VADDIO EasyTalk User manual

©2012 Vaddio - All Rights Reserved. EasyTalk Wireless USB Mic System - Document Number 342-0442 Rev A
EasyTalk™ Wireless USB Mic System
Part Numbers:
999-8550-000 North America
999-8550-001 International
Installation and User Guide

EasyTalk Wireless Mic
EasyTalk Wireless USB Mic System - Document Number 342-0442 Rev A Page 2 of 16
TableofContents
Overview:................................................................................................................................................................... 3
Unpacking:................................................................................................................................................................. 4
Diagram: The Front Panel Controls:................................................................................................................... 4
Diagram: The Rear Panel Connections: ........................................................................................................... 5
Table: Dip Switch Settings and Descriptions .................................................................................................... 6
Diagram: Belt Pack Control Panel..................................................................................................................... 7
Belt Pack and Battery Compartment:..................................................................................................................... 8
Diagram: Belt Pack Views ................................................................................................................................. 8
Table: Belt Pack Dip Switch Settings: ............................................................................................................... 9
Belt Pack Configuration Settings: .......................................................................................................................... 9
Step by Step Instructions......................................................................................................................................... 10
Diagrams: Basic Configurations ...................................................................................................................... 11
Technical Specifications ...................................................................................................................................... 11
Compliance and CE Declaration of Conformity: .................................................................................................. 12
Warranty Information: .............................................................................................................................................. 13
Appendix 1: Pin-outs and Stuff ............................................................................................................................... 14
EasyTalk Audio User Serial Command Set: ........................................................................................................ 14
Table: Command Set ...................................................................................................................................... 14
Help Menu:........................................................................................................................................................... 15

EasyTalk Wireless Mic
EasyTalk Wireless USB Mic System - Document Number 342-0442 Rev A Page 3 of 16
Overview:
The EasyTalk Wireless USB Mic System
expands audio capabilities for live voice
reinforcement with its analog outputs or lecture
capture with its USB 2.0 digital audio output
plugged directly into a computer. Key features of
the EasyTalk Wireless Audio Interface include:
HD Wireless Link with Adaptive Frequency Hopping (AFH) for interference free operation.
USB Audio Output allowing connection to a PC for UC Soft-client Applications or Lecture Capture systems.
Rechargeable Belt Pack transmitter that features a lithium-ion battery pack for extended hours of operation.
The system consists of a Belt Pack Transmitter, Lavalier Microphone and Wireless Receiver. The EasyTalk
Wireless Receiver works in conjunction with the Belt Pack Transmitter and Lavalier Mic worn by the presenter to
send the presenter’s speech to the room’s audio reinforcement, system conferencing system or lecture recording
software. The wireless link uses Adaptive Frequency Hopping (AFH) technology supporting the transmission of
full bandwidth audio digitally to the receiver.
The receiver has a balanced or unbalanced line level output for connection to an amplifier, videoconferencing
codec or other room A/V equipment. In addition, the receiver has a USB audio output that can be directly
connected to a PC emulating a microphone and speaker device for use with Unified Communication clients such
as Skype®, Jabber®, Microsoft Lync® or Lecture Capture Systems like Panopto®, Tegrity® and others. Both the
USB audio and the analog audio can be used simultaneously. Front panel controls allow the user to mute or
adjust output volume level. The back-panel GPIO is used for volume and mute functions that can be wired to
external control systems.
The Belt Pack houses the 2.4 GHZ frequency hopping radio capable of transmitting full spectrum audio (20HZ to
20KHZ). Advanced radio protocols such as adaptive frequency hopping and forward error correction ensures
reliable communication and coexistence with other devices in the band. The Belt Pack includes a rechargeable
lithium-ion battery pack allowing extended operations. Charging is accomplished with a micro-USB power supply
or by simply plugging it directly into a USB port on a PC.
The EasyTalk Wireless USB Mic System incorporates user selectable digital signal processing (DSP) functions to
meet application requirements associated with the room. Functions include Automatic Gain Control, Speaker
Equalization, Compressor, and Microphone Filtering. Collectively, the EasyTalk Wireless USB Mic System adds
pristine sound quality to any audio or recording system.
Intended Use:
Before operating the device, please read the entire manual thoroughly. The system was designed, built and
tested for use indoors, and with the provided power supply and cabling. The use of a power supply other than the
one provided or outdoor operation has not been tested and could damage the device and/or create a potentially
unsafe operating condition
Important Safeguards:
Read and understand all instructions before using. Do not operate any device if it has been dropped or damaged.
In this case, a Vaddio technician must examine the product before operating. To reduce the risk of electric shock,
do not immerse in water or other liquids and avoid extremely humid conditions.
Save These Instructions:
The information contained in this manual will help you install and operate your product. If these instructions are
misplaced, Vaddio keeps copies of Specifications, Installation and User Guides and most pertinent product
drawings for the Vaddio product line on the Vaddio website. These documents can be downloaded from
www.vaddio.com free of charge.
Use only the power supply provided with the system. Use of any unauthorized power
supply or extending the DC side of the power supplies will void any and all warranties.

