Opus WCU330 Installation Manual

WCU330

Wall Control Unit
Installation Guide

2

Contents

Introduction............................................................................................................................3

Installation notes ....................................................................................................................4

System options ......................................................................................................................6

Rear panel connections .......................................................................................................10

Keypad controls ...................................................................................................................12

Operating instructions..........................................................................................................14

Local source selection .........................................................................................................16

Remote control.....................................................................................................................17

Technical specifications .......................................................................................................18

Limited warranty...................................................................................................................19

This package should contain the following:

1 x Opus WCU330 (assembled), 1 x WCU330 faceplate, 2 x M3.5mm x 20 screws,
1 x installation guide.

3

The WCU330 is an in-wall, A-BUS

®

compatible amplified keypad with buttons for control of
speaker volume levels, Standby/On and source select (with compatible equipment), as well
as having an IR window for receiving remote control signals. The WCU330 can connect to
A-BUS

®

hubs (Opus MCU300), A-BUS®Ready receivers, or to the Opus 500 system as a
sub-zone control. The WCU330 then connects to speakers using conventional speaker
cable.

The WCU330 keypad fits into any wall and is available in white and stainless steel finishes,
with the ability to change the surrounds on the WCU330-WH with any MK Euro/Modular
surrounds, to complement various decorative schemes. The WCU330 is fitted to the wall by
fixing it into a standard single UK 47mm back-box. All knock-outs in the back-box should
be removed to provide maximum ventilation. Care should be taken in choosing a site for the
WCU330, and always refer to the precautions in this guide. Bear in mind it is not always
preferable to fit the WCU330 next to a light switch, particularly if the faceplates will differ.

Introduction

4

The WCU330 is fitted to the wall by fixing it into a standard UK 47mm depth single-gang
back-box (pattress). All knock-outs in the back-box should be removed to provide
maximum ventilation.

Where it is desired to fit a mains lighting switch, etc. next to a keypad, a barrier-box or two
single back-boxes must be used. Bear in mind it is not preferable to fit the keypad next to a
light-switch, particularly if the faceplate styles will differ. Only a qualified electrician should
attempt such installations.

Avoid fitting the WCU330 where there is line of sight to another WCU330 or Opus 500
system main-zone keypads. In such situations, both keypads may pick up the same
commands from a remote control and it will be difficult to control each zone independently.

Avoid fitting the WCU330 where there is line of sight to the source equipment for the
system. In such situations, the source equipment may directly pick up the same IR
commands as are picked up by the keypad and sent to the source equipment. This can
interfere with the remote operation of the source equipment.

Do not fit the keypad in areas directly lit by strong sunlight or where it will be strongly lit by
fluorescent tubes. These can be sources of infra-red energy which may interfere with the
remote control operation of the system. Some plasma televisions can radiate a great deal
of infra-red energy and care should be taken if fitting a WCU330 near a plasma screen
television. Avoid placing the WCU330 near to dimmer switches or other items which
generate a substantial amount of electrical noise.

Installation notes

5

Safety precautions

Care should be taken when choosing the site for a WCU330. The keypad must never be
installed in a back-box which also contains mains wiring or in areas of high humidity.

The WCU330 runs on 24V DC supplied through the connecting cable. As such there is no
mains voltage present in the WCU330 and the unit is often safe to fit in areas where only
extra low voltage (ELV) equipment is permitted. However, it is imperative that you always
check the wiring regulations in force for your application and area.

Faceplates

The WCU330 faceplate system is based on the 50 x 50 ‘easy-clip’ module standard and
is interchangeable with the wide range of faceplates made by manufacturers such as
MK Electric, RPP, etc. that conform to this standard. If it is desired to fit another faceplate,
it can be replaced by gently prising apart the WCU330 faceplate and snapping on another
in its place.

Fitting the keypad

Remove the supplied faceplate from the WCU330 by gently prising apart. It will ‘pop’ off.
Connect each wire in the Cat-5 cable to its respective terminal in the punch-down
connector on the back of the WCU330 (refer to the Cat-5 to WCU330 punch-down
connectors diagram in the ‘Rear panel connections’ section of this guide). The recommended
maximum length for use with standard Cat-5 cable is 30m in total from hub to keypad
(screened Cat-5 cable can also be used). After making the wiring connections, fit the
WCU330 to the back-box with the two supplied M3.5mm x 20 screws. Gently push the
faceplate back on to the module.

6

The WCU330 keypad can be used in two main configurations:

1. As part of a full Opus 300 system where it is plugged into an Opus hub (MCU300),
perhaps with other Opus accessories such as a video switching unit (VSU300) or local
input module (LIM300) fitted.

