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Hubbell GAI-TRONICS E3 Скачать руководство пользователя страница 87

Pub. 42004-550A 

Elemec3

 Console Manual

—Version 3.0 

Page 80 of 114

 

P:\Standard IOMs - Current Release\42004 Instr. Manuals\42004-550A.docx 

09/20 

Default/Staged Audio Destinations 

Default and staged audio destinations specify the audio destination properties for an event.  Each portion 
(normal and staged) of a staged event has its own independent audio destination.  When first creating a 
message, a default zone is selectable that will appear in the 

default zone:

 property drop-down list.

 

Allow Manual Zone Selection ?

—zones are dynamically selectable from either access panels or input 

contacts. 

Hold Accumulated Zones ?—

zones activated via input contacts remain active after the associated input 

contact is released; otherwise, zones activated via input contacts deactivate after the associated input 
contact is released. 

Default Zone—

zone used for the event when the event is triggered with no additional zone selections. 

Also include these outputs—

always include the following audio outputs as part of the audio destination: 

•

 

Page/Party Out 

•

 

Aux Output 

•

 

IP Aux Out 

•

 

Monitor Out 

Allow Expansion—

expands the event into locations not targeted by the event if the current allocation of 

audio resources would otherwise prohibit its broadcast.  When an event is expanded, its audio will 
broadcast over its required resources including any others that are in use. 

All or Nothing Routing

—broadcast the event only if all destinations are available; otherwise, the event 

plays only in the available destinations (i.e., play where possible). 

VLC Enabled—

system broadcasts a VLC (Volume Level Control) tone to the Page/Party output. 

Event Options 

Use the 

E

VENT 

O

PTIONS

 pane located in the upper right corner of the 

E

VENT 

B

UILDER

 screen to 

configure the audio source properties for events.  Event types differ in the type-specific properties shown 
in this panel.  Only four of the five event types have event audio source properties since the 

silent

 event 

type has no audio. 

Playback Event Options 

 

Figure 84.  Playback Event Options 

Message

—the previously defined message to broadcast. 

Содержание GAI-TRONICS E3

Страница 1: ...Configurations 8 LOCAL CONFIGURATIONS Working Directory 9 REMOTE CONFIGURATIONS Parent Directory 9 Create a New Configuration 10 Create a New Configuration from a Template 10 Open an Existing Configu...

Страница 2: ...tton 33 Access Panel Button Configuration 33 Button Properties 34 Create and Modify AP Buttons 34 Reset Buttons 36 Print Preview 36 Close 36 IP Access Panels 37 IP Access Panel Properties 38 IPAP Butt...

Страница 3: ...tup 63 SIP Properties 64 SIP Registrar Configuration 65 SP2 Properties 66 Auxiliary Inputs 1 5 Audio Input Properties 67 IP Aux 1 8 Audio Input Properties 68 Zones 69 Add Zones 69 Zone Builder 70 Avai...

Страница 4: ...Parameter Configuration and Precedence 92 I O States 93 System Properties Panel 94 Groups Panel 95 Stations Panel 96 Profiles Panel 98 Parameter Panes 99 Global System Settings Pane 99 Page Receive R...

Страница 5: ...23 Amplifier Address Assignment Conflict 22 Figure 24 Generic Amplifier Interface Properties 23 Figure 25 Hot Standby Setup 24 Figure 26 Speaker Mater Setup 25 Figure 27 Speaker Master Properties 26...

Страница 6: ...uilder 70 Figure 74 Playback Audio Configuration 72 Figure 75 Create New Message 72 Figure 76 System Tones Setup 73 Figure 77 Background Music Setup 74 Figure 78 Message Builder 75 Figure 79 System Ev...

Страница 7: ...Party Line Sockets Pane 101 Figure 112 Audio Settings Pane 101 Figure 113 VLC Settings Pane 103 Figure 114 Miscellaneous Parameters Pane 104 Figure 115 RTU Settings Excluding SVS Pane 105 Figure 116...

Страница 8: ...atures could fail due to incorrect programming resulting in a potentially life threatening situation The use of the E3 Console and E3 Portal applications should be strictly limited to individuals who...

Страница 9: ...aves the configuration to a preset storage location on the host computer called the Elemec Bridge Store the configuration to a custom location using the BROWSE button to select the storage location fo...