EasyTalk Wireless Mic
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Unpacking:
Carefully remove all of the parts for the EasyTalk Wireless USB Mic System from the packaging.
999-8550-000 for North America includes:
One (1) 998-8550-000 EasyTalk Wireless Receiver
Two (2) Rack Ears for Rack Mounting the Receiver
One (1) 2.39GHZ-2.51GHz ½-Wave, 3.5” RP-SMA Right Angle, Antenna
12 VDC, 1.0 Amp PowerRite™ Power Supply with North American Power Cord
One (1) 6’ (1.83m) USB 2.0 Cable Type A-Male to Type B-Male
One (1) EasyTalk Belt Pack Transmitter with Rechargeable Lithium-ion battery and attached belt clip
One (1) 1” (1/4 wave) RP-SMA straight antenna for the Belt Pack Transmitter
One (1) 5 VDC Micro-USB Charger for North America
One(1) UB 2.0 Charger Cable Type A-Male to Micro-B-Male
AT (audio-technica) Unidirectional Lavalier Condenser Mic terminated with 5-pin XLR
Mic Windscreen and Clothing Clip Included
Manual (Installation and User Guide)
999-8550-001 for International use includes:
One (1) 998-8550-000 EasyTalk Wireless Receiver
Two (2) Rack Ears for Rack Mounting the Receiver
One (1) 2.39GHZ-2.51GHz ½-Wave, 3.5” RP-SMA Right Angle, Antenna
12 VDC, 1.0 Amp PowerRite Power Supply
One (1) Euro Power Cord
One (1) UK Power Cord
One (1) 6’ (1.83m) USB 2.0 Cable Type A-Male to Type B-Male
One (1) EasyTalk Belt Pack Transmitter with Rechargeable Lithium-ion battery and attached belt clip
One (1) 1” (1/4 wave) RP-SMA straight antenna for the Belt Pack Transmitter
One (1) 5 VDC USB Charging Supply for Europe
One (1) 5 VDC USB Charging Supply for UK
One (1) USB 2.0 Charger Cable Type A-Male to Micro-B-Male
AT (audio-technica) Unidirectional Lavalier Condenser Mic terminated with 5-pin XLR
Mic Windscreen and Clothing Clip Included
Manual (Installation and User Guide)
Diagram: The Front Panel Controls:
1) Power ON/OFF: This switch turns the power for the EasyTalk Wireless Receiver on or off. When the
button’s blue LED is lit, the system is on ready for operation.
2) Pair: This button initiates the automatic pairing for the Belt Pack Radio Transmitter and the Wireless Audio
Receiver. Pairing is the matching of the same AFH sequence for both devices.
3) Mute: This control mutes (turns off) the audio outputs of the EasyTalk Wireless Receiver.
①②③ ④ ⑤⑥ ⑦

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4) Volume: The + (plus) and – (minus) buttons are used to raise and lower the audio outputs (Balanced and
Unbalanced) from the EasyTalk Wireless Receiver.
5) Audio Level: This LED display ladder will indicate the relative audio level output (from all sources) of the
EasyTalk Wireless Receiver. The red line at the top of the display indicates clipping.
6) Radio, EQ Filter and Compressor Status LED’s:
Radio LED: Solid blue light indicates normal operation. Fast flashing indicates no link established with the
Belt Pack Wireless Microphone. Slow flashing indicates the Pairing cycle is in progress.
EQ Filter: Blue light on indicates the EQ Filter is turned on. Blue light off indicates the EQ Filter is off. When
EQ Filter is enabled, it helps increase speaker intelligibility for voice applications.
Compressor: Solid blue indicates that the Compressor is on. No light indicates that the Compressor is off.
The Compressor minimizes the potential of “clipping” by attenuating the audio signals that exceed the
maximum input.
7) Antenna: The antenna is tuned to receive 2.4 GHZ signals from the IR Lanyard Belt Pack Microphone.
Note: If the EasyTalk Wireless Receiver is installed deep inside a metal equipment rack or is surrounded by
other metal cased equipment, the antenna may need to be extended away from the rack to improve
reception.
Diagram: The Rear Panel Connections:
1) 12 VDC, 1.0 Amp Power Connector: The 5.5mm OD and 2.5mm ID coaxial power connector should be
plugged into the PowerRite power supply provided by Vaddio. Use of any unauthorized power supplies will
void any and all warranties.
2) RS-232 Control: The DE-9 female (DB-9 for conventionalists) connector is provided for 3rd party control
systems using the Wireless Audio Interface Application Protocol Interface (API). See the Command List in
Appendix A.
3) Settings (8-Position Dip Switch): The eight position dip switch is used for system configuration of the
EasyTalk Wireless Receiver (see next page for table).
4) GPIO Port: The GPIO Port provides the ability to interface with
external control systems. Inputs are logic level low. The outputs
are open collectors.
5) USB Type B Connector: This connector is used to interface with the Host PC for soft-client codec type
applications.
6) Audio Outputs: There are two (2) Audio Outputs on the rear panel:
Balanced Audio Output Jack: Balanced Line Level (on XLR - M connector) +4dBu
Unbalanced Audio Output Jack: Unbalanced Line Level (on RCA-F connector) -10dbV
Pin Function
1 Power (12 VDC)
2 Mute Toggle (Input)
3 Mute Status (Output)
4 Volume Up (Input)
5 Volume Down (Output)
6 Not Used
7 Ground
①②③ ④ ⑤⑥⑦

