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DCM1
User Manual
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Cloud Electronics DCM1 User Manual

DCM1 & DCM1e
Digitally Controlled Zone Mixers
Installation and User Guide
DCM1 & DCM1e Installation and User Guide v1.0
Contents
Safety Information ......................................................................................................................... 4
Safety Notes regarding Installation ............................................................................................................................ 4
Conformities ................................................................................................................................................................... 4
Safety Considerations and Information .................................................................................................................... 4
Welcome ......................................................................................................................................... 5
Section 1: Overview ....................................................................................................................... 6
Introduction .................................................................................................................................................................... 6
List of Main Features ..................................................................................................................................................... 6
System Components ..................................................................................................................................................... 7
Optional components ................................................................................................................................................... 7
ME-1 Series .................................................................................................................................................................. 8
PM Series Paging Microphones ................................................................................................................................ 8
Cloud DCM1 Utility Tool ............................................................................................................................................. 8
System Capabilities ........................................................................................................................................................ 9
Paging mic facilities ..................................................................................................................................................... 9
Zone Outputs ............................................................................................................................................................. 9
Misc .............................................................................................................................................................................. 10
Applications and Examples ........................................................................................................................................11
Section 2: Installation ................................................................................................................... 14
Description of front panel ........................................................................................................................................ 14
Description of rear panel ...........................................................................................................................................15
Hardware considerations ...........................................................................................................................................17
System Connections ................................................................................................................................................... 17
Zone Outputs ........................................................................................................................................................... 18
Mic and Line Input Modules ................................................................................................................................... 22
Connecting Paging systems ........................................................................................................................................23
Cloud PM Paging Microphones..............................................................................................................................23
Music Mute ....................................................................................................................................................................26
Section 3: Conguration .............................................................................................................. 27
User Mode .................................................................................................................................................................... 28
Music menu ................................................................................................................................................................ 28
DCM1 & DCM1e Installation and User Guide v1.02
Installer Mode ............................................................................................................................................................... 30
Music Menu ................................................................................................................................................................30
Routing Menu ............................................................................................................................................................32
System Menu ............................................................................................................................................................. 35
Priorities Menu ..........................................................................................................................................................40
Groups Menu .............................................................................................................................................................46
Other DCM1 adjustments .........................................................................................................................................46
Zone Paging Levels ................................................................................................................................................... 47
Setting up levels for best performance ................................................................................................................ 47
CDR-1 Series Remote Control Plates .................................................................................................................... 47
User Operation .........................................................................................................................................................47
Section 4: Software control ......................................................................................................... 51
Controlling the DCM1e from the browser interface .......................................................................................... 51
Initial Login – User Mode .......................................................................................................................................52
Login – Installer Mode ............................................................................................................................................. 53
Conguring the DCM1 with the DCM1 Utility Tool ........................................................................................... 58
Connecting to the DCM1.......................................................................................................................................58
Using the Utility Tool ...............................................................................................................................................59
Section 5: Appendix ...................................................................................................................... 62
Larger systems – cascading DCM1s ........................................................................................................................ 62
Serial Control ............................................................................................................................................................... 66
Conguring the Paging Access Connector as a GPIO port ............................................................................... 67
PSU capability ............................................................................................................................................................... 69
RJ45 pinout .................................................................................................................................................................... 69
Fitting loudspeaker EQ cards .................................................................................................................................... 70
Firmware updates ........................................................................................................................................................ 70
Factory default settings – menu options ................................................................................................................71
Factory default settings – network settings ...........................................................................................................71
Cloud DCM1 Conguration Notes – to be left with User ...............................................................................72
To Change the Music Source in a Zone ..............................................................................................................72
Cloud DCM1 Installer conguration notes ........................................................................................................73
EMC considerations .................................................................................................................................................... 75
Specications ................................................................................................................................................................ 75
DCM1 & DCM1e Installation and User Guide v1.0 3
Safety Information
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 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 mains 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 55103-1:2009 BS EN 55103-2:2009
Safety Considerations and Information
The DCM1 and DCM1e are powered by separate Power Supply Units (PSUs), which must be earthed. Ensure that the mains power supply provides an effective earth connection using a three-wire termination.
Mains Fuse
The PSU is a sealed unit and contains no user-replaceable fuses. Mains over-current protection is provided by the fuse in the 13 A plug, which should be rated at 5 A.