2. Where the keypad is plugged into the DZM amplifier as a sub-zone to the Opus 500
system or directly into an A-BUS

®

Ready/Opus Ready output of a compatible Opus (or
other brand) AV receiver or amplifier, no other accessories are possible other than the
required power supply and remote control/s.

The WCU330 has two modes of operation to support these configurations – Opus 300/
enhanced A-BUS

®

mode and Standard A-BUS®/Opus 500 mode. These modes are selected

by setting the Mode switch, located on the rear of the WCU330.

Note: Setting the Mode switch to the wrong setting can cause erroneous operation!

Full Opus 300 System

For use in a full Opus 300 System (see diagram opposite) the Mode Switch must be in the
‘Opus 300’ (enhanced A-BUS

®

) position as shown below:

System options

WCU330-EU rear

Please consult the MCU300 Opus Multi-Room Installation Guide for full details of the
various options available for the full Opus system.

7

Speaker cable

PSU65

Speaker cable

OS165CCOS165CC

MCU300

Cat-5/5e cable

WCU330-EU WCU330-EU

8

A-BUS®Ready/Opus 500 System

For use with an A-BUS®Ready/Opus 500 System (see diagram opposite) the Mode switch
must be in the ‘Standard A-BUS

®

/Opus 500’ position as shown below:

WCU330-EU rear

In this configuration the keypad is wired directly to the Opus DZM amplifier. It is not possible
to switch sources using the hard buttons on the WCU330, but this can be achieved by using
Opus remote controls.

Commands received by the keypads can now be sent back to the source equipment via the
Opus 500 System. It is then possible to control the source equipment from the remote
rooms by using the source equipment's own remote controls or through a learning remote.
The Opus Learning Remote can fully control the keypads, ‘learn’ the source's remote
controls and change source input on the amplifier, etc.

9

OS165CCOS165CC

WCU330-EUWCU600

BTC1 cable

Speaker cable

MAIN ZONE

Master Bedroom

SUB-ZONE

En-suite bathroom

DZM20

MCU500

10

1. Cat-5 to WCU330 punch-down connectors

A Cat-5 cable (terminated with an RJ45 jack plug) is used to connect the WCU330 to
an Opus MCU300 hub or A-BUS

®

Ready receiver. The WCU330 has punch-down
connectors for the eight individual conductors of the Cat-5 cable. To terminate the
cables, use a Krone punch-down tool.

Rear panel connections

View from

contact end

Gather pairs,
trim and insert
into RJ45 plug

Crimp wires

securely in

place

R+R-L-L+

6

5

2

3

4

1

R+

R- L- L+

RJ45 Cat-5 Opus

plug cable signal

1 green/white Left speaker (-)
2 green Left speaker (+)
3 orange/white Right speaker (-)
4 blue IR
5 blue/white Status
6 orange Right speaker (+)
7 brown/white Power (GND)
8 brown Power (+24V)

brown/white

brown

blue/white

blue

green/white

green

orange/white

orange

11

Line-in/Line-out

connections

on subwoofer

Screened audio cable

Preamp output
connections on
rear of WCU330

2. Gain adjust

The maximum output of the WCU330 can be limited by turning these down.
Alternatively, if the sound level is too quiet, the Gain can be turned up.

3. Mode switch

Selects between Opus 300 mode and Standard A-BUS®Ready/Opus 500 mode.

4. Speaker output

Connect to a pair of speakers with two runs of standard high-quality speaker cable.
Speakers of at least 88dB SPL for 1W @ 1 metre efficiency should be used with the
WCU330. Speakers from 4–8 ohms can be used. The Opus OS165CC speakers are an
ideal match.

5. CKU330 option

Allows control of source equipment via an Opus learning keypad as part of the CKU
combined keypad unit.

6. Preamp output

A preamp output is provided for optional use driving a powered subwoofer or auxiliary
amplifier. Connection from the preamp output to other equipment should be by
screened audio cable.

12

The six LEDs indicate the function status of
the WCU330. Listed below are each of the
functions of the corresponding LEDs:

1. Minimum volume/Source select

2. Volume/Source select/Bass adjust/
Local Source Selection mode

3. Volume/Source select/Treble adjust/
Local Source Selection mode

4. Volume/Source select/Balance adjust/
Local Source Selection mode

5. Volume/Source select/Fader adjust/
Local Source Selection mode

6. Maximum volume/Source select

For full instructions on volume adjustment,
source selection, sound adjustment and
local source selection modes, refer to the
‘Operating instructions’ section of this guide.

