USER MANUAL
Contents
1. It can connect multiple ports to create from one to four bidirectional communication groups In particular the VS 4228 features e Simple to connect automatic master slave configuration e Abright LED display showing the status of the matrix switcher e Recall of up to 8 configuration setups via the non volatile memory e Control via the front panel buttons or remotely by RS 485 or RS 232 serial commands transmitted by a touch screen system PC or other serial controller Defining the VS 4228 8 Port RS 422 Matrix Switcher This section defines the VS 4228 MIIAIBAO Figure 1 VS 4228 8 Port RS 422 Matrix Switcher Front Panel Feature Function 5 OFF Button Pressing OFF after pressing a SLAVE button disconnects the MASTER To disconnect all the SLAVE devices press the ALL button and then the OFF button e STO Button Pressing STO STORE followed by an SLAVE button stores the current setting 7 RCL Button Pressing the RCL RECALL button and the corresponding SLAVE key recalls a setup The stored status flashes Pressing a different SLAVE button lets you view another setup After making your choice pressing the RCL button again implements the new status 8 SLAVE STATUS Labels identify a cross point between each SLAVE to which the MASTER displayed below is connected lo MASTER STATUS The number shows the selected MASTER switched to the SLAVE below the corresponding SLAVE label M IAIBAO 8ZZb SA RS 232 IN RS 2322. 232 OUT MACHINE 1 RS 232 OUT MACHINE 2 MACHINE amp Figure 8 Cascading Units via the RS 232 Control Interface 4 3 2 Cascading Via the RS 485 Control Interface To connect an RS 485 connector on one VS 4228 unit to an RS 485 connector on another unit 1 Connect the PIN on the first VS 4228 unit to the PIN on the second VS 4228 unit 2 Connect the PIN on the first VS 4228 unit to the PIN on the second VS 4228 unit 12 VS 4228 Connecting the VS 4228 3 If shielded cable is used for an RS 485 connection connect the shield to the Ground PIN Figure 9 illustrates the RS 485 line that connects e Between each VS 4228 unit e To the PC via a Kramer Tools VP 43xlI nterface Converter connect the PC s 9 pin D sub COM port to the RS 232 in 9 pin D sub F port on the VP 43xI Next connect the RS 485 port on the VP 43xI to the RS 485 ports on the VS 4228 units RS 232 IN RS 232 OUT KRAMER TOOLS Interface Converter 12v 0C CONTROL dhe RS 232 IN RS 232 OUT c 00000 00000 MACHINE 1 0000 000 4 CONTROL ma dehi RS 232 IN RS 232 OUT MACHINE 2 00000 00000 fy CONTROL nbJek RS 232 IN RS 232 OUT MACHINE amp Figure 9 Cascading Units via the RS 485 Control Interface Note When cascading multiple units using the RS 485 interface you must connect a 1000 terminator between the and pin
3. OUT CEEE CEEE 00000 00000 0000 0000 Feature Function 10 RS 422 9 pin D sub Connectors RS 422 bi directional ports 1 8 a CONTROL RS 485 Terminal Block Connector Connector for external RS 485 control PINOUT G CONTROL RS 232 IN 9 pin D sub Connector Connect to the PC serial port CONTROL RS 232 OUT 9 pin D sub Connector Connect to the RS 232 IN port of the next unit Power Connector with Fuse AG connector enabling power supply to the unit 3 2 About RS 422 RS 422 control switchers differ substantially from video and audio switchers in both design and in operation as Sections 3 2 1 to 3 2 6 describe 3 2 1 Signal Terminology Connections are between master and slave or controller and controlled devices rather than the regular In and Out or source and destination devices The difference is not merely one of semantics but a vital distinction when trying to understand the concept of RS 422 technology A regular In and Out switcher has separate input and output buttons on the front panel and separate ports for input and output connectors on the rear panel A master and slave control switcher has separate master and slave buttons on the front panel but shared master slave connectors on the rear panel 3 2 2 Bi directional Signals By using a pair of conductors each signal travels in both directions over a balanced line between master slave devices as Figure 3 illustrates LPINS 3 and 8 MASTER
