{"id":113255,"date":"2026-11-09T10:00:27","date_gmt":"2026-11-09T09:00:27","guid":{"rendered":"https:\/\/lda-audiotech.com\/?p=113255"},"modified":"2026-11-09T12:27:39","modified_gmt":"2026-11-09T11:27:39","slug":"prionet-ip-public-address-nexo","status":"publish","type":"post","link":"https:\/\/lda-audiotech.com\/en\/2026\/11\/09\/prionet-ip-public-address-nexo\/","title":{"rendered":"PRIONET expands IP public address options with NEXO"},"content":{"rendered":"

[vc_row css_animation=”” row_type=”row” use_row_as_full_screen_section=”no” type=”full_width” angled_section=”no” text_align=”left” background_image_as_pattern=”without_pattern”][vc_column][vc_column_text]In public address projects, an installation may need an alternative route for announcements if its main controllers are unavailable. In other cases, the requirement is more straightforward: distributing selective IP calls<\/strong> through amplifiers that are already installed.<\/p>\n

PRIONET, the new feature for NEXO<\/a>, addresses both scenarios. In NEO+ systems<\/a>, it can add a complementary backup communications route<\/strong> directly through the amplifiers, even where the project already has a redundant controller. It can also operate independently to distribute voice announcements over an IP network and conventional third-party amplifiers.[\/vc_column_text]Download NEXO firmware and user manual<\/a>[\/vc_column][\/vc_row][vc_row css_animation=”” row_type=”row” use_row_as_full_screen_section=”no” type=”full_width” angled_section=”no” text_align=”left” background_image_as_pattern=”without_pattern”][vc_column][vc_column_text css=”.vc_custom_1473916630{margin-top:30px !important;}”]<\/p>\n

How PRIONET distributes audio between NEXO devices<\/h3>\n

PRIONET transmits audio calls between NEXO devices using a multicast audio and control stream<\/strong>. Transmitting and receiving devices are configured for each system, along with the call destinations<\/strong>. The transmitter sends the announcement, and each receiver plays it when one of the selected destinations is configured.<\/p>\n

Calls can be initiated from an ACSI microphone connected to the transmitting NEXO or from an analogue input activated through a GPIO input. At the receiving end, NEXO provides analogue audio and a GPIO output that can trigger playback on the connected amplification system.<\/p>\n

This architecture supports two uses of the same feature: an additional route linked to an LDA PA\/VA system, or announcement distribution for an independent public address installation.[\/vc_column_text][\/vc_column][\/vc_row][vc_row css_animation=”” row_type=”row” use_row_as_full_screen_section=”no” type=”full_width” angled_section=”no” text_align=”left” background_image_as_pattern=”without_pattern”][vc_column][vc_column_text css=”.vc_custom_1473916630{margin-top:30px !important;}”]<\/p>\n

A backup route for NEO+ systems<\/h3>\n

In a NEO+ installation, PRIONET can provide an alternative route for announcements if the system controllers are unavailable. The microphone connected to the transmitting NEXO lets the operator select destinations and send the call over the IP network to the NEXO receivers configured for them.<\/p>\n

Controller redundancy and PRIONET are complementary layers: a project can have a redundant controller and, in addition, a PRIONET route for sending announcements through NEXO. This call is started manually, following the procedure defined for the installation.<\/p>\n

Each receiver connects to the amplification system through its analogue audio output and a GPIO output. In a NEO+ integration, these signals feed the amplifier’s priority input: the audio carries the announcement and GPIO triggers playback. This allows announcements to reach selected zones through a route that does not rely on NEO+ controllers to distribute that call.<\/p>\n

PRIONET does not switch over automatically<\/strong> when ACSINet is lost or a controller fails. The call must be started using the configured trigger. The design should therefore specify how this alternative route will be activated and who will use it in the intended scenario.[\/vc_column_text][\/vc_column][\/vc_row][vc_row css_animation=”” row_type=”row” use_row_as_full_screen_section=”no” type=”full_width” angled_section=”no” text_align=”left” background_image_as_pattern=”without_pattern”][vc_column][vc_column_text css=”.vc_custom_1473916630{margin-top:30px !important;}”]<\/p>\n

Independent IP public address for selective calls<\/h3>\n

PRIONET can also operate without NEO+ as an IP announcement distribution system<\/strong>. A transmitting NEXO sends the call to selected receivers, and each receiver delivers the audio to a compatible PA system through an analogue output and a GPIO control signal.<\/p>\n

This option may suit schools, campuses, corporate buildings, industrial sites or multi-building complexes that need selective calls to different zones. It can also be used to assess connections to existing amplifiers from other manufacturers, provided their inputs and activation signals are compatible with the design.<\/p>\n

In this use, PRIONET handles public address call distribution. The application does not, by itself, turn the connected installation into a certified voice alarm system: any declaration of conformity or compliance must refer to the complete system and its confirmed scope.[\/vc_column_text][\/vc_column][\/vc_row][vc_row css_animation=”” row_type=”row” use_row_as_full_screen_section=”no” type=”full_width” angled_section=”no” text_align=”left” background_image_as_pattern=”without_pattern”][vc_column][vc_column_text css=”.vc_custom_1794223650011{margin-top: 30px !important;}”]<\/p>\n

Network and integration requirements to consider<\/h3>\n

PRIONET uses an AES67 multicast audio stream. All devices in the system must be configured to receive the same stream, and the network must allow it to be distributed correctly.<\/p>\n

NEXO requires a stable Ethernet connection of at least 100 Mbps<\/strong>. On larger networks, switches that support IGMP Snooping are recommended, with the network configured to manage multicast traffic correctly. Separating audio traffic from other data may also be useful, particularly in installations with many devices or heavy network use.<\/p>\n

