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7700 MultiFrame Manual
7736CEM Composite Encoder with Monitoring

Page - 28

Revision 1.5

*Grey background indicates un-implemented or un-tested features

7.6.1. Adding the NTSC Setup Pedestal

Video/SID

Composite NTSC analog video may have a 7.5 IRE pedestal while
4:2:2 SDI video does not. This control, when set to

On

, will add the

pedestal and re-scale the video accordingly. The setup pedestal
should not be present on composite video when operating in Japan.

Video Processing

NTSC setup
pedestal

Off
On

7.6.2. Line 21 Processing

Video/SID

Closed captioning has been defined to NOT have a 7.5 IRE pedestal,
but it is placed on the first active line of video where there may be a
pedestal. The upstream closed captioning encoder should not have
generated a setup pedestal. When encoding composite video with
properly keyed captioning, a pedestal must not be generated.

This control, when set to

Off

, will not create the 7.5 IRE pedestal on

line 21. This is the default state for properly generated captioning.

When set to

On

, the 7.5 IRE pedestal will be generated on line 21.

Use this state when there are no input captions.

Note: The

On

condition will only take effect if the

NTSC Setup

Pedestal

control is set to

On

.

Blank

is used to remove captioning from line 21.

If you need independent field 1 and field 2 on/off control of setup, set
this control to

Off

and then use the controls in the

VBI Processing

Menu.

Note: The captions are

Blank

ed from the main, high quality, output

only. This will allow the monitoring of upstream captioning on the

monitoring output

even when it is not desirable to have them passed

downstream on the program video.

Video Processing

Line 21 setup

Off,
On,
Blank

7.6.3. Colour Bars

Video/SID

Internally generated colour bars may be turned on to aid in monitor
calibration. To make sure that this control is not left on accidentally,
this parameter is not included in the preset management.

Warning: You cannot change the output phasing when the colour bars
are turned on. Be careful when adjusting genlock references when this
is turned on.

Video Processing

Colour bars

On,
Off

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Содержание 7700 Series

Страница 1: ...RENCE VIDEO INPUT 7 3 4 ANALOG MONITORING VIDEO OUTPUT 7 3 5 ANALOG AUDIO OUTPUTS A4 ONLY 7 3 6 UNBALANCED AES AUDIO INPUTS A4 ONLY 8 3 7 BALANCED AES AUDIO INPUTS A4 B ONLY 8 3 8 ELECTRICAL 8 3 9 PHYSICAL 8 4 STATUS LEDS 9 4 1 MODULE STATUS LEDS 9 4 2 AUDIO STATUS LEDS 10 5 AUDIO LEVELS HEADROOM CLIPPING AND THE BAR GRAPHS 11 6 AUDIO ALARM CALIBRATION PROCEDURE 12 6 1 CALIBRATE AUDIO SILENCE DETE...

Страница 2: ...ontal Phase of the Output Video PAL B 625 Video 24 7 5 10 Monitoring the Horizontal Delay between the Input and Output Video 24 7 5 11 Setting the Vertical Phase of the Output Video NTSC 525 or PAL M 525 Video 24 7 5 12 Setting the Vertical Phase of the Output Video PAL B 625 Video 24 7 5 13 Monitoring the Vertical Delay between the Input and Output Video 24 7 5 14 Setting the Colour Field Phase o...

Страница 3: ... Custom Colour 37 7 8 13 Setting The Level Bar Graph Size 38 7 8 14 Setting the Transparency Opacity of Bar Graph Background 38 7 8 15 Setting the Transparency Opacity of the Bar Graph Bars 38 7 9 CONFIGURING THE ON SCREEN DISPLAY CONTROLS 38 7 9 1 Descriptions of the On Screen Windows 39 7 9 1 1 Video Audio Status 39 7 9 1 2 Audio Bar Graphs 40 7 9 1 3 VITC Time Code Window 40 7 9 1 4 Program Rat...

Страница 4: ...tting the Audio Error Duration 51 7 11 5 Detecting Audio Over Level Faults 51 7 11 5 1 Setting the Audio Over Level 51 7 11 5 2 Setting the Audio Over Duration 51 7 11 6 Detecting Audio Silence Faults 52 7 11 6 1 Setting the Audio Silence Level 52 7 11 6 2 Setting the Audio Silence Duration 52 7 11 7 Detecting Audio Phase Reversal Faults 52 7 11 7 1 Setting the Audio Phase Reversal Level 52 7 11 7...

