Mitek WTSD MIX31 User Manual
WTSD-MIX31K
3x1 Mic / Line / BT / AUX Mixer
with Optional Dante® Audio
Network Interface
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WTSD-MIX31K
Owner’s Manual
Table of Contents
Introduction ........................................................................................................... 3
Key Features .......................................................................................................... 4
Applications ........................................................................................................... 4
Package Contents .................................................................................................. 4
WTSD-MIX31K Component Interface ................................................................... 5
Front Panel Description ......................................................................................... 6
Rear Panel Description .......................................................................................... 9
WTSD BUS Structure .......................................................................................... 10
WTSD-PWBOB Features ......................................................................................11
Using Commercial Grade Bluetooth .................................................................... 13
Sleep Mode Feature ............................................................................................ 15
Things To Consider Before Installation ................................................................ 16
Things To Be Careful Of During Installation ......................................................... 16
Choosing A WTSD Wall Mounting Method ......................................................... 17
Electrical Boxes and Rings .................................................................................. 18
Installing the Power Supply ................................................................................. 20
Installing the WTSD Indoors ................................................................................20
Installing the WTSD Outdoors .............................................................................20
Using the Optional WTSD-COVER Accessory ..................................................... 21
Installing Multiple WTSD Mixers On the Same BUS .......................................... 22
Using the WTSD-PWHUB Accessory .................................................................. 23
Connecting to WTSD To a Dante
WTSD Product Family ......................................................................................... 24
Optional Accessories ........................................................................................... 24
Specifications ...................................................................................................... 25
Block Diagram .....................................................................................................29
Dimensional Drawings ........................................................................................ 30
FCC Warning ........................................................................................................ 31
Warranty .............................................................................................................. 32
®
Network ........................................................ 23
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WTSD-MIX31K
Owner’s Manual
Introduction
Model WTSD-MIX31K is a 3x1 Mic / Line / Aux / Bluetooth analog mixer that features a
balanced microphone / line input and an auxiliary 3.5mm and Bluetooth summed input
with a balanced line output. The WTSD-MIX31K utilizes commercial grade Bluetooth
technology featuring ultra low noise levels, long range connectivity, no auto connect and
quick disconnect bump feature. Selection between mic or line level for the XLR input is
done via front panel switch. The high gain mic inputs incorporate user enabled Phantom
Power for condenser microphones and a 125Hz low cut filter to eliminate unwanted low
frequency interferences. A local mute button mutes output to the bus and a system
priority button can mute building wide BGM systems to isolate the room. An adjustable
VOX feature allows for AUX input background audio to be muted when announcing is
present. The AUX input is a stereo 3.5mm jack and is electronically summed to achieve
the best audio performance. Separate level controls for each input provide control for the
audio mix needed.
A basic WTSD system consists of four elements; a WTSD mixer, Cat5/6 cable, inline 24V
DC power supply and an end point break out board / hub. All four are included with the
purchase of a WTSD mixer except for the Cat5/6 cable. A 2-gang box is all that is needed
to complete an installation. There are two versions of the WTSD end points offered. The
WTSD-PWBOB comes with each unit and features a balanced audio output with signal,
mute, system priority and power LEDs and 12V DC logic output for remote system muting
or power sequencing. The WTSD-PWHUB is sold separately and features level control
at the system head end, input limiting, isolated relay outputs to trigger system priority
muting or system power activation, and an emergency mute port. The WTSD features an
energy saving auto sleep function that can shut off the audio system when not in use
after approximately 1 hour. As soon as the WTSD mixer senses an audio signal, the WTSD
sends a command down the bus to wake the system up.
The WTSD-MIX31K analog audio BUS can easily be converted to an Audinate Dante
digital signal by interfacing with the optional AtlasIED TSD-DAC2i converter. The WTSDs
are uniquely designed to fit into most 2-gang electrical boxes and utilize industry standard
Cat5/6 cable for power, control, and audio. The WTSDs deliver high quality audio hundreds
of feet by the use of a low noise / high gain preamp design and balanced audio bus. The
proprietary low voltage bus is designed so that up to 3 WTSD mixers can be daisy chained
on the same bus cable run while allowing for independent mixer operation. Each WTSD
incorporates separate level controls for each input, a local mute, system priority override
and an auto sleep function.
The optional WTSD-COVER stainless steel weather resistant locking security cover with
gaskets is available for tamper proof indoor or outdoor applications. The PCBs are weather
treated to reduce corrosion in damp environments. With the PCB treatment and the
WTSD-COVER accessory, the installation will have protection against the environment and
tamper protection for years of continuous operation.