4. SLAVE PINS 2 and 7 Figure 3 Bi directional Signals When a master device changes position with a slave device the pins automatically change as Section 3 2 4 describes and as Figure 4 illustrates PINS 2 and Lo lt MASTER PINS 3 and 8 Figure 4 Bi directional Signals II a VS 4228 Overview 3 2 3 3 2 4 3 2 5 A master device always transmits over pins 3 and 8 and receives over 2 and 7 A slave device always transmits over pins 2 and 7 and receives over 3 and 8 The communication path must be kept clear between the master and slave units in both directions since the slave device must respond to any command transmitted by the master If the master receives no response from the slave the master cancels the communication with the slave machine and sometimes flags a message no communication For example in video production when a special controller with play and rewind functionality is the master device each command transmitted to the slave device must reach that slave device and that slave device must respond otherwise the master device disconnects Device Definition In many broadcast applications different machines involved in production can be either slaves or masters Using a device as a master means that the device talks via pins 3 and 8 and istens via pins 2 and 7 In another setup that uses the same device as a slave this means that the device talks via pins 2
5. covers defects in materials and workmanship in this product What is Not Covered This limited warranty does not cover any damage deterioration or malfunction resulting from any alteration modification improper or unreasonable use or maintenance misuse abuse accident neglect exposure to excess moisture fire improper packing and shipping such claims must be presented to the carrier lightning power surges or other acts of nature This limited warranty does not cover any damage deterioration or malfunction resulting from the installation or removal of this product from any installation any unauthorized tampering with this product any repairs attempted by anyone unauthorized by Kramer Electronics to make such repairs or any other cause which does not relate directly to a defect in materials and or workmanship of this product This limited warranty does not cover cartons equipment enclosures cables or accessories used in conjunction with this product Without limiting any other exclusion herein Kramer Electronics does not warrant that the product covered hereby including without limitation the technology and or integrated circult s included in the product will not become obsolete or that such items are or will remain compatible with any other product or technology with which the product may be used How Long Does this Coverage Last Seven years as of this printing please check our Web site for the most current and accurate war
6. device with more than one slave device For example in a setup in which port 7 is the master and ports 5 3 and 6 are slaves the VS 4228 only transmits to the master the reply from port 3 and discards all the other replies Pay special attention in broadcast applications the most common reply message from a slave is the TIMECODE data therefore with the above described algorithm the response comes from the lowest numbered slave 4 Connecting the VS 4228 Always switch off the power to each device before connecting it to your VS 4228 After connecting your VS 4228 connect its power and then switch on the power to each device To connect the VS 4228 as illustrated in Figure 5 1 Connect ports 1 through 8 to all master and slave devices using 9 pin D sub M connector cables Not all ports have to be connected The power cord is not shown in Figure 5 2 If RS 232 control is required connect a PC via the null modem adapter when using the Kramer Control software or other controller as described in Section 4 1 3 If RS 485 control is required connect a cable to the RS 485 terminal block as described in Section 4 2 Video Player 1 VTR Serial Controller Video Player2 Video Recorder PC Controller Figure 5 Connecting the VS 4228 8 Port RS 422 Matrix Switcher VS 4228 Connecting the VS 4228 9 4 1 Connecting a PC or Controller to the RS 232 Port You can connect to the unit via a crossed RS 2