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Table: Dip Switch Settings and Descriptions
Dip Switch 1 - Compressor: Enable adds a Dynamic Range Compressor for the Audio Line Level Outputs
(balanced or unbalanced). Disable turns it off.
Dip Switch 2 - Speaker EQ Filter: Enable adds a specialized output filter for improved intelligibility for voice
applications. Disable turns it off.
Dip Switch 3 - ON Position/USB Conference Mode: Enable (Dip Switch 3 On) creates the desired audio
mixing (Near and Far ends) for USB conferencing applications such as Skype, Jabber, Lync etc… In the USB
Conference Mode, the PC USB Speaker Audio is sent to the balanced and unbalanced audio line outputs,
which allows the Far End Audio to be presented in the room. The Belt Pack Wireless Microphone Audio is
also sent to the PC and the Far End. The EasyTalk Wireless Receiver will also be recognized as a USB
Audio Device by the PC with recording (the Belt Pack Wireless Microphone Audio) and playback (the Speaker
Audio) capabilities. Disable turns the USB Conference Mode off.
Dip Switch 3 - OFF Position/USB Record Mode: Disable (Dip Switch 3 Off) creates a USB Record Mode
for PC Audio Recording (PC requires Audio Recording Software-not included) and Playback through the USB
port (Audio output through the Balanced or Unbalanced Audio Line Outputs). The EasyTalk Wireless
Receiver will be recognized as a USB Audio Device by the PC with recording (the Belt Pack Wireless
Microphone Audio) and playback (the Speaker Audio) capabilities.
Dip Switch 4 - Radio ON/OFF: ON enables the Radio Receiver for the Wireless Microphone. OFF turns it
off, naturally.
Dip Switch 5 - Baud Rate Selection ON/OFF: OFF sets the Baud Rate to the default 9600bps. ON sets the
Baud Rate to 38400bps. For most applications 9600bps will do.
Dip Switch 6 - Front Panel Buttons Lock ON/OFF: ON locks the Front Panel Buttons and disables the
buttons from functioning. OFF allows the front panel buttons to be used.
Dip Switch 7 - Software Control ON/OFF: When ON, dip switches 1, 2, 3, 4, and 8 are ignored to allow full
serial control of the audio interface.
Dip Switch 8 - Resets to Factory Defaults ON/OFF: When ON and power is plugged in, the interface is set
to factory defaults. Leave OFF for normal operation.
Dip Switch # Function
1 ON/OFF - Enable/Disable - Compressor for the Balanced and Unbalanced Audio Outputs
2 ON/OFF - Enable/Disable - Speaker EQ Filter
3 ON/OFF - USB Conference Mode (Skype-type PC applications)
4 ON/OFF - ON Enables Radio, OFF Disables Radio
5 ON/OFF - Baud Rate Selection: 9600-Off/38.4K-On (Use 9600bps for most all applications)
6 ON/OFF - Front Panel Locked Out when ON
7 ON/OFF - ON allows full Serial control bypassing dip switches 1, 2, 3, 4, and 8
8 Not Used