®
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WTSD-MIX31K
Owner’s Manual
Key Features
• Indoor or Outdoor Use
• XLR Balanced Mic or Line Input with Level Control
• 3.5mm Stereo Actively Summed Input with Level Control
• Commercial Grade Bluetooth Input with Level Control
• Wall Plate Mounted, Fits Into Most 2-Gang Boxes
• Uses Industry Standard Cat5/6 Wire
• DC Bus with Peak Indicator
• High Gain Balanced Line Output for Long Distance Applications Up to 400ft
• 125Hz /12dB Low Cut Filter for Mic / Line
• Local Mute or VOX Mute
• Remote Trigger Output for Remote Amplifier Turn On
• System Priority Mute Function
• Input Signal & Peak Indicators
• Energy Saving Auto Sleep Mode
• Pairing Connect / Disconnect Switch
• WTSD-COVER Water Resistant Stainless Steel Locking Cover (Optional)
• WTSD-PWHUB Receiver with Limiter and Isolated Relays & Emergency Mute (Optional)
• TSD-DAC2i Analog to Dante® Digital Audio Transmitter (Optional)
Applications
• Indoor / Outdoor Sports Complexes
• Schools - Gymnasiums, Rally Areas
• Hotel Ballrooms
• Community Multi-use Facilities
• Industrial Facilities
Package Contents
• WTSD-MIX31K, Qty 1
• WTSD-PWBOB, Qty 1
• Inline Power Supply 24VDC 1A, Qty 1
• 6/32 x 1" Pan Head Screws, Qty 4
• RJ45 Shims, Qty 4
• Manual, Qty 1
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WTSD-MIX31K
Owner’s Manual
WTSD-MIX31K Component Interface
The WTSD-MIX31K connects to the WTSD-PWBOB via Cat5/6 cable. The 24VDC 1A
power supply connects to the WTSD-PWBOB. The WTSD-PWBOB connects to the
amplifier. Note: The max cable distance from WTSD-PWBOB to WTSD-MIX31K is 400ft.
The Cat5/6 cable is not included.
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Front Panel
WTSD-MIX31K
Owner’s Manual
8 13
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6
7
5
4
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2
1
1. Mounting Holes
Fits a 2-gang NEMA electrical box.
2. Active / Power Indicator
Illuminates blue when 24VDC is present.
3. Sleep Indicator
Illuminates yellow when no audio signal is sensed at the WTSD after 1 hour. Note: Each
WTSD sleep indicator operates independently. Refer to Sleep Mode Feature section for
details.
4. Mic / Line Input
Connects to balanced line or mic level sources via the XLR connection. For mic or line
input gain selection, press the Mic / Line mode switch. When the line-in indicator is
illuminating green the input will accept line level signals. Note: Unbalanced line inputs
can be inserted with proper wire configuration by connecting the Pin 1 (G) and Pin 3 (–)
terminals together.
5. Mic / Line Mode Switch
For mic or line input gain selection, press the Mic / Line mode switch. When the line-in
indicator is illuminating green the input will accept line level signals.
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WTSD-MIX31K
Owner’s Manual
6. Line Mode Indicator
When the line-in indicator is illuminating green the XLR input is in line mode.
7. Mic / Line Level
Adjust the level Mic / Line input signals. Turn clockwise to increase the signal level and
counter-clockwise to decrease it.
8. Mic / Line Input Signal Indicator
Illuminates green when the input signal strength reaches 25mV to verify a signal path.
Note: The LED will not illuminate if the input level is turned Off / fully counter-clockwise.
9. Music Input 3.5mm
Electronically sums unbalanced audio signals through stereo 3.5mm input connector. The
music level control is on the front panel. This input can be muted via the VOX adjustment
pot for priority paging applications. Note: The 3.5mm input will take priority over the
Bluetooth signal.
10. Bluetooth Music Connect / Disconnect Switch
Use this switch to pair a device, connect to a device or disconnect a device. Refer to the
Using Bluetooth Section for detailed usage information.
11. Bluetooth Status Indicator
This blue indicator has different modes to indicate the status of the Bluetooth connectivity.
Refer to the Using Bluetooth Section for detailed usage information.
12. Music Level
Adjust the level 3.5mm / Bluetooth input signals. Turn clockwise to increase the signal
level and counter-clockwise to decrease it.
13. Music Input Signal Indicator
Illuminates green when the input signal strength reaches 25mV to verify a signal path.
Note: The LED will not illuminate if the input level is turned Off / fully counter-clockwise.
14. Local Mute Switch
When the local mute switch is pressed, all local input signals will be muted and the local
mute indicator will illuminate red.
15. Local Mute Indicator
Illuminates red when the local mute switch is pressed. All local inputs signals will be
muted.
16. System Priority Switch
When the system priority switch is pressed, the system priority circuit is activated and
sends a command to the WTSD-PWBOB. The system priority port on the WTSD-PWBOB
will have 10V DC present to trigger a command on an external product such as muting or
turning an amplifier or power strip On or Off. Note: A relay is activated when using the
WTSD-PWHUB instead of the WTSD-PWBOB. Refer to the WTSD-PWHUB features for
more details.
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WTSD-MIX31K
Owner’s Manual
Front Panel
17. System Priority Indicator
Illuminates red when the system priority switch is pressed.
18. System Peak Indicator
Illuminates red when the input signal reaches 3dBV below when signal clipping will occur.
