Cloud Z4II Manual de usuario

Z4II & Z8II ZONE MIXERS

Installation and User Guide

Z4II & Z8II Installation and User Manual v1.0 3

Contents

Safety Information .................................. 4

Safety Notes Regarding Installation................... 4

Conformities......................................................... 4

Safety Considerations and Information............. 4

Overview.................................................. 5

Introduction.......................................................... 5

Scope of this manual..........................................................5

What’s in the box ................................................. 5

Main Features ....................................................... 5

Optional System Components ........................... 6

DM-1 Dual Microphone Input Module..........................6

LM-1 Mic/line input module with remote music

control ..................................................................................6

RL-1 Remote Music Level Control.................................6

RSL-6 Remote Music Level/Source Control.................6

PM Series Paging Microphones........................................7

PM1 Paging Microphone....................................................7

Block Diagram...................................................... 7

Front Panel Description ...................................... 8

Rear Panel Description........................................ 9

Installation ............................................. 10

Hardware Considerations ................................. 10

Power Supply ...................................................... 10

Fuses and ratings.............................................................. 10

System Connections .......................................... 10

Music Sources................................................................... 10

Mono and stereo sources .......................................... 10

Balanced sources.......................................................... 10

Zone outputs.................................................................... 11

Unbalanced inputs........................................................ 11

Microphone inputs .......................................................... 12

Facility Ports ..................................................................... 12

Connecting a DM-1 remote input plate ................. 12

Connecting an LM-1 remote input plate ................ 12

Paging System connections............................................ 13

Connecting a PM4/8/12/16 paging mic.................... 13

Connecting a PM1 paging mic ................................... 14

Music Control .................................................................. 14

Connecting an RL-1 remote control plate............. 14

Connecting an RSL-6 remote control plate........... 15

Music Mute........................................................................ 15

Setting Up & Operation ....................... 16

Music Inputs........................................................ 16

Gain & level....................................................................... 16

Local/remote control...................................................... 16

Microphone Inputs ............................................. 16

Phantom Power ............................................................... 16

Gain & level....................................................................... 16

EQ....................................................................................... 16

High-pass lter ................................................................. 16

Paging mic input................................................. 16

Phantom Power ............................................................... 16

Gain & level....................................................................... 17

EQ & high-pass lter....................................................... 17

Zone Outputs ..................................................... 17

EQ....................................................................................... 17

Priorities.............................................................. 17

Mic 1/Mic 2 priority ........................................................ 17

Paging mic priority........................................................... 17

Line 6 priority................................................................... 17

Microphone priority over input at Facility Port ....... 17

Options and Additional Information ... 18

LM-1 and DM-1 active input plates – general

considerations..................................................... 18

Connecting multiple DM-1s.......................................... 18

Using the Facility Ports as auxiliary zone inputs ...... 19

RL-1 and RSL-6 remote control plates – general

considerations..................................................... 19

Control of music source and level via external DC 19

Music level ..................................................................... 19

Music source ................................................................. 20

Fitting Bose® Series II EQ cards ...................... 20

Appendix................................................ 22

Application example.......................................... 22

PCB jumper location and settings.................... 23

PSU capability and optional device current

consumption ....................................................... 25

Ground loops ...................................................... 25

EMC considerations ........................................... 25

Technical Specications........................ 26

General Specications ....................................... 26

Notes ...................................................... 27

Z4II & Z8II Installation and User Manual v1.04

Safety Notes Regarding

Installation

Do not expose the unit to water or moisture.•

Do not expose the unit to naked ames.•

Do not block or restrict any air vent.•

Do not operate the unit in ambient temperatures above•

35 °C.

Do not touch any part or terminal carrying the•

hazardous live symbol ( ) while power is supplied to

the unit.

Do not perform any internal adjustments unless you•

are qualied to do so and fully understand the hazards

associated with mains-operated equipment.

The unit has no user-serviceable parts. Refer servicing•

to qualied service personnel.