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EasyTalk Wireless USB Mic System - Document Number 342-0442 Rev A Page 7 of 16
Diagram: Belt Pack Control Panel
1) Lav Mic Cable Connector (5-pin mini XLR - M): Plug the cable attached to the Lanyard into the 5-pin mini
XLR connector.
2) Radio: This LED indicates an active radio link with the EasyTalk Wireless Receiver. Solid blue LED indicates
connection with the EasyTALK Wireless Receiver. Flashing blue LED indicates radio link has been lost.
Note: Radio link operates up to 100 feet line of sight from the Belt Pack Transmitter to the EasyTalk
Wireless Receiver.
3) System Power: To use the Belt Pack or IR Lanyard, turn the SYSTEM POWER switch to the on position and
the LED will illuminate. Be sure to turn off the SYSTEM POWER switch when the system is not in use to
save the battery life. The rechargeable lithium-ion battery pack provides up to ten (10) hours with full charge.
It is highly recommended that the Rechargeable Lithium Ion Battery Pack be fully charged prior to
using the Belt Pack for the first time!
4) Microphone ON/OFF: This switch turns the wireless microphone on or off at the Belt Pack allowing the
presenter to use an existing room system microphone instead, or for momentary microphone muting.
Note: The System Status light on the EasyTalk Wireless Receiver will light if the microphone signal
is detected. If the Microphone is turned off at the Belt Pack, the System Status light will not light.
5) 1” ¼-Wave Antenna: Used to transmit the wireless microphone audio back to the EasyTalk Wireless
Receiver.
①
②③ ④
⑤

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Belt Pack and Battery Compartment:
Diagram: Belt Pack Views
1) Removable Battery Compartment Cover: To open, carefully press down at the top of the removable battery
cover near the center of the small opening and slide the cover downward. To replace the removable battery
cover, start sliding the cover on at the bottom of the battery pack compartment and slide cover upward to the
top to the small opening until the cover latches in place.
2) Micro-B USB Charging Port: The Belt Pack rechargeable battery can be charged by the micro-B USB
connector on the bottom side of the belt pack enclosure. A USB charger is included with the Belt Pack. The
Belt Pack can also be recharged by using a micro-B USB to USB adapter which can be connected to a PC or
Laptop USB port for recharging. Use only the charging power supply provided.
3) Dip Switches: There are two (2) 4-position dip switches located on the circuit board, SW4 and SW5. They
provide configuration settings for Microphone Gain Control, Filtering, Compression and Microphone Filtering
and Pairing of the Wireless Belt Pack to the EasyTalk Wireless Receiver.
4) Rechargeable Lithium-Ion Battery: The battery is housed and attached inside the Battery Compartment and
under normal use should last up to ten (10) hours when fully charged.
5) Battery Indicator LED: The Battery Indicator LED is located on the bottom of the Belt Pack.
a. When the USB charger is not connected to the Belt Pack: The Battery Indicator LED will be off
when battery power is adequate for the Belt Pack. The Battery Indicator LED will blink red indicating
that the battery power is low and needs to be recharged soon.
b. When the USB charger is connected to the Belt Pack: The Battery Indicator LED will be yellow
when the battery is charging. The Battery Indicator LED will be green when the battery is fully
charged. Average charging time from dead battery to full charge is 10 hours.
6) Radio Pairing Button SW3: Push this button in conjunction with the Pairing button on the front panel of the
Optional Wireless Receiver to “pair” the transmitting Belt Pack with the Receiver.
①
③
④
②
⑤
⑥

EasyTalk Wireless Mic
EasyTalk Wireless USB Mic System - Document Number 342-0442 Rev A Page 9 of 16
Table: Belt Pack Dip Switch Settings:
Belt Pack Configuration Settings:
The Belt Pack has a number of custom settings that can be enabled or disabled for specific applications. These
settings can be applied by activating dip switch settings on the two (2) 4-position dip switches SW4 and SW5
located on the Belt Pack Circuit Board.
Switch Set 4 (SW4):
Dip Switch 1: Not Used
Dip Switch 2 - IR Transmitter: ON enables the IR Transmitter LEDs in the IR Lanyard. OFF disables the IR
Transmitters in the Lanyard and the camera tracking will not function.
Dip Switch 3 - Radio in Belt Pack: ON enables the Radio circuit in the Belt Pack. OFF disables the Radio
circuit.
Dip Switch 4 - Clear Pairing: ON clears the pairing setting of the receiver in the Belt Pack.
.
Switch Set 5 (SW5):
Dip Switch 1: Gain, Enable adds a three (3) dB gain to the microphone audio. Disable provides zero gain.
Dip Switch 2: Gain, Enable adds a six (6) dB gain to the microphone audio. Disable provides zero gain.
Dip Switch 3: Gain, Enable adds a nine (9) dB gain to the microphone audio. Disable provides zero gain.
Note: The following Gain Boost Switches, 1 through 3, can be used individually or in
combination. For example, if Dip Switch 1, 3dB Gain and Dip Switch 2, 6dB Gain are both ON,
they will add a total of 9 dB of gain
Dip Switch 4: Automatic Gain Control ON enables an Automatic Gain Control function that maintains a
constant audio level to regulate soft talkers as well as loud talkers. OFF disables the Automatic Gain
Control, of course.
Switch
Number Dip Switch Function
Switch Set 4 (SW4)
1 Not Used
2 ON/OFF - IR LED’s in Lanyard
3 ON/OFF - Radio in Belt Pack *Turn off when not
using Optional EasyTalk Wireless Receiver
4 Clear Pairing (pairing is required for proper operation)
Switch Set 5 (SW5)
1 ON/OFF: ON adds 3dB Gain Boost on Microphone
2 ON/OFF: ON adds 6dB Gain Boost on Microphone
3 ON/OFF: ON adds 9dB Gain Boost on Microphone
4 ON/OFF: Automatic Gain Control Mode
SW3
SW4
SW5

