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GUIDE TO INSTALLATION AND OPERATION 
 

30

  |  HCO-3901 

  Reclocked outputs. 

7.  If there are no errors on input 1 but a reference mismatch is detected on input 2, the CSO keeps working.  

 
The Options panel gives some information about obtaining 
the Clean Switch option, and provides a data entry box 
“Enter Key” where the activation key supplied when the 
option is purchased can be entered. 
 

 

Enter the Key in the data box, and click the 

Enable 

Option

 button to activate the Clean Switch feature.  

 
 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ALC – 

This option enables the Automatic Loudness Control feature of the HCO-3901. 

 
Note that this option is available for 2, 6, 8 or 16 channels. 
A separate license key is required for each of these, and the 
data window below the 

Enter key

 data box will indicate 

which is currently enabled, e.g.: 
 

HCO-3901-OPT-ALC-8

 for the 8 channel option 

 
If the currently-enabled option is 2, 6, or 8 channels, the 

Enter key

 data box will be available to upgrade to a greater 

number of channels. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Figure 3.34 Options panel – ALC option 

Figure 3.33   Options Panel – Clean Switch Option 

Summary of Contents for Grass Valley HCO-3901

Page 1: ...GUIDE TO INSTALLATION AND OPERATION HCO 3901 HCO 3901 3G HD SD ASI Change Over with optional Clean Switch and ALC Guide to Installation and Operation M981 9900 125 2017 08 07...

Page 2: ...ons Grass Valley hereby grants permission and license to owners of HCO 3901 to use their product manuals for their own internal business use Manuals for Grass Valley products may not be reproduced or...

Page 3: ...interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at hi...

Page 4: ...ol using iControl 10 3 4 1 The iControl graphic interface window 10 3 4 2 The Switch panel 11 3 4 3 The Alarms panel 14 3 4 4 The Timing panel 19 3 4 5 The Operation Mode panel 21 3 4 6 The Reference...

Page 5: ...r panel in use The preview outputs are user selectable to follow the main program output video inputs IN 1 IN 2 or IN 3 The HCO 3901 generates audio video fingerprints for input 1 and input 2 In combi...

Page 6: ...on board automatic loudness control by Grass Valley not available with ASI signals Reference input with passive loop through 3DRP rear only Two line timing window with CS option not available with ASI...

Page 7: ...rd edge of the HCO 3901 incorporates two elements Status LED see section 3 2 Select Button see section 3 3 An additional connector is present intended for future use Figure 1 2 Functional block diagra...

Page 8: ...flash red Move the card to other slot for correct operation No damage will result to the card should this occur See the manual for your Densit frame for detailed instructions on installing cards and...

Page 9: ...where the third input multiple preview outputs and GPI interface are not required saving a frame slot for another card The rear panel connections are as follows 3G HD SD IN serial digital 3G HD SD in...

Page 10: ...age is less than approximately 4V an alarm will be raised 2 GPI IN 1 and GPI IN 2 should NOT be activated at the same time DAMAGE TO THE RELAY MAY RESULT 3 GPI inputs trigger on a momentary pulse To b...

Page 11: ...PI OUT 1 GPI OUT 2 and GPI OUT 3 pins to identify which output is selected 0 indicates selection Read the AUTO OUT and BYPASS OUT pins to determine whether either of these modes is in operation 0 indi...

Page 12: ...n the HCO 3901 affect the LED status If a cell is gray the error condition cannot cause the LED to assume that status If more than one LED status is possible for a particular error condition the statu...

Page 13: ...he and buttons a second push confirms the new value ESC Cancels the effect of parameter value changes that have not been confirmed pushing ESC causes the parameter to revert to its former value Pushin...

Page 14: ...e HCO 3901 is shown in figure 3 2 The window identification line gives the card type HCO 3901 and the slot number where the card installed in its Densit frame There are four main sections in the windo...

Page 15: ...l heading matched the button name 3 At the bottom are the controls for the User presets 4 This section contains the main operating controls and displays for managing the HCO 3901 s feature set The con...

Page 16: ...th the Take button shows how long the Take button will remain active before it times out Click the Take button while it is active to switch the HCO 3901 output over to the other source 2 Auto switch A...

Page 17: ...erval counted from the time the original input returns to a valid state Use the slider at the bottom of the tab to set the interval 0 to 59 seconds 1 to 10 minutes o Toggle switches to the other input...

Page 18: ...nvolves only inputs 1 and 2 input 3 is not considered in the alarm process and does not appear in this panel In general A number of parameter values are continuously tested against user defined thresh...

Page 19: ...for both inputs Click on one to select it and the control panel for adjusting that parameter appears at the bottom of the screen Video Video Error alarm This error is always ENABLED and the level set...

Page 20: ...his error can be Enabled using the checkbox and the level set to 1 2 or OFF Use the LED Color pulldown to choose the color that will be displayed by the status LED on the card edge when a Format Misma...