Caution – Servicing
The unit contains no user-serviceable parts. Refer servicing to
qualied personnel. Do not perform servicing unless you are qualied to do so. Disconnect the power supply 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.
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 (+A2:2010)
DCM1 & DCM1e Installation and User Guide v1.04
Welcome
Thank you for purchasing this Cloud DCM1/DCM1e, which
combines the traditional simplicity of Cloud products with
far greater functionality. We are condent that you will be pleased with its performance, features, exibility and reliability.
The DCM1 is Cloud’s digitally controlled zone mixer. It
combines traditional “installer-friendly” analogue I/O and
signal path, with the exibility and adaptability of digital control.
The Ethernet-enabled DCM1e version allows the control and
conguration of the unit to be performed remotely, using a
standard Internet browser.
Scope of this manual:
This manual provides a comprehensive guide to the features and functionality of the Cloud DCM1 and DCM1e Digitally Controlled Zone Mixers. Please read through it to become
fully acquainted with the many conguration and control
functions it offers.
DCM1 and DCM1e variants:
This Installation and User Guide covers two DCM1 variants – the DCM1 and the DCM1e.
Note that the DCM1e has various additional features not available in the DCM1; however, all DCM1 functionality is provided by the DCM1e.
Certain sections of the Guide cover topics that are only relevant to the DCM1e; these are clearly indicated by this all text references to “DCM1”, and all information and
instructions may be taken as being applicable to either version, unless specically stated otherwise.
logo. Otherwise, throughout the Guide,
It is recognised that the tasks of design/set-up, physical
installation and day-to-day operation of an audio system based on the DCM1 may be performed by as many as three
different people. You will nd, therefore, that this manual is
divided into sections:
 Overview – introduction to the DCM1 and its
options. Everyone should read this.
 Installation – wiring the DCM1 in a practical
situation. This should be read by the engineer
performing the installation and wiring.
 Conguration – setting the system up. This
should be read by the systems designer/engineer
who will congure the system to suit the user’s
particular requirements.
 Software control. Read this section if you want to
use the Utility Tool to congure the DCM1, or use
the Ethernet browser interface of the DCM1e to control the unit from an external computer, tablet or other device.
 Appendix – additional technical information.
Includes notes about controlling the DCM1 remotely via RS-232, and using multiple DCM1s to create larger systems.
 User Templates – User’s operating
instructions. A set of blank templates which can
be completed and left with the user when the
installation is nished, “personalising” the DCM1’s
menu system to the particular installation.
The manual includes details of the optional CDR-1 remote control plates and the various optional remote input modules. This information is also supplied with each item when they are purchased separately.
Thank you again for placing your condence in Cloud products.
What’s in the box
Unpack the DCM1 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 DCM1 Digitally Controlled Zone Mixer
• Universal DC Power Supply Unit (100-240 V), with DC
cable
• IEC mains lead (AC cord)
• Set of mating plugs for all rear panel multi-pin screw
terminal connectors
DCM1 & DCM1e Installation and User Guide v1.0 5
Section 1: Overview
Introduction
The Cloud DCM1 is an analogue audio Multi-Zone Mixer. A digital control system, using a front-panel LCD display and a simple, minimal set of controls replace the relatively large number of switch and rotary controls found on conventional
units, yet provide far greater exibility of conguration than
would be possible with such units. It provides a wide range of input and output connectivity possibilities to suit most
practical situations. It also offers simple and exible remote
control in addition to front-panel operation.
The DCM1 has been designed to provide a simple, reliable and elegant method of providing audio in a number of
different zones, typically the various areas of shops, bars, hotels, schools, conference centres, ofces, factories and even private residences. Local (per-zone) remote control of music
source and level can be simply provided in as many of the
zones as necessary. The DCM1 has been designed to allow
easy integration with mic and line external inputs, paging
microphones and re alarm systems. Once set up, the DCM1 allows zones to be combined (and separated) simply, as space
utilisation of the building demands.
An important aspect of the DCM1’s design is that it is completely self-contained, and can if wished, be completely
congured and controlled without a computer interface of any kind. If a computer interface is preferred, the DCM1
Utility Tool software application may be downloaded free of charge from www.cloud.co.uk. The DCM1e variant includes
the additional capability of being congured and controlled
from an Internet browser running on any compatible device via an Ethernet connection.
