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d. The

VAGC Max Gain (dB)

field, enter the maximum amount of gain VAGC will apply for receive

audio to remain at or above the

VAGC Low Target (dB)

. Range: 0 to 23 dB. Default: 20 dB.

e. In the

VAGC Threshold (dB)

field, enter the minimum decibel level where VAGC begins to apply gain

to receive audio. Range: –65 to –20 dB. Default: –20 dB.

IMPORTANT

Use caution when setting these fields. Avtec recommends first adjusting the

Windows Input

Level (%)

and

Mic Gain (dB)

fields before attempting to adjust any VAGC setting.

Mic Gain (dB)

adjustments should only be made in small increments.

10. Enter the level the Software Media Workstation outputs audio to the external audio interface in the

Output

Level (dB)

field. Range: –40 to 0 dB. Default: –10 dB.

11. In the

Output Level (dB)

field, enter the level, as a percentage, of the audio coming from the media workstation

to the external audio interface. Range: 0 to 100. Default: 35.

12. Under the

Scout IRR Settings

section, from the

Audio Payload Type

dropdown, select the codec used for

transmitting VoIP audio toward the Scout IRR. Default: G.711.

13. In the

Jitter Delay (ms)

field, enter the amount of time in milliseconds that the Scout IRR should wait before

decoding VoIP packets from this device. Range: 40 to 2500. Default: 60.

14. From the

Voice Activity Detection

dropdown, select whether or not the transmission of VoIP packets toward

the Scout IRR is based on the presence of voice in the audio stream. Default: DISABLED.

15. Click

Update

.

Configuring the Endpoint for NENA Devices

1. From Scout Manager's

Configuration

tab, in the

Endpoints

folder, select

Add New

>

Endpoint

.

2. Right-click the new endpoint that displays under the

Endpoints

folder and select

Properties

(or double-click the

new endpoint).

The

Endpoint Editor

dialog box displays.

3. Configure the endpoint's settings as appropriate. Verify that the

Endpoint Profile

that you assign to this

endpoint is consistent with the way you want the endpoint to operate.

IMPORTANT

This endpoint is considered a "media workstation endpoint" and not a "VPGate endpoint" because the

interface is directly connected to the console through a USB cable, and not through a VPGate. The

Name

you assign to this endpoint should be unique from other VPGate endpoints that are on the same domain.

10

Avtec USB NENA Jack Box Configuration Guide

| October 2021 | Revision 9

Summary of Contents for USB NENA

Page 1: ...n 9 Part Number 1900 340 5012 This document is confidential Phone 1 803 358 3600 Fax 1 803 358 3636 100 Innovation Place Lexington SC 29072 USA avtecinc com Scout Configuration Guide Avtec USB NENA Ja...

Page 2: ...their products are trademarks or registered trademarks of their respective holders and should be noted as such Copyright 2003 GoAhead Software Inc All rights reserved The material in this document is...

Page 3: ...13 Audio Tuning for NENA Devices 14 Physical Settings 14 External Audio Interface Settings 14 VAGC Settings 14 Appendix A General Information 15 USB NENA Jack Box Features 15 Additional Documentation...

Page 4: ...use of the USB NENA Jack Box For Scout consoles running the Software Media Workstation Avtec USB jack boxes provide a means of interfacing peripheral accessories such as headsets and handsets to Scout...

Page 5: ...f using a USB hub connected to the PC port there can only be one jack box plugged into the hub To install the USB NENA Jack Box 1 Connect the USB cable into the USB ports of the jack box and PC 2 Conn...

Page 6: ...nagement tab deselect all power saving features The feature label may display as Allow the computer to turn off this device to save power or it may break out into two sections with Wake On LAN options...

Page 7: ...cout The sections that follow provide instructions for performing these tasks 1 Configuring the USB NENA Jack Box 2 Configuring the External Audio Interface 3 Configuring the Endpoint for NENA Devices...

Page 8: ...avtecinc com sales avtecinc com 5 In the Settings section Windows Input Level field enter the percentage of the input level of the Windows Microphone level that this jack box should use Range 0 to 10...

Page 9: ...han the VAGC High Target dB value b In the VAGC High Target dB field enter the maximum level of the range in which VAGC applies attenuation to a dispatcher s input signal so the output signal remains...

Page 10: ...ct YES or NO to indicate if this jack box should receive the specified Unselect audio 17 From the Ringtones dropdown select the priority PRIMARY SECONDARY or OFF for playing ringtones on this jack box...

Page 11: ...opdown The Avtec USB External Audio Interface page displays additional fields NOTE When connecting multiple USB NENA jack boxes at a Scout console position only one jack box can be configured to enabl...

Page 12: ...ice Automatic Gain Control to adjust the level of voice audio entering the jack box from the field Default DISABLED If ENABLED is selected from the VAGC dropdown the following fields display a In the...

Page 13: ...transmitting VoIP audio toward the Scout IRR Default G 711 13 In the Jitter Delay ms field enter the amount of time in milliseconds that the Scout IRR should wait before decoding VoIP packets from thi...

Page 14: ...nfigure control level property settings in the Line Pad Properties pane as necessary By default the Properties pane displays to the right of the Scout Manager screen editor If the pane does not displa...

Page 15: ...1 803 358 3636 100 Innovation Place Lexington SC 29072 USA avtecinc com sales avtecinc com 6 Select the endpoint you configured with the Endpoint Editor 12 Avtec USB NENA Jack Box Configuration Guide...

Page 16: ...g multiple USB NENA jack boxes at a Scout console position only one jack box can be configured to enable external audio interface l When a dispatcher answers a 911 call the dispatcher s endpoint for t...

Page 17: ...rkstation console l Mic Gain dB The input level as a percentage of the Windows Microphone level that this external audio interface should use l Output Level The level at which the Software Media Works...

Page 18: ...ds Avtec recommends first adjusting the Windows Input Level and Mic Gain dB fields before attempting to adjust any VAGC setting Mic Gain dB adjustments should only be made in small increments Appendix...

Page 19: ...undancy in the event of jack box failure l Administrators can adjust audio levels microphone sensitivity and other settings to further enhance audio clarity for dispatchers and supervisors System Requ...

Page 20: ...3 05 m USB 2 0 A to B detachable cable l Power Source 5V DC via USB 400 mA max l Compatible Headset Handset Plugs o WECO equivalent WE 425 Dual WE 310 Single six circuit plug o WECO equivalent WE 327...

Page 21: ...k Box Hardware Views The USB NENA Jack Box features the following connections USB NENA Jack Box Front Panel l Jacks Connects the jack box to a handset or headset l Mute PTT LED Illuminates during PTT...

Page 22: ...k wire connects to the input 3 pin and the cable s white wire connects to the input 4 earth ground pin l Audio Out Disabled l USB Connects the jack box to a USB port on a Scout console computer l NENA...

Page 23: ...o the right The external audio interface provides connectivity for NENA devices NOTE When connecting multiple USB NENA jack boxes at a Scout console position only one jack box can be configured to ena...

Page 24: ...You can make audio adjustments either to the physical NENA device or on the Avtec USB External Audio Interface webpage Issue Dispatcher Devices Field Device Location Solution Dispatcher Outbound Audi...

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