VoiceLift™ Microphone VLM 1000 and VLM 2000 68-1628-01 Rev.
Precautions Safety Instructions • English Warning This symbol is intended to alert the user of important operating and maintenance (servicing) instructions in the literature provided with the equipment. Power sources • This equipment should be operated only from the power source indicated on the product. This equipment is intended to be used with a main power system with a grounded (neutral) conductor. The third (grounding) pin is a safety feature, do not attempt to bypass or disable it.
FCC Class B Notice 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.
Table of Contents Chapter One • Introduction . ..................................................................................................... 1-1 About this Manual ..................................................................................................................... 1-2 About the VoiceLift Microphone ....................................................................................... 1-2 Components . ..................................................................................
Table of Contents, cont’d Chapter Five • Installing and Mounting the Receiver .......................................... 5-1 Planning the Installation ..................................................................................................... 5-2 Placement of the receiver . ..................................................................................................... 5-2 Room layout and content considerations ............................................................................
1 Chapter One Introduction About this Manual About the VoiceLift Microphone Application Diagram PRELIMINARY VoiceLift™ Microphone
Introduction About this Manual This manual discusses the components and operation of the Extron VoiceLift™ Microphone. For details on installation procedures, refer to the VoiceLift Microphone Installation Guide, part #68-1629-01. The following terminology is used in this manual: • VoiceLift Microphone refers to the entire system, which includes the pendant microphone, the receiver, the charging station, and any secondary receiver(s). • Pendant microphone refers to the VLP 102 microphone unit only.
Features The VoiceLift Microphone features the following: Lightweight pendant microphone — The VLP 102 pendant microphone is made of lightweight and impact-resistant polycarbonate material, and can be worn comfortably around the neck or clipped to clothing. Feedback suppression — Advanced, integrated DSP enables automatic feedback suppression while enhancing high frequency consonant sounds to maximize sound quality and intelligibility.
Introduction, cont’d Application Diagram The following diagram shows a possible installation of a VoiceLift microphone system.
2 Chapter Two Operation and Features Functional Overview of the VoiceLift Microphone Charging Station Pendant Microphone Receiver Secondary Receiver Adapter PRELIMINARY VoiceLift™ Microphone
Operation and Features Functional Overview of the VoiceLift Microphone The VoiceLift Microphone is a soundfield system, which is a low-power classroom amplification system that ensures that the teacher can be clearly heard at a comfortable level throughout the classroom. The pendant microphone, worn by the teacher/speaker, picks up speech and transmits it via IR signal to the receiver.
b Receivers — The VLR 102 receiver and the optional VLR 102 secondary receiver(s) pick up the IR signal from the microphone. If secondary receivers are present, the VLR 102 processes the signal from them. The receivers output a balanced -10 dBV line level signal via an RJ-45 connector. The signal is passed to the PoleVault switcher/amplifier through an unshielded twisted pair (UTP) cable.
Operation and Features, cont’d b DC power jack — Plug a 5 V, 0.5 A to 1 A wall charger into this coaxial center positive DC jack to provide power to the charging station. For charging status, check the microphone’s Pwr LED (see d, “Pwr LED”, under “Back and end panels” on page 2-6). Pendant Microphone The VoiceLift VLP 102 is a lightweight pendant microphone that can be worn around the neck on a lanyard (provided) or clipped to clothing. It operates via IR at two frequencies: 2.
b Audio input port (Audio In) — Connect an MP3 player or other audio device to this 3.5 mm TRS jack for auxiliary audio line input. When a device is plugged into this port, its audio is mixed with either the internal microphone or any external microphone connected to the Mic jack (a). N Because the audio input is mixed with the microphone, pressing the Volume button on the microphone affects the volume of the audio input device.
Operation and Features, cont’d Back and end panels 1 5 4 Top panel Cord Lock 2 6 3 Bottom panel PRELIMINARY VLP 102 pendant microphone back and end panels a Breakaway Clip Rotating clip — Attach a lanyard (included) to this rotating clip (see the illustration at right), or turn the clip sideways to fasten it to clothing. The provided lanyard’s features include: b • A cord lock to retain adjustments to the lanyard’s length. Place this lock behind your neck when wearing the pendant microphone.
When the microphone is powered off: LED Color Indication Red – steady Battery charging Green – steady Battery fully charged Red and green – flashing, alternating Alkaline or damaged battery detected e Microphone acoustic port — The microphone receives the audio signals via this port. Do not block this port while the microphone is in use.
PRELIMINARY Operation and Features, cont’d 2. Plug the wall charger’s cable into the charging station’s power jack. 3. Place the microphone in one of the slots in the charging station, with the charging contacts on the bottom of the microphone facing down. Charge until the Pwr LED lights green (this takes up to 6 hours).