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EasyTalk Wireless USB Mic System - Document Number 342-0442 Rev A Page 10 of 16
SW3
SW4
SW5
Step by Step Instructions
For setting up the EasyTalk Wireless Mic System:
Step 1: Review the manual to eliminate any and all surprises.
Step 2: Connect the 3.5” right-angle RP-SMA antenna to the front of the receiver and connect the power supply.
Step 3: Connect the audio outputs (Balanced, Unbalanced or
USB) to the audio system (not included). Set all audio levels on
the audio system low to avoid any rude awakenings.
Step 4: On the Belt Pack, plug in the lavalier mic using the 5-
pin XLR connector and turn the System Power and the
Microphone switches to the ON position.
Step 5: Touch the Power button on the EasyTalk Wireless
Receiver Audio and the back-lit blue LED power switch will
illuminate.
Step 6: To “Pair” the Belt Pack with the Receiver, carefully press
down at the top of the removable battery cover near the center of
the small opening and slide the cover downward. Switch #3,
marked SW3 on the circuit board next to the battery is the pairing
button (see figure on the right).
Place the Belt Pack in close proximity to the EasyTalk Wireless
Receiver.
Press the SW3 button and release. The Radio LED on the Belt
Pack front panel will begin blinking at a slow rate.
Press the Pair Button on the front panel of the EasyTalk
Wireless Receiver.
The Belt Pack and the EasyTalk Wireless Receiver will
automatically sync with each other. The blue Radio LED’s on
the Belt Pack and the EasyTalk Wireless Receiver front panels
will illuminate solid blue indicating they are paired and ready for
operation
Important Note: The Pairing button on the EasyTalk Wireless Receiver must be pushed within ten (10)
seconds of pressing the pairing button SW3 on the Belt Pack or pairing will not occur.
Step 7:
To replace the removable battery cover, start sliding the cover on at the bottom of the battery pack compartment
and slide cover upward to the top of the small opening until the cover latches back into place.
Step 10: Adjust the volume by using the + (plus) and – (minus) buttons on the front panel of the Wireless
Receiver and set the audio levels on the audio system to taste. The LED ladder will act as an LED meter and as
a way to set the levels when the volume buttons are touched and held. Test the mic ON/OFF switch on the Belt
Pack and also the Mic Mute switch on the Audio Interface for proper operation.
Step 11:
Set the Dip Switches on the Back Panel of the Audio Receiver and on the inside of the Belt Pack for the
requirements of the application.
Other Notes:
If the System Power LED on the Belt Pack flashes, then the battery is low and a battery charge is required.
Power and Mic
Switches