7. or Controller to the RS 485 Port 4 3 Cascading Multiple Units 5 Operating the VS 4228 6 Technical Specifications 7 Default Communication Parameters 8 Hex Codes Figures Figure 1 VS 4228 8 Port RS 422 Matrix Switcher Front Panel Figure 2 VS 4228 8 Port RS 422 Matrix Switcher Rear Panel Figure 3 Bi directional Signals Figure 4 Bi directional Signals II Figure 5 Connecting the VS 4228 8 Port RS 422 Matrix Switcher Figure 6 Crossed Cable RS 232 Connection Figure 7 Straight Cable RS 232 Connection with a Null Modem Adapter Figure 8 Cascading Units via the RS 232 Control Interface Figure 9 Cascading Units via the RS 485 Control Interface Introduction Welcome to Kramer Electronics Since 1981 Kramer Electronics has been providing a world of unique creative and affordable solutions to the vast range of problems that confront the video audio presentation and broadcasting professional on a daily basis In recent years we have redesigned and upgraded most of our line making the best even better Our 1 000 plus different models now appear in 11 groups that are clearly defined by function GROUP 1 Distribution Amplifiers GROUP 2 Switchers and Matrix Switchers GROUP 3 Control Systems GROUP 4 Format Standards Converters GROUP 5 Range Extenders and Repeaters GROUP 6 Specialty AV Products GROUP 7 Scan Converters and Scalers GROUP 8 Cables and Connectors GROUP 9 Room Connectivity GROUP 10 Accessories and Rack Ad
8. 32 connection using for example a PC A crossed cable or null modem is required as shown in method A and B respectively If a shielded cable is used connect the shield to pin 5 Method A Figure 6 Connect the RS 232 9 pin D sub port on the unit via a crossed cable only pin 2 to pin 3 pin 3 to pin 2 and pin 5 to pin 5 need be connected to the RS 232 9 pin D sub port on the PC Note There is no need to connect any other pins Figure 6 Crossed Cable RS 232 Connection Hardware flow control is not required for this unit In the rare case where a controller requires hardware flow control short pin 1 to 7 and 8 and pin 4 to 6 on the controller side Method B Figure 7 Connect the RS 232 9 pin D sub port on the unit via a straight flat cable to the null modem adapter and connect the null modem adapter to the RS 232 9 pin D sub port on the PC The straight cable usually contains all nine wires for a full connection of the D sub connector Because the null modem adapter which already includes the flow control jumpering described in Method A above only requires pins 2 3 and 5 to be connected you are free to decide whether to connect only these 3 pins or all 9 pins Null Modem Adapter Figure 7 Straight Cable RS 232 Connection with a Null Modem Adapter VS 4228 Connecting the VS 4 2 4 3 Connecting a PC or Controller to the RS 485 Port You can operate the VS 4228 via the RS 4
9. 85 port from a distance of up to 1200m 3900ft using any device equipped with an RS 485 port for example a PC For successful communication you must set the RS 485 machine number and bus termination To connect a device with a RS 485 port to the VS 4228 e Connect the A pin on the RS 485 port of the PC to the A pin on the RS 485 port on the rear panel of the VS 4228 e Connect the B pin on the RS 485 port of the PC to the B pin on the RS 485 port on the rear panel of the VS 4228 e Connect the G pin on the RS 485 port of the PC to the G pin on the RS 485 port on the rear panel of the VS 4228 Cascading Multiple Units You can cascade up to eight individual VS 4228 units to switch up to 64 master slave devices using either the RS 232 see Section 4 3 1 or RS 485 see Section 4 3 2 interfaces When cascading two or more devices you must set a unique machine number for each device To set the machine number 1 Turn the VS 4228 ON The flashing digit in the display is the machine number of the device 2 To set another number press the SLAVE button of the desired number while the digit is flashing The digit changes to the new number When it stops flashing the new machine number is set 4 3 1 Cascading Via the RS 232 Control Interface Connect the PC to units as described in Section 4 1 and shown in Figure 8 Use a straight cable and connect pins 2 to 2 3 to 3 and 5 to 5 CONTROL RS 232 IN RS