Setting up the VLP 102 Pendant Microphone Follow these steps to set up the VLP 102 pendant microphone and use it in a classroom: 1. Set the channels on the teacher and student (if applicable) microphones, using the rotary switch located on the back of the microphone below the product label. Channels A and C are at 2.3 MHz; channels B and D are at 2.8 MHz. N Each microphone must be set to a different frequency; in other words, A and B, A and D, B and C, or C and D can be used together.
Operation and Features, cont’d 6. Attach the lanyard (provided) to the microphone’s rotating clip, and place the lanyard around your neck. The microphone should hang approximately 4 inches below your chin. Use the lanyard’s cord lock to make adjustments to the length. ~ 4” Cord Lock Breakaway Clip PRELIMINARY -orRotate the clip until it seats in one of the detents at the desired angle, and fasten the microphone to your clothing so that it is positioned approximately 4 inches below your chin. 2-10 7.
9. When finished, or at the end of the day, turn the microphone off by sliding the power switch down to the Off/Mute/Chg position. 10. Return the microphone to the charging station, or connect it to the wall charger. Make sure that the microphone is turned off before charging it. C Do not charge alkaline batteries. Tips for using the microphone • Speak in a normal tone of voice. When the microphone is set properly, your voice is amplified above ambient room noise.
Operation and Features, cont’d Receiver The VoiceLift VLR 102 receiver receives infrared signals from the VoiceLift VLP 102 pendant microphone. The receiver outputs a balanced -10 dBV line level signal via an RJ-45 connector. Integrated DSP performs feedback suppression. The VLR 102 receiver consists of the following major components: Receiver dome and base plate The tinted sensor dome filters ambient light, but lets the microphone’s IR signals pass through to the sensors.
The table below shows the pin assignments for the input port.
Operation and Features, cont’d c DIP switches • Mix switch — Selects the output mode of the receiver. m When the switch is set to Off (down), the receiver outputs microphone and auxiliary input audio on separate pins. (See the Output port pinout illustration and table, on the previous page.) This is the default state for the Mix switch. m When the switch is set to On (up), the microphone audio is mixed with the auxiliary input audio.
9 Dome LED — Located in the center of the receiver dome, this LED indicates power, carrier detection, and relay status. See the table below. LED color Indication Off Power off Green Carrier frequency detected (channel A or B) Green and amber — flashing, alternating Relay closed or no carrier detected Receiver housing and back plate The receiver housing surrounds and protects the base plate and connectors. It contains knockouts that can be removed to accommodate a raceway, if desired.
Operation and Features, cont’d a Raceway knockouts — This combination knockout accommodates two sizes of raceways when the receiver is mounted on a wall or other hard surface. The knockouts fit common types of raceways such as the Wiremold 500/700 and 2400 series. 21/32” (16.7mm) 17/32” (13.5mm) 3/4” (19.1mm) 7/8” (22.2mm) 3/4” (19.
Tab Arrow Dot Twist to Lock Arrow Align Arrows PRELIMINARY Tab Receiver Dome Attaching the receiver dome to the housing VoiceLift™ Microphone • Operation and Features 2-17
Operation and Features, cont’d Secondary Receiver The optional VLR 102 SR secondary receiver is an additional IR receiver that extends the coverage of the VoiceLift microphone in large or odd-sized rooms. The VLR 102 SR is connected to and powered via the VLR 102 receiver’s RJ-45 In port. The secondary receiver is identical in appearance to the primary receiver; however, the base plate of the VLR 102 SR contains only two RJ-45 connectors, with no captive screw connectors or DIP switches.
300’ (91.4m) Out In OUT OUT IN Out IN In OUT Out IN OUT In VLR 102 SR Secondary Receivers (optional) Out IN IN Out In VLR 102 Receiver Connecting a VLR 102 Receiver to multiple secondary receivers The table below shows the pin assignments for the secondary receiver's In and Out connectors.
Operation and Features, cont’d Adapter The VoiceLift adapter is an RJ-45 to captive screw adapter cable assembly that is used to connect the VoiceLift receiver with a PVS 204 SA PoleVault switcher. It provides a means of connecting RJ-45 connectors with captive screw connectors, enabling a plug-and-play connection from the receiver to the switcher. The adapter also breaks out power from the PoleVault switcher’s MLC port to the receiver, eliminating the need for a separate power supply.