The DCM1 allows connection of up to eight line-level sources
such as CD players, audio jukeboxes, PC sound cards, radio or
TV tuners, etc. In addition, both Cloud paging microphones (PM or CDPM Series) and third-party paging systems may be directly connected. Each of the eight outputs is intended
to supply audio to a separate zone. Two of the zone outputs
are available in stereo. Any one source can be routed to
any zone, and the music level in each zone can be adjusted
independently.
List of Main Features
• 8 stereo line inputs (1 balanced)
• 8 balanced line outputs (2 stereo + 6 mono)
• 4 dedicated ports for optional remote line input
modules
• 4 dedicated ports for optional remote mic input
modules
• Mic paging to all zones with fully programmable override
logic
• Separate analogue paging mic input with zone selection
by contact closure
• Paging access port may be recongured as 8-way GPIO
port
• Separate RJ45 interface for PM or CDPM Series digital
paging microphones
• Supports multiple CDR-1 Remote Control Plates
(optional) in any wiring conguration
• CDR-1 provides local control of source, level, EQ and
group enable
• 2 x 16 character LCD dot-matrix display (both DCM1
and CDR-1)
• 4 denable zone groups
• Any line input may have priority in any zone; operation
also congurable per-zone
• Key-protected “Installer” mode (both DCM1 and
CDR-1) prevents user access to conguration menus
• Inputs, zones and groups can be named
• Ethernet port for remote control from standard
Internet browser (DCM1e only)
• RS-232 interface for control by third-party control
systems
• Transmission of RS-232 serial data for control of
external equipment (DCM1e only)
• Front-panel LEDs conrm remote access
• Accepts per-channel loudspeaker EQ cards
• PC-free control/conguration if preferred
• Multiple DCM1s may be cascaded for larger systems
• External Music Mute input for interfacing with
emergency systems
• Any input (mic or line) may be assigned as Emergency
Input, overriding Music Mute
• 2U 19” rack-mounting unit
The capabilities of the DCM1 and DCM1e are explained in greater detail in System Capabilities on page 9.
DCM1 & DCM1e Installation and User Guide v1.06
System Components
DCM1/DCM1e
The DCM1 (or DCM1e) is the system “core” and all the
primary audio input sources, zone amplier inputs, paging
mics/control and all remote controls are connected directly
to it. The DCM1 mainframe should ideally be rack-mounted along with the audio sources and zone ampliers, in a central
equipment area.
A practical multi-zone audio system is perfectly realisable with a DCM1 alone, but system exibility and ease of operation
will be greatly enhanced by the addition of optional Cloud remote controls and/or local input modules.
Installing a DCM1e will add the considerable advantage of external control from a laptop, tablet or other compatible device using a standard browser application.
Optional components
CDR-1 Series
The CDR-1 provides the user with local source selection and
level control for the zone in which it is tted. It additionally allows selection of any zone groups to which the zone has
been assigned, which gives simple and complete control over audio in multiple areas which may be split or joined in different ways at different times.
Once enabled on the DCM1 and a local key code entered, zone EQ is also adjustable from the CDR-1, allowing audio optimisation from within the zone itself. An Installer Mode permits zone assignment and adjustment of other installation
parameters.
CDR-1 variants:
Throughout this manual, all references to “CDR-1” apply equally to the CDR-1 and the CDR-1F.
LE-1 Series
The CDR-1 Series is a range of remote control plates
specically designed for use with the DCM1. They are
available in formats suitable for surface mounting (CDR-1)
or ush mounting (CDR-1F), and also in various nishes. They may be tted into standard electrical back boxes in whatever location is convenient in each zone. Any zone may have one
CDR-1, more than one, or none at all. The DCM1 can support up to 100 CDR-1s. CDR-1s are interconnected with just one standard Cat 5 UTP cable; units may be daisy-chained at will
and/or connected individually back to the DCM1’s four CDR
ports using almost any wiring topology convenient for the installation.
The DCM1’s own PSU has the capacity to power up to 8 CDR-1s directly, via the Cat 5 connections. However, please note that the actual number that can be powered directly is also dependent on cable length. Full details are provided with each CDR-1; also see “Cable length and DC power considerations” on page 21.
