Dialog Semiconductor SC14S DECT Module User Manual Rev 68 2959 01 Bx 101217

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User Guide
VoiceLift
VoiceLift Pro
Microphones
VoiceLift Pro Microphone Kits (VLM) and
VoiceLift Pro Microphone Systems (VLS)
Featuring the PVS 407D PoleVault Digital Switcher
68-2959-01 Rev. Bx
10 17
Safety Instructions
Safety Instructions • English
WARNING:
This symbol,
, when used on the product, is intended to
alert the user of the presence of uninsulated dangerous voltage within
the product’s enclosure that may present a risk of electric shock.
ATTENTION: This symbol,
, when used on the product, is intended
to alert the user of important operating and maintenance (servicing)
instructions in the literature provided with the equipment.
For information on safety guidelines, regulatory compliances, EMI/EMF
compatibility, accessibility, and related topics, see the Extron Safety and
Regulatory Compliance Guide, part number 68-290-01, on the Extron
website, www.extron.com.
Istruzioni di sicurezza • Italiano
AVVERTENZA:
Il simbolo,
, se usato sul prodotto, serve ad
avvertire l’utente della presenza di tensione non isolata pericolosa
all’interno del contenitore del prodotto che può costituire un rischio di
scosse elettriche.
ATTENTZIONE:
Il simbolo,
, se usato sul prodotto, serve ad
avvertire l’utente della presenza di importanti istruzioni di funzionamento
e manutenzione nella documentazione fornita con l’apparecchio.
Per informazioni su parametri di sicurezza, conformità alle normative,
compatibilità EMI/EMF, accessibilità e argomenti simili, fare riferimento
alla Guida alla conformità normativa e di sicurezza di Extron, cod. articolo
68‑290‑01, sul sito web di Extron, www.extron.com.
Sicherheitsanweisungen • Deutsch
WARNUNG: Dieses Symbol
auf dem Produkt soll den Benutzer
darauf aufmerksam machen, dass im Inneren des Gehäuses dieses
Produktes gefährliche Spannungen herrschen, die nicht isoliert sind und
die einen elektrischen Schlag verursachen können.
VORSICHT: Dieses Symbol
auf dem Produkt soll dem Benutzer in
der im Lieferumfang enthaltenen Dokumentation besonders wichtige
Hinweise zur Bedienung und Wartung (Instandhaltung) geben.
Weitere Informationen über die Sicherheitsrichtlinien, Produkthandhabung,
EMI/EMF-Kompatibilität, Zugänglichkeit und verwandte Themen finden Sie in
den Extron-Richtlinien für Sicherheit und Handhabung (Artikelnummer
68-290-01) auf der Extron-Website, www.extron.com.
Instrucciones de seguridad • Español
ADVERTENCIA: Este símbolo,
, cuando se utiliza en el producto,
avisa al usuario de la presencia de voltaje peligroso sin aislar dentro del
producto, lo que puede representar un riesgo de descarga eléctrica.
ATENCIÓN: Este símbolo,
, cuando se utiliza en el producto, avisa
al usuario de la presencia de importantes instrucciones de uso y
mantenimiento recogidas en la documentación proporcionada con el
equipo.
Para obtener información sobre directrices de seguridad, cumplimiento
de normativas, compatibilidad electromagnética, accesibilidad y temas
relacionados, consulte la Guía de cumplimiento de normativas y seguridad
de Extron, referencia 68-290-01, en el sitio Web de Extron, www.extron.com.
Instructions de sécurité • Français
AVERTISSEMENT :
Ce pictogramme,
, lorsqu’il est utilisé sur le
produit, signale à l’utilisateur la présence à l’intérieur du boîtier du
produit d’une tension électrique dangereuse susceptible de provoquer
un choc électrique.
ATTENTION : Ce pictogramme,
, lorsqu’il est utilisé sur le produit,
signale à l’utilisateur des instructions d’utilisation ou de maintenance
importantes qui se trouvent dans la documentation fournie avec le
matériel.
Pour en savoir plus sur les règles de sécurité, la conformité à la
réglementation, la compatibilité EMI/EMF, l’accessibilité, et autres sujets
connexes, lisez les informations de sécurité et de conformité Extron, réf.
68‑290-01, sur le site Extron, www.extron.com.
Instrukcje bezpieczeństwa • Polska
OSTRZEŻENIE: Ten symbol,
, gdy używany na produkt, ma na celu
poinformować użytkownika o obecności izolowanego i niebezpiecznego
napięcia wewnątrz obudowy produktu, który może stanowić zagrożenie
porażenia prądem elektrycznym.
UWAGI: Ten symbol,
, gdy używany na produkt, jest przeznaczony do
ostrzegania użytkownika ważne operacyjne oraz instrukcje konserwacji
(obsługi) w literaturze, wyposażone w sprzęt.
Informacji na temat wytycznych w sprawie bezpieczeństwa, regulacji
wzajemnej zgodności, zgodność EMI/EMF, dostępności i Tematy pokrewne,
zobacz Extron bezpieczeństwa i regulacyjnego zgodności przewodnik, część
numer 68-290-01, na stronie internetowej Extron, www.extron.com.
Инструкция по технике безопасности • Русский
ПРЕДУПРЕЖДЕНИЕ:
Данный символ,
, если указан на продукте,
предупреждает пользователя о наличии неизолированного опасного
напряжения внутри корпуса продукта, которое может привести к поражению
электрическим током.
ВНИМАНИЕ: Данный символ,
, если указан на продукте,
предупреждает пользователя о наличии важных инструкций
по эксплуатации и обслуживанию в руководстве,
прилагаемом к данному оборудованию.
Для получения информации о правилах техники безопасности,
соблюдении нормативных требований, электромагнитной
совместимости (ЭМП/ЭДС), возможности доступа и других
вопросах см. руководство по безопасности и соблюдению
нормативных требований Extron на сайте Extron: ,
www.extron.com, номер по каталогу - 68-290-01.
