Sennheiser SR 2020-D - Manuel utilisateur

SR 2020-D

Instruction manual

SR 2020-D | 1

Important safety instructions

1. Read these safety instructions and the instruction manual of the product.

2. Keep these safety instructions and the instruction manual of the product. Always include

all instructions when passing the product on to third parties.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus near water.

6. Only clean the product when it is not connected to the power supply system. Clean only

with a dry cloth.

7. Do not block any ventilation openings. Install in accordance with the manufacturer‘s

instructions.

8. Do not install near any heat sources such as radiators, heat registers, stoves, or other

apparatus (including ampliﬁers) that produce heat.

9. Only operate the product from the type of power source speciﬁed in the chapter „Speciﬁ-

cations“ and indicated on the power supply unit.

10. Protect the power cord from being walked on or pinched, particularly at plugs, conve-

nience receptacles, and the point where it exits from the apparatus.

11. Only use attachments/accessories speciﬁed by the manufacturer.

12. Use only with the cart, stand, tripod, bracket, or table speciﬁed by the manufacturer, or

sold with the apparatus. When a cart is used, use caution when moving the cart/appara-

tus combination to avoid injury from tip-over.

13. Unplug the power supply unit from the wall socket,

• to completely disconnect the product from the power supply system,

• during lightning storms,

• when not using the product for long periods of time.

14. Refer all servicing to qualiﬁed service personnel. Servicing is required when the appara-

tus has been damaged in any way, such as power-supply cord or plug is damaged, liquid

has been spilled or objects have fallen into the apparatus, when the apparatus has been

exposed to rain or moisture, does not operate normally, or has been dropped.

15. Only use the supplied power supply unit.

16. Warning: To reduce the risk of ﬁre or electric shock, do not expose this apparatus to rain

or moisture and objects ﬁlled with liquids, such as vases, should not be placed on this

apparatus.

17. When using the supplied device feet, do not place the product on delicate surfaces. Del-

icate surfaces can become discolored or stained when they come into contact with the

plastic of the device feet.

18. Always ensure that the power supply unit is

• in a safe operating condition and easily accessible,

• properly plugged into the wall socket,

• only operated within the permissible temperature range,

• not covered or exposed to direct sunlight for longer periods of time in order to prevent

heat accumulation.

2 | SR 2020-D

Important safety instructions

Risk of ﬁre due to overloading

Do not overload wall outlets and extension cables as this may result in ﬁre and electric

shock.

Replacement parts

When replacement parts are required, be sure the service technician uses replacement parts

speciﬁed by Sennheiser or those having the same characteristics as the original part. Unau-

thorized substitutions may result in ﬁre, electric shock, or other hazards.

Danger due to high volume levels

This product is used for commercial purposes. Commercial use is subject to the rules and

regulations of the trade association responsible. Sennheiser, as the manufacturer, is there-

fore obliged to expressly point out possible health risks arising from use.

This product is capable of producing sound pressure levels exceeding 85 dB(A). 85 dB(A) is

the sound pressure corresponding to the maximum permissible volume which is by law (in

some countries) allowed to affect your hearing for the duration of a working day. It is used

as a basis according to the speciﬁcations of industrial medicine. Higher volumes or longer

durations can damage your hearing. At higher volumes, the duration must be shortened in

order to prevent hearing damage.

The following are sure signs that you have been subjected to excessive noise for too long a

time:

• You can hear ringing or whistling sounds in your ears.

• You have the impression (even for a short time only) that you can no longer hear high

notes.

Inform all users of these risks and ask them to set the volume to a moderate level if neces-

sary.

Intended use

The product is designed for indoor and outdoor use.

The product can be used for commercial purposes.

It is considered improper use when the product is used for any application not named in the

corresponding instruction manual.

Sennheiser does not accept liability for damage arising from improper use or misuse of this

product and its attachments/accessories.

Before putting the products into operation, please observe the respective country-speciﬁc

regulations!

Sennheiser is not liable for damages resulting from the loss of connection due to ﬂat or over-

aged (rechargeable) batteries or exceeding the transmission range.

SR 2020-D | 3

Delivery includes

• SR 2020-D transmitter

• NT 2-3 mains unit

• Telescopic antenna

• GA 2 rack adapter, consisting of

• 2 rack mount “ears”

• Blanking plate

• Jointing plate

• 2 blanking plugs for closing off unused BNC holes

• 12 recessed head screws M 3x6

• 2 recessed head screws M 6x10

• 4 device feet

• Instruction manual

• Manufacturer declarations

System components

The SR 2020-D transmitter allows the stationary use of the Tourguide 2020-D system.

The transmitter can be combined with the following individual components:

• HDE 2020-D-II stethoset receivers

• EK 2020-D-II receivers

4 | SR 2020-D

Tourguide system overview

Together with the SR 2020-D transmitter, the Tourguide 2020-D system offers optimum digi-

tal speech transmission for the following applications:

• simultaneous interpretations and

• stationary guided tours

Areas of application

Simultaneous interpretations during conferences (“Conference“ mode)

The main application of the stationary SR 2020-D transmitter is its use for simultaneous

interpretations during conferences.

Eight ﬁxed transmission frequencies allow for interference-free simultaneous interpretations

in up to eight languages (see “Transmitting several languages simultaneously” on page 17).

tourguide

tourguidetourguide

SR 2020-D | 5

Tourguide system overview

Stationary guided tours (“Tourguide“ mode)

With a stationary guided tour, both the group and the transmitters are in a ﬁxed location.

