CLT-361 User`s Manual
Contents
1. to Camera Link enabling the use of HD SDI cameras with Camera Link frame grabbers CLT 361 functionality is described in the following sections Mode Select Switch Link Scan Conversion Transmitters Test Pattern Generator g Video Processing 9 bet Camera Link Mappin Video 6 8 D BNC apping Data S Q 3 5 ii Indicator Image Buffer CLT 361 Camera Link Translator Figure 1 1 CLT 361 Block Diagram The camera interface receives video data from the HD SDI camera via a 75 ohm coaxial cable A BNC connector is located on the rear panel of the CLT 361 The CLT 361 frame grabber interface incorporates the connector signals pinout and chipset in compliance with the Camera Link specification The CLT 361 incorporates the medium configuration interface 1 e 2 connectors The CLT 361 may be used in either base single connector or medium dual connector configuration The interface between the CLT 361 and the frame grabber includes only the video data signals The frame grabber receives video data but cannot control or communicate with the camera The CLT 361 is powered by an external wall plug in power supply A multi nation power supply is standard Optionally the CLT 361 is available with a locking plug power supply The locking plug reduces the risk of accidental disconnection from the rear panel power jack The CLT 361 is als2. CLT 361 CAMERA LINK TRANSLATOR Users Manual Document 201140 Rev 0 1 2 28 2013 preliminary Vivid Engineering 159 Memorial Drive Suite F Shrewsbury MA 01545 Phone 508 842 0165 Fax 508 842 8930 www vividengineering com info vividengineering com Table of Contents 1 1 1 2 1 3 1 3 1 1 3 2 1 3 3 1 3 4 1 3 5 1 3 6 1 3 7 1 3 8 1 4 1 4 1 1 4 2 1 5 2 1 2 2 2 3 3 1 3 2 Introduction Overview Features Functional Description Supported Video Formats HD SDI Format Indicator Camera Link Mapping Mode Switch Cable Equalizer Deserializer Scan Conversion Test Pattern Generator Typical Applications Base Configuration Application Medium Configuration Application Specifications Interface Front Panel Connections Rear Panel Connections Cable Shield Grounding Mechanical Dimensions External Power Supply 0 O Nn FR N 12 13 144 144 15 15 16 16 17 Revision History 18 1 Introduction 1 1 Overview The CLT 361 Camera Link Translator enables the use of HD SDI cameras with Camera Link fame grabbers The CLT 361 supports 1080p 10801 and 720p camera video formats Camera Link video 15 output as 24 bit RGB 30 bit RGB monochrome or YCbCr CLT 361 features include camera format auto detection a built in test pattern generator and front panel video format indicator The CLT 361 supports Camera Link base and medium c
3. Format 24 bit RGB 3x8 RGB 10 bit Monochrome 10 bit single tap 10 bit 4 2 2 YCbCr 10 bit dual tap Y A CbCr B 30 bit RGB 3x10 RGB 10 bit 4 4 4 YCbCr 30 bit RGB Cr R Y G Cb B Note that RGB and monochrome are common Camera Link formats 1 3 4 Mode Switch The CLT 361 incorporates an 8 position switch on the rear panel for selecting the various operating modes The mode switch positions are defined m Figure 1 3 YCbCr Select 0 4 4 4 1 4 2 2 Spare future use 0 reserved 1 reserved Test Pattern Format 00 1080 30 01 1080 25 10 1080 24 11 720 60 Test Pattern Select 0 Color bars 1 Diagonal wedge Test Pattern Enable O Patterns off normal 1 Patterns on Camera Link Format 00 24 bit RGB ia 5 01 10 bit Monochrome 1 up switch position 10 30 bit RGB 0 down switch position 11 YCbCr Figure 1 3 Mode Switch Definition 1 3 5 Cable Equalizer The CLT 361 incorporates an adaptive cable equalizer for receiving the SMPTE 259M 292M HD SDI signal input The equalizer performs DC restoration and corrects for dispersive losses associated with long coaxial cable transmission The adaptive equalizer is SMPTE 259M and SMPTE 292M compliant and equalizes up to 200 meters of Belden 1694A coaxial cable 1 3 6 Deserializer The CLT 361 incorporates a deser