If the moulded plug is cut off the AC power lead for•

any reason, the discarded plug is a potential hazard and

should be disposed of in a responsible manner.

Conformities

This product conforms to the following European EMC

Standards:

BS EN 55103-1:1997

BS EN 55103-2:1997

This product has been tested for use in commercial and

light industrial environments. If the unit is used in controlled

EMC environments, the urban outdoors, heavy industrial

environments or close to railways, transmitters, overhead

power lines, etc., the performance of the unit may be

degraded.

The product conforms to the following European electrical

safety standard:

BS EN 60065:2002

The Z4II and Z8II were developed and manufactured with

high quality materials and components, which can be

recycled and/or reused.

Safety Considerations and

Information

The Z4II and Z8II must be earthed. Ensure that the mains

power supply provides an effective earth connection using a

three-wire termination.

Caution - High Voltages

Do not touch any part or terminal carrying the hazardous

live symbol ( ) while power is supplied to the unit.

Terminals to which the hazardous live symbol refers require

installation by a qualied person.

Caution - Mains Fuse

The internal PSU contains no user-replaceable fuses. Mains

over-current protection is provided by the fuse in the IEC

receptacle; only replace this fuse with one of an identical

type and rating.

Caution - Servicing

The unit contains no user-serviceable parts. Refer servicing

to qualied service personnel. Do not perform servicing

unless you are qualied to do so.

Disconnect the power cable from the unit before removing

the top panel and do not make any internal adjustments with

the unit switched on.

Only reassemble the unit using bolts/screws identical to the

original parts.

Safety Information

Z4II & Z8II Installation and User Manual v1.0 5

Introduction

Thank you for purchasing this Cloud Zone Mixer.We are

condent that you will be pleased with its performance,

features, exibility and reliability.

The Cloud Z4II and Z8II are versatile analogue multizone

audio mixers.They are intended to form part of permanent

sound systems in pubs, bars, restaurants, hotels, ofces,

factories and other areas, where multiple audio sources

(background music,TV sound, etc.) are in use and need to

be easily combined with announcements and/or paging in

one or more zones.They have been designed to interface

directly with industry-standard paging mic interfaces, and are

compatible with Cloud PM Series paging microphones.

Scope of this manual

This manual provides a comprehensive guide to the features

and functionality of the Cloud Z4II and Z8II Zone Mixers.

The two models are identical in facilities and features, and

differ only in the number of zones they support:

Model Z4II – four output zones

Model Z8II – eight output zones

Please read through the manual to become fully acquainted

with the numerous conguration and control functions the

units offer.

The manual is arranged as follows:

Overview – introduction to the Zone Mixers and their•

options.

Installation – wiring the Zone Mixers in a practical•

situation.

Setting Up & Operation – setting the system up and•

user instructions.

Options and Additional Information – additional•

information about system options.

Appendix – additional technical information. Includes•

technical specications.

The Z4II/Z8II manual includes full details of the optional

LM-1 and DM-1 remote input panels. Basic information

on interfacing Cloud PM Series paging microphones and

connecting the RL-1 and RSL-6 remote control plates is also

provided.This information is also supplied with each optional

item.

Thank you again for placing your condence in Cloud

products.

What’s in the box

Unpack the Z8II or Z4II and its accessories with care. It is

always a good idea to store all packaging (if practical), in case

you ever need to return the unit to your Cloud dealer for

any reason.

As well as this manual, the shipping carton should contain

the items listed below. Please contact your Cloud dealer

immediately if any of them are missing or damaged.