Страница 5: ... 8 3 4 7 1 Setting the Bar Graph Error Region 64 8 3 4 7 2 Setting the Bar Graph Warning Region 65 8 3 5 Phase Type 65 8 3 6 Phase Scale Position 65 8 4 AUDIO BAR GRAPH POSITIONS 65 8 4 1 Enable 66 8 4 2 Setting the Horizontal Position of On Screen Windows 66 8 4 3 Setting the Vertical Position of On Screen Windows 66 8 5 FAULT SETTINGS 66 8 5 1 Loss of Video Duration 67 8 5 2 Loss of Audio Durati...

Страница 6: ...525 74 8 8 11 VITC 625 74 8 8 12 PESA 525 74 8 8 13 PESA 625 75 8 8 14 Default SID Mode 75 8 8 15 Default SID Message 75 8 9 FAULT WINDOWS 75 8 9 1 Text 76 8 9 2 Background Colour 76 8 9 3 Text Opacity 76 8 9 4 Background Opacity 76 8 9 5 Setting the Horizontal Position of the Fault Windows 76 8 9 6 Setting the Vertical Position of the Fault Windows 76 8 9 7 Setting the Fault Window Font Size 76 8...

Страница 7: ...gger 83 8 13 2 Card Type 83 9 JUMPERS 84 9 1 TERMINATION JUMPERS 84 9 2 SELECTING WHETHER LOCAL FAULTS WILL BE MONITORED BY THE GLOBAL FRAME STATUS 84 9 3 CONFIGURING THE MODULE FOR FIRMWARE UPGRADES 84 Figures Figure 1 1 7736CEM A4 Block Diagram 3 Figure 1 2 7736CEM Block Diagram 3 Figure 1 3 7736CEM A4 B Block Diagram 4 Figure 2 1 7736CEM Rear Panels 5 Figure 4 1 LED Locations 9 Figure 8 1 Audio...

Страница 8: ...r un tested features Tables Table 4 1 Audio Channel Status LEDs 10 Table 7 1 PPM Bar Graph Characteristics 35 Table 7 2 Video Audio Status Screen Items 40 Table 7 3 Methods of Turning Windows and Bar Graphs On and Off 42 Table 7 4 Possible Error Conditions to Produce a Fault 50 Table 8 1 PPM Bar Graph Characteristics 62 ...

Страница 9: ...eved to be accurate and reliable However Evertz assumes no responsibility for the use thereof nor for the rights of third parties which may be affected in any way by the use thereof Any representations in this document concerning performance of Evertz products are for informational use only and are not warranties of future performance either expressed or implied The only warranty offered by Evertz...

Страница 10: ...7700 MultiFrame Manual 7736CEM Composite Encoder with Monitoring Revision 1 5 Grey background indicates un implemented or un tested features This page left intentionally blank ...

Страница 11: ...component serial digital output EDH analysis on SDI input Four composite analog video outputs WITHOUT OSD text or audio bargraphs Internal processing to maintain 10 bit digital video quality 10 bit output video digital to analog conversion One monitoring quality video output with OSD text and bargraph graphics User adjustable output video processing functions black level brightness gain contrast h...

Страница 12: ...a input BNC s unbalanced or removable terminal strip balanced The user can select either of these two sources for further processing The selected digital audio is delayed with S option to match the delay experienced by the video in the video synchronizer In addition the user can select additional audio delay On the 7736CEM A4 the audio is converted to balanced analog audio through a high quality 2...

Страница 13: ...Reference OSD Display Audio content analysis and Delay optional High Quality Composite Encoder Audio Demux Frame Sync optional AES Receivers D A 4 Channels Balanced Analog Audio Reclocked SDI Out S P Figure 1 1 7736CEM A4 Block Diagram Composite Outputs EDH Analysis Monitoring Quality Composite Encoder Mon Output SDI Input VBI Decoders and Freeze Black detector Genlock 75Ω Card Reference CPU Card ...

Страница 14: ...site Encoder Mon Output SDI Input VBI Decoders and Freeze Black detector Genlock 75Ω Card Reference CPU Card Edge Controls Indicators To From SNMP Network Composite Analog Reference OSD Display Audio content analysis and Delay optional High Quality Composite Encoder Audio Demux Frame Sync optional AES Receivers D A 4 Channels Balanced Analog Audio Reclocked SDI Out S P balanced Figure 1 3 7736CEM ...

Страница 15: ...panel Some cards have physical differences and some have functional differences and the associated labels will be misleading Figure 2 1 7736CEM Rear Panels 2 1 VIDEO IN AND OUT Connect a source of component serial digital 525 or 625 line video to the top BNC labeled SDI IN A re clocked version of the input video is available on the SDI OUT BNC Connect a reference black signal to the REF IN BNC if ...