4. ear 6 12 5 62 Mounting Holes 4 0 15 dia Front 1 Figure 3 2 CLT 361 Mounting Footprint 3 2 External Power Supply The CLT 361 is powered by 4 5 9 0 VDC and incorporates 8 2 1 x 5 5 mm DC power jack that accepts either a standard barrel style power plug or a special locking version Power plug polarity is center positive The CLT 361 includes a multi nation wall mount power supply that handles a wide power range 90 264 VAC 47 63 Hz and comes with a set of outlet plugs suitable for most countries US Europe UK etc The CLT 361 may also be purchased with a locking plug power supply or without power supply The locking plug reduces the risk of accidental disconnection from the rear panel power Jack 4 Revision History Table 5 1 CLT 361 User s Manual Revision History 201140 0 1 2 28 2013 Preliminary release of manual 18
5. frame grabber In this example Camera Link video 15 being output as 24 bit RGB a common format The associated rear panel dipswitch settings for this mode is all switch positions down CLT 361 Camera Link Translator HD SDI Camera Camera Link Frame Grabber Figure 1 6 Base Configuration Application 11 1 4 2 Medium Configuration Application A CLT 361 application using Camera Link medium configuration is shown in Figure 1 7 An HD SDI camera is connected to the BNC connector on the rear panel via a HD SDI 75 ohm coaxial cable Two Camera Link cables are used to connect the CLT 361 to the frame grabber In this example Camera Link video is being output as 30 bit RGB which is Camera Link medium configuration 2 cables required The associated rear panel dipswitch settings for this mode is switch position 1 up and all other switch positions down CLT 361 Camera Link Translator HD SDI Camera Camera Link Frame Grabber Figure 1 7 Medium Configuration Application 12 1 5 Specifications Table 1 2 CLT 361 Specifications Camera Interface SMPTE 259M 292M serial digital input HD SDI Camera Connector BNC 75 ohm 1920x1080 59 94 60i 29 97 30p 23 98 24p 25p 50i 1280x720 59 94 60p Frame Grabber Interface Camera Link base or medium configuration Frame Grabber Conn 26 pin MDR type Base config 24 bit RGB 10 bit mo
6. ializer device that is SMPTE 292M and SMPTE 259M compliant and deserializes decodes 1 485Gbps or 1 483Gbps serial component video data to 20 bit parallel data with a synchronized parallel word rate clock Functions performed by the deserializer include clock data recovery from the serial data serial to parallel data conversion SMPTE standard data decoding NRZI to NRZ conversion parallel data clock generation word framing CRC and EDH data checking and handling and automatic video format determination 1 3 7 Scan Conversion The CLT 361 supports both progressive scan and interlaced scan HD SDI video Interlaced scan in which a video frame is split into two fields 1 e odd and even lines and transmitted one field at a time 15 not supported by Camera Link To support interlaced video the CLT 361 performs a scan conversion in which the incoming interlaced video frame is first stored to an image buffer The video buffer is then output in progressive fashion This resequencing occurs automatically a supported HD SDI interlaced format is detected Note that the scan conversion causes an additional delay i e latency in the video path of approximately one frame time 1 6 33 ms for 10801 60 The progressive p video formats do not require scan conversion and do not incur the associated delay 1 3 8 Test Pattern Generator The CLT 361 incorporates a built in test pattern generator The test pattern generator is useful for verifyi