LE-1 version illustrated
The LE-1 Series is a range of input connector modules which can be installed wherever required. Versions are available to
t standard UK (LE-1) or US (LE-1A) dual-gang electrical back boxes, or in a “Media” format (LE-1M), which ts a Euro-
style 100 x 50 mm mounting frame. All versions are available
in either black or white. They allow connection of a stereo
unbalanced line-level audio source, such as a portable music player, laptop, radio mic receiver or similar, and connect to one of the DCM1’s Extension Ports with a single screened Cat 5 cable.
Multiple LE-1s may be “daisy-chained” together to provide
input points at different locations in the same zone. Signals
applied to modules wired in this way will be summed together. An internal gating circuit on each module automatically “disconnects” any chained modules which are not in use, to minimise noise contribution.
The LE-1’s inputs are electronically buffered to minimise noise
and interference pickup, and input gain is locally adjustable
with a preset control. Two types of input connector are
provided for user convenience: dual phono sockets and a
3.5 mm stereo jack socket; ±12 dB of gain trim adjustment is
available on the faceplate.
Any audio connected to an LE-1 is treated as any other source
and can be routed to any zone in the same manner.
DCM1 & DCM1e Installation and User Guide v1.0 7
BE-1 Series
BE-1 version illustrated
The BE-1 Series is a range of input connector modules of similar type to the LE-1. They provide a stereo balanced line­level input, permitting professional audio equipment with balanced outputs such as mixing consoles or DI boxes to be
connected. Like LE-1s, they connect to one of the DCM1’s
Extension Ports with a single screened Cat 5 cable.
BE-1s may be daisy-chained in the same way as LE-1s, and the two types of module may be intermixed.
Two industry-standard latching 3-pin female XLR connectors
are tted.
Any audio connected to the BE-1 is treated as any other
source and can be routed to any zone in the same manner.
ME-1 Series
PM Series Paging Microphones
The Cloud PM Series of paging microphones integrate directly with the DCM1 and provide a simple and convenient method
of adding multi-zone paging facilities to the audio system.
Multiple PMs can be easily daisy-chained if more than one paging location is needed.
PM paging microphones are available in 4, 8, 12 and 16-zone versions, The 4- and 8-zone versions are also available as ‘SA’
versions, with internal digital sound stores for pre-recorded
announcements. The PM1 single-zone mic is also compatible
with the DCM1.
Note that the earlier Cloud CDPM range of paging microphones is also directly compatible with DCM1 mixers.
ME-1 version illustrated
The ME-1 Series of input connector modules provide one (ME-1M) or two (ME-1, ME-1A) balanced microphone inputs, and are useful in multi-purpose areas where mics are sometimes needed. ME-1 modules have adjustable mic level and EQ per input, and connect to one of the DCM1’s four dedicated Mic Inputs with a single screened Cat 5 cable. On the two-input versions of ME-1, the inputs are mixed together at the module, and the summed mic signal applied to the DCM1.
Any of the DCM1’s mic inputs can be routed to any zone
without restriction.
Inputs on the ME-1 are via latching 3-pin female XLR connectors. 12 V phantom power is available on either input if required (set via a jumper accessible from the rear of the module).
Full installation and operation instructions are supplied separately with each paging microphone.
Cloud DCM1 Utility Tool
This is a simple software application which allows the DCM1
to be congured using serial data commands, either via its
RS-232 port or Ethernet port* from an external computer or other compatible device. Most of the unit’s menu functions are available in the Utility Tool, and it provides a convenient
method of pre-conguring a DCM1 off-site, and then loading
all the settings into the unit at a later time.
The Utility Tool is freeware, and can be downloaded from the Cloud website, www.cloud.co.uk.
A description of each DCM1 menu function can be found in
the “Conguration” section of this manual: all corresponding
Utility Tool functions are denoted here by the symbol.
A full description of the Utility Tool can be found on page 58.
* An updated version of the Utility Tool additionally allowing serial-via-TCP/IP over an Ethernet connection will be available during 2014.
UTILITY
DCM1 & DCM1e Installation and User Guide V1.08
System Capabilities
EXTENSION PORTS
ONLYRIGHT STEREO SIGNAL SHOWN FOR CLARITY.