Страница 16: ...Up Time on a Hot Switch TBD 3 2 ANALOG BROADCAST VIDEO OUTPUT Standard NTSC SMPTE 170M PAL ITU624 4 PAL M Number of Outputs 4 Connector BNC per IEC 169 8 Signal Level 1V nominal Output Impedance 75 Ohm DC Offset 0V 50mV Return Loss 45dB to 10MHz Frequency Response 0 1dB to 4 MHz response will depend on selected filtering Differential Phase 0 5 0 3 typical Differential Gain 0 5 0 3 typical SNR 75dB...

Страница 17: ...m 270Hz 3 4 ANALOG MONITORING VIDEO OUTPUT Standard NTSC SMPTE 170M PAL ITU624 4 PAL M Number of Outputs 1 Connector BNC per IEC 169 8 Signal Level 1V nominal Output Impedance 75 Ohm Return Loss 35dB to 10MHz 3 5 ANALOG AUDIO OUTPUTS A4 ONLY Number of Outputs 4 Type Balanced analog audio Connector Two 6 pin removable terminal strips Output Impedance 66Ω balanced Sampling Frequency 48kHz Signal Lev...

Страница 18: ...Minimum I O Delay 3 5msec 3 7 BALANCED AES AUDIO INPUTS A4 B ONLY Number of Inputs 2 Input Standard AES3 1992 balanced synchronous or asynchronous PCM AES Connectors One 6 pin removable terminal strip Impedance 110 Ohm Resolution Up to 24 bits Sampling Rate 32kHz to 48 kHz Input Level 2V to 7V p p Minimum I O Delay 3 5msec 3 8 ELECTRICAL Voltage 12VDC Power 9 25 Watts 7736CEM 16 75 Watts A4 or A4 ...

Страница 19: ...EDs NTSC on the top away from the PCB and PAL on the bottom closest to the PCB will indicate the video standard of the SDI video input If video is removed both LEDs will go off The NTSC LED will illuminate when PAL M video mode is selected and video is applied If the input standard is opposite to the user selected standard the LED will flash GENLOCKED This Green LED is on solid if the genlock sour...

Страница 20: ...losest to the center of the module Digital audio presence is determined by the AES receiver lock indicator when AES input is selected When embedded audio is selected the channel must be present on the selected group for the LED to illuminate Audio LED Colour Audio Channel Status 1 Off No channel 1 present Green Channel 1 present 2 Off No channel 2 present Green Channel 2 present 3 Off No channel 3...

Страница 21: ...m control sets the 100 program reference level 0 dB on the scale with respect to the Peak Output Level set by the analog level controls For example if the Peak Output Level is set to 24 dBu and the Headroom is set to 20 dB then the 0 dB reference on the bar graphs will correspond to an output level of 4 dBu This level will be achieved when a digital input signal of 20 dB FS is applied at the input...

Страница 22: ...our worst case acceptable quiet period 6 2 CALIBRATE AUDIO PHASE REVERSAL DETECTION 1 Supply the card with a stereo signal that has the phases reversed Make sure that the material is typical of normal content for this channel 2 Turn off all sources of errors in a Fault Condition and assign Phase Reversal as the only error Also make sure that you set the Fault Duration to a small number of frames s...

Страница 23: ...th long periods of similar left right content i e talking heads in a news cast may cause the mono detector to fire It is best to set the Mono Duration to a value larger than what you would expect 6 4 DEFINE THE FAULT CONDITION S 1 A Fault Condition is defined as a group of one or more problems grouped together that will create a fault when any one of the problems exist Decide what grouping of erro...

Страница 24: ...ove to the right hand side of the line indicating that you can now adjust the parameter Using the toggle switch adjust the parameter to its desired value If the parameter is a numerical value the number will increase if you lift the toggle switch and decrease if you push down on the toggle switch If the parameter contains a list of choices you can cycle through the list by pressing the toggle swit...

Страница 25: ...ers associated with analog audio inputs and audio multiplexing Video SID Controls for the operation of video processing Bar graphs Configuration of the audio level and phase bar graphs On screen display configuration Positioning controls and the on off state of all windows and bar graphs Configuration of the text window colours and opacity levels GPO configuration Configuration of the General Purp...

Страница 26: ...udio delay Audio buffer Monitor audio delay buffer state Ch1 processing Configures audio routing and processing for channel 1 Ch2 processing Configures audio routing and processing for channel 2 Ch3 processing Configures audio routing and processing for channel 3 Ch4 processing Configures audio routing and processing for channel 4 Ch 1 gain A4 Channel 1 output level control Ch 2 gain A4 Channel 2 ...

Страница 27: ...o frame synchronizer additional user requested delay may be added or removed with this control WARNING It takes approximately 1 minute 40 seconds to adjust the audio delay by one second This is required by the buffer management algorithm when changing the audio buffer size at a 1 rate without muting the audio This long buffer adjusting will happen on power up or when a new user supplied value is s...