安全说明 • 简体中文
警告：
产品上的这个标志意在警告用户该产品机壳内有暴露的危险 电压，
有触电危险。
注 意：
产 品 上 的 这个 标 志 意 在 提 示 用 户 设 备 随 附 的 用 户 手 册 中 有
重要的操作和维护(维修）说明。
关于我们产品的安全指南、遵循的规范、EMI/EMF 的兼容性、无障碍
使用的特性等相关内容，敬请访问 Extron 网站 , www.extron.com，参见
Extron 安全规范指南，产品编号 68-290-01。
安全記事 • 繁體中文
안전 지침 • 한국어
警 告:
若產品 上使 用此 符 號 ，是 為了提 醒 使 用者，產品 機 殼內 存 在 著
可能會導致觸電之風險的未絕緣危險電壓。
注意
若產品上使用此符號，是為了提醒使用者，設備隨附的用戶手冊中有
重要的操作和維護（維修）説明。
有關安全性指導方針、法規遵守、EMI/EMF 相容性、存取範圍和相關主題的詳細資
訊，請瀏覽 Extron 網站：www.extron.com，然後參閱《Extron 安全性與法規
遵守手冊》，準則編號 68-290-01。
경고: 이 기호
가 제품에 사용될 경우, 제품의 인클로저 내에 있는
접지되지 않은 위험한 전류로 인해 사용자가 감전될 위험이 있음을
경고합니다.
주의:
이 기호
가 제품에 사용될 경우, 장비와 함께 제공된 책자에 나와
있는 주요 운영 및 유지보수(정비) 지침을 경고합니다.
안전 가이드라인, 규제 준수, EMI/EMF 호환성, 접근성, 그리고 관련 항목에
대한 자세한 내용은 Extron 웹 사이트(www.extron.com)의 Extron 안전 및
규제 준수 안내서, 68-290-01 조항을 참조하십시오.
安全上のご注意 • 日本語
警告: この記号
が製品上に表示されている場合は、筐体内に絶縁されて
いない高電圧が流れ、感電の危険があることを示しています。
注意: この記号
が製品上に表示されている場合は、本機の取扱説明書に
記載されている重要な操作と保守(整備)の指示についてユーザーの注意
を喚起するものです。
安全上のご注意、法規厳守、EMI/EMF適合性、その他の関連項目に
ついては、エクストロンのウェブサイト www.extron.com より『Extron Safety
and Regulatory Compliance Guide』(P/N 68-290-01) をご覧ください。
Copyright
© 2017 Extron Electronics. All rights reserved.
Trademarks
All trademarks mentioned in this guide are the properties of their respective owners.
The following registered trademarks(®), registered service marks(SM), and trademarks(TM) are the property of RGB Systems, Inc. or
Extron Electronics (see the current list of trademarks on the Terms of Use page at www.extron.com):
Registered Trademarks (®)
Extron, Cable Cubby, ControlScript, CrossPoint, DTP, eBUS, EDID Manager, EDID Minder, Flat Field, FlexOS, Global Configurator,
Global Scripter, GlobalViewer, Hideaway, HyperLane, IP Intercom, IP Link, Key Minder, LinkLicense, LockIt, MediaLink, MediaPort, NetPA,
PlenumVault, PoleVault, PowerCage, PURE3, Quantum, SoundField, SpeedMount, SpeedSwitch, System INTEGRATOR, TeamWork,
TouchLink, V‑Lock, VideoLounge, VN‑Matrix, VoiceLift, WallVault, WindoWall, XTP, and XTP Systems
Registered Service Mark(SM) : S3 Service Support Solutions
Trademarks (™)
AAP, AFL (Accu‑Rate Frame Lock), ADSP (Advanced Digital Sync Processing), Auto‑Image, CableCover, CDRS (Class D Ripple
Suppression), Codec Connect, DDSP (Digital Display Sync Processing), DMI (Dynamic Motion Interpolation), Driver Configurator,
DSP Configurator, DSVP (Digital Sync Validation Processing), eLink, Entwine, EQIP, EverLast, FastBite, FOX, FOXBOX,
IP Intercom HelpDesk, MAAP, MicroDigital, Opti‑Torque, ProDSP, QS‑FPC (QuickSwitch Front Panel Controller), Room Agent,
Scope‑Trigger, ShareLink, Show Me, SIS, Simple Instruction Set, Skew‑Free, SpeedNav, StudioStation, Triple‑Action Switching, True4K,
Vector™ 4K , WebShare, XTRA, ZipCaddy, and ZipClip
FCC Compliance Statement
NOTE: For more information on safety guidelines, regulatory compliances,
EMI/EMF compatibility, accessibility, and related topics, see the Extron Safety and
Regulatory Compliance Guide on the Extron website.
This device complies with Part 15 of the FCC Rules for portable devices only.
Operation is subject to the following two conditions: (1) This device may not cause
harmful interference, and (2) This device must accept any interference received, including
interference that may cause undesired operation of the device.
Changes or modifications to the equipment not expressly approved by Extron Electronics
could void the user’s authority to operate the equipment.
NOTE: This equipment has been tested and found to comply with the limits for
a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a residential
installation.
This equipment generates, uses and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a
particular installation.
If this equipment does cause harmful interference to radio or television reception, which can
be determined by turning the equipment off and on, the user is encouraged to try to correct
the interference by one or more of the following measures:
•
Reorient or relocate the receiving antenna
•
Increase the separation between the equipment and receiver
•
Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
•
Consult the dealer or an experienced radio/TV technician for help.
The VoiceLift Pro System has been tested/evaluated and found to comply with the FCC
radiated exposure limits and meets the FCC radio frequency (RF) Exposure Guidelines.
The Receiver unit must be installed and operated keeping it at least 20cm away from the
person’s body. The system must not be co-located or operating in conjunction with any
other antenna or transmitter.
Compliance IC
Canada, Industry Canada (IC) Notices
CAN ICES-3 (B)/NMB-3(B)
This device complies with Industry Canada licence-exempt RSS standard(s). Operation is
subject to the following two conditions: (1) this device may not cause interference, and (2)
this device must accept any interference, including interference that may cause undesired
operation of the device.
The VoiceLift Pro System has been tested/evaluated and found to comply with RSS 102
rf exposure limits and meets the ISED radio frequency (RF) Exposure Guidelines. The
Receiver unit must be installed and operated keeping it at least 20cm away from the
person’s body. The system must not be co-located or operating in conjunction with any
other antenna or transmitter.
IC conformité
Canada, avis d’Industry Canada (IC)
CAN ICES-3 (B)/NMB-3(B)
Le présent appareil est conforme aux CNR d’Industrie Canada applicables aux appareils
radio exempts de licence. L’exploitation est autorisée aux deux conditions suivantes :
(1) l’appareil ne doit pas produire de brouillage, et (2) l’utilisateur de l’appareil doit accepter
tout brouillage radioélectrique subi, même si le brouillage est susceptible d’en compromettre
le fonctionnement.
