SIP Public Address, Paging & Emergency Broadcast

The source material splits public address and intercom into three tiers that use the same endpoints but differ in where the intelligence sits. The tier is chosen by the number of sites and the amount of programme material, not by the speakers.

• Advanced tier — a server-based system with cloud or on-premise B/S architecture for multi-site management, high loading capacity, dynamic zone control, remote volume adjustment and real-time text-to-speech
• Light tier — serverless: the console IP phone becomes the built-in management platform, terminals are added by automatic discovery, and deployment is plug and play
• Endpoint tier — stand-alone IP endpoints that are fully SIP compatible, integrate with unified communication platforms and mass notification systems, and can bridge existing analog broadcast cabling into IP
• Camera and AI linkage: the IP devices support ONVIF, so they connect to third-party VMS platforms, and with AI cameras an endpoint can broadcast pre-recorded alerts triggered by events such as intrusion or loitering

The advanced tier also covers interactive digital maps, scheduled broadcasting with custom time templates, audio archiving of paging and intercom calls for review or download, and mobile app control with on-site emergency reporting.

Zones are where the models differ most in practice. The speaker family is documented with up to 20 multicast zones, the light tier adds zone management and media management, and the advanced tier adds dynamic zone control and remote volume adjustment.

• Up to 20 multicast zones on the speaker models
• Prioritisation is stated on the wall speaker (A212) and on the FH-S01 ceiling model in the wider range
• PoE is the standard supply on the endpoints, with DC options: 12 V–24 V 2 A DC on the gateways, DC on the speakers
• The A212 is documented as PoE 8 W / PoE+ 15 W in one source and IEEE 802.3at in another — the output follows the supply, so confirm the switch
• The gateway output is 10–30 W mono, adapting to the input voltage

No dimensions, weights or colour options are stated for any speaker in the source material, and no rack amplifier model numbers are given — amplifiers appear only as external line-out destinations or as built-in class D stages.

The range covers three coverage shapes. The choice follows the area and how the sound has to travel, not the price.

• Ceiling speakers (A201, and the FH-S01 in the wider range) for even indoor coverage across corridors, waiting areas and open rooms
• Wall speakers (A212) where the sound has to be aimed along a corridor or into one zone, with an optional angle-adjustment bracket
• Horn speakers (the A233 in the wider range) for long throw to open or outdoor areas — that model is IP66 and rated 30 W
• Video speakers (A513W) where the position also needs a camera: IP66, 4 MP with IR night vision, and a relay in and out for a PIR sensor, infrared sensor or strobe light
• Gateways (PA2S, and the PA3 in the wider range) where legacy analog speaker cabling has to be brought into the IP system

A233, FH-S01 and PA3 are documented in the source material but have no prepared product page in this project — ask us for their current specification, and for the RoIP gateway W712 that is covered in the wireless range.