave configurations and device ID numbers 13 Power Connector A 3 prong AC connector allows power to be supplied to the unit Directly underneath this connector a fuse holder houses the appropriate fuse KRAMER ELECTRONICS LTD 10 6 6 1 7 1 8 1 8 2 9 1 INSTALLATION Rackmounting Each of the amplifiers included in this manual may be rackmounted in a standard 19 1U EIA rack assembly and includes rack ears at the ends of the front panel The optional VS 2000 controller requires 2U of rack height at 3 5 These devices do not require any specific spacing above or below the unit for ventilation To rack mount any of the switchers simply place the unit s rack ears against the rack rails of the rack and insert standard screws through each of the four corner holes in the rack ears CONNECTING TO VIDEO DEVICES Video sources and output devices such as monitors projectors or recorders may be connected to the switchers through the BNC type connectors located on the back of the unit Please keep in mind that the input signal format must match that of the output signal format Example If input is Composite video then output is Composite video All signal connections that use more than one cable interconnecting between devices should be of equal length Example R G B cables between a camera and the switcher shou
28. of a number of models having between twelve and four inputs as indicated by the model name The audio output is either balanced or unbalanced Switching is effortless and is performed during the vertical interval of source 1 or of the video available at the external Sync socket The switchers can be controlled by touch buttons on the front panel by a PC via the switcher s built in RS 232 and or RS 485 422 communication ports or by contact closure via a remote socket on the back panel KRAMER ELECTRONICS LTD 4 All the models can be interconnected in a variety of ways For example two VS 1211 units become 24x1 or 12x2 etc Three or four VS 1211 units depending on whether the system is RGB or RGBS become a 12x1 video component switcher Finally the video signal bandwidth is 225MHz typical which permits the switchers to be used in the most demanding applications 1 2 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 target Sockets and connectors also must match the required
29. onnect from the other end to the switcher using a 9 pin flat cable Alternatively connect only pins 2 3 and 5 from the Adapter to the switcher one to one connection 11 1 New Protocol 2000 All the switcher described in this manual have built in a dual communication protocol option The standard protocol described in this manual allows simple and fast control of a single switcher or several machines connected together The new communication protocol named PROTOCOL 2000 allows the user to control several different switchers or switchers matrix groups from one screen The PC software backing up the new protocol is called K ontrol allowing viewing and monitoring four different machines which have protocol 2000 built in from one screen The new protocol allows more control over the switchers but is more complicated than the current protocol supported by the K Switch software The full set of software and documentation is available on the software CD and on Kramer s website free for download The new software package allows the user to install all versions of software suitable for the machine used For the machines described in this manual both the K Switch and the K ontrol software may be installed 11 1 1 Changing communication protocols You can work with one of 2 protocols To work with PROTOCOL 2000 simultaneously press buttons 1 and 4 on the front panel and turn the machine off for at least 5 seconds When you turn on the machine it will
30. r by anyone not authorized by Kramer c Any shipment of the product claims must be presented to the carrier d Removal or installation of the product e Any other cause which does not relate to a product defect f Cartons equipment enclosures cables or accessories used in conjunction with the product WHAT WE WILL PAY FOR AND WHAT WE WILL NOT PAY FOR We will pay labor and material expenses for covered items We will not pay for the following 1 Removal or installations charges 2 Costs of initial technical adjustments set up including adjustment of user controls or programming These costs are the responsibility of the Kramer dealer from whom the product was purchased 3 Shipping charges HOW YOU CAN GET WARRANTY SERVICE 1 To obtain service on you product you must take or ship it prepaid to any authorized Kramer service center 2 Whenever warranty service is required the original dated invoice or a copy must be presented as proof of warranty coverage and should be included in any shipment of the product Please also include in any mailing a contact name company address and a description of the problem s 3 For the name of the nearest Kramer authorized service center consult your authorized dealer KRAMER ELECTRONICS LTD 24 LIMITATION OF IMPLIED WARRANTIES All implied warranties including warranties of merchantability and fitness for a particular purpose are limited in duration to the length of thi
