Williams Sound MOD 232 User Manual

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232 MOD Model Modulator Infrared Channel Two

Two Channel Infrared Modulator • Model MOD 232

D

Description:

The MOD 232 Modulator is designed to operate with a TX9 emitter operating on 2.3/2.8/3.3/3.8 MHz frequency. Each microprocessor controlled MOD 232 modulator can handle up to two audio channels. Baseband outputs can daisy-chaintwo MOD 232 together forfour-channeloperation. Flexible combination jacks permit balanced/unbalancedline-levelinputs. Carrier frequencies are controlled by the microprocessor and a frequency synthesizer forrock-solidfrequency control.

Applications:

• Churches • Schools • Auditoriums • Conference Rooms • Theaters

MOD 232 Modulator:

Size, Weight:

Color:

Rack Mount:

Power Supply:

Modulation:

Carrier Frequency:

Signal-to-NoiseRatio:

Frequency Response:

Total Harmonic Distortion:

Audio Processing:

Auto Carrier Shut-Off:

MOD 232 Front Panel:

8.5" W x 8.2" D x 1.7" H (21.5 cm x 20.8 cm x 4.4 cm), 3.1 lbs (1.5 kg)

Black epoxy paint with white legends

1/2 rack space wide, 1 rack space high, one or two modulators may be mounted in a single IEC rack space with RPK 005 (single) or RPK 006 (double) Rack Mount Kits

Wall Transformer, 24 VAC, 50-60Hz, 15VA

North America:

TFP 016, UL/CSA

Europe:

TFP 027-01,

2-pinSchuko plug, CE

UK:

TFP 027-02,

3-pinUK plug, CE

FM Wideband, +50 kHz deviation, 50 uS pre-emphasis

Channel A: Selectable, 2.3/2.8/3.3/3.8 MHz,

Channel B: Selectable, 2.3/2.8/3.3/3.8 MHz

More than 60dB

30 to 16,000 Hz, +1 dB, -3dB, electrical response

Less than 2%, electrical response

Compression (slope) adjustable from 1:1 to 4:1

Switchable compression gain: Moderate: 16dB. Max: 33dB

15-minutetimer shuts off carrier when no audio is present (can be disabled)

Two Channel Infrared System Modulator

 

 

 

 

 

 

 

Williams Sound

Microprocessor Controlled

 

 

+9

3.8

 

 

 

 

 

+9

3.8

 

Inputs Mixed

Frequency Synthesized

 

 

 

 

 

 

 

 

 

 

5 6

 

+6

 

 

 

5

 

 

+6

 

 

Phones

 

4

 

+3

3.3

Compress

4

6

 

+3

3.3

Compress

 

3

 

7

0

 

 

3

 

 

7

0

 

 

Stereo

 

 

- 3

2.8

 

 

 

- 3

2.8

 

Power

2

 

8

-6

 

 

2

 

 

8

-6

 

 

 

 

-9

2.3

 

 

 

-9

2.3

 

CH A

 

1

 

9

 

1

 

 

9

 

 

10

-12

Frequency

 

 

10

-12

Frequency

 

IR

 

0

 

-15

 

0

 

 

-15

 

 

 

Level

 

-18

(MHz)

 

Level

 

-18

(MHz)

 

 

 

 

 

 

 

 

 

 

 

CH B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Channel A

 

 

 

 

 

 

Channel B

 

 

 

Power Switch:

Two-positionpush button, ON/OFF

Power Indicator:

Green LED

Audio Level Controls:

CHA and CHB Input Level, rotary knobs

Audio Indicators:

CHA and CHB Audio Level, 10-segmentLED’s

Carrier LEDs:

4 green LED carrier “on” indicators per channel (indicates frequency, malfunctions)

Compress Control:

1:1 to 4:1

Input Mix LED:

Indicates inputs A and B audio are mixed and transmitted by CHA and CHB off

Stereo LED:

Indicates stereo mode

Phones Switch:

Selects CH1 or CH2 for phones when not in stereo mode

Phones Output:

1/4" TRS headphone jack. Accepts stereo, mono and any impedance phones.

Infrared Test LED:

IR LED for receiver testing, monitoring and audio signal testing.

NOTE: SPECIFICATIONS SUBJECT TO

WITHOUT NOTICE!

 

 

 

 

©2007, Williams Sound Corp. MCAT 002B

1

 

 

232 MOD Model Modulator Infrared Channel Two

Two Channel Infrared Modulator • Model MOD 232

D

MOD 232 Rear Panel:

Input CH A Input CH B

 

 

Audio Line

 

MOD 232 Infrared System Modulator

 

 

CH A

1 2 3 4 5 6 7 8

Output

 

Williams Sound

 

 

 

 

Baseband

 

 

 

 

 

 

 

 

 

CH A

Input

Output Output

 

 

CH B

1 2 3 4 5 6 7 8

 

 

Power In

 

 

 

 

 

 

 

 

 

 

 

24 VAC, 15 VA, 50-60Hz

Configuration

CH B

Plug

 

 

Switches

 

 

Made in USA

100 Ohms

50 Ohms

 

 

24V

Power Input:

-PinMolex, 24 VAC,50-60Hz, 15 VA

Audio Input Jack:

and CHB combination XLR/TRS jack

Mic Level:

