AVN-TB20AR

20 Button Advanced Talkback Intercom, AoIP Portal

The AVN-TB20AR is a 2U rackmount 20 button version of the AVN-TB10AR with the same specification, but more station buttons allowing greater communication for larger facilities.

AVN-TB20AR

20 Button Advanced Talkback Intercom, AoIP Portal

The AVN-TB20AR is a 2U rackmount 20 button version of the AVN-TB10AR with the same specification, but more station buttons allowing greater communication for larger facilities. It also has ‘GPI/O’ and ‘Phone’ buttons for remote control of external equipment and Sonifex DHY-04 telephone hybrids, useful in an OB truck or production gallery.

Product Features

  • 20 illuminated key-cap Talk buttons plus Listen & Page buttons.

  • Phone button for remote dialling and control of an external telephone hybrid.

  • Page button and Group Talk facilities.

  • Callback button with callback source display.

  • Three user definable buttons.

  • Speaker & microphone mute buttons.

  • Mic & headset inputs (front & rear panel headset connection), headphone & speaker outputs.

  • Front panel volume control which operates on speaker/headphone outputs and incoming source levels.

  • +48V phantom power for the mic inputs.

  • Ethernet webserver and front panel control & configuration.

  • Front panel display providing source & destination information.

  • Sources from AoIP, 1 x balanced, 2 x unbalanced or S/PDIF digital inputs.

  • Destinations to AoIP or rear panel balanced & unbalanced outputs.

  • Advanced echo cancellation & mic AGC to prevent acoustic feedback.

  • Dual 1Gb lan ports & 1Gb SFP fibre port.

  • 10 user assignable GPIO ports.

  • GPI/O button for triggering external events, via physical GPIO or network commands.

  • Front panel LEDs for network audio presence, Talk activity, AGC activity, clock sync and power supply activity.

  • Two front panel monitor buttons for routing audio directly to the speaker e.g. to take an IFB feed or off-air transmission signal.

  • Ducking or mixing of inputs to speaker/headphones.

  • Dual AC & DC power supply inputs.

Typical Applications

OB truck comms, theatre comms, inter-studio comms in a TV or radio station.

Product Category

Talkback, Intercom & Control

Audio-Over-IP Specification

Open Standards:RAVENNA, AES67
Device Discovery:Bonjour (mDNS / DNS-SD)
Audio Delivery:RTP/UDP over IPv4 multicast
QoS:DiffServ
Stream Management:RTSP/SDP
Control:Ember+/webserver
Format:Linear PCM 24-bit (L24)
Channels Per Stream:2
Frames Per Packet:48
Maximum Streams:RX 6, TX 5 (fixed)
Sample Rate:48 kHz
 

Timing Synchronisation

Profile Support:Default, media & custom profiles
Timing Protocol:PTPv2, IEEE1588-2008
 

Technical Specification

 

Microphone and Headset Input

Input Impedance:>2.5kΩ balanced
Gain Range:0dB to +60dB
0dBFS Line-Up:Adjustable in steps of 3dB from -58dBu to +2dBu
Frequency Response:20Hz to 20kHz, +0/-0.2dB
Noise:-127dBu, 20kHz BW, Rs=200Ω ref. 76dB gain
 

Unbalanced Line Inputs

Input Impedance:>20kΩ
0dBFS Line-Up:+12dBu
Frequency Response:20Hz to 20kHz, +0/-0.2dB
THD+N:<-97dBFS, -30dBFS, 20Hz to 20kHz, unity gain, 20kHz BW
Noise:-100dBFS, 20kHz BW, Rs=200Ω
Crosstalk:<-97dB
 

Balanced Line Inputs

Input Impedance:>20kΩ balanced
0dBFS Line-Up:Adjustable +15/+18/+20/+22/ +24dBu
Frequency Response:20Hz to 20kHz, +0/-0.2dB
THD+N:<-110dBFS, -30dBFS, 20Hz to 20kHz, 20kHz BW
Noise:-110dBFS, 20kHz BW, Rs=200Ω
Crosstalk:<-100dB
Common Mode Rejection:>70dB @ 1kHz
 

Headphone Output

Output Impedance:Drives 150mW into 32Ω to 600Ω headphones
0dBFS Line-Up:+20dBu
Frequency Response:20Hz to 20kHz, +0/-0.2dB
THD+N:<-108dBFS, -30dBFS, 20Hz to 20kHz, unity gain, 20kHz BW
Noise:-110dBFS, 20kHz BW
 

Unbalanced Line Outputs

Output Impedance:<50Ω
0dBFS Line-Up:+12dBu
Frequency Response:20Hz to 20kHz, +0/-0.2dB
THD+N:<-95dBFS, -30dBFS, 20Hz to 20kHz, unity gain, 20kHz BW
Noise:-100dBFS, 20kHz BW
 

Balanced Line Outputs

Output Impedance:<50Ω balanced
0dBFS Line-Up:Adjustable +15/+18/+20/+22/ +24dBu
Frequency Response:20Hz to 20kHz, +0/-0.2dB
THD+N:<-110dBFS, -30dBFS, 20Hz to 20kHz, 20kHz BW
Noise:-110dBFS, 20kHz BW, Rs=200Ω
 

Loudspeaker

Power Output:4W
Volume:Mute to full volume via front panel control
 

Connections

Microphone:XLR-3 pin female (electronically balanced)
Headphone:¼ inch (6.35mm) stereo jack socket
Headset:2 x XLR-5 pin female (front/rear electronically balanced input)
Audio Inputs:2 x unbalanced stereo, RCA phono
Audio Inputs:1 x S/PDIF, RCA phono
Audio Outputs:1 x balanced stereo, RJ45
Audio Outputs:1 x unbalanced stereo, 2 x RCA phono
Audio Outputs:1 x loudspeaker output
Audio Input/Output:1 x balanced stereo input or mono input/output, RJ45
GPIO:15-way ‘D’-type socket
Network:2 x gigabit Ethernet, RJ45
Network:1 x SFP fibre
Mains AC Input:Universal filtered IEC, continuously rated 85-264VAC, 47-63Hz, 20W
DC Input:4 pin 7.5A power jack socket, 9.5-14VDC
Fuse Rating:Anti-surge fuse 2A 20mm x 5mm
 

Equipment Type

AVN-TB20AR20 channel rackmount talkback intercom control unit with RAVENNA AoIP
 

Physical Specification

Dimensions: (Raw)48.3cm (W) x 17.5cm (D) x 8.8cm (H)(2U)
Dimensions: (Raw)19” (W) x 6.9” (D) x 3.6” (H) (2U)
Dimensions (Boxed):59cm (W) x 28cm (D) x 15cm (H)
Dimensions (Boxed):23” (W) x 11” (D) x 5.9” (H)
Weight:Nett: 3.7kg Gross: 4.4kg
Weight:Nett: 8.1lbs Gross: 9.7lbs
 

Accessories

AVN-DC150150W DC power supply with KPJX-4S plug
CM-GM2:Professional Gooseneck Condenser Microphone
 

Handbooks & Guides

AVN-TB20AR Handbook[Download]
The AVN Guide[Download]

Brochures

Click to visit the brochures page.

Declarations

Click to visit the declarations page.

Firmware

Firmware - ZippedVersionV1.3.1437Date26/09/2018[Download]

Firmware Notes

AVN-TB20AR Firmware Notes[Download]