31. remove the power cable from the mains socket and carefully remove the cover of the switcher Carefully remove the audio board by unscrewing the four upper board screws The upper board can now be raised with ease Find jumper J20 also J34 in an interconnected configuration and set up the Sync source in accordance with Jumpers Their Uses and Set up Requirements see section 9 2 until the acceptor a VCR for example has readjusted itself to the new color information 15 PROTOCOL USED FOR VS 1211 1201xl COMMUNICATION The protocol used for communication between the PC and the Master VS 1211 1201x is defined as follows LSB NO N7 is used for communication between the Slave and the Master only and is always O for communication with the PC N6N5N4 is the binary value of the Machine we are addressing minus one e g if we wish to address the Master Machine 1 by definition then N6N5N4 000 if we wish to address Machine 6 then N6N5N4 101 N3N2NI1NO is the binary value of the input to be selected i e N3IN2N1NO 0111 is equivalent to pressing switch 7 on the front panel N6 N5 na N3 N2 N1 Where Several special codes are also valid N3N2N1NO0 1101 requests that the Machine being addressed sends its present status to the PC i e which input is selected on its front panel N3N2N1NO0 1110 is an OK handshake i e confirmation that the instruction was received by the addressed Machine If the addressed Machin
32. roughout J34 is the jumper to be used for this task It is factory located to identify the switcher in which it sits Thus in the switcher to which the active sync source will be connected the jumper must be left in the factory located position In all the other switchers in the interconnected complex J34 must be relocated in its alternate position KRAMER ELECTRONICS LTD 12 J21 J20 J22 J23 J24 J25 J26 J27 J28 J29 J30 J31 J32 J33 Output LEVEL Cable EQ J34 Osma op 8 CO ae E sare e 29 Soo oo oy OP ETS cp 5 5 es O nono gt MO dll 8 9089 8 a Kol i ON O boss Y ae a 29 B Pos lo o lo ret 05 o T o o gt E o ce 8 y sa E 8 gt E 7 3 EE Gs il ooocoon Lee as o 0000000 o o o Pe o o o_o wo 20 K anag 0000000 u22 oo Aer 0308981 0 OO ces o O 2 FJ E ES 20 0 o pos w E 8 ure ow o ae a gonoaano JO de 6 A o o E g z a ara ES ot ex o o O 0O 0 O O O OO OO OO OO OO OO OO OO O O O ee goog 190000 o euopocoa E IAS ole on e
33. round from any piece of video equipment in your signal path Check the following to remove hum bars 1 Confirm that all interconnected equipment is connected to the same phase of power if possible 2 Remove equipment connected to that phase that may introduce noise such as motors generators etc 3 Disconnect all interconnect cables and reconnect them one at a time until ground loop reappears Disconnect the affected cable and replace or insert an isolation transformer in the signal path Confirm that your sources and output device are powered on and connected properly Audio signals connected to the input of your switcher should be properly wired to the output of your source Audio signals connected to output of your switcher should be properly wired to the input of your switcher or recorder Confirm that any other switchers in the signal path have the proper input and or output selected Pay special attention to input switchers that may be built into your switcher or recording device Audio level is too low The switcher switches the video but does not switch the audio The switcher will not switch via the RS 485 control Confirm that the connecting cables are of high quality and properly built Take special care in noting the wiring configuration of balanced to unbalanced cables Check level controls located on your source input device or output display or recorder One of the audio cables leading to the main
34. s warranty EXCLUSION OF DAMAGES Kramer s liability for any defective products is limited to the repair or replacement of the product at our option Kramer shall not be liable for 1 Damage to other property caused by defects in this product damages based upon inconvenience loss of use of the product loss of time commercial loss or 2 Any other damages whether incidental consequential or otherwise Some countries may not allow limitations on how long an implied warranty lasts and or do not allow the exclusion or limitation of incidental or consequential damages so the above limitations and exclusions may not apply to you This warranty gives you specific legal rights and you may also have other rights which vary from place to place NOTE All products returned to Kramer for service must have prior approval This may be obtained from your dealer NOTICE This equipment has been tested to determine compliance with the requirements of EN 50081 Electromagnetic compatibility EMC generic emission standard Part 1 Residential commercial and light industry EN 50082 Electromagnetic compatibility EMC generic immunity standard Part 1 Residential commercial and light industry environment CFR 47 FCC Rules and Regulations Part 15 Radio frequency devices Subpart B Unintentional radiators CAUTION BO Servicing the machines can only be done by an authorized Kramer technician Any user who makes changes or
