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Difference between revisions of "ENA Configuration - AlphaCom mode"

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Revision as of 14:42, 4 January 2019

AlphaCom icon 300px.png
AlphaCom with ENA Amplifiers

This article describes the configuration required for a Exigo Network Amplifier (ENA) to operate with an AlphaCom server. The ENA Amplifiers are configured through their web interface. The AlphaCom server is configured using the PC tool AlphaPro.

Software and License requirements

Minimum Software requirement

  • ENA Amplifier: 4.9.2.2
  • AlphaCom: 12.5.2.0
  • AlphaPro: 11.7.2.0

License requirement

To install the license, log on to the web interface of the AlphaCom server, and select System Configuration > Licensing.


Directory Numbers

The ENA Amplifier supports 3 registrations on 3 separate directory numbers:

  • First registration: CH1 audio output, RCO, RCI control and fault status monitoring
  • Second registration: CH2 audio output
  • Third registration: Mic In or Line in audio input


The amplifier web interface

Station Main tab

Station Information

  • Log In to the amplifier
  • The Station Information page will now be displayed, showing the amplifier configuration and status.
The Station Information page


Note icon To find the IP address of the amplifier, use the Menu Selection Knob on the front of the amplifier, and navigate to Information > Network.



Main Settings

  • Click Station Main > Main Settings to access the page for configuring Station Mode and IP parameters.
ENA MainSettings.PNG


Station Mode: Select the Use Alphacom radio-button.

Registration Settings:

  • AlphaCom IP-address: Enter the IP address of the AlphaCom server to which the amplifier is to be registered

The amplifier can be assigned up to three separate directory numbers: Loudspeaker Channel 1, Loudspeaker Channel 2 and Audio Input. The directory number(s) must also be defined in the AlphaCom server.

  • CH1 Out Directory Number: The first registered channel. This channel only supports audio output to CH1 amplifier.
  • CH2 Out Directory Number: The second registered channel. This channel will output audio to CH2 amplifier.
    • Disabled option will disable this channel registration
    • Mirror CH1 audio will play CH1 audio stream on CH2, and CH2 will not require directory number and will not use any license
    • When channel is mirrored, channel monitoring and volume controls (in web and GUI) are still separate
  • Audio In Directory Number: The third registered channel. This channel is used to send mic or line in audio to the AlphaCom
    • Disabled option will disable this channel registration

IP Settings:

  • DHCP – Select this option if the IP station shall receive IP Settings from a DHCP server.
  • Static IP – Select this option if the IP station shall use a static IP address. Enter values for:
- IP-address
- Subnet-mask
- Gateway
- DNS Server 1 (option for network administration)
- DNS Server 2 (option for network administration)
- Hostname (option for network administration)
  • Disable Reset to Factory default settings using frontboard and I/O: If enabled, factory reset will only be possible from the web interface. This is disabled by default.
  • Read IP Address: Not in use
  • Enable RSTP: RSTP is only required when using redundant networking

Click Save followed by Apply to apply the new configuration settings.

Station Administration tab

Reboot

Station Administration > Reboot menu


  • Reboot system: Perform a full Linux reboot. No configuration is lost
  • Reboot main application: Perform a restart of the intercom application. No configuration is lost
  • Factory reset: Set all parameters to Factory Default values. The amplifier will get static IP Address 169.254.1.100.
  • Factory reset with DHCP: Set all parameters to Factory Default values. The amplifier will get IP Address from DHCP server. If no DHCP server in the network, it will get a random 169.254.x.x IP address.
  • Clear local ZAP profile: For special purpose
  • Delete ZAP data.lua: For special purpose

Logging

From the web interface of the amplifier it is possible to activate logging, which can be useful for debugging and troubleshooting purposes. See Logging - IP Stations for more information.

Change Password

  • Web access: The password for web access can be changed.
  • GUI (display menu) access: (Not available in the ENA2100-AC amplifier). By default the display menu of the amplifier can be accessed without any pin code. However, it is possible to enable that pin code is required. Two levels can be defined; Read and Full Access.

For more details, see Password (ENA Amplifiers).

Backup and Restore

From the web interface of the amplifier it is possible to backup and restore the configuration data. See Backup and Restore for more information.

Manual Upgrade

The software of the amplifier can be upgraded via the web interface. see Turbine_Software_Upgrade for details.

Advanced AlphaCom tab

Audio

In Advanced Alphacom > Audio Dynamic Range Compression can be enabled.

Typical music signals are characterized by crest factors, the ratio of peak signal power to average signal power, of 12dB or more. To avoid audible distortion due to clipping of peak signals, the gain of the DAC channel must be adjusted to prevent hard clipping of peak signals. As a result, during nominal periods, the applied gain is low, causing the perception that the signal is not loud enough. To overcome this problem, the DRC continuously monitors the output of the DAC Digital Volume control to detect its power level with regard to 0dBFS. When the power level is low, it increases the input signal gain to make it sound louder. At the same time, if a peaking signal is detected, it autonomously reduces the applied gain to avoid hard clipping. The resulting sound can be more pleasing to the ear as well as sounding louder during nominal periods.