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EasyTalk Wireless USB Mic System - Document Number 342-0442 Rev A Page 11 of 16
Diagrams: Basic Configurations
Technical Specifications
EasyTalk Wireless USB Mic System
Part Numbers EasyTalk Wireless USB Mic System 999-8550-000 (North America)
EasyTalk Wireless USB Mic System 999-8550-001 (International)
Audio Specifications Frequency Respones:20 HZ to 20KHZ
Dynamic Range: >75dB
THD + Noise: <.02%
Analog Line Output Connector: XLR (Balanced) & RCA (Unbalanced)
Impedance: 50 ohm (Balanced) & 10Kohm (Unbalanced)
Nominal Level: +4dBu (Balanced) & -10dBu (Unbalanced)
USB Audio Interface Connector: Type B Male
Type: USB 2.0 Compliant
PC Controls: Mute & Volume
Microphone Type: Unidirectional Condenser Microphone
Frequency Response: 100HZ to 12KHZ
Max Input Level: 115dB SPL
Radio Link Type: Adaptive Frequency Hopping
Frequency Range: 2400 to 2483
Antenna: Monopole
Maximum Power Output: 5dBm
Receiver Sensitivity: -83dBm
Audio Processing
Settings 8-Position Dip Switch for Compressor, Speaker EQ Filter, Mix Mode
User Controls Power Button, Volume Up/Down, Microphone Mute, Pairing Button, LED Indicators, VU Meter
GPIO Inputs: Mute Control, Volume Up, Volume Down (Active Logic Low)
Outputs: Mute Status
Belt Pack Battery Type:4400mAH Lithium-Ion
Typical Talk Time : > 18 hours
Typical Full-Charge Time: @ 9 hours (from dead battery)
Receiver Power Supply Connector: 5.5mm OD X 2.5mm ID coax receptacle
Supply: 12 VDC, 1.0 Amp
Serial Control Protocol RS-232 (Firmware Updates & ASCII Control)
General Information
Operating Temperature 32° to 104° F (0° to 40° C)
Power Consumption Maximum 12 watts
Dimensions (H x W x D) 1.72” (43.68mm) H X 18.93” (480.82mm) W X 6” (152.4mm) D with rack ears attached
Weight 3.3 lbs. (1.5 kg)
EasyTalk Belt Pack
Transmitter, Lav Mic
and Cable
HD-USB Camera
(Not included)
Leer Jet
(Not included)
EasyTalk Wireless
Receiver
Audio System
(Not included)
USB 2.0 Audio
UAC Drivers
USB 2.0 Video
UVC Drivers
Mixer
BA Speakers
x 2
Power Amp
Balanced Line Level Audio Out
Computer
(
Not included
)

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EasyTalk Wireless USB Mic System - Document Number 342-0442 Rev A Page 12 of 16
Compliance and CE Declaration of Conformity: EasyTalk Wireless Receiver and Belt Pack Transmitter
Compliance testing was performed to the following regulations:
FCC Part 15 Subpart B
FCC Part 15, Subpart C Section 15.247 Class A
FCC Part 15, Subpart C Section 15.207 Class A
Industry Canada RSS-210 Issue 8 ClassA
Industry Canada RSS-Gen Issue 3 Class A
IEC 60950-1/A1: 2009 Safety
ETSI EN 300 328 V1.7.1 ClassA
EN 55022 A: 2010 (CISPR 22, 2008, Modified) Class A
ICES-003, Issue 4: 2004 Class A
EN 55022 A: 2010 Class A
AS/NZS CISPR 22: 2009 +A1:2010 Class A
VCCI V-3/2011.04 ClassA
EMC Directive 2004/108/EC ClassA
FCC Part 15 Subpart B, Subpart C, Section 15.249 Compliance and Industry Canada RS-210 Compliance
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15, Subpart C of the
FCC Rules and RS-210 of Industry Canada. These limits are designed to provide reasonable protection against harmful interference
when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy
and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct
the interference at his/her own expense.
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.
Changes or modifications not expressly approved by Vaddio can affect emission compliance and could void the user’s authority to
operate this equipment.
Do not use any antenna other than the one provided on the unit.
This equipment complies with the FCC/IC radiation exposure limits set forth for portable transmitting devices operating in an uncontrolled
environment. End users must follow the specific operating instructions for satisfying RF exposure compliance
ICES-003 Compliance
ICES-003, Issue 4: 2004
This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus set out in the Radio Interference
Regulations of the Canadian Department of Communications.
Le présent appareil numérique n’emet pas de bruits radioélectriques dépassant les limites applicables aux appareils numeriques de la classe
B préscrites dans le Règlement sur le brouillage radioélectrique édicte par le ministère des Communications du Canada.
European Compliance
This product has been evaluated for Electromagnetic Compatibility under the EMC Directive for Emissions and Immunity and meets the
requirements for a Class A digital device. In a domestic environment this product may cause radio interference in which case the user may be
required to take adequate measures.
Standard(s) To Which Conformity Is Declared:
EMC Directive 2004/108/EC
EN 55024: 2010
EN 61000-4-2: 2009
EN 61000-4-3: 2006 + Amendments A1: 2008 + A2: 2010
EN 61000-4-4: 2004 + Corrigendum 2006
EN 61000-4-5: 2006
EN 61000-4-6: 2009
EN 61000-4-8: 2010
EN 61000-4-11 Second Edition: 2004
Radio and Telecommunications Terminal Equipment Directive 1999/5/EC
ETSI EN 301 489-17 V2.1.1: 2009 referencing ETSI EN 301 489-1 V1.2.1: 2008
EN 61000-4-2: 2009
EN 61000-4-3: 2006 + Amendments A1: 2008 + A2: 2010
EN 61000-4-4: 2004 + Corrigendum 2006
EN 61000-4-5: 2006
EN 61000-4-6: 2009
EN 61000-4-11 Second Edition: 2004
ISO 7637-2 Second Edition: 2004 + Amendment A1: 2008 - Test not applicable for base station equipment