Le système de radiofréquence VoiceLift Pro a été testé et évalué, a été jugé en conformité
avec les limites d’exposition aux radiofréquences CNR-102, et respecte les lignes directrices
relatives à l’exposition aux radiofréquences de ISDEC. Le récepteur doit être installé et
fonctionner en conservant une distance minimale de 20 cm entre l’appareil et le corps
humain. Le système ne doit pas être placé à proximité ou fonctionner en association avec
une autre antenne ou un autre émetteur.
Conventions Used in this Guide
Notifications
The following notifications are used in this guide:
CAUTION: Risk of minor personal injury.
ATTENTION : Risque de blessure mineure.
ATTENTION: Attention indicates a situation that may damage or destroy the product or
associated equipment.
NOTE: A note draws attention to important information.
Software Commands
Commands are written in the fonts shown here:
^AR Merge Scene,,Op1 scene 1,1 ^B 51 ^W^C
[01] R 0004 00300 00400 00800 00600 [02] 35 [17] [03]
E X! *X1&* X2)* X2#* X2! CE}
NOTE: For commands and examples of computer or device responses
mentioned in this guide, the character “0” is used for the number zero and “O”
is the capital letter “o.”
Computer responses and directory paths that do not have variables are written in the font
shown here:
Reply from 208.132.180.48: bytes=32 times=2ms TTL=32
C:\Program Files\Extron
Variables are written in slanted form as shown here:
ping xxx.xxx.xxx.xxx —t
SOH R Data STX Command ETB ETX
Selectable items, such as menu names, menu options, buttons, tabs, and field names are
written in the font shown here:
From the File menu, select New.
Click the OK button.
Specifications Availability
Product specifications are available on the Extron website, www.extron.com.
Contents
Introduction............................................................ 1
SIS Configuration and Control......................... 26
About this Guide.................................................. 1
About the VoiceLift Pro Microphone Kits
(VLM Kits)........................................................... 2
About the VoiceLift System (VLS)......................... 3
VoiceLift Pro Microphone Features...................... 4
Application Diagram............................................ 5
Overview........................................................... 26
Host to Receiver Communications..................... 26
Error Response.............................................. 26
Timeout......................................................... 26
Commands and Responses.............................. 27
Using the Command and Response Table..... 27
Symbol Definitions......................................... 27
Command and Response Table for SIS
Commands...................................................... 28
VLM Kit Installation and Operation................... 6
VoiceLift Pro Microphone Kit Overview................. 6
VLP 302 Microphone Features......................... 7
VLH 302 Microphone Features........................ 9
Installing the VLC 302 Charger and
Charging the Microphones............................... 10
Installing the VLR 302 Receiver......................... 12
Connections.................................................. 12
Setting up the Microphones............................... 13
VLP 302 Pendant Microphone....................... 13
VLH 302 Handheld Microphone..................... 14
Pairing the Microphones with the VLR 302........ 14
Verify which Microphones are Paired.............. 14
Pair New Microphones.................................. 14
Setting up VLP 302 Instant Alerts...................... 16
Example: Setting Up an Instant Alert.............. 16
Tips for Using the Microphones......................... 17
Reference Information....................................... 29
Updating Firmware with Firmware Loader.......... 29
Downloading Extron Firmware Loader........... 29
Installing Firmware Loader............................. 30
Downloading Firmware.................................. 30
Installing Firmware with Firmware Loader....... 31
Resetting the VLR 302....................................... 32
Reset Mode 1................................................ 32
Reset Mode 2................................................ 32
Reset Mode 3................................................ 32
Extron Warranty................................................... 33
VoiceLift System Installation............................ 18
Recommended Installation Tools....................... 18
Step 1 — Mount the VLR 302 Receiver............. 19
Rack Mounting.............................................. 19
Zip Clip Mounting.......................................... 20
Step 2 — Mount the FF 120 Speakers.............. 20
Step 3 — Install the PVS 407D Switcher........... 23
PoleVault Switcher Installation........................ 23
Step 4 — Connect the Receiver and
Speakers to the PoleVault Switcher.................. 24
Step 5 — Set up the Microphones and
Test the System................................................ 25
VoiceLift Pro Microphones User Guide • Contents
vii
viii
Introduction
This section covers the following topics:
•
About this Guide
•
About the VoiceLift Pro Microphone Kits
•
About the VoiceLift System
•
VoiceLift Pro Microphone Features
•
Application Diagram
About this Guide
This guide describes the components, installation, and operation of the Extron VoiceLift
Pro Microphone Kit and the VoiceLift System.
VoiceLift Pro Microphone Kits (VLM kit) include the pendant or handheld
microphones, the receiver, and the charging station (see About the VoiceLift Pro
Microphone Kits on the next page for details).
•
NOTE: VoiceLift Pro Microphone Kits can be part of a VoiceLift System or can be
installed and used within a new or existing PoleVault, WallVault, or PlenumVault
System.
VoiceLift Systems (VLS) include a microphone kit, a PVS 407D switcher, and FF 120
Flat Field Speakers (see About the VoiceLift System on page 3 for details).
•
CAUTION: Risk of explosion. Do not replace the battery with an incorrect type. Dispose
of used batteries according to the instructions.
ATTENTION : Risque d’explosion. Ne pas remplacer la pile par le mauvais type de pile.
Débarrassez-vous des piles usagées selon le mode d’emploi.
ATTENTION:
• Installation and service must be performed by authorized personnel only.
• L’installation et l’entretien doivent être effectués par le personnel autorisé
uniquement.
• UL listed electrical boxes are recommended.
• Des boîtiers électriques approuvés UL sont recommandés.
The following terms are used in this guide:
•
“Microphone” refers to the VLP 302 or VLH 302.
•
“Receiver” refers to the VLR 302 receiver. The receiver can be mounted into Extron
enclosures or can be rack mounted. One receiver can host up to two microphones.
•
“Charging station” refers to the VLC 302 charger for dual microphones (VLP or VLH).
•
“PoleVault switcher” refers to the PVS 407D PoleVault switcher. For details about the
PVS 407D Switcher, see the PVS 407D PoleVault Digital Switcher User Guide.
VoiceLift Pro Microphones User Guide • Introduction
About the VoiceLift Pro Microphone Kits (VLM Kits)
A VoiceLift Pro Microphone Kit is a classroom microphone amplification system that enables a
teacher or presenter to be clearly heard at a comfortable level throughout the entire room.
There are three types of VoiceLift VLM kits available:
•
VLM 3001 includes:
One VLP 302 pendant microphone, a VLR 302 receiver, and a VLC 302 charging station.
•
VLM 3002 includes:
Two pendant microphones (VLP 302), a VLR 302 receiver, and a VLC 302 charging station.