Occasional flashing is normal but if this indicator is continuously on, then reduce the input
level using the input level control on the front panel.
19. Bluetooth Antenna Cover
This cover protects the Bluetooth antenna. Do not push on this cover or damage may
occur.
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WTSD-MIX31K
Owner’s Manual
Rear Panel
1. RJ45 Input
“To WTSD, PWBOB, PWHUB” – Connect the Cat5/6 cable between the WTSD being
installed and a WTSD-PWBOB or WTSD-PWHUB. If there is more than one WTSD in the
same BUS loop, this port connects to the second WTSD “From” RJ45 port.
2. RJ45 Output
“From WTSD” – This port should only be connected to a second WTSD port label “To
WTSD”.
3. Configuration Switch
• DIP Switch 1 - Phantom - 24VDC Phantom Power applies power for condenser mic
operation to Mic input terminal. Up position is On.
• DIP Switch 2 - Mic PAD Disable - When in the up position the mic gain setting will be
the most sensitive. When the switch is in the down position, the 10dB pad is engaged.
• DIP Switch 3 - Mic HPF - Low Cut filter engages at 125Hz with a roll off rate of 12dB
per octave on the Mic / Line input. This filter operates either in the Line or Mic mode
and is available on input 1. Ideal for vocal microphones to reduce low frequency energy
and to increase intelligibility. Up position is on.
• DIP Switch 4 - Sleep Disable - When in the up position the sleep mode will not be
engaged. When in the down position and no audio is present for 1 hour, sleep mode
will be activated.
4. VOX Adjustment Potentiometer
Adjusts the sensitivity of the mute circuit for priority paging messages. Set fully
counter-clockwise to turn this function Off. Turn clockwise to increase the sensitivity of the
audio signal to trigger the music signal mute function.
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WTSD-MIX31K
WTSD BUS Structure
TO
TO
WTSD
WTSD
_______
_______
PWBOB
or MIX41
WTSD-MIX31
PWBOB
P1
P2
P1
P2
RJ45
CAT5 /6
Non-shiel ded
P3
P3
PWHUB
PWHUB
Owner’s Manual
P6P6
P6
P5P5
P7P7
P5
P4P4
P4
P7
P8P8
P8
RJ45
FROM
WTSD
++
P8P8
P8
++
P7P7
P7
++
P6P6
P6
P5P5
P5
++
++
P4P4
P4
P3
P3
P2
P2
P1
P1
BUFFER
BALANCED
P1
P1
P2
P2
P3
P3
P4P4
P4
P5P5
P5
P6P6
P6
P7P7
P7
P8P8
P8
AUDIO IN/OUT
++
++
++
++
++
WTSD-MIX31 or MIX41
TO
TO
P1
P1
P2
P2
P3
P3
P4P4
RJ45
or PWHUB
WTSD-PWBOB
P4
POWER SUPPLY +V
BALANCED AUDIO BUS -
BALANCED AUDIO BUS +
BALANCED AUDIO BUS GND
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P7P7
P7
P6P6
P6
P5P5
P5
AUTO SL EEP BUS
POWER SUPPLY GND
SYSTEM PRIORITY-VOX BUS
RJ45
WTSD
P8P8
P8
SYSTEM PEAK BUS
WTSD
_______
_______
PWBOB
PWHUB
PWBOB
PWHUB
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WTSD-MIX31K
Owner’s Manual
WTSD-PWBOB Features
The power break out box (PWBOB) is a DC power injector / trigger control / audio interface
module. Each WTSD kit comes with a WTSD-PWBOB. This module can be placed in an
equipment rack and connected to a WTSD via Cat5/6 cable. The PWBOB serves as the DC
power injector to power WTSDs. The PWBOB is also the audio interface between a power
amplifier, DSP or mixer. The indicators on the PWBOB are a useful visual guide to see the
status of a WTSD that may be located several hundred feet away from the PWBOB in the
equipment rack.
2 8 9 1110
5
6
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4
1
1. Power Supply Input
Connect 24V DC Input. Note: Pay attention to supply + & – polarity. The 24VDC 1A power
supply that comes with the kit will have the 2-position connector installed on the wires.
2. PWR Indicator
This power indicator will illuminate green when 24V DC power is present at the Power
Supply input.
3. RJ45 to WTSD Interface
Connect a Cat5/6 cable to a WTSD RJ45 input marked “TO WTSD – PWBOB, PWHUB”
4. Balanced Audio Output
This 3-position port provides a balanced audio output to connect to an audio mixer or
amplifier input. Follow the wiring information for system interface. For unbalanced signals
connect the (GND) and the (–) terminals together. A removable 3-position 3.5mm pitch
Euro / Phoenix connector is supplied.
5. SYS Peak Logic Port
This logic port will provide a minimum of +1VDC when any of the WTSD audio input
signals are too high and the system peak LED is illuminated. Connect this port to an
external VCA limiter for additional system protection.
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12
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