Cloud Z8•II or Z4II Zone Mixer

IEC mains lead (AC cord) with moulded plug•

appropriate to the territory

Set of mating connectors for all rear panel screw-•

terminal connectors

Main Features

6 stereo line inputs•

8 (Z8•II) or 4 (Z4II) balanced mono line outputs

2 microphone inputs (balanced), phantom power•

selectable

Separate paging mic input with contact closure zone•

selection

Per-zone facility port for optional remote line and/or•

mic input plates

Mic routing to all zones with programmable override•

logic

Per-zone front panel control of music level, music source•

and mic level

Supports per-zone remote control of music level and•

source

HF & LF EQ adjustment for each mic input and for•

music in each zone music output

Preset gain trim control for each mic and music input•

Line input 6 may have priority over other music inputs•

Accepts Bose® EQ cards•

External Music Mute input for interfacing with•

emergency systems

3U 19” rack-mounting unit•

Overview

Z4II & Z8II Installation and User Manual v1.06

control of zone music level and source.The music ducking

facility is also provided for the mic input. See page 12

(Connecting an LM-1 remote input plate) and page 18 (LM-1

and DM-1 active input plates) for more information.

RL-1 Remote Music Level Control

MUSIC LEVEL

456

RL-1

g.3: RL-1

The RL-1 is a small plate with a single control for locally

adjusting the music level in a zone. It is connected to one of

the mixer’s Music Control Ports. See page 14 (Connecting an

RL-1 remote control plate) and page 19 (RL-1 and RSL-6 Remote

control plates) for more information.

RSL-6 Remote Music Level/Source Control

345

456

SOURCE SELECT

MUSIC LEVEL

RSL- 6

g.4: RSL-6

The RSL-6 is the same size as the RL-1 and connects in a

similar way; it allows local music source selection as well as

music level control. See page 15 (Connecting an RSL-6 remote

control plate) and page 19 (RL-1 and RSL-6 Remote control

plates) for more information.

Optional System Components

The following components may form part of the audio

system and may be ordered separately if required.They may

also be retrotted to a system at a later time.

DM-1 Dual Microphone Input Module

g.1: DM-1

The DM-1 is an active input plate which allows one or two

microphones to be connected to the Zone Mixers in a

remote location. Each microphone has its own level control,

and overall preset HF/LF EQ controls are also provided.A

Music Ducking button activates the Zone Mixer’s priority

circuitry; when enabled, a microphone signal from the DM-1

will reduce the music level in the zone where it is installed.

The DM-1 connects to one of the unit’s Facility Ports,

and the microphone signals are fed to that zone only.The

mixer’s Mic 1 and Mic 2 inputs remain available. Multiple

DM-1s (in the same zone) may be daisy-chained to provide

mic inputs in more than one position. The DM-1 ts a

standard UK-style dual-gang electrical back box. See page

12 (Connecting a DM-1 remote input plate) and page 18 (LM-1

and DM-1 active input plates) for more information.

LM-1 Mic/line input module with remote

music control

g.2: LM-1

The LM-1 resembles the DM-1, but has one microphone

and one stereo line input, which provides a convenient

access point for the connection of a DJ mixer, laptop, MP3

player or similar.The plate also includes the functions of

the RSL-6 Remote Control Plate (see below), permitting

Z4II & Z8II Installation and User Manual v1.0 7

PM Series Paging Microphones

g.5: PM16

Cloud PM paging microphones may be connected directly to

the Z8II and Z4II. Models are available which can page to 4, 8,

12 or 16 zones. Clearly, not all zones on the ‘higher’ models

can be addressed with only one zone mixer. See page 13

(Connecting a PM4/8/12/16 paging mic) for more information.

g.7: Z8II Block Diagram

Block Diagram

The simplied block diagram below illustrates the basic signal architecture of the Z8II. Only the routing and logic for one zone

output is shown.The architecture of the Z4II is identical, the only difference being the number of zone outputs.

PM1 Paging Microphone

g.6: PM1

The Cloud PM1 paging microphone is also compatible with

the Z8II and Z4II. It is a much simpler unit which addresses

only one zone. See page 14 (Connecting a PM1 paging mic) for

more information.