•
VLM 3002H includes:
One VLP 302 pendant microphone, one VLH 302 handheld microphone, a VLR 302
receiver, and a VLC 302 charging station.
NOTES:
• A VLM kit can be integrated into an existing PoleVault, WallVault, or PlenumVault
System. For details about integrating a VLM kit into an existing system, see the
PoleVault Digital Systems (featuring the PVS 407D) Installation Guide (included with
the installed system and also available at www.extron.com).
• If any items in the VLM kit are damaged or missing, contact the Extron S3 Sales &
Technical Support Hotline.
VoiceLift Pro Microphones User Guide • Introduction
About the VoiceLift System (VLS)
The VoiceLift System consists of a VLM kit, a PoleVault switcher, and two FF 120 speakers.
There are three types of VoiceLift Systems:
•
VLS 3001 contains:
The VLM 3001 kit, a PVS 407D PoleVault switcher, and two FF 120 speakers.
•
VLS 3002 contains:
The VLM 3002 kit, a PVS 407D PoleVault switcher, and two FF 120 speakers.
•
VLS 3002H contains:
The VLM 3002H kit, a PVS 407D PoleVault switcher, and two FF 120 speakers.
A VoiceLift system can operate in either single or dual microphone configurations. Dual
microphones (typically assigned as Instructor and Student microphones) may be used
individually or simultaneously (see VoiceLift Pro Microphone Kit Overview on page 6
for more information).
NOTE: If any VoiceLift System items are damaged or missing, contact the Extron S3
Sales & Technical Support Hotline.
VoiceLift Pro Microphones User Guide • Introduction
VoiceLift Pro Microphone Features
•
Lightweight microphones — The microphones are made of lightweight and
impact-resistant polycarbonate material. The VLP 302 pendant microphone can be
worn comfortably around the neck or clipped to clothing. The VLH 302 can be used for
multiple presenters and as a student pass-around microphone.
•
Built-in DSP — The receiver has an integrated digital signal processor (DSP) that
maximizes sound quality and intelligibility.
•
Two microphones per classroom — An installed VoiceLift System supports up to
two microphones in each classroom and can be used by instructors and students.
•
Power switch — The VLP 302 pendant microphone has an easily accessible switch
on the side to mute the sound and power the microphone on and off. The VLH has a
sliding switch which toggles the microphone on and off.
•
Volume buttons — Volume buttons on the VLP 302 are conveniently located, enabling
the presenter to easily raise and lower the volume during use. Volume buttons on the
VLH 302 are hidden within the battery compartment.
•
Instant alert e-mail messaging — The VoiceLift receiver can be configured to allow
the teacher to send e-mail alerts, if needed, by pressing the VLP microphone Volume
buttons (see D Relays 1 and 2 on page 12 and Setting up VLP 302 Instant
Alerts on page 16 for details).
•
Auxiliary microphone input (VLP 302) allows use of an optional lavalier or headset
microphone.
•
Auxiliary audio input (VLH 302) for an external audio source, such as an MP3 player.
•
Battery power — The VLP 302 and VLH 302 microphones are powered by a single
NiMh or alkaline AA battery. NiMh batteries can be recharged in the VLC 302 charging
station.
•
VLC 302 charging station — Holds and recharges up to two microphones.
•
Receiver mounting options — The VLR 302 receiver is compact and can be
mounted within Extron enclosures or can be rack mounted.
VoiceLift Pro Microphones User Guide • Introduction
Application Diagram
The application diagram below shows a typical classroom installation incorporating the
VoiceLift System.
Figure 1.
Typical Room Installation
VoiceLift Pro Microphones User Guide • Introduction
VLM Kit Installation
and Operation
This section covers the following topics:
•
VoiceLift Pro Microphone Kit Overview
•
Installing the VLC 302 Charger and Charging the Microphones
•
Installing the VLR 302 Receiver
•
Setting up the Microphones
•
Pairing the Microphones with the VLR 302
•
Setting up VLP 302 Instant Alerts
•
Tips for Using the Microphones
VoiceLift Pro Microphone Kit Overview
The figure below shows the path of the audio signal through the VoiceLift System.
Figure 2.
VoiceLift System Audio Signal Path
VLP or VLH Microphone — The VLP 302 and VLH 302 microphone transmits the
voice audio signal to the VLR 302 receiver.
VLR 302 Receiver — The VLR 302 receives the signal from the microphone, and
outputs a balanced mono line level signal (-10 dBV) to the PoleVault switcher.
PoleVault switcher — The PVS 407D PoleVault switcher functions as an amplifier
for the VoiceLift System. It amplifies the audio signal from the VLR 302 receiver and
sends it to the speakers. The switcher powers speakers placed throughout the room to
improve the signal-to-noise ratio of the voice to at least +15 dB.
VoiceLift Pro Microphones User Guide • VLM Kit Installation and Operation
VLP 302 Microphone Features
Figure 3.
VLP 302 Microphone Features
A — Status LED (tri-color)
B — Microphone acoustic ports
C — Auxiliary microphone input (3.5 mm
mono female input jack)
D — Function button
E — Spring Clip
F — Microphone identification
label recess
G — Power/mute button
H — Volume button (increase)
I — Volume button (decrease)
J — Charging contacts
Status LED — This LED indicates the microphone power, volume, and charging status as
follows:
LED indicators when the microphone is powered on and in use:
LED Color
Indication
LED off
Microphone is OFF or battery not installed
Green – steady
Microphone ON
Green – slow blinking
Microphone muted
Green – single blink
Volume adjusted (increased or decreased)
Red – slow blinking
Low battery (30 minutes or less of talk time left).
Recharge battery.
Red – steady
Battery life depleted. Recharge battery.
Red – steady (5 seconds)
Instant Alert activated. Volume Up and Down buttons
pressed and held simultaneously for 3 seconds (relay 1 triggered).
LED and relay revert states after 5 seconds.
Amber (flashes for 5 seconds)
Function button activated.
Function button was pressed and held for 2 seconds (relay 2 is
triggered and latches to opposite state).
Red and green – alternate blinking
Microphone in discovery mode and attempting to pair with
receiver
LED indicators when the microphone is charging:
LED Color
Indication
Red – steady
Battery charging
Green – steady
Battery fully charged
Red and green – alternate blinking
Incompatible, faulty or failed battery detected. Replace battery.
Microphone acoustic audio input ports — The microphone receives voice audio through
these two acoustical ports. Do not block these ports while the microphone is in use.