10. AW IF ANY PRODUCT TO WHICH THIS LIMITED WARRANTY APPLIES IS A CONSUMER PRODUCT UNDER THE MAGNUSON MOSS WARRANTY ACT 15 U S C A 2301 ET SEQ OR OTHER APPICABLE LAW THE FOREGOING DISCLAIMER OF IMPLIED WARRANTIES SHALL NOT APPLY TO YOU AND ALL IMPLIED WARRANTIES ON THIS PRODUCT INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR THE PARTICULAR PURPOSE SHALL APPLY AS PROVIDED UNDER APPLICABLE LAW Other Conditions This limited warranty gives you specific legal rights and you may have other rights which vary from country to country or state to state This limited warranty is void if i the label bearing the serial number of this product has been removed or defaced ii the product is not distributed by Kramer Electronics or ili this product is not purchased from an authorized Kramer Electronics reseller If you are unsure whether a reseller is an authorized Kramer Electronics reseller please visit our Web site at www kramerelectronics com or contact a Kramer Electronics office from the list at the end of this document Your rights under this limited warranty are not diminished if you do not complete and return the product registration form or complete and submit the online product registration form Kramer Electronics thanks you for purchasing a Kramer Electronics product We hope it will give you years of satisfaction For the latest information on our products and a list of Kramer distributors visit our Web site where updates
11. KRAMER ELECTRONICS LTD USER MANUAL MODEL vs 4228 8 Port RS 422 Matrix Switcher P N 2900 002033 Rev 4 VS 4228 Quick Start Guide This page guides you through a basic installation and first time use of your VS 4228 For more detailed information see the VS 4228 User Manual You can download the latest manual at http www kramerelectronics com Step 1 Check what s in the box VS 4228 8 Port RS 422 Matrix Switcher 1 Quick Start sheet 1 Power cord 1 User Manual 4 Rubber feet Windows based Kramer control software Step 2 Install the VS 4228 Mount the machine in a rack or attach the rubber feet and place on a table Step 3 Connect the masters and slaves pc Video Video Video Computer Player Player Recorder Controller Step 4 Connect the power Connect the power cord to the VS 4228 and plug it into the mains electricity Step 5 Operate the VS 4228 Associate master to slave devices Store and recall setup configurations from the front panel buttons using the STO and RCL buttons iene wel IOI OOOOOU Connect one master to all slave devices with the ALL button or disconnect devices with the OFF button OFF ALL Contents 1 Introduction 2 Getting Started 2 1 Achieving the Best Performance 3 Overview 3 1 Defining the VS 4228 8 Port RS 422 Matrix Switcher 3 2 About RS 422 4 Connecting the VS 4228 4 1 Connecting a PC or Controller to the RS 232 Port 4 2 Connecting a PC
12. and 7 and listens via pins 3 and 8 For example an edit controller always works as a master During an editing session a VTR may be the slave to the edit controller However in a duplication setup the VTR may become a master for a second VTR Automatic Configuration After connecting the 9 pin D sub connectors and cables between the controlled units the VS 4228 automatically configures which pins to use in the 9 pin D sub connector according to the assignment of each machine Port Definitions Modern equipment usually has only one connector RS 422 which functions as a master as well as a slave 3 2 6 Some older broadcast equipment contains 3 RS 422 connectors RS 422 In RS 422 Out and RS 422 In Out You can only connect a master to a RS 422 In port and you can only connect a RS 422 Out port to a slave When connecting to a RS 422 n Out port the unit changes dynamically automatically reconfiguring the 9 pin D sub port pins to be either a master or a slave More Than One Slave Communication between one master and one slave is simple However communication between one master and several slaves for example in duplication applications is more complicated If all the slaves were to respond simultaneously to a master command the system would lock up To avoid such a situation a special algorithm in the VS 4228 dictates that the master receives only the response from the highest priority slave the lowest numbered slave