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Warranty Information: (See Vaddio Warranty, Service and Return Policies posted on vaddio.com for complete details):
Hardware* Warranty: One year limited warranty on all parts. Vaddio warrants this product against defects in materials and
workmanship for a period of one year from the day of purchase from Vaddio. If Vaddio receives notice of such defects during
the warranty period, they will, at their option, repair or replace products that prove to be defective. Please see Vaddio’s
Service Terms and Conditions at vaddio.com for specific details and policies.
Exclusions: The above warranty shall not apply to defects resulting from: improper or inadequate maintenance by the
customer, customer applied software or interfacing, unauthorized modifications or misuse, operation outside the normal
environmental specifications for the product, use of the incorrect power supply, improper installation (plugging things in
wrong), improper extension of the power supply cable or improper site operation and maintenance.
Vaddio Customer Service: Vaddio will test, repair, or replace the product or products without charge if the unit is under
warranty and is found to be defective. If the product is out of warranty, Vaddio will test then repair the product or products. The
cost of parts and labor charge will be estimated by a technician and confirmed by the customer prior to repair. All components
must be returned for testing as a complete unit. Vaddio will not accept responsibility for shipment after it has left the premises.
Vaddio will only advance replace out of box failures or random equipment failures up to 30 days after the purchase date (not
the install date).
Vaddio Technical Support: Vaddio technicians will determine and discuss with the customer the criteria for repair costs
and/or replacement. Vaddio Technical Support can be contacted through one of the following resources: e-mail support at
[email protected] or online at www.vaddio.com.
Return Material Authorization (RMA) Number: Before returning a product for repair or replacement, request an RMA from
Vaddio’s technical support. Provide a technician with a return phone number, e-mail address, shipping address, and product
serial numbers and describe the reason for repairs or returns as well as the date of purchase and proof of purchase. Include
your assigned RMA number in all correspondence with Vaddio. Write your assigned RMA number on the clearly on the
shipping label when returning the product. All products returned for credit are subject to a restocking charge without
exception.
Voided Warranty: The warranty does not apply if the original serial number has been removed or if the product has been
disassembled or damaged through misuse, accident, modifications, or unauthorized repair. Cutting the power supply cable on
the secondary side (low voltage side) to extend the power to the device (camera or controller) voids the warranty for that
device.
Shipping and Handling: Vaddio will not pay for inbound shipping transportation or insurance charges or accept any
responsibility for laws and ordinances from inbound transit. Vaddio will pay for outbound shipping, transportation, and
insurance charges for all items under warranty but will not assume responsibility for loss and/or damage by the outbound
freight carrier. If the return shipment appears damaged, retain the original boxes and packing material for inspection
by the carrier. Contact your carrier immediately.
Products Not Under Warranty: Payment arrangements are required before outbound shipment for all out of warranty
products.
*Vaddio manufactures its hardware products from parts and components that are new or equivalent to new in accordance with industry standard practices.
Other General Information:
Care and Cleaning
Do not attempt to take this product apart at any time. There are no user-serviceable components inside.
Do not spill liquids in the product
Keep this device away from food and liquid
For smears or smudges on the product, wipe with a clean, soft cloth
Do not use any abrasive chemicals.
Operating and Storage Conditions:
Do not store or operate the device under the following conditions:
Temperatures above 40°C (104°F) or temperatures below 0°C (32°F)
High humidity, condensing or wet environments
In inclement weather
In costal estuaries, dry river beds, shooting ranges or house boats
Dry environments with an excess of static discharge
Under severe vibration

