System Designs

The core hardware component to Digital Acoustics' paging solution is the ii3-ESS IP Audio Amplifier module. The ii3-ESS can drive a single 8-Ohm speaker, or multiple speakers in an array. With the addition of a universal 25/70V transformer, a series of speakers can be powered by a single ii3-ESS, with the quantity of speakers determined by required output levels. With a maximum output of 20 watts (8 Ohms), the ii3-ESS is capable of driving paging horns with sound pressure levels in excess of 120 db SPL. For low output applications (<8 watts) the ii3-LESS can use Power of Ethernet (POE). For higher output applications (>8 watts) an external power supply is required. 

Every acoustic environment is unique and using the right speakers is important in providing intelligible public address solutions. Digital Acoustics' speaker offerings include:

• 8" Ceiling Mounts - Round and Square
• Surface Mounted Enclosures - Square and Sloped
• Internal Horns
• External Paging Horns
• Corrections Grade Solutions (Vandal Proof)
• Weather Proof & Flame-retardant
  

Audio Distribution  Systems, PA, Paging ... the IP advantage

PA/IP (PA over IP) provides unique advantages over analog paging systems

• Proven cost saving over new single function wiring in deployment into existing buildings.
• Spans multiple facilities inter-city, regionally and globally, without head-end hardware.
• Scalable network topology facilitates expansion possibilities
• Incorporates system wide capability to add intercom, 2 way-audio (reentrant capability) and remote monitoring functions.
• Perfect for Retailers, Government  and School systems with complex inter-building distribution need.
• Easily integrate into emergency systems.
• Provides network based redundancy for emergency broadcasts, and employee evacuation systems.

Emergency Preparedness

• Provides supplemental reach to overhead paging, parking, inter-building and even individual desktop notification. 
• Network based system provides integration path to meet needs and requirements for notifications to individuals with disabilities.
• Cost effective means for compliance to Federal Emergency Decision and Notification Protocol OPM/GSA/NIH and other interagency requirements.

The flexible ii3 series product family supports paging over 25/70v line amps, desktop paging microphones and handsets. Hardware endpoint supports powering over PoE and daisy-chaining connections via dual-port RJ45  dual-port options and support for  horns, weatherproof enclosures , ceiling panels, wall panels, desktop and vandal proof speakers

• Protocols Network TCP/IP Clients/Server, UDP ; LAN 10/100

• Addressing Static or DHCP dynamically assigned IP 
• Audio Voice-band VoIP PCM, G.711, custom coded with proprietary auto-latency adjust
• Power Integrated 20 Watt amplifier, external mounts for 25/70v transformers
• Optional Interfaces  Door relays, sensors, Integrated network switches, Power over Ethernet (PoE)
• LAN Connection 10/100  Base-T, RJ45 for CAT5/CAT6. Supports wireless & fiber.

Paging models and components  

TalkMaster Communication Management Software 

Hear an actual paging audio sample here.

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