Page 21: ...Red Note that if a Video Error is detected on the backup input i e input 2 a switch over to that input will be inhibited until the Input 2 Set Duration has expired and then will only succeed if input...

Page 22: ...audio in the named group This error can be Enabled using the checkbox and the level set to 1 2 or OFF The user sets the detection parameter for this error using the slider Duration sec sets the time i...

Page 23: ...pulldown will appear offering the choice of Green Yellow Red or Flashing Red The current status is shown by the colored icon in the right hand column In1 In2 Click the checkbox to force all alarm par...

Page 24: ...the supported input range is 2 lines 12 3 s SD and 2 lines 4 5 s HD Reference Supported input range Output timing 1H 1H 1H 12 3us SD 1H 4 5us HD Reference Supported input range Output timing H H 12 3...

Page 25: ...ource detected in this order of priority o Reference input o URS o Selected Input signal External selects the signal connected to the rear panel REF IN connector URS Universal Reference Signal selects...

Page 26: ...re disabled when clean switch is disabled and the ALC option is not enabled In this case the HCO 3901 acts as an intelligent 2x1 router 3 4 8 The ALC panel Minimizing loudness differences between segm...

Page 27: ...urns ON the ALC input and output loudness monitoring for all programs 3 4 8 2 PGM1 8 tabs Loudness monitoring When turned ON the loudness meters display the program input loudness before ALC processin...

Page 28: ...t Light Standard Heavy that is closest to the desired objective then fine tuning it to reach the desired goal This will minimize the troubles that will likely be encountered as many adjustments intera...

Page 29: ...LC will stop to increase loudness This avoids quiet portions of programs and noise to be boosted unintentionally If the input program loudness is under the Gate Threshold for more than 30 seconds the...

Page 30: ...ws the user to create a custom window in response to particular or unusual image content The custom window can be placed anywhere within the picture Type the value into the data box and Enter or use t...

Page 31: ...ble in inputs 1 and 2 there is no need to select one from input 1 and one from input 2 A maximum of four AES can be selected at any time You must deselect one of the inputs before you can select anoth...

Page 32: ...running count of the number of overloads detected The Overload level is shown by a marker beside the meter and its position can be set under the Meter Ballistics Config tab The Phasemeter located at t...

Page 33: ...format 2 An external reference or URS is required to run the CSO In this mode the reference presence is always reported regardless of the user s setting 3 The CSO allows us to do a clean video switch...

Page 34: ...the Enable Option button to activate the Clean Switch feature ALC This option enables the Automatic Loudness Control feature of the HCO 3901 Note that this option is available for 2 6 8 or 16 channels...

Page 35: ...1 31 3 4 13 The Factory panel The HCO 3901 maintains a Factory Default alignment in its memory to which it can be restored at any time Click the Load Factory button to restore the card to its Factory...

Page 36: ...ilable levels then click on one to select it Overall Alarm This column allows configuration of the contribution of each individual alarm to the Overall Alarm associated with this card The Overall Alar...

Page 37: ...other controls Copy to other cards Click this button to open a panel that allows the alarm configuration set for this card to be copied into another HCO 3901 card Select one or more destination cards...

Page 38: ...the type of rear panel that is installed Label type the label identifies this HCO 3901 when it appears in iControl applications Short Label type the short form label that iControl uses in some cases 8...

Page 39: ...ck Remove and then Yes to delete it from the window 3 4 16 User Presets The User Preset controls allow the user to save and recover all configuration settings on the card Select any one of the five pr...

Page 40: ...to open the Profile Copy window Copy Profile From This line shows this HCO 3901 card and identifies it by App server Densit frame and slot number card type and firmware version The Profile column has...

Page 41: ...g against a yellow background When the reconfiguration is complete the Transfer Status box on the right of the Copy profile from line will indicate Succeeded against a green background Note There is n...

Page 42: ...n 8281 at 270 Mbps 70m Belden 1694A at 1 485 Gbps 60m Belden 1694A at 2 970 Gbps RETURN LOSS 10 dB up to 1 5 GHz IN1 IN2 2 8 dB up to 3 GHz IN1 IN2 2 15 dB up to 1 5 GHz IN3 10 dB up to 3 GHz IN3 1 To...

Page 43: ...to ground GPI OUT 5 Open collector External pull up voltage 3 3 V to 24 V Maximum current 15 mA External GPI power 5V DC nominal 1 5 W Video Processing Performance SIGNAL PATH 10 bits LATENCY 0 4 ns...

Page 44: ...r 1 530 478 4148 To obtain a local phone number for the support center nearest you please consult the Contact Us section of Grass Valley s website www grassvalley com An online form for e mail contact...

Page 45: ...TCH BLACK ERROR FREEZE ERROR SILENCE CHANNEL 1 to 16 AUDIO GROUP PRESENCE 1 t0 4 USER 1 USER 5 USER 1 USER 5 AUTO MANUAL BYPASS IN1 IN2 IN3 N A AUTO EXT URS INPUT OFF 29 97 HZ 25 HZ 3G HD SD ASI HCO 3...

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