35. sition that provides a 75ohm input termination If the 75ohm termination is not required the jumper must be relocated to its alternate position floating on the pin remote from the input socket and not connected in any circuit The particular input is now High Z not 75ohm terminated and may be used for looping When two VS 1211 switchers are to be interconnected to provide a 12 input 2 output 12x2 configuration by looping Input 1 of switcher 1 to Input 1 of switcher 2 etc J35 must be located in its alternate position in all of the switchers This is also the case for configurations 12x3 12x4 etc using 3 4 or more switchers When two VS 1211 switchers are to be interconnected to provide a 24 input 1 output 24x1 configuration J35 must be located in its factory set position in all of the switchers This is also the case for configurations 36x1 48x1 etc using 3 4 or more switchers Jumper J20 is used to define the Sync video source for all the switcher inputs so that Vertical Interval Switching can be assured The jumpers are factory located for an External Sync source If the sync of the video source on Input 1 is preferred then J20 must be relocated to its alternate position in any one of the switchers When switchers are to be interconnected the switcher that contains the active video sync source must be identified to all the switchers so that it can be sensed by all of them and thus ensure Vertical Interval Switching th
36. ss to various pieces of equipment monitors mixers editors VCRs etc The VS 2000 can be controlled by pressing its front panel touch buttons or via a PC using the RS 232 control port KRAMER PC control software is provided with the BC 2000 Since new switcher types are constantly being added and older types upgraded KRAMER provides a small door marked EPROM on the VS 2000 rear panel for easy replacement of the existing chip with an updated chip This will contain the appropriate information for the new and modified switchers KRAMER will make updated chips available periodically The VS 2000 can store and recall preferred configurations for convenience in studio control The VS 1N VS 1P System The VS 1N RS 232 Remote Controller interfaces between any KRAMER RS 232 controlled switcher of the VS 1211 411 series and a remotely located simple switching assembly By pressing one of the remote switches a connection command is sent to the switcher via the VS 1N and the RS 232 link The VS 1N permits remote control of a KRAMER switcher without interfering with local control by the built in touch buttons on the switcher itself and without using a PC In fact the VS 1N is a translator simulating a computer to the switcher via its RS 232 port It accepts mechanical contact switching from the remote point using a KRAMER VS 1P satellite unit or a switch panel that the customer rigs up himself The VS 1P is an optional 24 switch assembly connected to the
37. ternal Trimmers The trimmers are internally located and are accessed through holes in the switcher base see section 14 2 Weak Switcher Video Signals These allow you if necessary to adjust the switcher output signal level and cable compensation CONTROLLING THE SWITCHER The VS 1211 411 and VS 1201x1 401xlm switcher families can be controlled by the following methods gt By touch buttons on the front panel see section 12 2 Operating an Individual Switcher gt By direct remote contact closure via the DB 15 socket a switch panel that the customer rigs up gt By PC or other remote control via the switcher s RS 232 or RS 485 422 connector There are three different options for the RS 232 or RS 485 422 remote control 1 APC that communicates with the switcher directly 2 A Serial remote control unit such as the KRAMER VS 2000 or VS 3000 see section10 1 or the VS 1N P see section 10 2 combination 3 Any RS 232 or RS 485 422 controller which is programmed according to the protocol of the switcher see section 15 Protocol Used for VS 1211 Communication The VS 2000 System The KRAMER VS 2000 is a Programmable Remote Control Unit designed for use in video production and duplication studios and in live broadcasting and editing configurations It provides access to and control of up to six groups of KRAMER switchers from a single point A group can comprise several interconnected switchers which in turn permit acce