Страница 28: ...he video except when the video frame synchronizer drops or repeats frames of video or the user supplies a different phase of input video Unfortunately at these boundary conditions we cannot simply drop or repeat sections of audio A rate conversion process is used to fill or empty the buffer to the needed level The process must be spread out over a period of time so that the action is not audible T...

Страница 29: ... channel output level is adjusted with this control It has a range of approximately 12 dB with 1 10 dB resolution The displayed value is the analog output level dBu corresponding to a 0dB FS digital input signal Ch1 gain 12 to 24 24 7 5 CONFIGURING THE VIDEO AND SOURCE ID CONTROLS The Video SID menus are used to configure parameters associated with the video processing functions and the VBI decode...

Страница 30: ...rizontal phase of the output signal to the NTSC Genlock reference input 625 H phase Sets the horizontal phase of the output signal to the PAL B Genlock reference input H Delay Status display that shows the current horizontal input to output delay 525 V phase Sets the vertical phase of the output signal to the NTSC Genlock reference input 625 V phase Sets the vertical phase of the output signal to ...

Страница 31: ... is used PAL M genlock is not supported Auto mode is not available for PAL M operation If a PAL M signal is applied it will be mistaken as NTSC Video standard NTSC 525 PAL B 625 Auto PAL M 525 7 5 2 Selects Input Video Lock Mode Video SID This control configures how the input video locks when upstream video is switched or disturbed Clean mode will freeze on any H or V mistiming while Fast mode wil...

Страница 32: ...so if the switch takes place in active video and not on line 10 but no earlier than line 6 there will be a frame of garbage video data 7 5 3 Selects the Action to Take when Input Video Is Missing Video SID The user can either have the output video go to black or freeze the last good video picture at the input with this control Loss of video Freeze Black 7 5 4 Genlock Source Selection Video SID Thi...

Страница 33: ...an set the horizontal fine phase timing of the output video with respect to the Genlock when operating in NTSC 525 or PAL M 525 video mode and locking to the reference input this control is not available when locking to the input video Increasing the value will delay the output video There is approximately 250 ns range on this control Warning For a set output horizontal phase there are a few fine ...

Страница 34: ...t results set the fine phase control to 0 set this control to get within 37ns of the desired position then adjust the fine phase control to get closer 625 H phase 0 to 1727 0 7 5 10 Monitoring the Horizontal Delay between the Input and Output Video Video SID This item displays the horizontal delay between the input and output video This value is useful to monitor while you are adjusting the H phas...

Страница 35: ... this control to 0 will make the output video have the same colour field relationship to the genlock PAL B C phase 0 to 3 0 7 5 16 Monitoring the Audio Buffer Tracking A4 Video SID This item displays the status of the audio tracking buffer It can be one of these states Emptying 1 Emptying 30 ppm locked Filling 30 ppm Filling 1 1 filling or emptying will have a slight pitch change that is near the ...

Страница 36: ...is set no time code or SID will be decoded 625 VITC line 6 to 32 10 7 5 19 Setting the PESA Source ID Line Number 525 Line Video Video SID With this control set the VBI line number that contains the PESA SID information when operating in NTSC video mode If the wrong line number is set no SID will be decoded 525 PESA line 10 to 21 11 7 5 20 Setting the PESA Source ID Line Number 625 Line Video Vide...

Страница 37: ...s item takes you into the VBI Processing Menu NTSC setup pedestal Selects whether the NTSC 7 5 IRE pedestal will be added to the composite analog output video Line 21 setup Controls line 21 processing Colour Bars Turn on internally generated colour bar test signal Composite display mode Selection of colour or B W modes Video level Controls the output video level Hue Controls the output video hue S...

Страница 38: ...s is the default state for properly generated captioning When set to On the 7 5 IRE pedestal will be generated on line 21 Use this state when there are no input captions Note The On condition will only take effect if the NTSC Setup Pedestal control is set to On Blank is used to remove captioning from line 21 If you need independent field 1 and field 2 on off control of setup set this control to Of...

Страница 39: ...ess and contrast controls will also affect video level Set this control by measuring sync level rather than video level After calibrating the brightness and contrast come back to this control and verify the video level Video Processing Video level 150 to 50 0 7 6 6 Setting the Hue Video SID This control allows the user to adjust the Hue of the analog video in steps of 0 175 degrees Video Processin...

Страница 40: ...Vertical Blanking Interval may be passed to the component outputs or may be blanked removed to not interfere with display of the image Video Processing VBI Blanking Blank Pass 7 6 12 Y Filter Selection Video SID The Y channel may be filtered with a standard composite filter or may be wideband When Wide bandwidth is selected the following control allows the frequency response to be adjusted Video P...