13. apters and GROUP 11 Sierra Products Congratulations on purchasing your Kramer VS 4228 8 Port RS 422 Matrix Switcher which is ideal for the following typical applications e Remote control of video and audio production studios e Live broadcast remote control e CCTV and other remote control applications 2 2 1 Getting Started We recommend that you Unpack the equipment carefully and save the original box and packaging materials for possible future shipment Review the contents of this user manual Use Kramer high performance high resolution cables Use only the power cord that is supplied with this machine Go to http www kramerelectronics com to check for up to date user manuals application programs and to check if firmware upgrades are available where appropriate Achieving the Best Performance To achieve the best performance Use only good quality connection cables to avoid interference deterioration in signal quality due to poor matching and elevated noise levels often associated with low quality cables Do not secure the cables in tight bundles or roll the slack into tight coils Avoid interference from neighboring electrical appliances that may adversely influence signal quality Position your Kramer VS 4228 away from moisture excessive sunlight and dust VS 4228 Getting Startec 3 1 Overview The VS 4228 is a high performance bidirectional matrix switcher for RS 422 control signals
14. f this product is returned uninsured you assume all risks of loss or damage during shipment Kramer Electronics will not be responsible for any costs related to the removal or re installation of this product from or into any installation Kramer Electronics will not be responsible for any costs related to any setting up this product any adjustment of user controls or any programming required for a specific installation of this product How to Obtain a Remedy under this Limited Warranty To obtain a remedy under this limited warranty you must contact either the authorized Kramer Electronics reseller from whom you purchased this product or the Kramer Electronics office nearest you For a list of authorized Kramer Electronics resellers and or Kramer Electronics authorized service providers please visit our web site at www kramerelectronics com or contact the Kramer Electronics office nearest you In order to pursue any remedy under this limited warranty you must possess an original dated receipt as proof of purchase from an authorized Kramer Electronics reseller tf this product is returned under this limited warranty a return authorization number obtained from Kramer Electronics will be required You may also be directed to an authorized reseller or a person authorized by Kramer Electronics to repair the product If itis decided that this product should be returned directly to Kramer Electronics this product should be properly packed preferabl
15. face in and out INDICATORS 8 character display on the front panel STANDARDS COMPLIANCE TIA EIA 422 B and SMPTE 207M OPERATING TEMPERATURE 0 to 55 C 32 to 131 F STORAGE TEMPERATURE 45 to 72 C 49 to 162 F HUMIDITY 10 to 90 RHL non condensing DIMENSIONS 19 x 7 x 1U W D H rack mountable POWER SOURCE 230V AC 50 60 Hz 115V AC U S A 10VA WEIGHT 2 2 kg 4 88 lbs approx ACCESSORIES Power cord Windows Control Software Specifications are subject to change without notice at http www kramerelectronics com Technical Specifications 7 42 98 ts Default Communication Parameters RS 232 Protocol 2000 Baud Rate Data Bits Stop Bits Parity Command Format Example Output 1 to Input 1 Ethernet IP Address TCP Port Number Network Mask Default Gateway HEX 0x01 0x81 0x81 0x81 192 168 1 39 5000 255 255 255 0 192 168 1 1 Default Communication Parameters Hex Codes The following table includes Protocol 2000 hexadecimal codes the protocol uses 4 bytes of information data is at 9600 baud no parity 8 data bits and one stop bit Full details are available at our web site www kramerelectronics com 01 o o w o RoOrt RVSAROSARG LIMITED WARRANTY The warranty obligations of Kramer Electronics for this product are limited to the terms set forth below Whatis Covered This limited warranty