VoiceLift Pro Microphones User Guide • VLM Kit Installation and Operation
C
Auxiliary microphone input (Audio In) — Connect an auxiliary lavalier microphone
into this 3.5 mm mono auxiliary mic input jack. When an external lavalier microphone is
connected, the built in microphone elements in the VLP 302 are disabled.
Function button — When this button is pressed and held for two seconds, the
microphone signals the receiver to toggle Relay 2 to its opposite state.
NOTE: The status LED flashes amber for 5 seconds, indicating that the relay has
been toggled.
Also, when this button is pressed simultaneously with the Power button, it initiates Link
(pairing) mode.
Spring clip — Use this clip to attach the VLP 302 to clothing or to a lanyard (included)
(see step 4 on page 13 for instructions).
The lanyard lock is used to retain proper position of the microphone when clipped to
the lanyard. The breakaway clasps help to release the lanyard from around the neck if
it is pulled tightly. Place this clasp at the back of your neck when wearing the pendant
microphone.
Microphone identification label recess — Place the appropriate provided sticker in
this space to identify the microphone user (see step 3 on page 13).
Power and mute button (Off/Mute/On) — Press and hold the Power button (for
three seconds) to power the microphone on or off.
With the device on, press and release this button momentarily to mute or unmute the
microphone.
HI Volume buttons — Raise or lower the microphone volume.
Pressing and holding both of these buttons simultaneously for 3 seconds sends a signal
to the receiver to close its Relay 1 port. This is typically used to trigger an alert (see
Setting up VLP 302 Instant Alerts on page 16).
Charging contacts — These make contact with the contacts in the charging station
when placed into the VLC 302. A full charge can take up to 5 hours.
VoiceLift Pro Microphones User Guide • VLM Kit Installation and Operation
VLH 302 Microphone Features
Figure 4.
VLH 302 Microphone Features
Power Switch — Slide up to power on and down to power off.
Power Status LED — Dual color LED (green and red) indicates power or Link status.
LED indicators when the microphone is powered on and in use:
LED Color
Indication
LED off
Microphone is OFF or battery is not installed.
Green – steady
Microphone ON and paired to receiver
Green – single blink
Volume adjusted (increased or decreased).
Red – slow blinking
Low battery (30 minutes or less of talk time left).
Recharge battery.
Red – steady
Battery life depleted. Recharge battery
Red and green – alternating
blink
Microphone in discovery mode and attempting to pair
with receiver.
LED indicators when the microphone is charging:
LED Color
Indication
Red – steady
Battery charging
Green – steady
Battery fully charged
Red and green – alternating
blink
Incompatible, faulty, or failed battery detected.
Check and replace battery.
Auxiliary Stereo Audio Input — 3.5 mm stereo input accepts line level audio signals,
but does not support external lavalier/lapel microphones. When an active aux input
device is connected, the built in microphone is disabled. The audio from the auxiliary
audio source is summed to mono and transmitted to the receiver.
D Link button — This button is used to enable pairing mode.
EF Volume buttons — Increase ( ) or decrease ( ) the microphone volume.
VoiceLift Pro Microphones User Guide • VLM Kit Installation and Operation
Installing the VLC 302 Charger and Charging the Microphones
The VLC 302 charges the microphone battery. It is powered by an external wall power
supply (provided). The microphone battery requires up to 5 hours to charge fully. It is safe
to charge for extended periods, but Extron recommends storing the microphone out of the
charger with the battery removed.
NOTES:
• The charging station is to be used with NiMH rechargeable batteries only.
• Fully charge the supplied batteries before first use.
Follow these steps to connect the charger and
charge the microphones.
1. Connect the 5 VDC, 2.6 A wall charger from
a 110-130 VAC (U.S.) or a
100-240 VAC (international), 50-60 Hz
power source, to the mini B USB adapter.
2. Connect the USB mini plug end of the
adapter to the USB mini jack located on the
back of the VLC 302 (see 2 at right).
3. To install the battery, remove the microphone battery
cover as follows:
•
VLP 302: Unscrew the two rear panel screws
located on either side of the rear clip.
•
VLH 302: Slide the battery cover downward
until it stops, then lift the cover up and off the
microphone.
Insert the battery, aligning the + and – poles as
indicated inside the compartment.
CAUTION: Use only NiMH rechargeable batteries provided by Extron when charging
the microphone. Use of any rechargeable battery other than the type provided by
Extron may cause explosion, chemical leakage, and injury.
ATTENTION : Utilisez uniquement les piles rechargeables de type NiMH fournies par
Extron, lorsque vous rechargez le microphone. L’utilisation d’une pile rechargeable
différente du type fourni par Extron peut présenter un risque d’explosion, de fuite de
substances chimiques, ou de blessure.
ATTENTION: Be sure to replace the battery with the correct type and to dispose of
used batteries appropriately.
ATTENTION: Assurez vous de remplacer les piles par le bon modèle et de jeter les
piles usagées de façon appropriée.
VoiceLift Pro Microphones User Guide • VLM Kit Installation and Operation
10
4. Insert the microphone into one of the charger slots (4).
The microphone LED turns red when the microphone is
charging.
LED Color
Indication
Red – steady
Battery charging
Green – steady
Battery fully charged
Red and green – alternate
blinking
Incompatible or failed
battery detected. Check
and replace battery.
NOTES:
• The microphone battery requires up to 5 hours to charge fully. It is safe to
charge for extended periods, but Extron recommends storing the microphone
out of the charger with the battery removed.
• Make sure that the microphones are fully seated in the charging station to
ensure proper charging.
ATTENTION:
• Do not charge alkaline batteries.
• Ne rechargez pas les piles alcalines.
• Use only Extron provided LPS type power supply charger for charging.
• Veuillez utiliser uniquement le bloc d’alimentation de type LPS fourni par Extron
pour la recharge.
VoiceLift Pro Microphones User Guide • VLM Kit Installation and Operation
11
Installing the VLR 302 Receiver
The VLR 302 receiver outputs audio signals from the microphones as one balanced mono
line level signal to the PVS switcher or connected audio amplifier. In dual microphone
systems, the signals from the two microphones are mixed at the receiver and then output to
the connected audio amplifier.
Connect the VLR 302 to the PVS 407D PoleVault switcher as shown below. For mounting
options and instructions, see Step 1 — Mount the VLR 302 Receiver on page 18.
Connections
Figure 5.
VLR 302 Front and Rear Panel
Reset button — Use this button to reset the receiver (see Resetting the VLR 302 on
page 32).