LINE 3
LINE 4
LINE 5
LINE 6
LINE 7
LINE 8
R
L
LINE 8
3
+
BALANCED
2
R
1
3
+
2
L
1
LINE 2
LINE 1
LINE 2
LINE 1
LINE 3
LINE 4
LINE PRIORITY
LOGIC
+12V
SOURCE SELECT LOGIC
PAGINGACCESS
Z5
Z6Z7Z8 0V
Z2Z1Z3Z4
CDPM THRU
CDPM IN
PAGING
MICROPHONE
INPUT
GAINISAPPLIED
ACCORDING TO
SOURCE SELECTED
ZONES 3...8.SIGNALS ARE SUMMED TO MONO BEFORE SOURCE SELECT.
The simplied block diagram above illustrates the basic signal
architecture of the DCM1. Only the routing and logic for one
zone output is shown.
The main system and interfacing capabilities of the DCM1 are listed below:
CDR-1 PORTS
PORT
A
PORT
A
EQ CONTROL BY CDR-1IS ONLY AVAILABLEIN ENGINEER MODE
GAIN
PAGING ACCESS
+
+
3 2 1
LOGIC
+
PORT
B
PORT
B
ATTENUATOR
MICROPHONE INPUTS
MIC1
MIC2
EQ
EQ
Zone Outputs
• Eight balanced line level zone outputs
• Zones 1 & 2 are stereo, 3 to 8 are mono
Zone Groups
MIC PRIORITY
VCA
MIC3
ZONES 1 AND 2 ARE STEREO ZONES 3...8 ARE MONO
MIC4
SPE
+
3 2 1
Music sources and routing
• Provision for eight music sources. Inputs are stereo, line-
level and unbalanced
• Input 8 also available as a balanced input
• Inputs 1 to 4 may be fed from LE-1 or BE-1 input
modules (see above), which have a balanced connection
via dedicated input sockets
• Any music source may be routed to any zone
• Inputs available for selection may be dened, per-zone
Microphone inputs
• Provision for four ME-1 mic input modules, each of
which can accept two microphones (except the single-
input ME-1M).
• Each mic input assignable to any zone in any
combination
Paging mic facilities
• RJ45 digital interface for PM/CDPM Series paging
microphones
• Additional balanced input for third-party paging mic
• Per-zone contact closure routing for third-party mic
• Both PM and third-party systems may be used together;
independent gain controls.
• HF/LF EQ adjustment of paging signal
• Paging level independently adjustable per-zone
• Zones may be assigned in any combination to four Groups
• Groups can be enabled/disabled by user as required
• Groups have same source selection functions as zones
Priority and Logic
• Any music source may be assigned as priority line input,
per-zone/group. If enabled, a signal at the priority input overrides the source selection in the zone/group
• Priority music source may be a source normally
unavailable to a zone
• One or more priority mic inputs may be similarly
dened; an active mic signal causes the music level to reduce (“ducking”)
• During Paging, music ducking may be triggered by the
paging signal or zone selection; it can also be disabled; these options are selectable per-zone/group
• Independently adjustable hold and release times for all
priority types, plus music attenuation (ducking) level for
mic and paging priorities
Remote Control
• Optional CDR-1 dedicated remote control for DCM1
available separately
• Up to 100 CDR-1s may be connected to the four
CDR-1 Ports, using standard Cat 5 UTP cable
• CDR-1s can be daisy-chained and/or wired directly to
the CDR-1 Ports as cabling convenience dictates
• Multiple CDR-1s per-zone permitted
• CDR-1 provides local (in-zone) user control of source
selection and level control and key-protected EQ
adjustment
DCM1 & DCM1e Installation and User Guide V1.0 9
• RS-232 serial remote control interface for integration
with third-party control systems (Crestron, AMX, etc.)
• Software Utility Tool (free download) allows control and
conguration of most unit functions from PC via RS-232
port
• Internal Web server provides control and conguration,
plus additional functions, from a compatible Internet
browser via network connection (DCM1e only)
Misc
• Programmable external Music Mute input for re alarm
interface, etc.
• Paging access port can be recongured as 8-way GPIO
port
• One input (mic or line) can be installer-congured to
be protected from Music Mute (e.g., for evac message, emergency mic, etc.)