Страница 41: ...n implemented or un tested features 7 6 14 Chroma Filter Selection Video SID The Cb and Cr channels may be filtered with any of these bandwidths Note If you want to observe the filtering supply a component multiburst or H sweep test signal Video Processing Chroma Filter Selection 650kHz 1 0Mhz 1 3MHz 2 0MHz 3 0MHz ...

Страница 42: ...ve a 7 5IRE pedestal In NTSC the VBI lines may or may not have a 7 5 IRE pedestal depending on the signal present on that line This control allows you to apply setup on the line if needed This control when set to Setup Off will not create the 7 5 IRE pedestal on the selected line This is the default state Note There is a very inconsistent application removal of setup pedestals in the VBI in the in...

Страница 43: ...hs 3 and 4 Size Sets bar graph size Background opacity Sets the background opacity or how much video picture content will be visible through the bar graph backgrounds Bars opacity Sets the background opacity or how much video picture content will be visible through the bar graph bars When many windows are turned on the on screen information can get very crowded The bar graphs and text windows are ...

Страница 44: ...s 1 and 2 Headroom 0 to 30db 0db 7 8 3 Setting the Bar Graph Type Bar graphs This control sets the bar graph to one of five basic types The ballistics and display characteristics of the bar graphs are configured with other items in this section of the menu structure Bar graphs 1 and 2 Bar type PPM PPM peak VU VU peak VU PPM PPM Peak Program Meter tracks the peaks of the audio content rather than t...

Страница 45: ... 1 dB per div until 10 dB logarithmic to bottom 50dB Associated DIN phase correlation scale both the same 1 r only 1 signal 0 r both out of phase 1r BBC IEC 128 10 type IIa fast mode 10 ms 2 8 sec for 7 to 1 8 dBu 1 12 dB 7 12 dB 8 headroom 6 on the scale is the reference level Nordic N9 5 ms 1 7 sec for 20 dB 6 dBu 42 dB 12 dB 6 headroom AES EBU 1 sample period 1 5 sec for 20 dB User defined 60 d...

Страница 46: ...he error region It is intended to indicate when the audio level is approaching the error region This control sets the bottom of the warning region Normally it is set to the audio program level The upper boundary of this region is always set with the error region control This value cannot be higher than the error region value If the error region is lowered below the value of this parameter the warn...

Страница 47: ...ose your own custom colours for each of the regions The controls for each region operate the same way so for simplicity only the controls for the OK region will be shown in the manual Tip The colours of the various regions are defined by three 8 bit R G B values very similar to the values used in most paint programs like Microsoft Paint When you choose one of the predefined colours the card automa...

Страница 48: ...picture content will be visible through the bar graph backgrounds When set to the minimum value very little of the bar graph background colour will be visible over the video content At the maximum value very little of the background video will be visible through the bar graph Background opacity 0 to 64 32 7 8 15 Setting the Transparency Opacity of the Bar Graph Bars Bar graphs This control sets th...

Страница 49: ...indows what is displayed in them and various aspects of their purpose 7 9 1 1 Video Audio Status The purpose of the Video Audio status screen is to show as much status information about the video and audio as possible in a small concise table Table 7 2 shows each item that may appear in the status screen The Status window may be operated on one of two modes In normal mode all lines are controlled ...

Страница 50: ... mono out of phase Status information about channels 1 and 2 are shown here Ch 3 and 4 Not present silent over mono out of phase Status information about channels 3 and 4 are shown here Table 7 2 Video Audio Status Screen Items 7 9 1 2 Audio Bar Graphs Audio level peak and or average and phase information can be displayed in a number of different forms See section 7 8 for information on configurin...

Страница 51: ...SID information When there is neither VITC SID or PESA SID encoded on the input video the Default SID message will be displayed if Default SID mode is enabled otherwise the SID window will be turned off See sections 7 5 21 and 7 5 22 for information about setting the Default SID message Use the VITC line select items on the Video menu to configure the lines that the CEM will use for reading VITC S...

Страница 52: ...le menu item is used to program the on off states of the text and bar graph windows To display the Fault windows use the Fault condition menu item on the Fault definitions menu See section 7 11 1 4 When you select the Window enable menu item you are presented with a list of the possible on off states as shown in Table 7 3 Select the desired function using the toggle switch When the pushbutton is p...

Страница 53: ...ow Background Opacity On screen display configuration This control sets the Text window background opacity or how much video picture content will be visible through the window background When set to the minimum value very little of the window background colour will be visible over the video content At the maximum value very little of the background video will be visible through the window backgrou...