Страница 10: ...ifiers Select the amplifier type Edit the amplifier description Set the channel ID 1 64 Set channel zone display Enable disable load testing Identify if channel is a standby amp Amplifiers on page 21...

Страница 11: ...Playback Audio Background Music on page 74 Import Sound Files for Pre Recorded Messages Action Screen Browse and select an mp3 file Import the mp3 file it into the configuration file Playback Audio I...

Страница 12: ...he playback mode repeat continuous Select the cancel and acknowledgement options Select the default broadcast zone Select the output and logic flags to activate Select an event chain Event Builder on...

Страница 13: ...ces Summary screen on page 29 Edit the access panel description Set the access panel address 0 F Enable disable supervision Access Panel Properties screen on page 31 Program the inputs to the I O cont...

Страница 14: ...em Properties Global Audio Mix Setup on page 20 Install the E3 Console Application Download and install Adobe AIR from www adobe com Run ElemecConsole3 air to install the Elemec3 Console application T...

Страница 15: ...ist for inclusion in another When this occurs select multiple entries using click with CTRL click or click with SHIFT click mouse keyboard operations to select individual or contiguous list elements r...

Страница 16: ...to the working directory To export a configuration to the remote directory highlight the desired configuration file in the working directory list and click the right arrow key The import export opera...

Страница 17: ...ew Configuration from a Template 1 Click the NEW FROM TEMPLATE checkbox see Figure 4 to create a new configuration file based on an existing configuration A pull down list showing all existing local c...

Страница 18: ...m newest to oldest see Figure 7 Figure 7 Load Configuration 2 Select the desired file name from the list and click LOAD NOTE If the selected file was created in an earlier version of the E3 Console ap...

Страница 19: ...esired to continue to the CREATE NEW CONFIGURATION screen see the Create a New Configuration section Save saves the currently loaded configuration Open opens the LOAD CONFIGURATION screen This option...

Страница 20: ...e Elemec3 configuration Figure 12 Globals Global Settings System Type Select the system type using the pull down menu Standalone System a system consisting of a single E3 controller with associated am...

Страница 21: ...ection information see the Reference Documentation section Enable audio event recording if using an event recorder connected to the E3 controller Max Mute Duration the maximum duration of audio muting...

Страница 22: ...he ELEMEC NETWORK CONFIGURATION screen see Figure 13 Use this screen to set the network parameters for the E3 controller s Standalone systems only display one system Enter settings for both controller...

Страница 23: ...Figure 14 Locations are text only descriptors associated with any hardware device optional Locations normally specify the physical location of a hardware device at the facility location within a cabi...

Страница 24: ...may acknowledge or cancel all events or just the current event if possible Selecting BY PRIORITY enables the configuration of ack cancel actions that act upon events with equal or lower priority thre...

Страница 25: ...tion and click ADD FLAG Description a unique description for the user flag followAudio specifies if the flag asserts only while the event is active and the event s audio is broadcasting If the audio e...

Страница 26: ...ppropriate by editing the name in the list Holdover Delay the period that audio remains muted after the mute condition expires default 0 Playback Threshold priority that determines what playback event...

Страница 27: ...Threshold priority that determines attenuation of playback events when mixed with live speech All events at or above the selected threshold will attenuate the playback events when mixed with listed l...

Страница 28: ...ure 20 The summary screen displays all amplifiers in the system Figure 20 Amplifiers Summary 2 Click ADD AMPLIFIER to add an amplifier 3 Select the appropriate amplifier model on the ADD AMPLIFIER scr...

Страница 29: ...n on page 16 AmplifierChannel On the AMPLIFIER PROPERTIES screen the two channels for this model display below the amplifier graphic The number of channels physically present in the amplifier determin...

Страница 30: ...nfigured as a hot standby channel Zone Assignments button appears if a zone or zones are already assigned to the channel Click the button to open the ZONE ASSIGNMENT SUMMARY window showing what zone s...

Страница 31: ...ing the button has no effect when there are no assigned zones Hot Standby Amplifiers Hot standby amplifiers add redundancy for the amplifiers driving the speaker loops It is crucial that the amplifier...

Страница 32: ...master audio channel The speaker master powers the speaker remote modules on each channel and transmits power level tap commands and receives speaker coil health check status from the speaker remote m...