7. ng the link between the CLT 361 and frame grabber and for ensuring that the frame grabber is properly setup to acquire the converted video from the HD SDI camera The test pattern generator may be used with or without a camera connected The test pattern generator is enabled and controlled via the rear panel mode dipswitch see Section 1 3 4 When test pattern generation is enabled switch position 3 up an internal test pattern generator replaces the camera as video source When test pattern generator is enabled the front panel format indicator LEDS are off regardless if a camera is connected Test patterns are generated with image size of either 1920x1080 or 1280x720 and at a variety of frame rates as selected by the mode switch test pattern format field switch positions 5 amp 6 Two test patterns are available color bars or diagonal wedge Pattern selection 15 made with mode switch position 4 Figures 1 4 and 1 5 illustrate color bar and diagonal wedge patterns respectively Figure 1 4 Color Bars Test Pattern Figure 1 5 Diagonal Wedge Test Pattern 10 1 4 Typical Applications 1 4 1 Base Configuration Application A CLT 361 application using Camera Link base configuration is shown in Figure 1 6 An HD SDI camera is connected to the BNC connector on the rear panel via a HD SDI 75 ohm coaxial cable A single Camera Link cable 1s connected from the base connector on the CLT 361 front panel to the
8. nochrome 4 2 2 YCbCr Medium Config 30 bit RGB 4 4 4 YCbCr Pixel clock 74 MHz approx Color bar and monochrome wedge test patterns 4 5 9 VDC internally isolated 670 mA 5 VDC typical 5 28 x 1 18 H 6 12 D 0 to 90 non condensing Camera Formats Camera Link Video 13 2 Interface 2 1 Front Panel Connections The CLT 361 Camera Link Translator front panel is shown in Figure 2 1 The front panel contains two 26 pin MDR video connectors for connecting to the Camera Link frame grabber The front panel also incorporates a 3 LED video format indicator and LED power indicator The MDR 26 video connectors and signal assignments comply with the Camera Link base and medium configurations The connector assignments are as defined for the camera interface in the Camera Link Specification This arrangement provides compatibility with standard Camera Link cables Vivia Engineering Camera Link Translator CLT 361 O es oJ Ewe qA E je PWR FORMAT MEDIUM GRABBER BASE GRABBER Figure 2 1 CLT 361 Front Panel 14 2 2 Rear Panel Connections The CLT 361 Camera Link Translator rear panel is shown in Figure 2 2 The rear panel contains a standard 75 ohm BNC connector for connecting to the HD SDI camera an 8 position mode switch and the DC power Jack The DC power jack accepts either a standard 2 1 x 5 5 mm barrel style power plug or a special locking plug The locking plug has bayone
9. o available without power supply The CLT 361 DC power input is electrically isolated from the internal circuitry 1 3 1 Supported Video Formats The CLT 361 supports many popular but not all HD SDI video formats defined in SMPTE 259M and SMPTE 292M Table 1 1 identifies the formats supported Table 1 1 Supported HD SDI Formats e 10801 59 84 SMPTE 292M 1920x1080 59 94 fps interlaced e 10801 60 SMPTE 292M 1920x1080 60fps interlaced e 1080p 29 97 SMPTE 292M 1920x1080 29 97fps progressive e 1080p 30 SMPTE 292M 1920x1080 30fps progressive e 1080p 23 98 SMPTE 292M 1920x1080 23 98fps progressive e 1080p 24 SMPTE 292M 1920x1080 24 fps progressive e 1080p 25 SMPTE 292M 1920x1080 25fps progressive e 10801 50 SMPTE 292M 1920x1080 50fps interlaced e 720p 59 94 SMPTE 259M 1280x720 59 94fps progressive e 720p 60 SMPTE 259M 1280x720 60fps progressive The CLT 361 supported formats include both interlaced 1 and progressive p scan video Camera Link does not include a provision for handling interlaced video and the CLT 361 will automatically convert interlaced video to progressive See Section 1 3 6 for more information 1 3 2 HD SDI Format Indicator The CLT 361 automatically detects incoming HD SDI video and displays the format via three LEDs located on the front panel The LED codes are shown in Figure 1 2 The LEDs are off when no video 15 present when the video input is no