Keypad controls

1

2

3

4

5

6

7

8

10

11

9

12

13

7. Standby/On

Press to switch the keypad between On and Standby mode. By pressing and holding
the Standby button for about two seconds, all WCU330s connected to the MCU300
hub will be turned off. If the WCU330 is connected to an Opus DZM amplifier as part of
an Opus 500 System, then the standby button only controls the keypad.

8. Volume up

Press to increase the volume or other sound adjustment.

9. Source select (right)

Use this key to select the current active source.

10. Volume down

Press to decrease the volume or other sound adjustment.

11. Source select (left)

Use this key to select the current active source.

12. IR window

Point the Opus Learning Remote towards this window. A small flashing LED behind
this window indicates operation.

14

Operating instructions

Important!

As mentioned previously, the WCU330 can be switched between two modes of operation –
a standard A-BUS

®

mode for compatibility with other manufacturers’ A-BUS®Ready

equipment (Standard A-BUS

®

/Opus 500 mode) or when used as a sub-zone keypad in the

Opus 500 System, and an Opus MCU300 hub mode (Opus 300/enhanced A-BUS

®

mode).

When used with other manufacturers’ A-BUS

®

Ready equipment, the keypad must be

switched to ‘Standard A-BUS

®

/Opus 500’ mode or the equipment will not work.

Volume adjustment

Volume is adjusted using the volume up and volume down buttons on the keypad or
remote. This is indicated on the keypad by the intensity of the blue LED lights, of which
there are four levels of intensity.

Source selection

The Source left and right buttons allow you to choose from multiple connected sources.
The LED display will indicate which source is selected.

Sound adjustment modes

Pressing the Power/Standby button while holding the Volume down key activates the
sound adjustment modes. The four central LEDs on the keypad will then light in sequence
to indicate each of the four sound adjustment modes: Bass, Treble, Balance and Fader.
These modes can also be activated using the Select button on the remote control.

After holding down both buttons for a short period, the second LED on the keypad will light
indicating that the Bass adjust mode has been activated. In this mode, pressing the
Volume up or down keys will adjust the bass (low frequencies) level.

15

Continuing to hold down both keys will light the
third LED indicating that the Treble adjust mode
has been activated. In this mode, pressing the
Volume up or down keys will adjust the treble
(high frequencies) level.

Continuing to hold down both buttons will light
the fourth LED indicating that the Balance adjust
mode has been activated. In this mode, pressing
the Volume up or down keys will adjust the sound
level between the left and right speakers.

Continuing to hold down both buttons will light
the fifth LED indicating that the Fader adjust
mode has been activated. In this mode pressing
the Volume up or down keys will adjust the
balance between the main speakers and anything
that is connected to the preamp output. This
adjustment is relevant only if the preamp output is
used. The Volume up and down buttons on the
remote control can also be used to adjust the
sound in each mode.

Note: If no adjustment is made, the system will automatically go back to volume adjustment
after two seconds.

Bass Treble Balance Fader

16

Note: This feature is only available if the WCU330

is part of a full Opus 300 multi-room system with
one or two Local Input Modules (LIM300) fitted.

The local source selection mode will need to be
activated to configure the WCU330 correctly. This
mode is only available when the Mode Switch is
set to ‘Opus 300’ (enhanced A-BUS

®

) mode.
LIM300s can only be used in this mode. Please
refer to your LIM300 Installation Guide for more
information.

Pressing the Select left or right buttons on the
keypad allows you to rotate through all six
sources as default. However, it is possible to
allow the addition of one or two local sources by
accessing Local source selection mode. To
enter this mode press the Volume up button
simultaneously with the Power button for four
seconds; the LED display will then scroll through
the sequence shown in the illustration at right and
described as follows:

After holding down both buttons for a short period, LED 2 will light indicating that Sources
1–6 (default) are available for selection.

Continuing to hold down both keys will light LED 3 indicating that Sources 1–6 and Local
Source 1 mode are available for selection.

Continuing to hold down both buttons will light LED 4 indicating that Sources 1–6, Local
Source 1 and Local Source 2 mode are available for selection.

Local source selection

2 3 4 5

17

Continuing to hold down the Volume up and Power buttons will light LED 5, indicating that
Off mode is available for selection and no source will be selected.

To select these modes, wait till the corresponding LED is lit and then release Power and
Volume up buttons.

Note: If no adjustment is made, the system will automatically go back to volume
adjustment after two seconds. If ‘Standard A-BUS/Opus 500’ mode is selected on the
Mode switch, the WCU330 will only rotate around the main six sources.