MIC + 1 MIC - 2 3 4 12V 5 6 7 GND 8 MIC + (white) MIC - (green) GND (brown) Tx (white) Rx (blue) IR (brown) GND (black) 12V (red) Tx Rx IR GND 12V VoiceLift Adapter internal wiring RGB 1A 2A VIDEO 3 RGB POWER 12V 3A MAX I N P U T S O U T P U T S 1B 2B 4 AMPLIFIED OUTPUTS LISTED 17TT US AUDIO/VIDEO ® VIDEO 4/8 Ohms APPARATUS ON HIGH PASS FILTER STEREO ON OFF DUAL MONO AUX/MIX IN L RS-232 MLC/IR Tx Rx IR 12V A B C MLC Controller Connection PRELIMINARY VLR 102 Receiver Connecti
PRELIMINARY Operation and Features, cont’d 2-22 VoiceLift™ Microphone • Operation and Features
3 Chapter Three SIS Configuration and Control Host-to-Receiver Communications Commands and Responses Command/response Table for SIS Commands PRELIMINARY VoiceLift™ Microphone
SIS™ Configuration and Control The VoiceLift VLR 102 receiver can be controlled via a host computer that is connected to the receiver’s RS-232 control port. You can issue Extron’s Simple Instruction Set (SIS™) commands using the computer’s RS-232 interface with a communication software program such as HyperTerminal or Extron’s DataViewer.
Commands and Responses Using the command/response table The command/response table lists valid ASCII command codes, the receiver’s responses to the host, and a description of the command’s function or the results of executing the command. The ASCII to HEX conversion table below is for use with the command/response table: ASCII to HEX Conversion Table PRELIMINARY • Upper- and lowercase characters may be used interchangeably in the command field unless otherwise specified.
SIS™ Configuration and Control, cont’d Command/response Table for SIS Commands Command ASCII Command (host to receiver) Response (receiver to host) Additional description Gain and attenuation adjustment N Channel A selections also apply to channel C (student microphone); channel B selections apply to channel D (student microphone). N These commands are case-sensitive.
Command ASCII Command (host to receiver) Response (receiver to host) Additional description Query updated firmware version 4Q X1! ] Query DSP firmware version 32Q X1! ] Request general information I or 0I Mix X% • Tone X% Request model name 1I VLR•102 Show the version of firmware (if any) that was uploaded to the receiver after it left the factory. Show the firmware version of the digital signal processor (DSP) audio processing chip to two decimal places (x.xx).
PRELIMINARY SIS™ Configuration and Control, cont’d 3-6 VoiceLift™ Microphone • SIS Configuration and Control
4 Chapter Four Special Application Setting Up an Instant Alert Applications Diagram PRELIMINARY VoiceLift™ Microphone
Special Application Setting Up an Instant Alert A useful application for the VoiceLift Microphone is the instant alert. By connecting an MLC 104 IP Plus control panel to the VLR 102 receiver’s relay port, you can set up e-mail alerts to be sent out when both parts of the microphone’s Volume button are pressed and held for 3 seconds. To set up an instant alert, follow these steps: 1. Wire one of the provided two-pole captive screw connectors to one end of a communication cable.
Pull the communication cable to the MLC 104 IP Plus, and insert it into one of the MLC’s direct-insertion Digital I/O ports as follows: • Insert the black wire into the Ground port. • Insert the red wire into the first available Digital I/O port. IN Communication cable connected to Digital I/O ports 1 and Ground on an MLC 104 IP Plus control panel OUT The figure below shows a wiring diagram of the instant alert application setup.
Special Application, cont’d PRELIMINARY 4. Using Global Configurator on your computer, configure the MLC’s Digital I/O port for digital input with pull-up. Global Configurator screen for configuring the MLC’s Digital I/O port 5. Use Global Configurator to configure a monitoring device to send an e-mail when the MLC’s Digital I/O port closes. (Refer to the Global Configurator help file for procedures to configure the MLC’s Digital I/O port and the monitor using Global Configurator.) 6.
Applications Diagram The following diagram shows connections for several applications for the VoiceLift Microphone with the PoleVault system, including instant alert.
PRELIMINARY Special Application, cont’d 4-6 VoiceLift Microphone • Special Application
5 Chapter Five Installing and Mounting the Receiver Planning the Installation Installation Overview PRELIMINARY VoiceLift™ Microphone
Installing and Mounting the Receiver This section provides an overview of the procedures for planning and performing an installation of the VoiceLift VLR 102 Receiver and/or the VLR 102 SR Secondary Receiver. For the complete procedures, refer to the VoiceLift Microphone Installation Guide, part #68-1629-01.
Room factors to be considered should include, but are not confined to: • Room configuration • Line-of-sight obstructions between microphone and receiver • Ceiling and wall type (important in assessing the installation hardware needed) • Location of the VLR 102 receiver Best location is on the ceiling, at the middle of the classroom. If ceiling mounting is not possible, place high and centered on the longest wall.
