Sennheiser AC 3200 - 09-08 User manual

Active Transmitter Combiner 8:1
AC 3200
Instruction manual

1
Contents
Contents
Important safety instructions ..................................................... 2
The AC 3200 active transmitter combiner 8:1 ......................... 5
Delivery includes ............................................................................. 5
Connection diagram ....................................................................... 6
Product overview ............................................................................ 7
Putting the AC 3200 into operation ........................................... 8
Preparing the AC 3200 for use ............................................... 8
Connecting the antenna ......................................................... 10
Connecting a transmitter to the AC 3200 .......................... 10
Connecting the mains cable .................................................. 11
Switching the AC 3200 on and off ....................................... 11
Recommendations and tips for optimum reception ............ 12
Cleaning the AC 3200 ................................................................... 12
If a problem occurs ... ................................................................... 13
Accessories and spare parts ....................................................... 14
Specifications ................................................................................. 15
Manufacturer Declarations ......................................................... 16

2
Important safety instructions
Important safety instructions
1. Read these instructions.
2. Keep these instructions. Always include these instructions when passing the
device on to third parties.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use the device near water.
6. Clean only with a dry cloth.
7. Do not block any ventilation openings. Install in accordance with these
instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves, or
other devices (including amplifiers) that produce heat.
9. The device should be operated only from the type of power source indicated on
the mains plug. The device must only be connected to properly grounded power
outlets.
10. Protect the mains cable from being walked on or pinched, particularly at plugs,
convenience receptacles, and the point where it exits from the device.
11. Only use attachments/accessories specified by Sennheiser.
12. Use only with the cart, stand, tripod, bracket, or table specified
by the manufacturer, or sold with the device. When a cart is
used, use caution when moving the cart/apparatus combination
to avoid injury from tip-over.
13. Unplug the device during lightning storms or when unused for long periods of
time.
14. Refer all servicing to qualified service personnel.
Servicing is required if the device has been damaged in any way, such as mains
cable or plug damage, liquid has been spilled, objects have fallen inside, the
device has been exposed to rain or moisture, does not operate properly or has
been dropped.
15. To completely disconnect the device from the AC mains, disconnect the mains
plug from the AC receptacle.
16. WARNING: To reduce the risk of fire or electric shock, do not expose the device to
rain or moisture.
17. Do not expose the device to dripping or splashing and ensure that no objects
filled with liquids, such as vases or coffee cups, are placed on the device.
18. The plug of the mains cable shall remain readily operable and easily accessible.

3
Important safety instructions
Hazard warnings on the rear of the
AC 3200 active transmitter combiner 8:1
The label shown on the left is attached to the rear of the
AC 3200. The symbols on this label have the following meaning:
This symbol is intended to alert the user to the presence of
uninsulated dangerous voltage within the AC 3200’s enclosure
that may be of sufficient magnitude to constitute risk of fire or
electric shock.
This symbol is intended to alert the user to the risk of electric
shock if the AC 3200 is opened. There are no user serviceable
parts inside. Refer servicing to qualified personnel only.
This symbol is intended to alert the user to the presence of
important operating and maintenance instructions in the
literature accompanying this AC 3200.
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 has used replacement parts specified by Sennheiser
or those having the same characteristics as the original part.
Unauthorized substitutions may result in fire, electric shock, or
other hazards.
Safety check
Upon completion of any service or repairs to this device, ask the
service technician to perform safety checks to determine that
the device is in a safe operating condition.

4
Important safety instructions
Intended use of the device
Intended use of the AC 3200 includes:
yusing the device for professional purposes,
yhaving read this instruction manual especially the chapter
“Important safety instructions” on page 2,
yusing the device within the operating conditions and
limitations described in this instruction manual.
“Improper use” means using the device other than as described
in this instruction manual, or under operating conditions which
differ from those described herein.

5
The AC 3200 active transmitter combiner 8:1
The AC 3200 active transmitter
combiner 8:1
With the AC 3200 active transmitter combiner, the signals of up
to eight Sennheiser wireless monitoring transmitters can be
combined onto a single antenna, 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
transmitters, please refer to the AC 3200 product page at
www.sennheiser.com.
The AC 3200 allows you to make high-quality 8-channel
transmission systems suitable for the following areas of
application:
yMulti-channel monitoring systems for stage use
yMulti-channel systems suitable for any application where
talk-back signals are to be transmitted (e.g. studio)
Delivery includes
1 AC 3200 active transmitter combiner 8:1
3 mains cable (EU/UK/US)
4 self-adhesive device feet
1 instruction manual

6
Connection diagram
Connection diagram
The below connection diagram shows the connections for an
8-channel system with a single antenna.
AC 3200

7
Product overview
Product overview
쐃Rack mount “ears”
쐇Air vents (on the sides)
쐋8 LEDs: operation indicators of the RF inputs
쐏LED
쐄On/off switch
쐂IEC mains socket
쐆8 RF inputs RF IN 1 to RF IN 8 for connecting the transmitters
쐊BNC socket for antenna output ANT
70 W

쐋쐏
쐂 쐊
쐆쐆쐆
쐆
쐇쐇
쐃
쐄
쐃

8
Putting the AC 3200 into operation
Putting the AC 3200 into
operation
Preparing the AC 3200 for use
You can set up the AC 3200 on an even surface or mount it into
a 19" rack.
Setting up the device
To ensure that the AC 3200 cannot slip on the surface on which
it is placed, four self-adhesive soft rubber feet are supplied.
CAUTION! Danger of heat damage to the devices!
During operation, the AC 3200 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:
왘Make sure that the air vents 쐇on the sides of
the AC 3200 are not covered or blocked and
provide ducts of sufficient size or allow
sufficient space to ensure a free air flow
between the devices.
왘Regularily clean the air vents on the sides of
the AC 3200 with a soft brush.
왘In order to avoid heat accumulation, make sure
to install the AC 3200 as the uppermost device.
왘Never stack more than two devices directly one
above the other!
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
possibility of staining.
왘Do not place the AC 3200 on delicate surfaces.