PRIONET supports up to 64 devices per system<\/strong>. Each receiver can be configured with up to 64 call destinations. When planning multiple transmitters, bear in mind that each receiver handles one PRIONET call at a time<\/strong>: if it receives simultaneous requests, it accepts the first and rejects the others while busy. There are no priority levels between transmitters.<\/p>\n

PRIONET can also connect to a ONE system. In this case, the analogue output of the receiving NEXO connects to an analogue input on ONE<\/a>, such as Input 1 or Input 2, and GPIO provides the control signal to enable playback. Subsequent audio distribution depends on the ONE system’s configuration.<\/p>\n

The feature requires NEXO firmware v1.4 or later<\/a>. Transmitters, receivers, destinations and the stream are configured in NEXO Config Tool<\/a>.[\/vc_column_text][\/vc_column][\/vc_row][vc_row css_animation=”” row_type=”row” use_row_as_full_screen_section=”no” type=”full_width” angled_section=”no” text_align=”left” background_image_as_pattern=”without_pattern”][vc_column][vc_column_text css=”.vc_custom_1473916630{margin-top:30px !important;}”]To assess an installation’s architecture and configuration, consult the NEXO user manual in LDA’s support resources library<\/a> or contact LDA’s technical team<\/a>.[\/vc_column_text][vc_separator type=”normal” color=”#CE132D” up=”24″][vc_column_text css=”.vc_custom_1784792887345{margin-top: 30px !important;margin-bottom: 30px !important;}”]<\/p>\n

FAQ: PRIONET and IP public address applications<\/strong><\/h3>\n

[\/vc_column_text]

\n\t

\n\n\t \n Does PRIONET automatically trigger announcements if NEO+ or ACSINet fails? <\/span>\n<\/span>\n\n \n <\/span>\n <\/span>\n <\/span>\n<\/span>\n<\/h4>\n
\n
\n [vc_column_text]No. A PRIONET call is started using the configured trigger, for example from an ACSI microphone or an analogue input activated by GPIO. The project must define how this alternative route is activated.[\/vc_column_text] <\/div>\n<\/div>

\n\n\t \n Can PRIONET operate without a NEO+ system? <\/span>\n<\/span>\n\n \n <\/span>\n <\/span>\n <\/span>\n<\/span>\n<\/h4>\n
\n
\n [vc_column_text]Yes. PRIONET can be used as an independent IP announcement distribution system, with transmitting and receiving NEXO devices connected to compatible PA amplification systems.[\/vc_column_text] <\/div>\n<\/div>

\n\n\t \n Can PRIONET complement NEO+ controller redundancy? <\/span>\n<\/span>\n\n \n <\/span>\n <\/span>\n <\/span>\n<\/span>\n<\/h4>\n
\n
\n [vc_column_text]Yes. PRIONET can add an alternative announcement route to a NEO+ installation that already has a redundant controller. This complementary path depends on the relevant equipment and links being operational.[\/vc_column_text] <\/div>\n<\/div>

\n\n\t \n Can PRIONET connect to amplifiers from other manufacturers? <\/span>\n<\/span>\n\n \n <\/span>\n <\/span>\n <\/span>\n<\/span>\n<\/h4>\n
\n
\n [vc_column_text]Yes, if the PA system is compatible with NEXO’s analogue audio output and GPIO control signal. Integration must be checked for each installation and configuration.[\/vc_column_text] <\/div>\n<\/div>

\n\n\t \n How many simultaneous calls can a PRIONET receiver handle? <\/span>\n<\/span>\n\n \n <\/span>\n <\/span>\n <\/span>\n<\/span>\n<\/h4>\n
\n
\n [vc_column_text]Each receiver handles one PRIONET call at a time. If several requests addressed to the same receiver arrive, it accepts the first and rejects the others while the channel is busy; there are no priority levels between transmitters.[\/vc_column_text] <\/div>\n<\/div>

\n\n\t \n Can PRIONET connect to a ONE system? <\/span>\n<\/span>\n\n \n <\/span>\n <\/span>\n <\/span>\n<\/span>\n<\/h4>\n
\n
\n [vc_column_text]Yes. The analogue output of the NEXO receiver can connect to an analogue input on ONE, and a GPIO output can activate playback. Subsequent distribution depends on how the ONE system is configured.[\/vc_column_text] <\/div>\n<\/div>

\n\n\t \n What network requirements does PRIONET have? <\/span>\n<\/span>\n\n \n <\/span>\n <\/span>\n <\/span>\n<\/span>\n<\/h4>\n
\n
\n [vc_column_text]All devices must share the same identifier, multicast address and port to send the audio. The network must also allow this type of connection. On larger installations, a well-configured network helps avoid transmission problems. NEXO requires a full-duplex Ethernet connection of at least 100 Mbps.[\/vc_column_text] <\/div>\n<\/div><\/div>[vc_raw_html]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[\/vc_raw_html][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

PRIONET extends IP public address with NEXO through a PA\/VA backup route and selective IP calls<\/p>\n","protected":false},"author":46,"featured_media":113256,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[279],"tags":[],"class_list":["post-113255","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technical-blog"],"acf":[],"yoast_head":"\nPRIONET expands IP public address options with NEXO - LDA Audio Tech<\/title>\n<meta name=\"description\" content=\"Learn how PRIONET extends NEXO IP public address systems with a PA\/VA backup route and selective calls across distributed installations\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/lda-audiotech.com\/en\/2026\/11\/09\/prionet-ip-public-address-nexo\/\" \/>\n<meta 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