Mini USB configuration port — Connect a laptop or PC to this port using a suitable
USB cable for device configuration and firwmare updates only.
RJ-45 output connector — Connect the PVS 407D to this RJ-45 connector, using a
shielded RJ-45 cable as shown below.
NOTE: The receiver is powered by the PVS switcher. This connection also allows
for communication between the switcher and the receiver, to send configuration
commands and receive relay status information.
Figure 6.
The VLR 302 Rear Panel
Relays 1 and 2 (normally open/unlatched) — Wire this 4-pole captive screw connector
for relays 1 and 2 (see Setting up VLP 302 Instant Alerts on page 16).
•
Relay 1 is triggered to close (latched) for 5 seconds when both volume buttons on
the microphone are pressed simultaneously for 3 seconds. The relay reverts back to
normally open once the 5 seconds has expired. Microphones must be configured
as "teacher" microphones to trigger relays.
•
Relay 2 is triggered to close when the Function button on the microphone
(configured as "teacher") is pressed for 2 seconds. The relay stays closed (latched)
until the Function button is pressed and held again for 2 seconds.
VoiceLift Pro Microphones User Guide • VLM Kit Installation and Operation
12
Setting up the Microphones
VLP 302 Pendant Microphone
1. Verify that the battery is installed and fully charged.
2. Set the microphone(s) for either "teacher" or "student" mode using the DIP switch,
accessible from beneath the battery cover (see 2 below):
•
In teacher mode (default), all microphone
features are fully functional. Set the dip
switch to the OFF (down) position to
enable “teacher” mode.
•
In student mode, all buttons are
disabled except for power. Set the
dip switch to the ON (up) position to
enable “student” mode.
3. Apply the appropriate label (provided) to identify the
microphone (see 3 at right).
4. To wear as a pendant microphone:
Push the lanyard into the guides on the
lanyard lock (see a at right).
Open the microphone clip (b).
Slide up the lanyard lock under the clip,
then release the clip (c).
Place the lanyard
around your neck and
adjust the
microphone position
by sliding it up so it
rests approximately
6 inches (15.2 cm)
below your chin.
5. Turn the microphone(s) on by holding the power button for
three seconds.
NOTE: Each VLM kit includes microphones and a
VLR 302 receiver that have already been paired. If there
is a need to pair a microphone, follow the steps on the
next page.
6. Speak in a normal tone of voice, adjusting the volume level as
necessary.
7. When finished, return the microphone to the charging station.
VoiceLift Pro Microphones User Guide • VLM Kit Installation and Operation
13
VLH 302 Handheld Microphone
1. Verify that the battery is installed and fully charged.
2. Turn the microphone on by sliding up the power
switch (see A at right).
NOTE: Each VLM kit includes microphones
and a VLR 302 receiver that have already
been paired. If there is a need to pair a
microphone, follow the steps in the next
section, below.
3. Speak in a normal tone of voice, adjusting the
volume level as necessary. The volume buttons are
located under the microphone cover (see B at right).
4. When finished, return the microphone to the charging station.
Pairing the Microphones with the VLR 302
Follow the steps below to pair microphones with a receiver, if necessary.
Verify which Microphones are Paired
Before pairing new microphones, follow these steps to verify which microphones are already
paired:
1. Ensure that the microphones are fully charged. Power
each microphone on, one at a time, to determine if the
microphones are paired to the VLR 302 receiver.
NOTES:
• As each microphone is powered on, one of
the VLR link slot LEDs (see A at right) will
illuminate if the microphone is paired.
• Only one microphone can be paired to each
LINK slot on the VLR receiver.
2. Once you have determined which microphones are
paired, turn them off.
Pair New Microphones
Follow the steps in this section to pair microphones to the VLR 302 receiver.
NOTES:
• All paired microphones must be turned off before pairing new microphones.
• If adding a new microphone to the system (or replacing a current microphone), and
both LINK slots are currently assigned, reset the VLR 302 to clear the paired history
(see Resetting the VLR 302 on page 32 for reset options).
• Clearing the paired history removes microphone LINK information from the VLR 302.
All microphones must be paired again, including any microphone that was previously
paired.
1. Press and hold the LINK button on the VLR 302 receiver (see B above) for 4 seconds to
start pairing mode. If LINK slots are available, one of the LINK LEDs blinks to indicate that
pairing mode has started.
VoiceLift Pro Microphones User Guide • VLM Kit Installation and Operation
14
NOTES:
• Once initiated, pairing mode is enabled for 30 seconds. Users must repeat the
process if they have exceeded the 30 second pairing window or if pairing was
not successful.
• Receiver Pairing/Discovery mode can also be enabled remotely via SIS
comands.Commands can be sent to the receiver through direct USB
connection or through PVS switcher connection.
• If both LINK 1 and LINK 2 LEDs flash when initiating pairing mode on the
VLR 302, this means that both LINK slots are currently occupied and paired to
microphones.
2. Follow the steps below for your microphone model:
•
For the VLP 302, ensure that the microphone is powered off.
NOTE: The VLP microphone must be in “teacher” mode (DIP switch in the
down position) in order to pair (see 2 on page 13).
Then, press and hold the
Power and Function
buttons (see A and B at
right) simultaneously for 4
seconds until the status
LED blinks red and green,
indicating pairing mode has
started.
•
For the VLH 302:
Ensure that the microphone is
powered on.
NOTE: The VLH microphone must be in “student” (on)
mode in order to pair.
Then, press and hold the LINK button, located beneath the
battery cover (see C at right), for 4 seconds.
The microphone status LED changes from solid amber to alternating
red and green, indicating that pairing mode has started.
NOTE: The receiver assigns the microphone to the first available LINK slot. If the
microphone is paired successfully, one of the LINK LEDs on the VLR receiver lights
solid green.
3. After pairing the microphones, verify that they have been set up properly as shown in
Setting up the Microphones on page 13.
VoiceLift Pro Microphones User Guide • VLM Kit Installation and Operation
15
Tips for Using the Microphones
•
Speak in a normal tone of voice. When the microphone is set up properly, voice audio is
amplified just above ambient room noise.
•
Mute or turn the microphone off while having private conversations.
•
Return the microphones to the charging station when not in use. Verify that the
microphones are fully seated in the VLC 302 charger to ensure batteries are charged.
•
If you are experiencing intermittent audio problems, check the batteries and replace
them if necessary. NiMH and alkaline batteries are supported.
CAUTION: Do not replace the battery with an incorrect type. Use only NiMh or
alkaline batteries.
