Sennheiser AC 3000 Manuale utente

Bedienungsanleitung

Instructions for use

Notice d‘emploi

Istruzioni per l‘uso

Instrucciones para el uso

Gebruiksaanwijzing

AC3000

Active Transmitter Combiner 8:1

TitelSeite_A5.fm Seite 1 Mittwoch, 6. Oktober 2004 12:41 12

Bedienungsanleitung.......................................................................................................3

Instructions for use.......................................................................................................13

Notice d’emploi............................................................................................................. 23

Istruzioni per l’uso........................................................................................................ 33

Instrucciones para el uso............................................................................................. 43

Gebruiksaanwijzing...................................................................................................... 53

TitelSeite_A5.fm Seite 2 Mittwoch, 6. Oktober 2004 12:41 12

Instructions for useAC3000

Active Transmitter Combiner 8:1

AC3000_US.fm Seite 13 Dienstag, 5. Oktober 2004 4:17 16

Contents

AC 3000 .................................................................................... 13

Active Transmitter Combiner 8:1 ......................................... 13

Contents .................................................................................... 14

Brief description ...................................................................... 14

Safety instructions ................................................................. 15

Delivery includes ..................................................................... 17

Operating elements ................................................................ 17

Connection diagram ............................................................... 18

Putting the unit into operation ............................................ 18

Operation .................................................................................. 20

Troubleshooting ...................................................................... 20

Accessories ............................................................................... 21

Specifications ........................................................................... 21

Garantee ................................................................................... 22

Brief description

With the AC 3000 8-to-1 active transmitter combiner, the

signals of up to eight SR3054 transmitters or up to four

SR 3056 twin transmitters can be combined onto a single

antenna (A 2003 UHF directional antenna or A 1031 U

omni-directional antenna).

The active transmitter combiner allows you to make high-

quality transmission systems with up to 8 channels.

Areas of application:

yMulti-channel in ear monitoring system for broadcast or

stage use

yMulti-channel system suitable for any application where

talk-back signals are to be transmitted (e.g. studio)

AC3000_US.fm Seite 14 Dienstag, 5. Oktober 2004 4:17 16

Safety instructions

Danger!

Overheating or overvoltages (caused by lightning striking

themainssupplyetc.)cancauseunitswith a mains connec-

tion to catch fire!

Always set up the unit in a well-ventilated place! Make sure

that the air vents of the unit are not covered or blocked!

Never stack more than two units directly one above the

other! Do not set up the unit near any heat sources and

never expose the unit to direct sunlight (see page 15)! Use

an overvoltage protection or, during a thunderstorm, dis-

connect the unit from the mains!

The AC 3000 contains mechanically moving parts (fans).

Since dust and pollution can impair their function, you

should regularly check the fans for proper operation and

cleanoutany dust ifnecessary.Thefailureof oneorseveral

fans can cause overheating and permanent damage to the

unit.

Warning!

If you open units or use damaged mains cables, you can

receive a dangerous electric shock!

Neveropen the unitand only use undamaged mains cables!

If a unit should be defective, repair must be carried out by

authorized personnel! If units are opened by you in breach

of this instruction, the warranty becomes null and void.

Warning!

If units and cables are set up improperly, persons can be

injured or units can be damaged!

Set up the unit on an even surface or mount it into a rack!

Lay the cables in such a way that no-one can stumble over

them!

AC3000_US.fm Seite 15 Dienstag, 5. Oktober 2004 4:17 16

Attention!

If liquids or small parts which conduct electricity find their

way into the interior or to the sockets of the unit, this can

cause a short-circuit which may damage the unit!

Keep liquids and small parts which conduct electricity away

fromtheunit!Useadampclothforcleaningtheunit.Donot

use any solvents or cleansing agents!

AC3000_US.fm Seite 16 Dienstag, 5. Oktober 2004 4:17 16

Delivery includes

y1 active transmitter combiner 8:1

y1 mains cable

y1 rack-mounting kit

y4 set of self-adhesive plastic feet

y1 instruction manual

You additionally require BNC cables for connecting the

transmitters and the antenna to the AC 3000, an antenna

(A 2003 UHF passive directional antenna or A 1031 U pas-

sive omni-directional antenna) and up to eight SR 3054

transmitters or up to four SR 3056 twin transmitters.

Operating elements

POWER LED

POWER (ON/OFF) switch

8 RF inputs RF IN 1 to RF IN 8 for connecting the

transmitters

3 low-noise fans

BNC socket for antenna output ANT

IEC mains socket

8 LEDs for RF signal indication

   

 





AC3000_US.fm Seite 17 Dienstag, 5. Oktober 2004 4:17 16

Connection diagram

The below connection diagram shows the connections for

an 8-channel system.

Putting the unit into operation

Setting up the unit

왘SetuptheAC3000onaneven,horizontalsurfacesothat

it cannot fall over or mount it into a 19" rack.

Warning!

During operation, the AC 3000 and the connected

transmitters produce considerable waste heat! Make

sure that the air vents of the units are not covered or

blockedandprovideforaductofsufficientsizetoensure

a free air flow between the units – especially when

mounting several transmitter combiners or transmitters

into a desk, chassis or rack! Never stack more than two

units directly one above the other!

ANT

8:1

AC3000_US.fm Seite 18 Dienstag, 5. Oktober 2004 4:17 16

Connecting the antenna

The AC 3000 active transmitter combiner can be used with

either the A 2003 UHF directional antenna or the A 1031 U

omni-directional antenna. The antenna transmits the sig-

nalsofallconnectedtransmitters.Thesignalsarecombined

onto the antenna output with no distribution attenuation.

왘Connect the antenna to the antenna output ANT .

Note:

Each AC 3000 requires its own antenna! Several

AC 3000s cannot be daisy-chained!

Connecting the transmitters

You can connect up to eight SR 3054 transmitters or up to

four SR 3056 twin transmitters to the AC 3000.

왘Use BNC cables to connect the transmitters to the RF

inputs RF IN 1 to RF IN 8 .

Connecting the mains cable

왘Connect the mains cable to the IEC mains socket  and

to the mains.

Note:

The AC 3000 can be connected to any mains power

supply with 100 V to 240 V AC (50 to 60 Hz).



 





AC3000_US.fm Seite 19 Dienstag, 5. Oktober 2004 4:17 16

Operation

Turning the AC 3000 on and off

왘To turn the AC 3000 on, press the POWER (ON/OFF)

switch .

The POWER LED lights up red.

왘To turn the AC 3000 off, press the POWER (ON/OFF)

switch  once more. The POWER LED goes off.

RF signal indication

왘The AC 3000 features eight control LEDs  which will

light up if an input signal is present at the corresponding

input.

Troubleshooting

One or several LEDs for input signal indication do not

light up

왘Checkiftransmitters are connectedtothecorresponding

inputs.

왘Check if the corresponding transmitters are turned on.

Disturbed reception or no reception

Possible causes:

yTransmitting antennas are not within the reception area

yTransmitters or receivers are not turned on

yBatteries are not inserted into the receiver or batteries

are low

yThe antennas are not connected correctly

yThe connecting cables are defective

yToo high cable attenuation due to too long antenna

cables or wrong type of antenna cable

yThe selected transmission and receiving frequencies are

not within the frequency window





AC3000_US.fm Seite 20 Dienstag, 5. Oktober 2004 4:17 16

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