Страница 33: ...Console 3 Assign AUDIO CHANNELS to the speaker master controller Channel 1 Channel 4 Select the amplifier channel to assign to each of the four audio channels Amplifier channels are assignable to only...

Страница 34: ...the Elemec3 system The CREATE SPEAKER REMOTES dialog box displays 3 Select the amplifier channel to assign the speaker remotes to 4 Use the HOW MANY selector to enter the number of speakers with speak...

Страница 35: ...own list selector The speaker audio output power corresponds to the position of jumper P6 on the speaker remote module and the volume level selected in the E3 Console Table 3 Speaker Audio Output Powe...

Страница 36: ...ess panels connected to the physical API card s installed in the system Access Panel Interface Type Selection There are two types of API cards both types permit connection of up to four access panels...

Страница 37: ...e the button template layout The button template defines the default button layout for the physical access panels in the Elemec3 system see the Access Panel Button Configuration section Add Access Pan...

Страница 38: ...causes the current access panel to swap audio path values with the other panel Audio path assignments of access panels connected to an API type I cards are set by the system Location the physical loc...

Страница 39: ...utton Access Panel Mute Setup Click the MUTING button on the ACCESS PANEL PROPERTIES screen to configure muting of local loudspeaker s to prevent acoustic feedback through the access panel s microphon...

Страница 40: ...tput relays that disconnect speakers from the amplifier channel s Remove Button Click REMOVE on the ACCESS PANEL PROPERTIES screen to remove an access panel from the configuration A confirmation promp...

Страница 41: ...The BUTTON PROPERTIES pane in the center of the screen contains a representation of the button panel with the fields used to define each button above it Each button has a type appearance and additiona...

Страница 42: ...the four global mutes requires mute selection Global Mute Select a configured global mute from the list opens the Manage Global Mutes screen Playback initiates an alarm requires event selection Event...

Страница 43: ...N APPEARANCE to set the button text and color Each button type has a changeable default text and color Button Type type of the button Button Color color of the button Button Label text label for the b...

Страница 44: ...LS SUMMARY screen to add IPAP definitions to the Elemec3 configuration Define a maximum of 16 IPAPs in an Elemec3 system Figure 36 IP Access Panels Summary 1 Click ADD IP ACCESS PANEL to add an IPAP I...

Страница 45: ...but can be acknowledged Urgent fault acknowledgement must occur before clearing the fault Time to Live ttl the maximum number of router hops that the multicast packets traverse before being discarded...

Страница 46: ...iting displays the description of the IPAP being configured Page Level Functions Each button page in the IPAP configuration is a button panel in the IPAP application ADD Button adds button pages to th...

Страница 47: ...ties Use the IPAP BUTTON PROPERTIES pane to configure the buttons on each button page for the current IPAP Figure 40 IPAP Button Properties There are two BUTTON FUNCTIONS at the right end of the IPAP...

Страница 48: ...ft key for the following functionality NEXT PAGE navigate to the next button panel page PREVIOUS PAGE navigate to the previous button panel page HOME navigate to the page defined as home Button Screen...

Страница 49: ...button appearance IPAP panels have two tone colors or are black with a color ribbon Button Type displays the button type Button Color Click and select a color from the palette Button Label sets the l...

Страница 50: ...ation load that profile s button screen Configure multiple HUBBCOM stations with the same profile PIN to load a common screen on multiple HUBBCOM stations GAI Tronics publication 42004 531 covers down...

Страница 51: ...UBBCOM screen in the position they occupy in the list Create and insert a blank button to place functional buttons in the desired position on the HUBBCOM APLite screen 5 Click CLOSE to return to the A...

Страница 52: ...Style Select the desired button style color ribbon or solid color from the drop down list Preview view only field displays what the button will look like 3 Click CLOSE to return to the previous screen...

Страница 53: ...k All IP I O devises communicate on the same control socket The socket number consists of a multicast IP address and port number separated by a colon The default I O Control Socket is 239 238 238 238...

Страница 54: ...puts Monitored Input Module 8 optionally supervised inputs Monitored Relay Module 8 relay outputs with 8 optionally supervised inputs Beacon Monitor 8 supervised outputs designed to monitor power dist...

Страница 55: ...ocx 09 20 I O Controller Properties Figure 49 Elemec I O Controller Properties Description a generic unique name for the I O controller generated by default Location A the location of the I O controll...