ATTENTION : Ne pas remplacer la pile par le mauvais type de pile. Utilisez
seulement des piles de type NiMh ou alkaline.
ATTENTION:
• Do not recharge alkaline batteries.
• Ne rechargez pas les piles alkalines.
• Dispose of used batteries according to the instructions provided on the battery
packaging.
• Débarrassez-vous des piles utilisées selon les instructions du fabricant.
VoiceLift Pro Microphones User Guide • VLM Kit Installation and Operation
16
VoiceLift System
Installation
This section provides instructions for installing the VoiceLift System (VLS). Topics include:
•
Recommended Installation Tools
•
Step 1 — Mount the VLR 302 Receiver
•
Step 2 — Mount the FF 120 Speakers
•
Step 3 — Install the PVS 407D Switcher
•
Step 4 — Connect the Receiver and Speakers to the Switcher
•
Step 5 — Set up the Microphones and Test the System
Recommended Installation Tools
The following tools are recommended to complete the installation.
•
•
•
•
•
•
•
•
•
•
Laser level, or two levels (large level for
screen installation; small level for wall
plates and projector mounts)
Tape measure
Stud finder
Drill and drill bit set, including a unibit to
cut through metal studs
Extension drill bit (3/4 inch min., 4 to 8
foot length, to drill through fire breaks)
Socket set
Pipe strap or wrapped pipe wrench
Pliers and wire strippers
Standard screwdriver set and Extron
Tweeker
Cable cutters (to cut safety wire)
•
•
•
•
•
•
•
•
•
•
•
Drywall saw and hacksaw blade
mounted on handle (for cutting ceiling
tiles)
Flashlight and safety goggles
Razor knife
2 inch hole saw
Painter’s tape (to mark up walls), pencil,
and marker pen
RJ-45 crimpers and RJ-45 connectors
Voltage tester
Fish tape, pull string, and electrical tape
(for taping fish tape to pull string)
Zip ties
Vacuum cleaner
Heat gun
Other Hardware Items
Some or all of the following installation hardware may be needed for the installation at your
particular site (may vary by installation):
•
•
•
•
•
Electrical ceiling box
Junction box
Plaster ring
Raceway
Bolts for concrete structural
ceilings where needed
•
•
•
•
•
Drywall anchors and screws
Spare ceiling tiles in case of accidental
damage during installation
Safety wire, lag eye bolts, and strain reliefs
Heat shrink
Extension cord
VoiceLift Pro Microphones User Guide • VoiceLift System Installation
17
Step 1 — Mount the VLR 302 Receiver
Rack Mounting
The receiver includes 1/8 rack mounting holes for mounting directly to a rack shelf or
architectural enclosure that supports standard Extron mounting hole patterns.
UL Guidelines for Rack Mounting
The following Underwriters Laboratories (UL) guidelines are relevant to the safe installation of
this product in a rack:
•
Elevated operating ambient temperature — If the unit is installed in a closed or
multi-unit rack assembly, the operating ambient temperature of the rack environment
may be greater than room ambient temperature. Therefore, install the equipment in an
environment compatible with the maximum ambient temperature
(TMA = +122 °F, +50 °C) specified by Extron.
•
Reduced air flow — Install the equipment in the rack so that safe operation and
adequate air flow is provided to the unit.
•
Mechanical loading — Mount the equipment in the rack so that a hazardous
condition is not achieved due to uneven mechanical loading.
•
Circuit overloading — Connect the equipment to the supply circuit and consider the
effect that circuit overloading might have on overcurrent protection and supply wiring.
Consider the equipment nameplate ratings when addressing this concern.
•
Reliable earthing (grounding) — Maintain reliable grounding of rack-mounted
equipment. Pay particular attention to supply connections other than direct
connections.
Rack Mounting Procedure
The receiver can be mounted on optional rack systems listed on the website (see
www.extron.com). To mount the unit on a rack shelf, follow the instructions provided with
the shelf accessories.
Back of the Rack Mounting Procedure
The receiver can be mounted to the rear of a rack using an optional back of rack mounting
kit (see www.extron.com). The kit allows the product to be vertically mounted to the front
or rear rack supports and face either the front or the rear of the rack. To mount the unit,
follow the instructions provided with the kit.
The VLR 302 can be mounted within the USFM 100, WMK 160 and PVM 220, as shown
below (see the PoleVault Digital System Installation Guide for details).
Figure 7.
VLR 302 Rack Mounting Options
VoiceLift Pro Microphones User Guide • VoiceLift System Installation
18
Zip Clip Mounting
Using the ZipClip 100 (optional)
To attach the receiver to the ZipClip 100 mounting clip:
1. Insert the bottom of the receiver down into the
clip, starting with one end.
2. Pivot the other end down and press until
the clip snaps into place.
To remove the receiver from the ZipClip:
1. Press the tab on the ZipClip.
2. Pivot the receiver and lift it out of the ZipClip.
To fasten the tie wraps for cable strain relief:
1. Attach the receiver to the ZipClip 100 mounting
clip as described previously.
2. Fasten the cables to the ZipClip base.
a. Insert tie wraps (“zip ties”) along the notches
on the side of the receiver and through the
tie wrap anchor points on the ZipClip, then
around the cord.
b. Connect and pull the tie wraps until they are
secure. Do not over tighten.
Step 2 — Mount the FF 120 Speakers
The FF 120 speakers are installed in ceiling tiles. They receive and output the audio signal
from the PVS 407D switcher.
Follow the steps below to install the FF 120 speakers.
NOTE: The installation must conform to national and local electrical codes and UL
requirements (see the FF 120 Flat Field Speakers User Guide for details).
1. Remove and cut ceiling tile —
Remove the ceiling tile where the
FF 120 will be installed. Cut out a
12-inch section from either end of
the tile where the speaker will be
installed, as shown at right.
2. Install the T-rail ­— Install the T-rail
crosspiece into the ceiling opening
up against the cut tile, as shown at
right.
VoiceLift Pro Microphones User Guide • VoiceLift System Installation
19
3. Cover plate ­— Loosen, but do not remove, the two
screws on the top of the cover plate, as shown on
the right. Next, slide and remove the cover plate.
4. Using Flexible Conduit ­— When using flexible
conduit, insert the conduit into the cover plate
opening using an appropriate conduit adapter,
and secure the conduit adapter to the plate, as
shown at right.
When using speaker wires without a conduit,
secure the cable clamp
adapter (included)
Cable Clamp Adapter
to the cover plate and insert
the wires through the
clamp. Tighten the
Cover Plate
screws, as shown
below.