• Optional loudspeaker speaker EQ cards (per-zone)
DCM1 & DCM1e Installation and User Guide V1.010
Applications and Examples
The DCM1 will nd applications in many types of premises,
including shops, bars, hotels, schools, conference centres,
ofces, etc. The congurational exibility of the DCM1 means
that it can be set up by the system designer to provide precisely the facilities the user needs.
A few simple examples are given below to illustrate typical installations.
System 1
CD PLAYER
TV
RECEIVER
COMPUTER
MP3 PLAYER
INPUT 1 INPUT 2 INPUT 3 INPUT 4 INPUT 5 INPUT 6 INPUT 7 INPUT 8
MIC 1 MIC 2 MIC 3 MIC 4 PAGING MIC
PAGING ACCESS
CDPM/PM
1 2 3
CDR-1 PORTS
4
ZONE 1 ZONE 2 ZONE 3 ZONE 4 ZONE 5 ZONE 6 ZONE 7 ZONE 8
OTHER AREAS
POWER
AMPLIFIERS
CDR-1
CDR-1
CDR-1
AREA 1
AREA 2
AREA 3
PM PAGING
MICROPHONE
This depicts a simple system where four possible audio sources are made available to three or more zones (areas). Only three
are shown for clarity. Points to note:
• Each of the three areas shown is equipped with a
CDR-1 remote control. Note that Area 3’s remote is
wired directly back to the DCM1, while those in Areas 1 and 2 are daisy-chained together and wired back
be used to originate voice messages to any of the other areas. The paging level to Area 3 (if required) would be adjusted on installation to be at a level that does not
cause feedback.
to the DCM1 separately. This is possible because the DCM1/CDR-1 permit almost any wiring topology that is convenient for the building layout.
• Area 3 has a Cloud PM paging microphone, which would
DCM1 & DCM1e Installation and User Guide V1.0 11
System 2
CD
JUKEBOX
MUSIC
SERVER
OFF-AIR
RECEIVER
MP3 PLAYER
DOCK
INPUT 1 INPUT 2 INPUT 3 INPUT 4 INPUT 5 INPUT 6 INPUT 7 INPUT 8
MIC 1 MIC 2 MIC 3 MIC 4 PAGING MIC
PAGING ACCESS CDPM/PM
1 2 3
CDR-1PORTS
4
ZONE 1 ZONE 2 ZONE 3 ZONE 4 ZONE 5 ZONE 6 ZONE 7 ZONE 8
OTHER AREAS
POWER
AMPLIFIERS
AREAS 1 & 2
CDR-1
PARTITION
CDR-1
AREA 3
CDR-1
ME-1
ME-1
AREA 4
CDR-1
This shows a more complex system, which illustrates some additional DCM1 installation possibilities. Points to note:
• The large area has two CDR-1 remote controls in the
same zone; typically, these might be adjacent to doors at
opposite ends of the room.
• Two of the areas are separated by a folding partition
which may be removed to create one large space. By
assigning these two zones to a Group within the DCM1,
the two zones can be treated as one for audio purposes
• Each half of the partitioned area also has an ME-1 mic
input module. Because these have been wired back to
the DCM1 independently, each can be made available to their respective room halves as and when required. Alternatively, it may be that they are only required
when the partition is folded back; in this case they are
activated for the Group instead.
when the partition is removed and return to two
separate zones when it is reinstated.
DCM1 & DCM1e Installation and User Guide v1.012
System 3
COMPUTER
RADIO
TUNER
TV
AREA 1
CDR-1
LE-1
AREA 2
CDR-1
AREA 3
PM PAGING
CDR-1 CDR-1
MIC
MP3
PLAYER
EXTENSION 1 EXTENSION 2 EXTENSION 3 EXTENSION 4 INPUT 5 INPUT 6 INPUT 7 INPUT 8
MIC 1 MIC 2 MIC 3 MIC 4
PAGING MIC PAGING ACCESS CDPM/PM
1 2 3
CDR-1 PORTS
4
ZONE 1 ZONE 2 ZONE 3 ZONE 4 ZONE 5 ZONE 6 ZONE 7 ZONE 8
AREA 4
LE-1
AREA 5
AREA 6
CDR-1
CDR-1
SECURITY
3RD. PARTY
PAGING SYSTEM
MIC
CONTROL
System 3 shows a system interfaced to two paging stations, a
PM (which might be located at the building’s reception desk)
and a separate third-party system, which might typically be in
a security ofce. Other points to note:
• The CDR-1 remote control panels in each zone are
wired in two chains, to suit the building layout.