38. the null modem cable from the PC to the Master machine 3 Interconnect the switchers via their RS 485 ports A to A B to B etc TAKING CARE OF YOUR SWITCHER Do not locate your switcher in an environment where it is susceptible to dust or moisture These may damage the electronics and cause erratic operation or failure Do not locate your switcher where temperature and humidity may be excessive Do not clean your switcher with abrasives or strong cleaners Doing so may remove or damage the finish or may allow moisture to build up Take care not to allow dust or particles to build up inside unused or open connectors TROUBLESHOOTING NOTES 1 2 Please note that if the output signal is disturbed or interrupted by very strong external electromagnetic interference it should return and stabilize when such interference ends If not turn the power switch off and on again to reset the machine If the recommended actions still do not result in satisfactory operation please consult your KRAMER Dealer KRAMER ELECTRONICS LTD 19 14 1 Power and Indicators Problem No Power 14 2 Video Signal Problem No video at the output device regardless of input selected Video level is too high or too dim Weak switcher input signals 1 Confirm that the rocker switch is in the ON position and that the lamp is illuminated 2 Confirm that power connections are secured at the amplifier and at the receptacl
39. trimmers accessed via two holes in the base of the switcher These allow if necessary to adjust switcher output signal level For example if you are using a long cable with heavy losses you can compensate for it by fine tuning the signal using the two trimmers One trimmer adjusts the gain of the whole video signal and the other adjusts only the high frequencies of the video which have been degraded by a low quality cable The hole closer to the power socket controls the cable compensation the other controls the video level WARNING Do not use the trimmers except in cases where the cable losses result in poor resolution of detail or when the whole signal level crashes Once they have been touched the accurate signal transparencies that have been fine tuned in the factory are lost To readjust to the original signal status you need a stable signal generator and a good quality signal analyzer KRAMER ELECTRONICS LTD 20 Problem Remedy Noise bars are rolling up or down in the output image Hum bars ground loop are caused by a difference in the es ground potential of any two or more devices connected to Low frequency hum in the output signal 14 3 Audio Signal Problem No audio at the output device regardless of input selected your signal path This difference is compensated by passing that voltage difference through any available interconnection including your video cables WARNING Do not disconnect the g
40. trolling one switcher on a specific port that switcher must be assigned the ID of 1 If controlling more than one switcher on a single port all switchers must be of the same type and power to all switchers must be on Confirm that you have the proper machine number and control port selected on the VS 2000 For instance if you are controlling a single machine on port 1 then both of these should be set to 1 Confirm that you have the proper switcher type selected on the VS 2000 If not go back to Section 12 2 3 of this manual Using the VS 2000 Remote Control Panel Confirm the wiring of the connecting cable This pin configuration may be found in Section 11 Connecting to a PC or Compatible System Cable length should not exceed 25 feet Confirm that all DIP switches on the switcher have been set properly Keep in mind that if you are only controlling one switcher on a specific port that switcher must be assigned the ID of 1 If controlling more than one switcher on a single port all switchers must be of the same type and power to all switchers must be on Confirm that the baud rate of your computer COM port is set to the same as that of your switcher 9600 Baud Confirm that the proper COM port is selected in the control software Confirm that bi directional communication is enabled on all switchers Please refer to Section 9 The Configuration Switches jumpers and trimmers for proper configuration for yo
41. ur switcher With custom software do not send multiple commands at the same time The switcher must complete one command before receiving another Confirm that the computer you are using supports true RS 232C protocol Computers such as the Apple Macintosh do not Malfunction in the particular source or cable assembly NOTE The most common failure mode in transferring the signal of an audio source is a break in the connecting wire Disconnect the source from a channel that is switching successfully and connect the suspect source to it If the channel continues to switch successfully then there is something wrong with the switcher or the suspect source was not connected properly If it does not continue to switch successfully then there is something wrong with the source or cable assembly Check them One of the two flat cables leading from the main board to the control board may be disconnected and the switch command is not being transferred to the switcher KRAMER ELECTRONICS LTD 22 14 7 Vertical Interval Problem The switcher is switching but there There is no vertical interval Sync source for switching It should be available are transitional effects when using either on video input 1 or on an external genlocked source as a live video or a genlocked sources The picture live black burst signal Which one will depend on certain jumper settings jumps and rolls and the color is lost Turn OFF the power switch