ENA DynRangeComp.PNG


DAVC Settings

TBA

Time Settings

  • Select Advanced AlphaCom > Time Settings from the menu
ENA TimeSettings.PNG


Time Settings: You can enable Network Time Protocol, select the time zone and set the hostname or the IP address of the NTP server.

Advanced Network tab

SNMP

A set of SNMP functions are available in the IP station. SNMP (Simple Network Management Protocol) is a protocol for centralizing the management of devices in IP networks.

See SNMP Settings for futher information.

802.1X

IEEE 802.1X is an IEEE Standard for port-based Network Access Control (PNAC). It provides an authentication mechanism to devices wishing to attach to a LAN, either establishing a point-to-point connection or preventing it if authentication fails. For details on configuration, see IEEE 802.1X.

Firewall

All IP Stations have an embedded firewall. See Firewall for details.

Amplifier Settings tab

Status

The Status page


  • Faults
    • Display currently active faults on amplifier
    • The page is automatically refreshed each 10 seconds (can be manually refreshed)
    • Only faults that are active for enabled monitoring options are visible
    • If the page is empty there are no reported faults
  • Temperature measurements
    • Display different temperature levels
  • Voltage measurements
    • Display measured voltage levels for diagnostics

Line Control

The Line Control page


The Line Control page





Voltage options:

  • Line Voltage choose speaker line voltage from 70V or 100V options
  • Voltage is saved independently

Channel 1/Channel 2 options:

  • Channel Enabled will disable/enable selected channel, this shutdowns/starts channel amplifier and is not related to disabling channel registration (Station Main → Main Settings → Registration Settings → CH2/Audio in → Disabled)
  • Master Volume in dB changes channel volume for digital audio
  • Analog Route Line In to ch - (only available when ln1 → Line In Type is Line Input) will analog route line in audio to channel output - this is HW Bypass
    • On ENA2 hardware when enabled this option will disable digital audio playback (from IP) and has to be selected for both channels simultaneously
      • Routing starts working when device boots
  • Analog Routing Gain (only available when Analog Route Line In to ch is enabled) in dB offers setting gain when analog routing is selected, Master Volume values are not used. Setting goes from -6 to 0dB.
  • Monitor Mode can be Disabled, Manual for manual monitor triggering and Continuous for continuous monitoring
    • To get access to monitoring configuration options, either type of monitoring has to be enabled

Line In options:

  • Line In Type selects which input is used for audio input: Line in or Microphone
  • Impedance changes line in impedance
  • Gain changes line in gain
  • Phantom Microphone (only available when Line In Type is Microphone Input) enables phantom power for microphone


Monitoring options

Available monitoring options when Monitoring is set to Continuous or Manual:

Channel 1/Channel 2:

  • LET Monitoring enables Line End Transponder monitoring
  • Line Monitoring enables Speaker Line Monitoring (SLM)
  • Line Monitoring Options (only available when Line Monitoring is enabled)
    • Detailed Line Fault Reporting will enable separate reporting of open and shorted, not available on all speaker line configurations
    • Load Change monitor line load change
    • Ground Fault monitor line ground fault
  • Manual Monitoring Options (only available when Monitor Mode is Manual)
    • Remove LET Faults when enabled LET faults will be removed when manual monitoring is finished
    • Remove SLM Faults when enabled SLM faults will be removed when manual monitoring is finished
  • Fault Report Options
    • Report Faults Severity selects how are line faults reported on device GUI as critical (red exclamation sign) or warnings (yellow exclamation sign)
  • Suspend Monitoring Options (only available when Monitor Mode is Continuous)
    • When Suspended Monitoring is enabled, the amplifier will suspend the monitoring signal when there is a call on the channel to avoid false alerts and maintain audio quality.
  • LET (only available when LET Monitoring is enabled)
    • 10 LETs per channel can be added
    • Failed Counter How many times LET should fail before error is reported
  • Calibration Info (only available when channel monitoring is enabled, configured and saved)
    • Calibrate command (35 seconds timeout) will attempt channel calibration
    • Reset Calibration (3 seconds timeout) will reset channel calibration
    • Measure (60 second timeout, only available if Monitor Mode is Manual and channel is successfully calibrated) will manual monitor channel for 60 seconds and report any faults detected

Line In:

  • Pilot Tone Sensing (only available when Advanced Alphacom → Lines → ln1 → Line In Type is Line Input)
  • Phantom Microphone Monitoring (only available when Advanced Alphacom → Lines → ln1 → Line In Type is Microphone Input and Phantom Microphone is enabled)
    • When enabled, a fault is reported when a phantom powered microphone is disconnected. Default values are tested to work well detecting an ECM3000 phantom powered microphone.
  • Current Connected Minimum (only available when Phantom Microphone Monitoring is enabled). Sets the minimum amount of current in microamperes passing through the microphone connection before the alert is triggered.
  • Voltage Connected Minimum (only available when Phantom Microphone Monitoring is enabled).