Страница 56: ...e E3 Console sequentially assigns each input address based on the card address and input number The first input on I O card zero is 0 1 the second input on card zero is 0 2 and so on The properties fo...

Страница 57: ...state in column two to enable the other fields in the row to define the output Description user defined unique description of the output Relay Normal idle State specifies the relay s idle state disab...

Страница 58: ...20 Figure 53 Inhibit Groups Configuration Add Inhibit Groups Click ADD INHIBIT GROUP and enter a description for the inhibit group The INHIBIT GROUP BUILDER screen opens see Figure 54 Use the INHIBIT...

Страница 59: ...GNED list on the right To remove entries 3 Select the input from the assigned pane 4 Click the left arrow button to move them back to the AVAILABLE INPUTS list To remove all list elements click CLEAR...

Страница 60: ...ed on time setting expires and then transitions back to idle Output Groups Use output groups to group outputs together to simplify output assignments for events Output groups contain outputs output gr...

Страница 61: ...h client and server The E3 controller functions as both a client and a server The E3 system internal Modbus device supports up to 255 Modbus inputs and 255 Modbus outputs The configuration screen disp...

Страница 62: ...tem Port TCP port number for the Modbus protocol Default 1502 Inputs Tab Figure 58 E3 Modbus TCP Server Properties Inputs Tab Coil Address Modbus coil address assigned to the input Valid coil addresse...

Страница 63: ...id data values are FF00 hexadecimal ON 0000 hexadecimal OFF All other data values are invalid Outputs Tab Figure 59 Modbus Outputs Tab Coil Address Modbus coil address assigned to the output Valid coi...

Страница 64: ...ach coil address NOTE Returned data values are FF00 hexadecimal ON 0000 hexadecimal OFF External Modbus TCP Devices 1 Click ADD EXTERNAL DEVICE to add external Modbus TCP server device modules The ADD...

Страница 65: ...active while the input coil is on and immediately cancels when turned off by a Modbus client Momentary The event is active when the discrete input coil is ON and remains active until an event CANCEL...

Страница 66: ...lly OFF The output Modbus coil is OFF data 0000 when the event is inactive The output Modbus coil is ON data FF00 when the event is active Follow Audio assuming the event is a playback type the output...

Страница 67: ...Sources Enabled The SOURCES ENABLED checkboxes enable the live audio sources in the E3 system Figure 63 Audio Inputs Configuration 1 Select the check boxes for the audio input sources in the Elemec3 s...

Страница 68: ...tiate when audio is detected on the Page Party input Volume Level gain of the Page Party audio Max Duration maximum duration of a single Page Party broadcast Start Trim the recording delay at the begi...

Страница 69: ...th a VOIP TELEPHONE INTERFACE PROPERTIES button discussed below Event 1 Event 2 Code Event the DTMF code to trigger events one and two If either event has a DTMF code specified the caller is prompted...

Страница 70: ...nation Ring Count A System number of rings before the telephone interface answers Selecting the VoIP telephone interface option replaces this setting with the VOIP TELEPHONE INTERFACE PROPERTIES butto...

Страница 71: ...he SIP Registrar IP PABX The SIP Registrar and the E3 controller negotiate this parameter so the actual registration interval may be different than the value entered Keep Alive Interval time seconds t...

Страница 72: ...ate if the data rate drops below 250 bytes per second Excessive packet loss is present at this data rate SIP Registrar Configuration Click the ADD REGISTRAR button to configure the SIP telephone inter...

Страница 73: ...swer Delay the amount of time minutes seconds the telephone interface will wait for an SP2 handset user to access the party line before disconnecting the call Party Max Duration the maximum duration m...

Страница 74: ...perties Insert Required the AUX interface requires an insert Enable inserts on the GLOBALS panel from the SYSTEM PROPERTIES screen if they are used by any of the enabled audio input sources see Source...

Страница 75: ...Attenuation attenuation can be applied to the input Configure the attenuation setting on the GLOBALS panel on the SYSTEM PROPERTIES screen see the Global Settings section Is Unicast an IP auxiliary i...

Страница 76: ...Elemec3 system A zone is a set of output destinations for events The destination types that zones include are amplifier channels configured zone s outputs output groups logic flags and IP destinations...

Страница 77: ...SYSTEM PROPERTIES screen see the Globals section Beneath the ZONE DESCRIPTION field are four selectable audio outputs Select the audio outputs to include in the zone The available audio outputs are I...