Страница 54: ...e font size will be double the height and width of the Normal font size Text windows Text window config SID window size Normal Big 7 9 4 8 Setting the Status Window Mode On screen display configuration This control determines the display properties of the status window When it is set to Normal the status window will use the text window properties When it is set to Fault items in the status window ...

Страница 55: ...ion Select the desired background colour around the text in the fault windows Text windows Fault window config Background colour Black Grey Yellow Red Green 7 9 5 3 Setting the Fault Window Background Opacity On screen display configuration This control sets the Fault window background opacity or how much video picture content will be visible through the window background When set to the minimum v...

Страница 56: ...w config Fault 1 blink Disable Enable 7 10 GPO CONFIGURATION The 7700 frame has a fault monitoring LED and general purpose output The user has the ability to configure which faults the module will assert onto the frame status system The GPO configuration menu contains the controls used to configure the GPO Section 7 10 1 gives detailed information about the menu item Frame stat trigger Controls wh...

Страница 57: ...ed to keep the most important information from being covered by other not so important windows The Fault windows have the highest priority The priority of the other windows is shown in section 7 9 The Fault definition menu items are used to configure the fault settings and the presentation of the fault conditions The chart below shows the items available in the Fault definition menu Sections 7 11 ...

Страница 58: ...Sets the level of audio under which is considered silence Silence duration Sets the duration of audio in seconds under the above level which is considered a fault Phase reversal level Sets the level of L R audio difference over which is considered phase reversal Phase reversal duration Sets the duration of audio in seconds over the above phase reversal level which is considered a fault Mono thresh...

Страница 59: ...m on the On screen display configuration menu Fault condition 1 Window position 7 11 1 3 Setting the Message Associated with a Fault Fault definitions This control sets the message to display when the fault condition is active The text of the message can be changed See section 7 2 for information on changing text fields Fault condition 1 Fault 1 message Video error 7 11 1 4 Determining If the Faul...

Страница 60: ... level Audio silence Audio 1 and 2 silent Audio silence Audio 3 and 4 silent Audio mono Audio 1 and 2 mono Audio mono Audio 3 and 4 mono Loss of VITC VITC absent Loss of SID SID absent Loss of program rating Program rating absent Loss of CC Primary CC1 Closed captioning absent Picture Freeze No activity above preset noise level in active picture Picture Black No active picture above 7 IRE Table 7 ...

Страница 61: ...vel Faults The Over level and Over duration controls are used to detect when an audio amplitude is close to a dangerous level i e clipping a downstream device or saturating the digital word length The Over level control sets the audio level over which there is considered to be a fault The audio must be over this level for the duration set by the Over duration control before the fault condition exi...

Страница 62: ...ng amount of phase difference between the two channels If there is significant phase reversal for a period of time then this is a sign that the audio signals may be out of phase The Phase reversal level and Phase reversal duration controls are used to detect when the left and right audio channels are considered to be out of phase The Phase reversal level control sets the amount of phase difference...

Страница 63: ...lways has no out of phase information or just a small amount for a period of time then the signal may be mono The Mono threshold level and Mono duration controls are used to detect when two audio channels are considered to be mono The Mono threshold level control sets the threshold that decides whether the signals are the same The audio difference must be less than the Mono threshold level amount ...

Страница 64: ...nd Picture freeze duration controls are used to detect when a video picture is considered to be frozen The Picture noise level control sets the threshold that decides whether activity in the picture is considered to be noise The picture activity must be greater than this amount for the duration set by the Picture freeze duration control before the fault condition exists 7 11 11 1 Setting the Pictu...

Страница 65: ... noise level should be optimized by initiating the freeze frame mode in the upstream equipment and adjusting Picture noise level as low as possible without losing the freeze alarm generated by the card The user should note that because of the random nature of noise the freeze alarm may be intermittent at some Picture noise level settings The optimal Picture noise level setting is obtained when the...

Страница 66: ...nd recall these configurations For simplicity the following sections of the manual show how to store and recall from Preset 1 only 7 12 2 1 Storing Configurations to the User Presets Utilities This control is used to initiate a store of the current card configuration into one of the user presets After selecting the store preset operation you must change the command to Store and press the pushbutto...

Страница 67: ...n by pressing the pushbutton when Cancel is displayed After the upgrade has finished the unit will automatically restart and run in normal operating mode Upgrade Yes Cancel 7 12 4 Restoring the CEM to its Factory Default Configuration Utilities This menu item is used to restore all controls back to their factory defaults After selecting the reset operation you must change the command to Yes and pr...