• Two of the line inputs are from LE-1 remote line input
modules in two different zones. Other music sources
have, in this case, been connected to Inputs 5 to 8.
DCM1 & DCM1e Installation and User Guide v1.0 13
Section 2: Installation
Description of front panel
24 3
1 15 5 14 13
1. POWER button: applies DC power to the DCM1 (note external PSU).
2. LCD display: 2 x 16-character backlit blue LCD display
used in all control and menu functions.
3. Rotary control: for adjusting unit parameters via the display. The control also has a “press” action, which is required for some front panel operations.
4. Next Function button: used to scroll through the various functions of each menu.
5. Numeric buttons 1 - 8: the operation of these buttons varies with the selected menu function. In many of them they represent Zones 1 to 8, each button selecting a
zone that the menu function will apply to. In others, they
may represent Inputs 1 to 8, for example. Each button has an associated blue LED to indicate the current status
of that zone or input for the function.
12 11
6 7 8 9
10
9. PRIORITIES: allows assignment of priority inputs (including paging inputs) and adjustment of the DCM1’s operation when priorities are active.
10. GROUPS: the Group menu allows assignment of
Zones to Groups, and dened Groups to be enabled.
11. Paging Access: eight LEDs (one per zone) which
illuminate when a zone is selected for paging from an
external paging microphone.
12. Extension Ports: four LEDs corresponding to the Extension Ports of Line Inputs 1 to 4. These LEDs illuminate when a LE-1 or BE-1 remote input module is connected, and the input to which it is connected is
enabled for the currently selected zone.
13. Mic Inputs: four LEDs corresponding to Mic Inputs
1 to 4. These LEDs illuminate when an ME-1 remote input module is connected, and the input to which it is
connected is enabled for the currently selected zone.
The menu system is divided into ve groups, each of which is
6
selected by one of the menu buttons
to 10. An associated
blue LED indicates selection.
6. MUSIC: gives access to per-zone source selection,
level control, EQ, maximum and minimum levels, and input gain per-input.
7. ROUTING: Allows per-zone mic enabling and input masking, plus other installation-specic functions.
8. SYSTEM: system menu includes enabling of
CDR-1 installer mode per-zone, mono/stereo selection for Zones 1 & 2, RS-232 port set-up, zone and input naming, security key set-up, etc.
DCM1 & DCM1e Installation and User Guide V1.014
14. Install button: activates Installer Mode. Allows access to the menu functions which are intended to be unavailable
to the user. A key needs to be entered on the numeric
buttons for Installer Mode to be active.
15. Music Mute LED: illuminates when an external Mute is
applied at the Music Mute connector (normally linked to
Fire Alarm or other emergency system).
Description of rear panel
5
8 9
76
10 10 10 10 10 10 10 10
1 1 4 11 12 13 15 1632
1. Line 1 to 4: inputs for music sources 1 to 4, on phono
sockets (unbalanced).
2. Extension Ports 1 to 4: These are alternative input connectors for Line Inputs 1 to 4. If Cloud remote line input modules (LE-1 or BE-1) are being used, they should be connected here via screened Cat 5 cable and shielded RJ45 connectors. These ports each provide a stereo pair of electronically-balanced inputs, together with DC power for the active circuitry in the remote module.
Do not connect a music source to the phono sockets
1
above) of a Line Input when its Extension Port is
( connected to a remote input module.
3. Line 5 to 7: inputs for music sources 5 to 7, on phonos only.
4. Line 8: Input 8 is available both as unbalanced on phonos and electronically-balanced on 2 x 3-pin 3.5 mm-pitch screw-terminal connectors. The balanced input allows connection of professional audio equipment such as
mixing consoles, DJ desks, etc.
5. Microphone Inputs 1 to 4: four shielded RJ45 sockets
for the connection of Cloud ME-1 microphone remote input modules. Connection should be via screened Cat 5 cable. These inputs are balanced, and the connectors additionally provide DC power for the active circuitry in the input modules.