Installing and Mounting the Receiver, cont’d • VLC 102 Charging Station • VLP 102 pendant microphone (additional) The following diagrams show examples of some possible secondary receiver placements and the resulting coverage: PRELIMINARY Receiver and one secondary receiver in a long room Receiver and three secondary receivers in a large room, or a room with dark walls, obstructions, and/or windows Receiver and one secondary receiver in an odd-shaped room Installation Overview The installation proc
Installing in a junction box 1. Install the junction or ceiling box (not included). 2. Attach the receiver housing to the junction box. 3. If needed, attach a conduit to the junction box. N Observe all local and national building and safety codes. Installing on a wall or other hard surface 1. Install a raceway if needed. 2. Mark the mounting screw locations on the surface, using the receiver housing for guidance. 3. If using a raceway, remove the appropriate knockout in the receiver housing. 4.
PRELIMINARY Installing and Mounting the Receiver, cont’d Junction box installation Ceiling installation Wall installation 5-6 VoiceLift™ Microphone • Installing and Mounting the Receiver
A Appendix A Reference Material Specifications — VLR 102 and VLR 102 SR Specifications — VLP 102 Pendant Microphone Specifications — VLC 102 Charging Station Part Numbers and Accessories PRELIMINARY VoiceLift™ Microphone
Reference Material Specifications — VLR 102 and VLR 102 SR Audio Tone control ������������������������������������ On or off, switch selectable Audio input Number/signal type VLR 102 ������������������������������ 1 infrared from VLM microphones 1 mono, balanced, aux/mix input 1 mono, balanced, from optional VLR 102SR VLR 102SR �������������������������� 1 infrared from VLM microphones 1 mono, balanced, from optional VLR 102SR Connectors VLR 102 ������������������������������ (1) 3.
General PRELIMINARY Power ���������������������������������������������� 12 VDC supplied by an Extron PoleVault® amplifier or from an optional external power supply via an RJ-45 jack shared with audio output (pin 5 = +12 VDC input, 8 = GND) Power input requirements VLR 102 ������������������������������ +12 VDC, 0.25 A VLR 102SR �������������������������� +12 VDC, 0.
Reference Material, cont’d Specifications — VLP 102 Pendant Microphone Audio/acoustic and electrical Microphone type ��������������������������� Omnidirectional electret condenser Microphone gain ��������������������������� -6 dB to +6 dB, adjustable in 1 dB steps Audio input Number/signal type ��������������������� 1 mono, via integrated electret condenser microphone or 1 mono, unbalanced, via auxiliary mic input jack with 3.
Specifications — VLC 102 Charging Station External power supply ����������������� 110 VAC to 130 VAC, 50/60 Hz, external, 2 prong; to 5 VDC, 1 A, regulated 3.5 mm o.d. jack, center positive Power input requirements ����������� 5 VDC, 0.
Reference Material, cont’d Part Numbers and Accessories The following tables list the part numbers of the items included in the VoiceLift Microphone kits and of optional accessories that can be purchased.
Optional accessories The following items can be purchased from Extron for use with the VoiceLift Microphone.
PRELIMINARY Reference Material, cont’d A-8 VoiceLift™ Microphone • Reference Material
B Appendix B Firmware Updates Downloading a Firmware File Updating Firmware Using the Firmware Loader PRELIMINARY VoiceLift™ Microphone
Firmware Updates Updates to the VLR 102 receiver’s firmware are made available periodically via the Extron Web site. If the need arises, you can replace the receiver’s main firmware via an RS-232 connection without opening the unit or changing firmware chips. Downloading a Firmware File PRELIMINARY To obtain the latest version of VoiceLift Microphone firmware, 1. Visit the Extron Web site (www.extron.com) and click the Download tab. 2.
3. Follow the instructions on the Installation Wizard screens to install the Firmware Loader on your computer. The installer program places the Firmware Loader file, “FWLoader.exe” at c:\program Files\Extron\ FWLoader. (If the Extron and FWLoader folders do not yet exist in your Program Files folder, the installer creates them.) 4. Access the FWLoader.
Firmware Updates, cont’d 8. Click Upload. Messages appear on the firmware file selection window, indicating when the unit is uploading the firmware, then resetting itself. When the firmware upload process is completed, the message “Transfer Complete!” is displayed, and the new firmware version number appears in the Current Unit Information field. Click Exit to close the Firmware Loader. PRELIMINARY 9.
Extron’s Warranty Extron Electronics warrants this product against defects in materials and workmanship for a period of three years from the date of purchase.
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