Examples for stationary guided tours are multimedia presentations, movie shows as well as

boat and bus tours in several languages.

Six ﬁxed transmission frequencies allow for simultaneous transmission in up to six languages

(see “Transmitting several languages simultaneously” on page 17).

The Tourguide 2020-D system operates in the 863 MHz–865 MHz frequency band, which is

license-free in Europe (see „Speciﬁcations“ on page 22).

Connection possibilities

You can connect one of the following phantom-powered Sennheiser condenser microphones

(not included) to the SR 2020-D transmitter:

• ME 34, ME 35, ME 36

In addition, you can connect an audio source to the transmitter:

• Conference/interpretation systems

• MP3 player

• CD /DVD player

6 | SR 2020-D

Product overview

910 11 12

tourguide

46512 3

1 Headphone output (PHONES),

¼” (6.3 mm) jack socket

2 Headphone volume control (VOL)

3 Display, backlit

4 rocker button ▲/▼, backlit

5 SET button, backlit

6 ON button, backlit (serves as the ESC

(cancel) key in the operating menu)

7 Cable grip for mains cable

8 Socket for connection of mains unit

(DC IN 12 V/300 mA)

9 Audio input (AF IN MIC/LINE), XLR-3F

socket

10 Service interface (DATA)

11 Type plate

12 Antenna output (ANT), BNC socket





1 Display for the selected signal source

(„Mic“/„Line“)

2 Mic-/Line level display

3 Channel display

4 Lock mode icon (lock mode is activated)

SR 2020-D | 7

Product overview

Indications and displays on the transmitter

Display for the selected signal source (Mic/Line)

You can connect either a condenser microphone or an external audio source to the transmit-

ter.

If you connect a condenser microphone, select “Mic” via the operating menu. If you connect

an external audio source, select “Line” (see page 19).

“Mic” or “Line” appears on the display 1.



Note: If the “Mic” microphone input is selected but no microphone is connected, “No Mic”

appears on the display.

Mic/Line level display

The Mic-/Line level display 2shows the input level.

When the transmitter’s audio input level is excessively high, the Mic-/Line level display 2

shows full deﬂection.



In addition, the display panel is in backlit in red and the text “PEAK” ﬂashes in alternation

with the channel display (see page 19).

Channel display

The channel display 3provides information on the currently selected channel (see page 17).



Lock mode icon

The lock mode icon 4appears when the lock mode is activated (see page 20).



8 | SR 2020-D

Putting the SR 2020-D into operation

Preparing the transmitter for use

You can set up the SR 2020-D transmitter on an even surface or mount it into a 19" rack.

Note: Do not ﬁt the rubber feet when rack mounting the transmitter.

Setting up the transmitter on an even surface

To ensure that the transmitter cannot slip on the surface on which it is placed, four self-ad-

hesive soft rubber feet are supplied.

CAUTION

RISK OF STAINING OF FURNITURE SURFACES!

Some furniture surfaces have been treated with varnish, polish or synthetics which might

cause stains when they come into contact with other synthetics.

Despite a thorough testing of the synthetics used by us, we cannot rule out the possibility of

staining.

Do not place the transmitter on delicate surfaces.

Ensure that the base of the transmitter is clean and free from grease before mounting the

rubber feet.

Fix the rubber feet to the base of the transmitter by peeling of the safety paper and ﬁtting

them as shown in the diagram.

Connecting the antenna

Connect the telescopic antenna to the antenna output 12 at the rear of the transmitter.

To obtain the best possible radiation power:

Align the antenna vertically.

SR 2020-D | 9

Putting the SR 2020-D into operation

Rack-mounting

CAUTION

RISKS WHEN RACK MOUNTING THE TRANSMITTER!

When installing the device in a closed or multi-rack assembly, please consider that, during

operation, the ambient temperature, the mechanical loading and the electrical potentials will

be different from those of devices which are not mounted into a rack:

The ambient temperature within the rack must not exceed the temperature limit speciﬁed

in the speciﬁcations.

When installing the device in a rack, take good care not to affect the ventilation required

for safe operation. If necessary, provide additional ventilation.

Make sure the mechanical loading of the rack is even to avoid a hazardous condition such

as a severely unbalanced rack.

When connecting the device to the mains, observe the information indicated on the type

plate. Avoid circuit overloading. If necessary, provide overcurrent protection.

When installing the device in a closed or multi-rack assembly, please note that intrinsi-

cally harmless leakage currents of the individual mains units may accumulate, thereby

exceeding the allowable limit value. As a remedy, ground the rack via an additional ground

connection.

Mounting the antennas to the front or rear of the rack

For the best possible radiation power, you should align the antennas vertically. If this is not

possible, use one of the optional antenna mounts (see “Accessories and spare parts” on page

25):

• You mount 1 transmitter: Antenna mount AM 2

• You mount 2 transmitters: Antenna mount GA 3030 AM

When using several transmitters simultaneously, make sure that, in order to avoid interfer-

ence, the distance between the antennas is sufﬁcient. If necessary, use active transmitter

combiners (see “Accessories and spare parts” on page 25):

• You mount 4 transmitter: Active Transmitter Combiner AC 3

• You mount 8 transmitters: Active Transmitter Combiner AC 3200-II

If you want to mount the antennas outside the rack, you can use remote antennas (see “Ac-

cessories and spare parts” on page 25).

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