RCO/RCI Config

There are 6 Control Outputs (RCO) and 6 Control Inputs (RCI) available. (On the ENA2100-AC amplifier there are 2 RCOs and 2 RCIs).

The RCO/RCI Config page




Configuration of the outputs and inputs is done from AlphaPro:


Monitoring options

The ENA amplifier offers monitoring of the outputs and the inputs:

  • RCOs
    • RCO Monitoring alerts when the signal on the contacts are outside the configured legal values.
    • Limit Low OK - If the RCO triggers and the voltage is below this value, it is reported as "Shorted".
    • Limit High Not OK - If the RCO is not above this voltage when output is high, it is reported as an "Overload".
  • RCIs
    • RCI Config allows configuring the thresholds for when the RCI triggers. An RCI has an open voltage of 10V across the terminals. A resistor network is needed to ensure that RCI's can be monitored properly.
    • Not Connected - When the voltage on the pin is higher than this threshold, it's set as Not Connected.
    • Not Pressed - Low threshold for the RCI to be considered not pressed.
    • Pressed - High threshold for the RCI to be considered pressed.
    • Monitor RCI enables monitoring of RCI.

Advanced Config

Enable and configure various monitoring features.

The Advanced Config page




  • Internal Power Monitoring
    • Monitor AC Power enable AC power monitoring
    • Monitor DC Power enable DC power monitoring
  • Internal Monitoring Parameters
    • Voltage Warning Deviation Issue a warning if internal voltage changes more than configured percentage from reference voltage
    • Voltage Alert Deviation Issue a alert if internal voltage changes more than configured percentage from reference voltage
    • Voltage Deviation Report Report in GUI status bar if internal voltage changes more than configured percentage from reference voltage
    • Current Deviation Report Report in GUI status bar if internal current changes more than configured percentage from reference voltage
  • Headphone (Not available in the ENA2100-AC amplifier)
    • Monitor Headphone reports if headphone is disconnected
  • Fan Amplifier
    • Alarm High On starts alarm on sequence if ambient temp is above high limit for this amount of time
    • Alarm High Off starts alarm off sequence if ambient temp is below high limit for this amount of time
    • Max PWM Off starts fan normal PWM sequence if ambient temp is below high temp limit for this amount of time
    • Wait Fan OFF number of seconds fan is running after lower temp level for fan running reached
    • Fan Spin Up number of ms fan is running at full speed after spinning up
    • Verify Fan Operation number of seconds fan is running with fixed speed (60% max) when verify fan procedure is activated
    • Wait Verify Fan Operation time to wait after fan stops running before Verify Fan Operation procedure is activated
    • RPM Deviation fan RPM deviation used for fan speed checking
    • RPM Status Deviation fan RPM deviation used for GUI reporting
    • PWM Spin UP start Fan with Spin-Up factor in percentage of PWM max
    • Deviation report minimum percent before temp change reported
  • Ethernet Switch
    • Monitor Eth 1 monitor Ethernet switch port 1 cable connection
    • Monitor Eth 2 monitor Ethernet switch port 2 cable connection

Configuration of the AlphaCom server

AlphaPro configuration

Configure amplifier directory number for Channel 1

Go to Users & Stations > General tab.

  • Directory Number - must match the "Ch1 Out Directory Number" configured in the amplifier
  • Display Text - Any text
  • Station Type - Set to Substation
  • CCoIP Station - Tick this checkbox
Configure ENA Amplifier - Channel 1



Configure amplifier directory number for Channel 2

If the two loudspeaker channels should be addressed separately, you need to enter a directory number also for the second channel:

Go to Users & Stations > General tab.

  • Directory Number - must match the "Ch2 Out Directory Number" configured in the amplifier
  • Display Text - Any text
  • Station Type - Set to Substation
  • CCoIP Station - Tick this checkbox
Configure ENA Amplifier - Channel 2




AlphaWeb configuration

Filter settings

The TCP port 50001 ("IP Stations") and UDP ports 61000-61150 ("VoIP Audio") must be enabled on the ethernet port used by the amplifier. By default these ports are enabled on ethernet port 1.

Log on to the web interface of the AlphaCom server, and select System Configuration > Filters.


Enable ports for IP Stations (and amplifiers)


Licenses

One ENA Amplifier Channel License is required per amplifier channel.

  • 1009641701: License for 1 Exigo amplifier channel
  • 1009641702: License for 2 Exigo amplifier channels
  • 1009641703: License for 3 Exigo amplifier channels
  • 1009641706: License for 6 Exigo amplifier channels
  • 1009641712: License for 12 Exigo amplifier channels

When using HD audio for background music distribution, a "High bandwidth audio license" is reqired. It is sufficient with one HD Audio license per AlphaCom server.

  • 1009648510: High bandwidth audio license

To install the license, log on to the web interface of the AlphaCom server, and select System Configuration > Licensing.