Z4II & Z8II Installation and User Manual v1.08

POWER – latching push-button switch with integral

green LED

MUTE –red LED which illuminates when an external

Music Mute command is applied (i.e., from re control

panel, etc.) See page 15 (Music Mute)

Zone idents –a space is provided below each zone’s

controls for printed labels identifying the zone by name

Source idents – a space is provided beside Zone 1’s

source select control for printed labels identifying each

music source by name

Rack mounting ears – the unit may be rack-mounted

in a standard 19” equipment rack. It requires 3U of rack

height. See page 10 (Hardware considerations)

Front Panel Description

MUSIC SOURCE –6-way rotary switch selecting

which Line Input (1 to 6) will be the music source for

each zone. See page 16 (Local/remote control)

MUSIC LEVEL –adjusts the music level in each

zone. See page 16 (Music Gain & Level)

MICROPHONE 1 – adjusts the level of the

microphone connected at Mic 1 input in each zone. See

page 16 (Microphone Inputs Gain & Level)

MICROPHONE 2 – adjusts the level of the

microphone connected at Mic 2 input in each zone. See

page 16 (Microphone Inputs Gain & Level)

PAGING MIC LEVEL – adjusts the level of the

microphone connected at the Paging Mic input in each

zone.This is a preset control and is intended to be set

on installation and not readjusted by the user. See page

17 (Paging Mic Gain & EQ)

678

10 10

Note - The front panel of the Z8II is shown above.

The Z4II’s is identical, except that it only has controls for zones 1 - 4.

g.8: Z8II Front Panel

Z4II & Z8II Installation and User Manual v1.0 9

3456789

10 11 12 13 14

PAGING MIC ACCESS PORT – 10-pin 5 mm-pitch

screw-terminal connector for per-zone contact closure

paging access. See page 13 (Paging system connections)

ZONE OUTPUTS – 8 balanced outputs* for each

zone on 3-pin 3.5 mm-pitch screw-terminal connector.

See page 11 (Zone outputs)

ZONE EQ – HF & LF music EQ adjustment for each

zone output. See page 17 (Zone output EQ)

FACILITY PORT – 9-pin female Dsub per-zone, for

connection of remote input plates and other functions.

See page 12 (Facility Ports)

MUSIC CONTROL PORTS – 3-pin 5 mm-pitch

screw terminal connector per-zone, for connection of

RL-1/RSL-6 remote control plates. See page 14 (Music

Control)

LOCAL/REMOTE SWITCHES – determine

whether front panel music source controls will remain

active when remote control plates are connected (per-

zone). See page 14 (Music Control)

MUSIC MUTE – 2-pin 5 mm-pitch screw terminal

connector for connection of external emergency muting

relay (e.g. re control panel). See page 15 (Music Mute)

MAINS – Fused IEC receptacle for AC mains (includes

storage for spare fuse). See page 10 (Power Supply)

* Only 4 zone outputs on Model Z4II (Items

)

Rear Panel Description

LINE INPUTS –6 pairs of RCA (phono) sockets

(Line 1 to Line 6) for connection of music sources.

Inputs are stereo, summed internally to mono. See page

10 (Music sources)

LINE INPUT GAIN –preset trim control for each

input, providing ±10 dB of gain adjustment for input

level matching. See page 16 (Gain & Level)

MIC INPUTS – 2 balanced microphone inputs

(Mic 1 & Mic 2) on latching XLR sockets. See page 12

(Microphone inputs)

MIC GAIN – preset mic gain control for each input,

gain range 10 to 60 dB. See page 16 (Microphone Inputs

Gain & Level)

MIC EQ – HF & LF preset EQ controls. See page 16

(Microphone Inputs EQ)

PAGING MIC INPUT – dedicated balanced input

(XLR) for paging mic. See page 16 (Paging mic input)

PAGING MIC GAIN –as

. See page 17 (Paging

Mic Gain & level)

PAGING MIC EQ – as

. See page 17 (Paging Mic

EQ & high-pass lter)

Note - The rear panel of the Z8II is shown above.