10. onfigurations The CLT 361 is housed in a sturdy compact aluminum enclosure A locking plug power supply is optional Vivia Engineering Camera Link Translator CLT 361 PWR FORMAT MEDIUM GRABBER BASE GRABBER 1 The Camera Link interface standard enables the interoperability of cameras and frame grabbers regardless of vendor The Automated Imaging Association ALA sponsors the Camera Link program including the oversight Camera Link Committee the self certification program and the product registry The Camera Link specification may be downloaded from the AIA website found at www machinevisiononline org 1 2 Features Enables use of HD SDI cameras with Camera Link frame grabbers SMPTE 259M 292M serial digital input 1920x1080 formats 59 94 601 29 97 30p 23 98 24p 25p 501 1280x720 format 59 94 60p Auto detects camera video format Camera Link base configuration output 24 bit RGB monochrome or 4 2 2 YCbCr Camera Link medium configuration output 30 bit RGB or 4 4 4 YCbCr Front panel video format indicator Rear panel mode selection switch Built in test pattern generator Isolated DC power input Multi nation power supply included locking plug version optional Sturdy compact aluminum enclosure w mounting flange 3 year warrantee 1 3 Functional Description A block diagram of the CLT 361 is provided in Figure 1 1 The CLT 361 performs real time conversion of HD SDI video
11. t style ears on the barrel Once inserted the plug is turned 1 4 turn clockwise This locks the connection and provides retention Plug polarity is center positive Recommended locking power plug is Philmore part number 2150 SDI INPUT Figure 2 2 CLT 361 Rear Panel 2 3 Cable Shield Grounding The Camera Link interface cable outer shields are connected to the CLT 361 aluminum case Case and endplate contacting surfaces are unpainted providing a Faraday cage to shield internal circuitry The case 15 isolated from the CLT 361 circuitry and the cable inner shields The Camera Link interface cable mner shields connect to circuit digital ground maintaining signal reference levels between the CLT 361 and the frame grabber The HD SDI 75 ohm coaxial cable BNC connector is isolated from the CLT 361 aluminum case 15 3 Mechanical 3 1 Dimensions The CLT 361 Camera Link Translator cabinet dimensions are shown in Figure 3 1 The CLT 361 is housed in a sturdy aluminum enclosure The body 15 extruded aluminum with detachable front and rear endplates The enclosure incorporates a mounting flange The flange contains four predrilled holes 0 15 diameter for convenient equipment mounting A mounting footprint drawing is provided in Figure 3 2 Camera Link Translator Vivia Engineering Figure 3 1 CLT 361 Cabinet Dimensions 16 R
12. t supported and when the CLT 361 is in test pattern mode 10801 59 84 or 60 1080 29 97 or30 1080 23 98 or 24 O FORMAT FORMAT FORMAT 1080 25 10801 50 720 59 84 or 60 O O FORMAT FORMAT FORMAT No Input Input Not Supported or Test Patterns Enabled O O O FORMAT Figure 1 2 HD SDI Format Indicator Codes 1 3 3 Camera Link Mapping The color format of received SMPTE 259M 292M HD SDI video is 10 bit 4 2 2 YCbCr The CLT 361 outputs video data on the Camera Link interface as raw unprocessed 10 bit 4 2 2 YCbCr or as converted to other color formats such as RGB monochrome and 4 4 4 YCbCr Note that YCbCr is not a standard Camera Link color format The Camera Link output format is selected via the rear panel mode dipswitch positions 1 2 8 See Section 1 3 4 Camera Link base configuration single cable from CLT 361 to frame grabber supports up to 24 bit video data Conversion to some output formats yields video data in excess of 24 bits These modes require a medium configuration connection to the frame grabber 1 6 2 Camera Link cables Table 1 1 lists the Camera Link video formats supported by the CLT 361 the associated configuration base or medium and the way in which the video data is mapped to Camera Link Table 1 1 Camera Link Mapping Camera Link Camera Link Configuration Camera Link Mapping Video
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