Secondary
Attachment
Point
Rear of Speaker
5. Wire the speaker —
a. Pull the wires from the amplifier through and out of the conduit, if a conduit is used.
b. Route the two wires from the amplifier through the cover plate hole. See the wire gauge
table on page 1.
c. Strip 3/16 inch (5 mm) from the ends of the two speaker wire leads (+ and -) coming
from the amplifier. Keep the wire strands together by twisting them (do not tin the wires),
and secure the wires to the input terminals of the speaker while observing the correct
polarity.
d. Connect the red, positive (+) wire to the + speaker
terminal and connect the black, negative (-) wire to
the - speaker terminal, as shown at right.
6. Replace the cover plate and tighten the two cover plate screws that were loosened in step 3.
VoiceLift Pro Microphones User Guide • VoiceLift System Installation
20
7. Set the speaker on top of a T-rail making sure to hide the edges behind the grid rail, as
shown below.
8. If secondary support cables are being used, install them (see the illustration below).
ATTENTION:
• DO NOT allow any slack in the support cables.
• Ne laissez aucun jeu entre les câbles de support.
NOTE: Observe all applicable building codes and local ordinances when installing the speaker.
ATTENTION:
• Repeated bending of the tab may cause it to break off.
• Le fait de plier l’attache de façon répétitive peut la casser.
a. Temporarily remove a ceiling tile adjacent to the speaker and set it aside.
b. Connect a secondary support cable through the secondary attachment point, and attach
it to one of the tabs located on either side of the speaker.
c. Attach the other end of the cable to a sturdy part of the building (studs, roof struts, and
so on).
d. Repeat as needed for additional secondary support cables.
e. Replace the ceiling tile removed in step 8a.
9. Check all wiring before powering up the amplifier.
VoiceLift Pro Microphones User Guide • VoiceLift System Installation
21
Step 3 — Install the PVS 407D Switcher
The PVS 407D PoleVault Switcher receives input video and audio signals from the AV
source input wallplates, and audio signals from the VoiceLift VLR 302 receiver. It outputs and
switches the video and audio signals to a display and speakers. For details, see the PoleVault
Digital Systems Installation Guide (Featuring the PVS 407D Switcher), included with the
switcher and available at www.extron.com.
Figure 8.
PVS 407D Switcher
PoleVault Switcher Installation
1. Determine a location within the room for the PVS 407D switcher (see PoleValut Switcher
Location below).
2. Install the PVS 407D, following the instructions in the PoleVault Digital Systems Installation
Guide (Featuring the PVS 407D Switcher) and the provided mounting kit user guide.
3. Make sure that the PVS 407D front and rear panels are accessible until installation and
testing of the VoiceLift System is complete.
PoleVault Switcher Location
The PoleVault switcher can be mounted anywhere in the room. However, placing the switcher
near the ceiling makes cabling and upgrading to a full PoleVault system easier. WallVault
and PlenumVault options are also available for wall or plenum ceiling mount applications (for
installation instructions, see the installation guides for each system).
WARNING: Structural ceiling failure could cause serious injury or death. Check the
structural ceiling to ensure that it can handle a load four times the weight of the final
setup.
AVERTISSEMENT : Un défaut dans la structure du plafond pourrait provoquer des
blessures graves voire mortelles. Vérifier la structure du plafond afin de vous assurer qu’il
peut supporter une charge quatre fois supérieure au poids de l’installation finale.
Possible switcher mounting locations include:
•
Table top, cabinet, or shelf (attach the four provided rubber feet to the bottom of the unit)
•
Under a desk
•
Mounted to a wall with an Extron WMK 160 or USFM 100 WallVault Wall Mount Kit
•
Above a drop ceiling using the Extron PlenumVault PVM 220
VoiceLift Pro Microphones User Guide • VoiceLift System Installation
22
Step 4 — Connect the Receiver and Speakers to the PoleVault Switcher
NOTES:
• Use CATx shielded twisted pair STP cable with
T568A or T568B straight-through wiring.
• The connection to the PoleVault switcher powers
the receiver, and enables communication and audio
between the receiver and the switcher.
1. Pull cables to the receiver, along with any other cables that
will be attached to the receiver (such as relay connectors).
2. Connect the STP cable to the receiver Out (RJ-45) port
(see A at right).
3. Connect the cables to the PoleVault Switcher as follows:
a. Disconnect the power cable from the PoleVault switcher.
b. Plug the STP cable into the VoiceLift RJ-45 port on the switcher (see Ý below).
c. Connect cable from the speakers to the Amplified Audio Out connector on the
switcher (see Þ below).
d. Reconnect the power cable to the switcher.
Figure 9.
Connecting the Speakers and Receiver to a PVS 407D Switcher
VoiceLift Pro Microphones User Guide • VoiceLift System Installation
23
Step 5 — Set up the Microphones and Test the System
1. Set up each microphone in the VoiceLift system (see Setting up the Microphones on
page 13).
2. Set the microphone gain:
a. Power on the VoiceLift system. The Power LEDs on the microphone and receiver light
green.
b. Instructor: Place the lanyard with the pendant microphone around your neck and
adjust the lanyard as shown in step 4 on page 13.
Student: Hold the VLH handheld microphone approximately 4 inches (10.2 cm) from
your mouth. Turn off all program audio sources.
c. On the VLP microphone, raise the volume to maximum by pressing and holding
the Volume button. A double beep tone indicates that maximum volume has been
reached. There are five volume steps available.
d. On the PoleVault switcher,
while testing the microphone,
press the VoiceLift adjust
buttons to increase or decrease
the microphone input gain.
Adjust the input gain level until
an acceptable maximum level
is reached. The Signal and
Normal LEDs (see image at
right) are lit when speaking in a
normal voice.
If there is feedback, lower the VoiceLift input gain on the switcher until feedback stops.
e. Walk around the room while talking into the microphone. If feedback occurs, lower the
VoiceLift input gain on the switcher and then walk around the room again, talking into
the microphone.
NOTE: The highest gain achieved without feedback is the maximum gain for the
VoiceLift system.
f.
On the microphone, lower the volume to an appropriate level:
•
The level of your speaking voice should be enhanced, but not loud enough to sound
like a paging system.
•
Check the LEDs on the PVS switcher. The green Normal LED should light when you
speak, with the red Peak LED blinking occasionally.
NOTE: The microphone audio should be slightly audible to the person speaking
into it. Have another person listen for the audio levels and check for sound
quality.
3. Test any optional devices that have been installed.
VoiceLift Pro Microphones User Guide • VoiceLift System Installation
24

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