Sennheiser AC 3200-II High Gain Bedienungsanleitung

AC 3200-II

AC 3200-II High Gain

Instruction manual

AC 3200-II | 17

Contents

Important safety instructions �� 18

Active Transmitter Combiner 8:1 AC 3200-II �� 19

Delivery includes ��20

Connection diagram ��20

Product overview �� 21

Putting the AC 3200-II into operation ��22

Preparing the AC 3200-II for use��22

Connecting devices ��24

Connecting the antenna ��24

Connecting a transmitter to the AC 3200-II ��25

Connecting the mains unit ��25

Switching the AC 3200-II on and off ��26

Recommendations and tips for optimum transmission ��26

Cleaning and maintaining the AC 3200-II ��27

If a problem occurs ��27

Speciﬁcations ��29

Manufacturer declarations �� 30

18 | AC 3200-II

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 sys-

tem� Clean only with a dry cloth�

7� Do not block any ventilation openings� Install in accordance with the manu-

facturer‘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 „Speciﬁcations“ and indicated on the power supply unit�

10� Protect the power cord from being walked on or pinched, particularly at

plugs and convenience receptacles�

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/apparatus 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 apparatus 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� Delicate surfaces can become discolored or stained when they

come into contact with the plastic of the device feet�

AC 3200-II | 19

Important safety instructions

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�

Intended use

• The product is designed for indoor 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 overaged (rechargeable) batteries or exceeding the transmis-

sion range�

• Sennheiser does not accept liability for damage arising from abuse or mis-

use of this product and its attachments/accessories�

Active Transmitter Combiner 8:1 AC 3200-II

With the AC 3200-II active transmitter combiner, the signals of up to eight

Sennheiser wireless monitoring transmitters can be combined onto a single an-

tenna, e�g� the A 2003 UHF directional antenna, the A 1031 U omni-directional

antenna or the A 5000 CP circularly polarized UHF antenna� For suitable trans-

mitters, please refer to the AC 3200-II product page at www�sennheiser�com�

The AC 3200-II allows you to make high-quality 8-channel transmission sys-

tems suitable for the following areas of application:

• Multi-channel monitoring systems for stage use

• Multi-channel systems suitable for any application where talk-back signals

are to be transmitted (e�g� studio)�

20 | AC 3200-II

Delivery includes

1 AC 3200-II active transmitter combiner 8:1

1 NT 12-125D mains unit

3 mains cables (EU/UK/US)

4 self-adhesive device feet

1 instruction manual

Connection diagram

The below connection diagram shows the connections for an 8-channel system

with a single antenna�

AC 3200-II

ANT

RF OUTPUT

RF OUTPUTS

RF INPUTS

Rack-mount transmitters

AC 3200-II | 21

Product overview

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1 Rack mount “ears”

2 Air vents (on the sides)

3 8 LEDs: operation indicators of the RF inputs

4 LED

5 On-/Off switch

6 DC input socket for connecting the NT 12-125D mains unit

7 8 RF inputs RF IN 1 to RF IN 8 for connecting the transmitters

8 BNC socket for antenna output ANT

22 | AC 3200-II

Putting the AC 3200-II into operation

Preparing the AC 3200-II for use

You can set up the AC 3200-II on an even surface or mount it into a rack�

Setting up the device

CAUTION

DANGER OF HEAT DAMAGE TO THE DEVICES

During operation, the AC 3200-II and the connected transmitters produce

considerable waste heat� If this heat cannot dissipate, it can cause damage to

the devices�

The devices are equipped with fans to assist dissipation of generated heat:

Make sure that the air vents 2 on the sides of the AC 3200-II are not covered

or blocked and provide ducts of sufﬁcient size or allow sufﬁcient space to

ensure a free air ﬂow between the devices�

Regularly clean the air vents on the sides of the AC 3200-II with a soft brush�

In order to avoid heat accumulation, make sure to install the AC 3200-II as

the uppermost device�

Never stack more than two devices directly one above the other�

Never place several NT 12-125D mains units directly next to or on top of one

another�

To ensure that the AC 3200-II cannot slip on the surface on which it is placed,

four self-adhesive soft rubber feet are supplied�

CAUTION

RISK OF STAINING OF SURFACES

Some 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 possi-

bility of staining�

Do not place the AC 3200-II on delicate surfaces�

AC 3200-II | 23

Putting the AC 3200-II into operation

Ensure that the base of the AC 3200-II is clean and free from grease before

ﬁtting the rubber feet�

Fix the rubber feet to the base of

the AC 3200-II by peeling off the

backing paper and ﬁtting them as

shown in the diagram on the right�

Place the AC 3200-II on an even,

horizontal surface�

Rack-mounting

CAUTION

RISKS WHEN RACK MOUNTING THE AC 3200-II

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 AC 3200-II speciﬁcations�

When installing the device in a rack, take good care not to affect the ventila-

tion required for safe operation� If necessary, provide additional ventilation�

In order to avoid heat accumulation, make sure to install the AC 3200-II as

the uppermost device in the rack�

Provide for a duct or vent space of 1 U above the AC 3200-II to ensure that

the heated air can dissipate�

Never place several NT 12-125D mains units directly next to or on top of one

another�

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

condition such as a severely unbalanced rack�

Make sure the two cables of the NT 12-125D mains unit are not exposed to

mechanical loading (e�g� pulling)�

When connecting the device to the power supply, observe the information

indicated on the mains unit� Avoid circuit overloading� If necessary, provide

overcurrent protection�

Ensure a reliable mains ground connection of the device by taking appropri-

ate measures – especially when you are using multi-outlet power strips or

extension cables�

24 | AC 3200-II

Connecting devices

To mount the AC 3200-II into a 19" rack:

Slide the AC 3200-II into the 19" rack�

Secure the rack mount “ears” 1 to the rack using four screws (to be ordered

separately)�

Connecting devices

Connecting the antenna

CAUTION

DANGER OF DAMAGE TO THE DEVICES!

Do not daisy-chain several AC 3200-II� Do not connect other active combiners

to the AC 3200-II�

Never connect the AC 3200-II to other active combiners�

Only connect suitable antennas to the output of the AC 3200-II�

The AC 3200-II active transmitter combiner can be used with either the

A 2003 UHF directional antenna, the A 1031 U omni-directional antenna or the

A 5000 CP circularly polarized UHF antenna� The antenna transmits the signals

of all connected transmitters�

The signals are combined onto the antenna output with no distribution attenu-

ation�

To connect an antenna:

Connect the antenna using a low-attenuation 50-Ω-coaxial cable�

Connect the coaxial cable to the antenna output 8�

AC 3200-II | 25

Connecting devices

Connecting a transmitter to the AC 3200-II

To connect a transmitter:

Connect the BNC cable of the transmitter to one of the eight RF inputs

RF IN 1 to RF IN 8 7�

77 77

Connecting the mains unit

Connect the mains cable (EU, UK or US version, depending on your location)

to the input socket on the NT 12-125D mains unit�

Connect the DC connector of the mains unit to the DC input socket 6 of the

AC 3200-II�

Connect the mains connector of the mains cable to the mains power supply�

NT 12-125D

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