Страница 68: ...back that the configuration has been carried out There are 3 components of SNMP 1 An SNMP manager also known as a Network Management System NMS is a computer running special software that communicates with the devices in the network Evertz VistaLINK Pro Manager graphical user interface GUI third party or custom manager software may be used to monitor and control Evertz VistaLINK enabled fiber opti...

Страница 69: ... delay may be added or removed with this control WARNING It takes approximately 1 minute 40 seconds to adjust the audio delay by one second This is required by the buffer management algorithm when changing the audio buffer size at a 1 rate without muting the audio This long buffer adjusting will happen on power up or when a new user supplied value is set with this control However the audio is stil...

Страница 70: ...not simply drop or repeat sections of audio A rate conversion process is used to fill or empty the buffer to the needed level The process must be spread out over a period of time so that the action is not audible This indicator is mainly used at the Evertz factory and may also be useful to monitor to help in debugging system issues 8 3 AUDIO BAR GRAPH Figure 8 2 Audio Bar Graph Tab 8 3 1 Bar Graph...

Страница 71: ...m Difference bar graph 1 is the absolute value of the sum of both channels and bar graph 2 displays the absolute value of the magnitude of the difference of the two signals 8 3 4 2 Headroom The Headroom is the level difference between a maximum amplitude signal that can be represented in the digital world this is called 0 dB FS or 0 dB Full Scale to a nominal user defined operating level represent...

Страница 72: ...dard of Peak Program Meter PPM display modes When one of these modes is selected a number of items are set to adhere with predefined industry standards The items affected include meter attack time meter decay time min level displayed max level displayed analog reference 100 level and in some instances region colouring and phase graph representation Table 8 1 illustrates the values set by the stand...

Страница 73: ...f a combination VU PPM mode is selected then left will select VU scale on the left PPM scale on the right and right will select VU scale on the right and PPM scale on the left 8 3 4 7 Coloured Regions Each of the level bar graphs consists of three regions the OK warning and error regions The Coloured Regions parameters allow you to select one of a group of standard colours or choose your own custo...

Страница 74: ...raph Error Region The bar graph Error region is the area from clipping 0 dB FS down to the level selected by this parameter It is intended to tell the user when the audio signal is getting close to clipping Warning Some bar graph types and ballistics have this region defined When you select one of these types this value will automatically be set After you choose the type you can adjust this value ...

Страница 75: ...lowered Warning Some bar graph types and ballistics have this region defined When you select one of these types this value will automatically be set After you choose the type you can adjust this value to your desired level 8 3 5 Phase Type This parameter enables the user to select a phase type There are two types of phase bar graphs available one that has a focus of presenting the amount and L R d...

Страница 76: ...he user to configure the on off states of the level bar graph windows 8 4 2 Setting the Horizontal Position of On Screen Windows The Horizontal parameter sets the leftmost character position for the respective window 8 4 3 Setting the Vertical Position of On Screen Windows The Vertical parameter sets the top row for the respective window 8 5 FAULT SETTINGS Figure 8 7 Fault Settings Tab ...

Страница 77: ...ipping If set to 0 dB FS then if 3 or more consecutive samples set with the duration control are at digital saturation max or min then the digital word length has been exceeded 8 5 4 Audio Over Duration This parameter sets the duration in number of consecutive samples that are at or above the Over level before a fault condition exists Note that as longer durations are configured you are eliminatin...

Страница 78: ... is considered a fault 8 5 11 Loss of Closed Captioning Duration This parameter sets the amount of time in seconds with no primary CC1 captions encoded which is considered a fault This fault condition will also be generated if the closed caption signal is missing on the input video 8 5 12 Loss of Program Rating Duration This parameter sets the amount of time in seconds with no program rating packe...

Страница 79: ...channel manipulation is possible with this parameter Options include CH 1 CH 2 CH 3 CH 4 CH 1 CH 2 2 CH 3 CH 4 2 and Mute Any input channel can be routed to any output channel A mono mix of either L R input pair can also be performed Muting an output is also possible 8 6 2 Analog Output Level The analog output level is adjusted with this parameter It has a range of approximately 12 dB with 1 10 dB...

Страница 80: ...condition is active When enabled the fault message will be displayed until the condition is reset When disabled it will never be displayed 8 7 2 Message This parameter sets the message to display when the fault condition is active The text of the message can be changed 8 7 3 Duration This parameter sets how long the fault condition will be held The fault display will be displayed as long as the fa...

Страница 81: ...g standard Genlock Invalid Reference absent or wrong standard Phase Reversal 1 and 2 Audio 1 and 2 out of phase Phase Reversal 3 and 4 Audio 3 and 4 out of phase Audio Over 1 and 2 Audio 1 or 2 over level Audio Over 3 and 4 Audio 3 or 4 over level Audio Silence 1 and 2 Audio 1 and 2 silent Audio Silence 3 and 4 Audio 3 and 4 silent Audio Mono 1 and 2 Audio 1 and 2 mono Audio Mono 3 and 4 Audio 3 a...