Remote control

The WCU330 can be used with the Opus LRC300 remote control, a
sophisticated learning remote which is able to learn the codes of all
the source equipment remotes. Once programmed the user can thus
use the LRC300 to perform all operations from one remote.

The LRC300 is also suitable where the WCU330 is connected to the
A-BUS

®

Ready outputs of AV receivers and amplifiers other than an
Opus hub. It can learn the relevant source change commands, etc. of
the receiver or amplifier, as well as the source equipment.

Note: Please refer to the Opus LRC300 manual for further information.

18

Input impedance 45kohms

Frequency response 20Hz - 20kHz +/- 1dB

THD <0.2% @ 1W, 20Hz - 20 kHz

S/N ratio >80dB ‘A’ weighted

Volume control range -80dB, 36 steps

Bass control range +/- 16dB, 2dB steps

Treble control range +/- 16dB, 2dB steps

Balance control range +/- 40dB, nine steps either way

Preamp output Variable level, follows volume setting

IR pass-through 34-40 kHz and 54-58kHz

modulation frequencies supported

Speaker impedance 4-8ohms

Power requirement 24V DC @ 1A max (supplied by hub)

Technical specifications

19

Opus warrants this product to be free from defects in materials and workmanship (subject to the terms set
forth below). Opus will repair or replace (at Opus’s option) this product or any defective parts in this
product. Warranty periods may vary from country to country. If in doubt consult your dealer and ensure
that you retain proof of purchase.

To obtain warranty service, please contact the Opus authorised dealer from which you purchased this
product. If your dealer is not equipped to perform the repair of your Opus product, it can be returned by
your dealer to Opus or an authorised Opus service agent. You will need to ship this product in either its
original packaging or packaging affording an equal degree of protection.

Proof of purchase in the form of a bill of sale or receipted invoice, which is evidence that this product is
within the warranty period, must be presented to obtain warranty service.

This warranty is invalid if (a) the factory-applied serial number has been altered or removed from this
product or (b) this product was not purchased from a Opus authorised dealer. You may call Opus or your
local country Opus distributor to confirm that you have an unaltered serial number and/or you purchased
from a Opus authorised dealer.

This warranty does not cover cosmetic damage or damage due to acts of God, accident, misuse, abuse,
negligence, commercial use, or modification of, or to any part of, the product. This warranty does not
cover damage due to improper operation, maintenance or installation, or attempted repair by anyone
other than Opus or a Opus dealer, or authorised service agent which is authorised to do Opus warranty
work. Any unauthorised repairs will void this warranty. This warranty does not cover products sold AS IS or
WITH ALL FAULTS.

REPAIRS OR REPLACEMENTS AS PROVIDED UNDER THIS WARRANTY ARE THE EXCLUSIVE REMEDY
OF THE CONSUMER. OPUS SHALL NOT BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL
DAMAGES FOR BREACH OF ANY EXPRESS OR IMPLIED WARRANTY IN THIS PRODUCT. EXCEPT TO
THE EXTENT PROHIBITED BY LAW, THIS WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER
EXPRESS AND IMPLIED WARRANTIES WHATSOEVER INCLUDING, BUT NOT LIMITED TO, THE
WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PRACTICAL PURPOSE.

Some countries and US states do not allow the exclusion or limitation of incidental or consequential
damages or implied warranties so the above exclusions may not apply to you. This warranty gives you
specific legal rights, and you may have other statutory rights, which vary from state to state or country to
country.

For any service, in or out of warranty, please contact your dealer.

Limited warranty

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La version française de ce manuel est disponible sur le site:

La versión en español de este manual está disponible en:

La versione in lingua italiana di questo manuale è disponibile sul sito:

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www.opus.eu/manuals

Made from recyclable material
Part No. AP23640/1

This guide is designed to make using the WCU330 as easy as possible.
Information in this document has been carefully checked for accuracy; however, no guarantee is given to
the correctness of the contents. The information in this document is subject to change without notice.
If you notice any errors please feel free to email us at: [e-mail]

Copyright

© Copyright Opus Technologies Ltd 2008. This document contains proprietary information protected by
copyright. All rights are reserved. No part of this manual may be reproduced by any mechanical, electronic
or other means, in any form, without prior written permission of the manufacturer.

Trademarks

All trademarks and registered trademarks are the property of their respective owners.

A-BUS and A-BUS Ready are a registered trademarks of LeisureTech Electronics Pty Ltd.
This product may be covered by one of more of the following patents: US 7,181,023, 6,389,139,
EP 1004222, AU 739808, NZ 502982, Mexico Z41196, Canada CA2301062.

Opus is committed to providing the highest levels of service and support.
For full details of this product visit the Opus website:

www.opus.eu