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Difference between revisions of "ENA Amplifier - Monitoring"

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* '''Speaker Line (SLM) faults'''. The ENA amplifier can monitor impedance changes on each channel. This is used to detect fault such as load change, open/short and ground faults. A loud change must be minimum 15% before it is reported as an error. The SLM can be individually turned on or off for each channel in [[ENA_Configuration_-_AlphaCom_mode#Line_Control|Monitoring and Lines > Line Control > Channel 1/2 > Line Monitoring]]. In order to make the Line Monitoring work the speaker line needs to be calibrated. This is done from the GUI or the web interface of the ENA amplifier. The option ''Suspend Monitoring'' will turn off monitoring when there is audio on the channel output.  
 
* '''Speaker Line (SLM) faults'''. The ENA amplifier can monitor impedance changes on each channel. This is used to detect fault such as load change, open/short and ground faults. A loud change must be minimum 15% before it is reported as an error. The SLM can be individually turned on or off for each channel in [[ENA_Configuration_-_AlphaCom_mode#Line_Control|Monitoring and Lines > Line Control > Channel 1/2 > Line Monitoring]]. In order to make the Line Monitoring work the speaker line needs to be calibrated. This is done from the GUI or the web interface of the ENA amplifier. The option ''Suspend Monitoring'' will turn off monitoring when there is audio on the channel output.  
 
* '''LET ([[ELTSI-1|Line End Transponder]])'''. LET units can be connected on the loudspeaker line to ensure reliable monitoring of the line. There can be multiple LET units on one speaker line. The LET Monitoring can be individually turned on or off for each channel in [[ENA_Configuration_-_AlphaCom_mode#Line_Control|Monitoring and Lines > Line Control > Channel 1/2 > LET Monitoring]]. Here you also specify the quantity of LET units on the line.
 
* '''LET ([[ELTSI-1|Line End Transponder]])'''. LET units can be connected on the loudspeaker line to ensure reliable monitoring of the line. There can be multiple LET units on one speaker line. The LET Monitoring can be individually turned on or off for each channel in [[ENA_Configuration_-_AlphaCom_mode#Line_Control|Monitoring and Lines > Line Control > Channel 1/2 > LET Monitoring]]. Here you also specify the quantity of LET units on the line.
* '''Remote Control Input (RCI)'''. In order to monitor RCIs one have to connect two resistors as close as possible to the external switch/relay. The resistor connected in series should have a value of '''1 kΩ''', while the resistor connected in parallel should be '''2.2 kΩ'''. The monitoring must be enabled per input in [[ENA_Configuration_-_AlphaCom_mode#RCO.2FRCI_Config|Monitoring and Lines > RCO/RCI Config, RCIs]] section
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* '''Remote Control Input (RCI)'''. In order to monitor RCIs one have to [[ENA_Amplifier_-_Mounting_and_Installation#Control_Inputs|connect two resistors]] as close as possible to the external switch/relay. The monitoring must be enabled per input in [[ENA_Configuration_-_AlphaCom_mode#RCO.2FRCI_Config|Monitoring and Lines > RCO/RCI Config, RCIs]] section
 
* '''Remote Control Output (RCO)'''. The 24VDC control outputs can be monitored for short circuit and overload. Parameters might be adjusted in [[ENA_Configuration_-_AlphaCom_mode#RCO.2FRCI_Config|Monitoring and Lines > RCO/RCI Config, RCOs]] section
 
* '''Remote Control Output (RCO)'''. The 24VDC control outputs can be monitored for short circuit and overload. Parameters might be adjusted in [[ENA_Configuration_-_AlphaCom_mode#RCO.2FRCI_Config|Monitoring and Lines > RCO/RCI Config, RCOs]] section
 
* '''Headphone'''. Monitors that the [[ENA Amplifier_-_Mounting_and_Installation#Overview_-_Front|headphone is connected]] at the front panel of the amplifier. Monitoring must be enabled  in [[ENA_Configuration_-_AlphaCom_mode#Advanced_Config|Monitoring and Lines > Advanced Config, Headphone]] section
 
* '''Headphone'''. Monitors that the [[ENA Amplifier_-_Mounting_and_Installation#Overview_-_Front|headphone is connected]] at the front panel of the amplifier. Monitoring must be enabled  in [[ENA_Configuration_-_AlphaCom_mode#Advanced_Config|Monitoring and Lines > Advanced Config, Headphone]] section

Revision as of 00:13, 10 April 2018

AlphaCom icon 300px.png

The ENA Amplifier provides extensive monitoring capabilities.


What can be supervised?


Error reporting

  • Fault Relay: The Fault Relay on the back of the amplifier will trigger whenever there is an error. The relay will remain triggered as long as one or more errors are present.
  • Amplifier GUI display: The Amplifier GUI display will indicate with a red exclamation mark if there are any errors. Use the Menu Selecetion Knob in front of the amplifier to navigate to Service > Local Message List to view current error messages
  • Amplifier web interface: In the Faults section in the Monitoring and Lines > Status menu there is a live update of current active faults. The page is automatically refreshed every 10 seconds.
  • AlphaCom System Log: Amplifier errors are reported to the AlphaCom, which will forward the error reports via the System Log. Log data can be stored in a local log file on the AMC-IP board, or sent to external log recipient via SysLog, E-Mail or SNMP trap.
  • AlphaCom Event Handler: Amplifier errors are reported by the Event Handler of the AlphaCom, event 43 - Station Fault Report. One can use the "subevent" to filter on specific fault types.
  • SNMP Traps - from Amplifier: The amplifier can be configured to report errors as SNMP Traps, see SNMP Settings