EasyTalk Wireless Mic
EasyTalk Wireless USB Mic System - Document Number 342-0442 Rev A Page 14 of 16
Appendix 1: Pin-outs and Stuff
RS-232 Control: DE-9 Female (DB-9 for convention):
Communication Specification
Communication Speed: 9600 bps or 38,400
Stop bit: 1
Data bits: 8
Parity: None
No Flow Control
Control Port - RS-232 on DE-9 Female Connector
PIN# Signal
2) TXD
3) RXD
5) GND
All other pins - Unused
EasyTalk Audio User Serial Command Set:
The EasyTalk Wireless Receiver has an RS-232 command interface for configuration and real-time control. This
interface can be used interactively with a serial terminal emulator, or through a scripted interface without terminal
emulation (command echo and prompt). DIP switch 7 on the Receiver unit controls whether configuration
commands are enabled on the serial interface (switch in the up position), or whether the configuration is
controlled exclusively from the DIP switches (switch in the down position). Real-time control commands are
always available over the serial port.
Command echo and prompt can be enabled or disabled with the 6121 command. When enabled, commands
input to the receiver are echoed back, and a '>' prompt character is output whenever a carriage return is entered.
When disabled the echo and prompt characters are suppressed.
For all commands, the termination character is a carriage return (hex 0D). Response strings output by the
Receiver will end with both a carriage return and a line feed (hex 0A). Input line feed characters are ignored.
“Set” commands return one of three responses: OK (4100), bad command (4199), or bad parameter (4198).
“Get” commands return a response string indicating the command being responded to and the data requested.
The format of a “get” response is a 4-digit response code, a space, and a two-digit hex value.
Table: Command Set
Command
Response Argument Available w/ DIP 7 Down Description
5101 none Y Get mute status
4101 00 – off n/a Mute status response
01 – on
5102 none Y Get volume
4102 nn Volume response where nn is:
FB : -5 dB
FC : -4 dB
…
FF : -1 dB
00 : 0 dB
…
29 : 29 dB
5110 none Y Get compressor enabled
4110 00 – disabled n/a Compressor enabled response
01 – enabled
5111 none Y Get filter enabled
4111 00 – disabled n/a Filter enabled response
01 – enabled

EasyTalk Wireless Mic
EasyTalk Wireless USB Mic System - Document Number 342-0442 Rev A Page 15 of 16
Command
Response Argument Available w/ DIP 7 Down Description
5112 none Y Get mixer enabled
4112 00 – disabled n/a Mixer enabled response
01 – enabled
5113 none Y Get radio enabled
4113 00 – disabled n/a Radio enabled response
01 – enabled
5120 none Y Get power enabled
4120 00 – disabled n/a Power enabled response
01 – enabled
6101 00 – off Y Set mute on or off
01 – on
6102 00 – down Y Adjust volume by +1dB or -1dB
01 – up
6110 00 – disabled N Enable/disable compressor
01 – enabled
6111 00 - disabled N Enable/disable filter
01 – enabled
6112 00 – disabled N Enable/disable USB mix
01 – enabled
6113 00 – disabled N Enable/disable radio
01 – enabled
6114 01 N Reset to factory default settings
6120 00 – off Y Power on/off
6121 00 – disabled Y Enable/disable command echo and prompt
01 – enabled
4100 none n/a Command complete response
4198 none n/a Invalid argument response
4199 none n/a Invalid command response
Help Menu:
Using a terminal emulator, on the prompt line enter ? followed by a carriage return and the Help Menu will be displayed (see
below).
? - This Menu
EasyTalk Wireless Receiver V01.00.0X
Compiled: 12-Apr-12 at 15:38:51
Commands:
5101 - Get mute status (00-off, 01-on)
5102 - Get volume (-16, 0 dB, 2-digit hex value: f0 is -16, f1 is -15, ff is -1, 00 is 0)
5110 - Get DRC enabled (00-disabled, 01-enabled)
5111 - Get EQ filter enabled (00-disabled, 01-enabled)
5112 - Get USB mix enabled (00-disabled, 01-enabled)
5113 - Get radio enabled (00-disabled, 01-enabled)
5120 - Get power on (00-off, 1-on)
6101 xx - Set mute status (xx: 00-off, 01-on)
6102 xx - Adjust volume 1dB (xx: 00-down, 01-up)
6110 xx - Enable DRC (xx: 00-disable, 00-enable)
6111 xx - Enable EQ filter (xx: 00-disable, 01-enable)
6112 xx - Enable USB mix (xx: 00-disable, 01-enable)
6113 xx - Enable radio (xx: 00-disable, 01-enable)
6114 xx - Enable factory defaults (x: 00-disable, 01-enable)
6120 xx - Power (xx: 00-off, 01-on)
6121 xx - Enable serial echo (xx: 00-off, 01-on)
? - Print command list
NOTE: commands 611x available only if DIP 7 up
Reponses:
4199 - Unknown command
4198 - Invalid argument
41xx yy - Successful get (5xxx), xx matches command, yy is returned value
4100 - Successful set (6xxx)

EasyTalk Wireless Mic
EasyTalk Wireless USB Mic System - Document Number 342-0442 Rev A Page 16 of 16
9433 Science Center Drive, Minneapolis, MN 55428
Toll Free: 800-572-2011 ▪Phone: [phone] ▪FAX: [phone]
www.vaddio.com
©2012 Vaddio - All Rights Reserved. Reproduction in whole or in part without written permission is prohibited. Specifications and pricing are
subject to change without notice. Vaddio and EasyTalk are trademarks of Vaddio. All other trademarks are property of their respective owners.
Document 342-0442 Rev. A