Lo-Z,100 µV min. to 90 mV max., 1 mV nominal, 3kΩ input impedance, sup-

 

switchable simplex power per DIN 45596 for condenser mics

Line Level:

or unbalanced, 21 mV min. to 10V max., 212 mV nominal, 100 kΩ

Audio Line Output Jacks:

Jack, CHA and CHB, 500 mV, unbalanced, 100 Ω source impedance, load imped-

 

must be greater than1 kΩ

Configuration Switches:

and CHB 8-positionDIP switch, selects Mic/Line input, compressor gain, simplex

 

discrete or mixed inputs, carrier frequency, channel disable, auto shut-offtimer

Baseband Input Jack:

allows mixing with additional MOD 232 Modulator (4CH operation), 100 mV, 50

 

input impedance, use with MOD 232 or MOD 112 (111), BNC, RG-58Cable

Baseband Output Jack:

BNC jacks carry baseband signal, 100 mV/channel, 50 Ω source impedance, for use

 

WIR TX9 or MOD 232 only

Approvals:

FCC, RoHS, WEEE

Operating Requirements:

-50ºC ambient temperature,non-condensing,non-corrosiveatmosphere

Warranty:

years on modulator*

*90 days on accessories.

NOTE: SPECIFICATIONS SUBJECT TO

WITHOUT NOTICE!

 

 

 

 

©2007, Williams Sound Corp. MCAT 002B

2

 

 

232 MOD Model Modulator Infrared Channel Two

Two Channel Infrared Modulator • Model MOD 232

 

 

 

D

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bid Specs:

 

 

 

 

The infrared system shall

 

 

 

of separate modulator and emitter units, with portable receivers. The

modulator unit shall be a

 

 

 

style, metal enclosure. A rack panel shall be available to mount one

or two modulator units

 

 

 

single EIA rack space. An adjustable floor stand and mounting bracket

shall be available to mount

 

 

 

and emitter together for portable operation.

The modulator shall provide

 

 

 

channels of selectable FM carrier signals, 2.3/2.8/3.3/3.8 MHz, so that a

single modulator can be

 

 

 

simultaneously transmit up to two channels, and two modulators can

be ganged together to

 

 

 

to four channels simultaneously. The carrier signals shall use 50 kHz

deviation and 50 µS pre-emphasis.The carrier signals (baseband) shall be transmitted to one or more emitters by 50 ohm RG58 coaxial cable withBNC-typeconnectors. ABNC–typebaseband input jack and

baseband output jack shall

on the modulator. The modulator shall be powered by an

external 24 VAC, 10 VA, 50

power supply, connected via a three-pinMolex power connector.

It shall have a rocker-type

switch, power LED indicator, four carrier indicator LEDs and two bar

graph-typeLED audio

The modulator shall have a modulated IR LED on the front panel for

testing purposes, and a headphone jack that accommodates mono and stereo 1/4" headphones, and

channel monitoring switch.

shall have two rotary audio input level controls, and a screw-

driver adjustable control for

the input compression from 1:1 to 4:1. The modulator shall have

two timers that automatically

off the carriers when there is no audio signal present for 15 minutes.

The modulator shall have

input jacks that accept 3-pinXLR plugs for balanced micro-

phone input or 1/4" TRS

balanced or unbalanced line-levelinputs. The XLR inputs shall be low

impedance, accept signal

100 µV to 90 mV and supply 15 V simplex power per DIN45596. The

TRS jacks shall accept balanced

unbalanced audio signal levels from 21 mV to 10 V. The modulator

shall have CE, FCC, RoHS,

approval and carry a five-yearparts and labor warranty.*

The modulator shall be the

Sound Corp. model MOD 232.

*90 days on accessories.

NOTE: SPECIFICATIONS SUBJECT TO

WITHOUT NOTICE!

 

 

 

 

©2007, Williams Sound Corp. MCAT 002B

3

 

 

232 MOD Model Modulator Infrared Channel Two

Two Channel Infrared Modulator • Model MOD 232

D

Contact:

United States

Williams Sound Corp.

10321 W. 70th Street Eden Prairie, MN 55344

Phone: 800-328-6190or952-943-2252Fax:952-943-2174

Web: www.williamssound.com Email: info@williamssound.com

Canada

Thorvin Electronics

2861 Sherwood Heights Dr. Units 36-37Oakville, ONL6J-7K1Canada

Phone: 800-323-6634or905-829-3040Fax:905-829-4196

Web: www.thorvinelectronics.com

South America

DPTech

SIA Trecho 3/4 Lote 335 2°. Andar 71200-030Brasília, DF

BRAZIL

Phone: (5561) 361-1384Fax: (5561)361-0948Web: www.dptech.com.br Email: ws@dptech.com.br

United Kingdom

Sound Associates

Keeble House, 81 Island Farm Road

West Molesey, Surrey KT 2SA

United Kingdom

Phone: (44) 020 8939 5900

Fax: (44) 020 8939 5901

Web: www.soundassociates.co.uk

Email: jmurdoch@soundassociates.com

Asia, Europe, Latin America, Mexico

International Sales Department Williams Sound Corp.

10321 W. 70th Street

Eden Prairie, MN 55344 USA Phone: +1 952 224 7791 Fax: +1 952 943 2174

Email: info@williamssound.com Web: www.williamssound.com

NOTE: SPECIFICATIONS SUBJECT TO

WITHOUT NOTICE!

 

 

 

 

©2007, Williams Sound Corp. MCAT 002B

4