Страница 78: ...ve selected zones to the ASSIGNED AUDIO DESTINATIONS list on the right IP Destinations add previously defined IP destinations to this zone select the IP DESTINATIONS from the AVAILABLE DESTINATIONS li...

Страница 79: ...uals 42004 550A docx 09 20 Figure 74 Playback Audio Configuration Add Message Click ADD MESSAGE on the PLAYBACK AUDIO CONFIGURATION screen to open the CREATE NEW MESSAGE screen Figure 75 Create New Me...

Страница 80: ...t for this message with the proper default settings for use with an input contact or scheduled event Default Zone the default zone for the event s created LOGIC FLAG SETUP Select AUTOMATICALLY CREATE...

Страница 81: ...e after a system reset An access panel can override the default zone for broadcasting background music Background Music Interval the period in hours minutes and seconds for the background music to sto...

Страница 82: ...st on the left and clicking the right arrow button to move the fragment to the MESSAGE SEQUENCE pane Select a message fragment in the MESSAGE FRAGMENTS list to access the play button Press the green p...

Страница 83: ...highest priority Change the priority of an event event group by highlighting the item and using the SET PRIORITY up and down arrows to change the position in the list Event priority is critical to th...

Страница 84: ...nt type from the drop down list The EVENT BUILDER screen opens Event Builder The event builder screen contains a parent section displaying the event s root properties and six additional panes to confi...

Страница 85: ...ers the potential future action of changing an event from normal to staged Send to Event Recorder sends event audio to the event recorder The event recorder must be enabled on the GLOBALS panel on the...

Страница 86: ...activation by the event The name of the output group includes either default or staged appended to the name to signify which behavior normal default or staged is being modified and therefore also sho...

Страница 87: ...e these outputs always include the following audio outputs as part of the audio destination Page Party Out Aux Output IP Aux Out Monitor Out Allow Expansion expands the event into locations not target...

Страница 88: ...from the drop down list for when the event triggers from an input that does not provide its own audio Pre Tone pre announcement tone for the live audio broadcast These tones are accessible through th...

Страница 89: ...rce Specific selected and disabled because all external audio sources need an input contact to trigger the source since they do not have PTT buttons Source available sources are enabled in the LIVE AU...

Страница 90: ...is selected cancelling or acknowledging this event prevents initiation of the specified event Conditional Chain initiate one of two events specified in the DO drop down list based on the status of th...

Страница 91: ...Active events in the group will effectively take turns playing as long as they are active Contingent Override initiate an alternate event if more than one event in the group becomes active The conting...

Страница 92: ...zone for the E3 system installation 1 Click ADD SCHEDULED EVENT to create a new scheduled event The CREATE NEW SCHEDULED EVENT dialog box opens Figure 90 Create New Scheduled Event 2 Enter a descript...

Страница 93: ...month Available Zones pane contains the list of zones in the E3 system Assigned Zones pane contains the list of zones assigned to this scheduled event 3 Configure the parameters for the scheduled eve...

Страница 94: ...ve or cleared Use the E3 Portal application to acknowledge urgent faults See the E3 Portal application manual Pub 42004 485 see the Reference Documentation section External Faults user defined faults...

Страница 95: ...S dialog box see the IP Aux 1 8 Audio Input Properties section for information on these inputs Figure 94 Edit IP Input Aux IP Outputs Monitor Out Selecting either the IP AUX OUTPUT or the IP MONITOR O...

Страница 96: ...ONS The IP DESTINATIONS screen shows all available USER defined IP destinations Add edit or remove IP destinations on this screen The parameters for IP destinations are the same as the IP AUX OUTPUT F...

Страница 97: ...ments portions of the SP2 Console to configure SP2 SVS HUBBCOM devices in an E3 system The following sections provide information to configure SP2 SVS HUBBCOM devices in the Elemec3 Console Please ref...

Страница 98: ...on the upper left corner of each parameter field label and match the color of the location in the configuration where it was set The flag colors are blue for parameters configured on the SYSTEM PROPE...

Страница 99: ...guration hierarchy in the E3 Console They appear with slightly dimmed flags to indicate they are configured with default settings Change the value assigned to an attribute at this level of the hierarc...