Страница 82: ...he standard that is being applied as the genlock source the OSD will not be readable to change the standard You must remove the genlock signal change the standard then re apply the genlock In Auto mode the Genlock reference video standard is used to determine what standard to use If Genlock video is not present the input video standard is used PAL M genlock is not supported Auto mode is not availa...

Страница 83: ...the signal usually plant reference black that you are trying to frequency match Adjust this control until the vectors spin slowly Turn genlocking back on or apply reference video 8 8 5 Fine Phase 525 With this parameter you can set the horizontal fine phase timing of the output video with respect to the Genlock when operating in NTSC 525 or PAL M 525 video mode and locking to the reference input t...

Страница 84: ... colour field relationship to the genlock 8 8 9 Video Lock Mode This parameter configures how the input video locks when upstream video is switched or disturbed Clean Asynchronous mode will freeze on any H or V mistiming while Fast Synchronous mode will assume an upstream synchronous switch and not freeze until the video has been missing for a number of lines 8 8 10 VITC 525 This parameter sets th...

Страница 85: ...he Default SID message will be displayed in the SID window when there is no incoming source ID on the VITC Set to Disable to blank the SID window when there is no incoming source ID Set to Enable to show the Default SID message in the SID window when there is no incoming source ID The SID window must also be turned On to display the default SID message 8 8 15 Default SID Message This parameter set...

Страница 86: ...tent will be visible through the window background When set to the minimum value very little of the window background colour will be visible over the video content At the maximum value very little of the background video will be visible through the window background 8 9 5 Setting the Horizontal Position of the Fault Windows For brevity in the manual only Fault Window 1 will be discussed The Horizo...

Страница 87: ...able the fault window will blink when it is active 8 10 FAULT TRAPS The Fault Traps tab as illustrated in Figure 8 12 allows the user to enable or disable traps and view trap status To enable a particular trap simply click the box located beside each trap so that a check mark appears When a check mark is present the trap is enabled When a check mark is not present the trap is disabled The Trap Sta...

Страница 88: ...11 2 Line 21 Setup Pedestal Closed captioning has been defined to NOT have a 7 5 IRE pedestal but it is placed on the first active line of video where there may be a pedestal The upstream closed captioning encoder should not have generated a setup pedestal When encoding composite video with properly keyed captioning a pedestal must not be generated This parameter when set to Off will not create th...

Страница 89: ... sync level rather than video level After calibrating the brightness and contrast come back to this control and verify the video level 8 11 5 Hue This parameter allows the user to adjust the Hue of the analog video in steps of 0 5 degrees 8 11 6 Saturation This parameter allows the user to adjust the saturation level of the analog video 8 11 7 Contrast This parameter allows the user to adjust the ...

Страница 90: ...er is set to Wide Bandwidth this controls a set of high frequency response curves Note If you want to observe the filtering supply a component multiburst or H sweep test signal 8 11 13 Chroma Filter Selection The Cb and Cr channels may be filtered with any of these bandwidths Note If you want to observe the filtering supply a component multiburst or H sweep test signal 8 12 WINDOW SETTINGS Figure ...

Страница 91: ...is control sets the text window background opacity or how much video picture content will be visible through the window background When set to the minimum value very little of the window background colour will be visible over the video content At the maximum value very little of the background video will be visible through the window background 8 12 5 Status Window 8 12 5 1 Setting the Horizontal ...

Страница 92: ...ring then only the faults that actually enabled the window will be shown in the Fault window properties The rest of the items on the status window will be shown in the Text window properties 8 12 6 VITC Window For brevity in the manual only the VITC Window parameters will be discussed 8 12 6 1 Setting the Horizontal Position of the VITC Window The Horizontal parameter sets the leftmost character p...

Страница 93: ...ause the line to go active Also included on the frame status signal is card power supply monitoring This is derived with hardware and cannot be disabled from the status signal If it is desired to use this feature the frame status jumper J3 located near the card extractor must also be set to the On position See section 9 2 The Red Local Fault LED will be On when the global status line is active reg...

Страница 94: ...tat trigger menu item on the GPO configuration menu is used to configure whether Fault condition 1 or Fault condition 2 will assert the frame status fault line Power supply faults will always assert the frame status fault line when J3 is installed in the ON position 9 3 CONFIGURING THE MODULE FOR FIRMWARE UPGRADES The following method can be used to upgrade the firmware in the CEM card You can als...

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