Beyerdynamic SIR 320 User Manual

OPERATING INSTRUCTIONS

SIR 320

Infrared Multi-Channel Receiver

Printed in Germany

Should you have some questions regarding this manual please contact:

beyerdynamic GmbH & Co. KG
Theresienstr. 8
D-74072 Heilbronn
Tel.: [phone]
Fax: [phone]
Email: [e-mail]

For further information about our products please go to our website:

http://www.beyerdynamic.com

© 2007
beyerdynamic GmbH & Co. KG, Heilbronn

All rights reserved, especially (also partly) the translation, reprint, reproduction through copying or other
similar methods.

byerdynamic reserves the right to make changes without notice.

January 2007

SIR Infrared System SIR 320

Content

About this manual................................................................................................................ 4

Symbols...................................................................................................................................................... 4

Important tips....................................................................................................................... 6

General informa tion ................................................................................................................................ 6

Safety informatio n ................................................................................................................................... 6

SIR 320 Infrared Multichannel Receiver ..........................................................................7

Con tents o f basic delivery ....................................................................................................................... 8

Accessories ................................................................................................................................................ 8

System co mponen ts ................................................................................................................................. 8

Technical data .......................................................................................................................................... 9

Characteristics of reception.................................................................................................................. 10

Horizontal ...........................................................................................................................................10

Vertical ................................................................................................................................................ 11

Operating controls............................................................................................................. 12

Fro nt view ............................................................................................................................................... 12

Infrared lens ........................................................................................................................................ 13

LC-Display .......................................................................................................................................... 13

Navigation keys.................................................................................................................................. 13

Charging contacts .............................................................................................................................. 13

Headphone socket ..............................................................................................................................13

Side- / Rear view ..................................................................................................................................... 14

Carrying clip ....................................................................................................................................... 14

Lanyard................................................................................................................................................ 14

Bat tery cover ...................................................................................................................................... 14

Operation ...........................................................................................................................15

Starting the receiver .............................................................................................................................. 15

Volume con trol / memory function ..................................................................................................... 16

Auto Switch -off function ...................................................................................................................... 16

Disposable / rechargeable batteries....................................................................................................... 17

Service mode ........................................................................................................................................... 18

Activation of the service mode ....................................................................................................... 18

Bat tery v oltage................................................................................................................................... 19

IR-field streng th ................................................................................................................................. 19

Guard function (op tion) .................................................................................................................... 2 0

System parameters P1 , P2, P3......................................................................................................... 20

Muting ................................................................................................................................................. 20

Channel shift ...................................................................................................................................... 20

Exit the service mode........................................................................................................................ 21

Hardware reset ........................................................................................................................................ 21

Behaviour in the charging tray ............................................................................................................. 21

Trouble shooting .................................................................................................................................... 22

Table of frequencies and channels ....................................................................................................... 23

Warranty.............................................................................................................................24

Copyright by beyerdynamic 3

SIR 320 SIR Infrared System

About this manual

Symbols

The meaning of the symbols and fonts used in this manual:

Texts in bolded letters require your special attention.

Indicates an important note, if not minded, the functionality of the unit, the security of your data, or
your health are put at risk. Taking special care when you see this symbol as indicates important
information!

Supplementary information, remarks, and tips follow this symbol.

Text which follows this symbol describes activities that must be performed in the order shown.

This product conforms to the rules of the following European regulations:
89/336/EWG
Council directive to the alignment of the rules, of rights of all member states about the electromagnetic
compatibility, adapted through RL 91/263/EWG, 92/31/EWG and 93/68/EWG of the council. Further
information is available on request.

4 Copyright by beyerdynamic

! CAUTION !

YOU SHOUL D PAY ATTENTION TO THE

FOLLLOW ING SAFETY INSTRUCTIONS!

Before setting receivers with rechargeable batteries into operation:

As soon as the rechargeable batteries are inserted in the receivers,

these have to be charged immediately and completely in the

designated SIR C 50 Charging Tray (equipped with Original

beyerdynamic power supply).

Remember: Receivers not changing about 2 or 3 month will result in total discharge. This will cause
the destruction of the rechargeable batteries! Therefore total discharged or defective rechargeable
batteries will not be longer charged and have to be exchanged. In such a case you only may insert a
new set of rechargeable batteries.

We recommend charging the rechargeable batteries every month for approx. 8 hours.