42. urces 2 Video Audio acceptors Figure 5 Connecting Two Switchers for adding More Outputs 12 5 Adding Inputs Two or more VS 1211 switchers can be interconnected to function as a 24x1 or a 36x1 etc switcher as follows 1 Make sure that jumper J35 in at least one of the switchers is in its factory located position See Figure 3 If necessary carefully remove the covers of the switchers to do so 2 Connect a straight 9 wire flat cable from the To Next DB 9 connector on the first switcher to the To Next DB 9 connector on the second switcher from the second to the third and so on until all the required switchers are interconnected Make sure that the interconnecting lengths of cable are as short as possible 3 Interconnect the switchers via their RS 485 ports A to A B to B etc 4 Assign a unique machine number to each of the switchers Set DIP switches as in Table of DIP Switch Settings see section 9 5 On all the units set the Dipswitch Reply option to ON 6 In order to feed the sync information from one of the units to all the others interconnect the units via their To Next connectors using a flat cable In this case jumper J34 must be set in its factory located position in the unit with the Sync source but in its alternate position in the others KRAMER ELECTRONICS LTD 18 12 6 12 7 13 14 7 For RS 232 control of the system connect the PC to the Master switcher via the null modem
43. use PROTOCOL 2000 Alternatively you can work with the old protocol To do so simultaneously press buttons 1 and 3 on the front panel and turn the machine off for at least 5 seconds When you turn on the machine it will use the old protocol 11 1 2 Additional software options The latest version of the K switch program allows the user to convert any of the switchers described in this manual to a very sophisticated sequential switcher with no extra cost The program allows full control on the switching sequence dwell time for each input etc The latest software upgrades are available at Kramer s web site www kramerelectronics com at the technical support section 12 USING THE SWITCHER 12 1 Powering on the Switcher The switcher should only be powered on after all connections are completed and all source devices have been powered on Do not attempt to connect or disconnect any video audio or control signals to the switcher while it is powered on The switcher may be powered on by pressing the toggle switch on the far left front panel to the up position In the up position the toggle switch glows and the active input button illuminates as well 12 2 Operating an Individual Switcher NOTE The operation of all the switchers described in this manual is similar The VS 1211 operation is described and may be applied accordingly to the others Operation of the VS 1211 switcher units by local control is as follows 1 Connect up to twelv
44. w have a twelve input switcher complex with two outputs 5 You can continue to expand the number of outputs by adding a third switcher etc to obtain a 12x3 switcher etc In such cases relocate to their alternate position all input jumpers in all switchers except the last so that all the lines are properly terminated by 75ohm Audio can be connected in a similar manner but you do not have to open switchers and remove jumpers just connect the wires from audio input to audio input There is no need for special termination since the input impedance is high For RS 232 control of the system connect the PC to the Master switcher via the null modem adapter 7 Each switcher in the configuration should be allocated a unique machine number and the Reply option should be set to ON see Table 3 DIP Switch Settings Jumper J35 should be relocated to its alternate position 8 The system may also be controlled via its RS 485 port see section 12 3 above D A typical switchers setup where additional outputs are added is described in Figure 5 INPUT SELECTOR DO 230 vac 300000000 aa dea N9 IN10 IN INAZ OUT o REMOTE ToNext Setup Fuse Connect between RPDE of both switchers and sources using T connectors Terminate only upper switcher Hi 50 60 Hz O p Ext Sync O O IN3 N4 INS NS IN7 N8 N9 N10 IN O O To PC E5 ToNext Setup To R9 232 port of a PC Genlock Source 12 Video Audio so
Download Pdf Manuals
Related Search