TOA IP-A1AF IP Audio Interface – For VMS/SIP Communication Systems

£395.00 EX VAT


The TOA IPA1AF is a superb PoE-powered IP Audio Interface, designed to decode IP audio streams into analog audio signals. Equipped with a built-in 15W amplifier to drive low-impedance speakers and internal storage, onto which can store up to 20 audio files. Analog audio and control outputs can also be connected to an external amplifier.

It supports SIP protocol for integrations with VoIP devices, and its 20 multicast ports are available for group paging operations. It can also receive broadcasts from Video Management Systems via ONVIF backchannel. Device control and further system integration is accessed through remote API (HTTP) or local control inputs.

Product Features:

  • HTTP commands (receive)
  • 2 control inputs and 1 control output
  • 1 audio input (LINE/MIC selectable, Phantom Power on/off)
  • Receive SIP audio, ONVIF Audio Backchannel, and Multicast
  • Local broadcast using internal audio files or local audio source

Product Applications:

  • SIP Systems
  • Retail Stores
  • Supermarkets
  • Shopping centres
  • Video Management Systems



Power Source

PoE+ , PoE (IEEE802.3af Class 3)

Frequency Response

50 Hz – 20 kHz

Rated Output


Current Consumption

22W (PoE+ / Rated Output)

Audio Delay Tmie

Min. 100 ms (when using in Local Broadcasting Mode)

Audio Codec

PCMU (G.711u), PCMA (G.711a), G.722

Network Audio I/F


Network Control I/F


Network I/F

1x 100BASE-TX (RJ45)

Network Protocol


Internal Audio Files

Max. 20 messages (Max. recording capacity: 80 MB)
Supported File Formats:
  • Delay Time: 0 – 30s
  • Interval Time: 0 – 60s
  • Trigger: Control Input or Remote API (HTTP)
  • WAV File: 8/16/44.1/48 kHz sampling frequency, 8/16 bit, monaural/stereo
  • MP3 File: 32/44.1/48 kHz sampling frequency, 64 – 320 kbps, CBR/VBR, monaural/stereo
  • Repeat Playback: Playcount (1 – 10 times), Duration (5 – 3600 s) or Timer (from start time to end time)

Clock Accuracy

±13 s per month
Power Outage Protection Period: 24h (RTC time retention at 40 °C)

Other Features

Local Broadcasting Mode: Output from LINE/MIC IN to SPEAKER OUT

Time Adjustment

Manual Time Setting; time adjustment by NTP

Audio Input

1x Line/Mic (balanced, phantom power, terminal block)

Audio Output

1x Line (balanced, terminal block)

Control Input

2x no-voltage make contact (terminal block)

Control Output

1x Open Collector (terminal block)


  • Output (Green)
  • Link/Act (Green)
  • Line/Mic In (Green / Red)
  • Status (Green / Blue / Orange / Red)

Operating Temperature

−30 °C to +55 °C

Operating Humidity

90% RH or less (No Condensation)


126 mm W x 33 mm H x 80 mm D


Steel plate, black, surface-treated, paint

Accessories (Included)

  • Rubber Feet, x4
  • Mounting Screw (M3x6), x4
  • Removable Terminal Plug (2 pins, preinstalled on the unit), x1
  • Removable Terminal Plug (6 pins, preinstalled on the unit), x2

Accessories (Optional)


To view additional information, be sure to check out the Data Sheets below.

Data Sheets

Data Sheet


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