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SIR 320 SIR Infrared System

Important tips

General information

Please read this manual carefully before starting operation. Keep this manual together with the units. If you
pass on the units to other parties, please include this manual.
To avoid damages of the receiver please read the following tips for the use with disposable or rechargeable
batteries carefully!

Don’t use disposable and rechargeable batteries together in one receiver!
You will invalidate the warranty and damage the receiver.

In no case it is allowed to charge receivers with disposable batteries! They can leak or even
explode.

Changing of batteries
When changing the batteries the receiver may stop reacting. In this case please carry out a hardware
reset. (See paragraph Operation > Hardware reset)

The warranty invalidates, if you cause (generate, precipitate) inappropriate use or handling of the unit.

Safety information

Over prolonged period the unit should not be used at the maximum volume
setting (value 15). Prolonged exposure to high sound pressure levels might damage your hearing!

The used headphones may not cross a sound pressure of 100dB SPL at max. adjusted volume value!
Preferably use the headphones indicated by us.

Take care in the use of the lanyard!

Attention! – Polarity
During insertion of new disposable/rechargeable batteries take care of the correct polarity. Wrongly
inserted batteries will cause malfunctions. Wrongly inserted batteries can leak and destroy the
equipment.

6 Copyright by beyerdynamic

SIR 320 Infrared Multi-channel Receiver

Congratulations on buying the SIR 320 infrared receiver from beyerdynamic! You have invested in reliably
conference equipment.

The SIR 320 multi-channel receiver uses the same standards and protocols, which govern all other
beyerdynamic infrared transmission systems; this allows operation with other manufactures equipment
operating to the same standards. The built-in PLL- (Phase-locked-loop) synthesiser guarantees a high
sensitivity as well as good reception.

The new generation of the SIR receivers allows use in direct sunlight, e.g. outside or in places where normal
infrared-reception would nearly be impossible due to high light intensity, as experienced at press
conferences, on stages, etc.
Together with other system components the receiver enables wireless audio transmission.

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SIR 320 SIR Infrared System

Contents of basic delivery

 SIR 320 Infrared Receiver .......................................... Order # 484.539

 Battery cover incl. screw - fixed to receiver
 Carrying clip incl. spring - fixed to receiver

Accessori es

 DT 1 Single-sided headphone, 32 ohms,

cable length 0.8 m ...................................................... Order # 471.399

 DT 2 Headphone, 16 ohms,

cable length 0.8 m ...................................................... Order # 471.437

 DT 3 Neckworn headphone, 64 ohms,

cable length 0.8 m ...................................................... Order # 484.571

 NiMH –rechargeable batteries

(3 batteries are needed per receiver)......................... Order # 484.504

 SIR C 50 Transport case for SIR 320 receivers

incl. power supply, 230 V ........................................... Order # 484.547

System components

The SIR 320 receiver operates as a single component in a wide system; a complete SIR language
distribution system also requires the following components:

IR-transmitter e.g. SIR 800 (to modulate audio input)
IR-radiator e.g. SIR 801 (to transmit modulated audio by infrared light)
IR-receiver SIR 320 with headphone (to receive infrared light and convert to audio output)

8 Copyright by beyerdynamic

Technical data

Complies with standards IEC 914 and IEC61603-3 (in normal operation)

Number of channels: up to 32 (in dependence of type) regarding IEC 61603-2 and IEC 61603-7

Modulation: FM

Transmission frequencies: 55 kHz - 1335 kHz in 40 kHz pattern for OR - Ch31

Intermediate frequency: 455 kHz

Operating mode: Superhet receiver with PLL Synthesizer

Angle of reception: 120° horizontal / 100° vertical

Frequency response: 125 - 8.000 Hz

Distortion factor: < 2 %

Signal / Noise ratio: > 55 dB

Headphone socket: 3,5mm (DIN 455838)

Headphone impedance: 32 - 600 Ohm

Operating voltage: 3.6 ... 4.5 Volts

Power supply: 3 x rechargeable batteries NiMH 1.2V / 750 mA/h (AAA)
or 3 x disposable batteries 1,5V (AAA)

Operating time up to 75 hours (rechargeable batteries)
up to 120 hours (disposable batteries)

Display: seven-segment 2 digit LCD (Liquid Crystal Display) back lighted
(white text / black ground)

Test functions: Battery voltage and IR-field strength via LCD

Temperature range: (operating) +10°C ... +40°C
(storage) -20°C ... +50°C

Humidity: < 80%, not condensed

Size: 150 x 50 x 25 mm

Housing: ABS-plastic, grey

Weight: approx. 150g (incl. batteries)

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