Страница 100: ...e n 1 5 ONHOOK The handset is on hook OFFHOOK The handset is off hook ON Always ON OFF Always OFF HEALTHY No fault conditions are detected FAULTY Any fault condition is detected LINKUP The network int...

Страница 101: ...4 550A docx 09 20 System Properties Panel Click the SYSTEM PROPERTIES button at the top of the screen to access the SYSTEM PROPERTIES Panel The GLOBAL SYSTEM SETTINGS parameter pane expands by default...

Страница 102: ...s level SP2 SVS groups relate to the hexadecimal group selector switch position in the physical SP2 stations All stations with the same switch setting are in the same group Organize stations in up to...

Страница 103: ...el section Collapsed Parameter Panes Below the SP2 group information pane are the collapsed parameter panes Click the arrow to expand the pane containing parameters needing modification see the Parame...

Страница 104: ...e the station list utility Hostname name that this station will have on the IP network The E3 Console assigns the factory assigned serial number for the hostname IP Address currently grayed out becaus...

Страница 105: ...ls in the configuration NOTE Configuration changes to any parameter implemented in a profile override the previously set value for all parameters assigned in the profile Figure 106 Manage Profiles Pan...

Страница 106: ...signation string value indicating the name of the SP2 system A network can have only one system designation Version current configuration version It is important to update the VERSION parameter in the...

Страница 107: ...g Page Routing The AUDIO OUTPUT fields control the destination of received page audio Select 600OHMOUT SPEAKER or BOTH using the drop down list for each AUDIO OUTPUT Page Transmit TX Sockets Pane Figu...

Страница 108: ...arty Line Sockets Pane Multicast Socket Assignments Five party line multicast sockets are preconfigured in the E3 Console for use in the E3 system Audio Settings Pane Figure 112 Audio Settings Pane Vo...

Страница 109: ...5 25 5 1 2 4 9 14 18 24 30 NOTE Specify this setting here to override the headset volume potentiometer adjustment on all SP2 stations 600 Ohm Out Volume sets the audio level of the 600 ohm audio outpu...

Страница 110: ...er VLC Settings VLC Amp Mode OFF LOWER THAN GREATER THAN EQUAL operator used to compare the SP2 station s VLC amplifier threshold to the event s VLC threshold to control VLC while the event targets an...

Страница 111: ...ressed after lifting the handset to start paging to the PAGETX_B_SOCK multicast address The handset pressbar does not need to be pressed to initiate the page Pressing the handset pressbar without hold...

Страница 112: ...mode OFF NO NC NO_S NC_S MNO_S SB_S HV_S The available options are limited to the station s valid options at the station level of the configuration All options are available at the remaining configura...

Страница 113: ...ocesses it according to the E3 configuration SVS OUT condition that activates the RTU output on the station SVS Triggering SVS IN 1 Trigger and SVS IN 2 Trigger specifies the action taken or triggered...

Страница 114: ...SMTP Password password required to authenticate the SMTP From account on the SMTP server SNMP Setup System Only The parameters under this heading are view only parameters that are inherited from the S...

Страница 115: ...Release 42004 Instr Manuals 42004 550A docx 09 20 The five default page and party sockets cannot be deleted Multicast Socket Assets Relay Groups Relay groups combine relays on separate devices into a...

Страница 116: ...escription of the VLC level to represent its purpose 4 Add VLC levels for all necessary VLC usage needs 5 Use the SET PRIORITY up and down arrows to configure the relative priority of the VLC levels F...

Страница 117: ...IEW PANEL Station List Button opens the MANAGE STATIONS panel shown below This panel provides filtered lists of station identifiers in the SP2 E3 configuration All stations in the configuration are li...

Страница 118: ...he number of stations 1 250 to add to the configuration where their group selector switch will be set to the group number selected in the filter Create As selects the type of station SP2 STATION SVS S...

Страница 119: ...r Upload copies the configuration to the Elemec Bridge location for upload to an E3 controller using the E3 Portal application Save as Copy saves the current configuration with a new name Save Configu...

Страница 120: ...ry and consists of a main file config db plus several audio message mp3 files Controller The central device of the PAGA system that coordinates audio routing and event activation requests in accord wi...

Страница 121: ...his is employed primarily to prevent acoustic feedback Stand Alone System An Elemec3 system that consists of a single system E3 controller This type of system has no backup in the case of controller f...

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