The Z4II’s is identical, except that it only has output connections for zones 1 - 4.

g.9: Z8II Rear Panel

Z4II & Z8II Installation and User Manual v1.01010

Hardware Considerations

The Z4II and Z8II Zone Mixers are built in 3U-high 19” rack

mount enclosures. It is recommended that the Zone Mixer

is installed in a 19” rack wherever possible.The units are

approx. 160 mm deep, but 250 mm of rack depth should be

available to allow for rear connectors and cabling.

The Z4II and Z8II have low power consumption and there

are no thermal considerations other than ensuring that

the ventilation grilles are not obstructed once the mixer

is installed installed.The ventilation grilles are at the rear

(immediately above the AC input connector); in the bottom

panel (behind the AC mains switch), and in the side panels.

Other equipment may be installed above or below the Z4II/

Z8II within this constraint.

The choice of location will be dictated by the specics of the

system and building layout. It is recommended that wherever

possible, the Z4II/Z8II should be mounted in an equipment

rack along with as many of the music sources (CD players,

music servers,TV receiver boxes, etc.) and audio power

ampliers (driving the zone loudspeakers) as practical.

When deciding the Zone Mixer’s location, bear in mind

that access to it will probably be required even if a full

complement of remote controls is being tted as part of the

system, as some adjustments can only be made on the mixer

itself.

Power Supply

The European versions of the Z4II and Z8II operate on

standard 230V AC mains; alternative versions are available

which operate on 115 V AC.An IEC mains cable with a plug

appropriate for each country is supplied with the European

unit.The unit’s power consumption is 20 VA (Z4II) or 28 VA

(Z8II)

Fuses and ratings

The only user-accessible fuse is an AC mains fuse in the

IEC connector housing. Only replace a fuse with one of

exactly the same type.The table below gives the correct

fuse types.

VERSION RATING FUSE TYPE

230 V 125 mA 20 mm x 5 mm

slo-blo T125mA

115 V 250 mA 20 mm x 5 mm

slo-blo T250mA

The fuseholder may be accessed by prising the slide below

the connector open, using a small screwdriver.The holder

has an extra cavity for storing a spare fuse; note that the

“active” fuse is that in the inner cavity.

System Connections

Music Sources

Connect the system’s various music sources to LINE 1

to LINE 6.All line inputs offer unbalanced connection for

stereo sources on a pair of standard RCA jacks (phono

sockets).The sensitivity range available should allow most

standard items of audio equipment such as CD players,

PC-based music servers,TV tuners, etc., to operate at a

satisfactory level. Most equipment of this type will have

stereo unbalanced outputs, and as long as the source

equipment is adjacent to the Zone Mixer, normal phono-

phono leads can be used.Always avoid using pre-made leads

of an unnecessary length.

Mono and stereo sources

The Z4II and Z8II are mono mixers; the stereo line inputs

are summed internally to mono. Stereo sources should be

connected in a normal stereo conguration, using both L

and R inputs. If connecting a mono source with only a single

output, it may be connected to either the left or the right

input.

Balanced sources

If it is necessary to connect an item of source equipment

with a balanced output to the Zone Mixer, a balancing

transformer should ideally be connected between the source

and the unbalanced input. Suitable audio transformers, which

should have a ratio of 1:1, are readily available from major

audio component suppliers.The transformer(s) should

be mounted as close to the Zone Mixer as practical, and

housed in a screened enclosure if they are not individually

screened.The preferred connection method is shown in

g.10.

LEFT

SCN

Unbalanced

inputs

SCN

LEFT

SCN

Audio balancing transformers

RIGHT

SCN

Unbalanced

inputs

SCN

RIGHT

SCN

pin1ground

pin2hot

pin3cold

Balanced outputs (XLRs):

g.10: Balanced - Unbalanced wiring using transformer

If transformers are not available, a balanced source may

feed an unbalanced input directly as long as care is taken

over how the connections are made.A variety of design

techniques are in use to implement balanced outputs in

audio equipment, and some designs require different wiring

protocols to others. Installers are advised to check the

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