16. ranty information Whois Covered Only the original purchaser of this product is covered under this limited warranty This limited warranty is not transferable to subsequent purchasers or owners of this product What Kramer Electronics will do Kramer Electronics will at its sole option provide one of the following three remedies to whatever extent it shall deem necessary to satisfy a proper claim under this limited warranty 1 Elect to repair or facilitate the repair of any defective parts within a reasonable period of time free of any charge for the necessary parts and labor to complete the repair and restore this product to its proper operating condition Kramer Electronics will also pay the shipping costs necessary to return this product once the repair is complete 2 Replace this product with a direct replacement or with a similar product deemed by Kramer Electronics to perform substantially the same function as the original product 3 Issue a refund of the original purchase price less depreciation to be determined based on the age of the product at the time remedy is sought under this limited warranty What Kramer Electronics will not do Under This Limited Warranty If this product is returned to Kramer Electronics or the authorized dealer from which it was purchased or any other party authorized to repair Kramer Electronics products this product must be insured during shipment with the insurance and shipping charges prepaid by you I
17. s of the last VS 4228 on the line VS 4228 Connecting the VS 4228 eel Operating the VS 4228 Referring to the connection diagram in Figure 5 you see the following setup Master devices Port 1 PC Port 2 VTR Serial Controller Slave devices Port 3 Video Player 1 Port 4 Video Player 2 Port 8 Video Recorder The following examples show how to operate the VS 4228 1 To connect the PC to Video Player 2 Press SLAVE 4 then MASTER 1 The following status displays STATUS SLAVE 1 2 3 4 5 6 7 8 iiaii fot 2 To connect the VTR Serial Controller to Video Player 1 and PC to the Video Recorder Press SLAVE 3 MASTER 2 SLAVE 8 and MASTER 1 The following status displays STATUS SLAVE 1 2 3 4 5 6 7 8 ii 3 To connect the PC to all slaves Press ALL then MASTER 1 The following status displays STATUS SLAVE 1 2 3 4 5 6 7 8 Pot VS 4228 Operating the VS 4228 4 To disconnect the PC from the Video Player 2 in the previous status Press SLAVE 4 and OFF The following status displays STATUS me SLAVE 1 2 3 4 5 6 7 8 _ Pot 5 To disconnect all masters Press ALL then OFF The following status displays STATUS me SLAVE 1 2 3 4 5 6 7 8 _ fF VS 4228 Operating the VS 4228 6 Technical Specifications INPUT OUTPUT 8 in out ports on 9 pin D sub F connectors CONTROL Front panel buttons RS 485 and RS 232 serial inter
18. to this user manual may be found We welcome your questions comments and feedback Web site www kramerelectronics com KRAMER E mail info kramerel com SAFETY WARNING Disconnect the unit from the power supply before opening and servicing
19. y in the original carton for shipping Cartons not bearing a return authorization number will be refused Limitation on Liability THE MAXIMUM LIABILITY OF KRAMER ELECTRONICS UNDER THIS LIMITED WARRANTY SHALL NOT EXCEED THE ACTUAL PURCHASE PRICE PAID FOR THE PRODUCT TO THE MAXIMUM EXTENT PERMITTED BY LAW KRAMER ELECTRONICS IS NOT RESPONSIBLE FOR DIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM ANY BREACH OF WARRANTY OR CONDITION OR UNDER ANY OTHER LEGAL THEORY Some countries districts or states do not allow the exclusion or limitation of relief special incidental consequential or indirect damages or the limitation of liability to specified amounts so the above limitations or exclusions may not apply to you Exclusive Remedy TO THE MAXIMUM EXTENT PERMITTED BY LAW THIS LIMITED WARRANTY AND THE REMEDIES SET FORTH ABOVE ARE EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES REMEDIES AND CONDITIONS WHETHER ORAL OR WRITTEN EXPRESS OR IMPLIED TO THE MAXIMUM EXTENT PERMITTED BY LAW KRAMER ELECTRONICS SPECIFICALLY DISCLAIMS ANY AND ALL IMPLIED WARRANTIES INCLUDING WITHOUT LIMITATION WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE IF KRAMER ELECTRONICS CANNOT LAWFULLY DISCLAIM OR EXCLUDE IMPLIED WARRANTIES UNDER APPLICABLE LAW THEN ALL IMPLIED WARRANTIES COVERING THIS PRODUCT INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE SHALL APPLY TO THIS PRODUCT AS PROVIDED UNDER APPICABLE L
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