6. Paging microphone input: balanced input for the connection of an external paging microphone. This input
7
is enabled via the access connector
. Adjacent to the 3-pin 3.5 mm-pitch screw-terminal connector are preset controls for mic gain and HF/LF EQ. Phantom power is available at this input (enabled by internal jumper).
7. Paging Access connector: 10-pin 5 mm-pitch screw­terminal connector providing several functions. If the DCM1 is being used with a third-party paging system, this connector provides contact-closure selection of the
zone(s) to be paged. If a Cloud PM Series is the only
type of paging system being used, the connector can be
used as an output port, the 8 pins becoming per-zone
open-collector outputs which can be used (typically)
14
for external level restoration. If the connector is not
required for paging access, it can be congured as a GPIO
port (with any combination of inputs and outputs), and used in conjunction with the RS-232 port to respond to serial commands (GPO) or report input status (GPI). 0 V and +12 V are also available on the connector. See page 33 for more information.
8. Zone Outputs 1 and 2: electronically-balanced outputs on 3-pin 3.5 mm-pitch screw-terminal connectors. Zone Outputs 1 & 2 are stereo; separate L and R connectors are provided. Stereo music sources routed to Zones 1 and 2 will remain in stereo. Either Zone Output can be
recongured as mono via the menu system.
9. Zone Outputs 3 to 8: as Zones 1 and 2, but mono only,
with a single connector. These zones will receive a mono
L+R sum of stereo inputs routed to them.
10. Paging level controls: each Zone output has an adjacent preset control which sets the volume of the paging mic (either from PM or third-party systems) in
that zone.
11. CDPM/PM ports: two RJ45 sockets, IN and THRU.
IN is for the connection of Cloud PM Series (or CDPM Series) paging microphones; THRU is used when a system
employs multiple DCM1s. DC power, zone selection data
and the paging microphone signal are all catered for on
the IN socket. The adjacent preset control adjusts the
PM microphone level.
12. CDR-1 Ports: four RJ45 ports for connection of CDR-1 (or CDR-1F) remote control plates. Plates may be daisy-chained, and the installer may use one or more of the four ports for individual or daisy-chained plates as the building layout dictates.
13. RS232 serial interface: a 9-pin female Dsub connector providing a bi-directional RS-232 interface. This has several functions: it permits control of the DCM1’s primary functions from an external system and can be used in conjunction with the Paging Access connector in GPIO mode.
On the DCM1e only, it can transmit serial
DCM1 & DCM1e Installation and User Guide V1.0 1515
commands to third-party equipment in response to Ethernet commands generated elsewhere (future
rmware release).
14.
ETHERNET INTERFACE: standard
RJ45 network connector allowing the DCM1e to be controlled and congured from an Internet browser. In a future rmware release, it will also accept control
commands using RS-232 syntax, and be used as an Ethernet-to-serial bridge to pass TCP/IP commands from third-party control systems to the RS-232 connector
13
*.
15. Music Mute input: 2-pin 5 mm-pitch screw terminal
connector for interfacing the DCM1 to a re alarm or other emergency system. The input is congurable for
use with either Normally Open (N/O) or Normally Closed (N/C) contacts; shorting (or removing a short)
will mute music in all zones (see “Congure Music Mute”
on page 45). One input source may be protected from this mute if wished, permitting the input to be used for automatic or manual evacuation messages (see “Select Emergency Source” on page 44).
16. POWER: Locking 4-pin power mini-DIN type for
connection of the DCM1’s external DC PSU.
* Ethernet-to-serial bridge functionality will be available in a future rmware release. Please check www.cloud.co.uk for additional product features.
DCM1 & DCM1e Installation and User Guide v1.016
Hardware considerations
The DCM1 is built in a 2U-high 19” rackmount enclosure. It is strongly recommended that the DCM1 is installed
in a 19” rack wherever possible. The DCM1 is approx.
160 mm deep, but 250 mm of rack depth should be available
to allow for rear connectors and cabling.
The DCM1 has low power consumption and there are no thermal considerations other than ensuring that the ventilation grilles (one on each side, one on the bottom panel) are not obstructed once installed. Other equipment may be installed above or below the DCM1 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 DCM1 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 DCM1’s location, bear in mind that access
to it may be required, as there are some conguration settings
that may need to be changed - occasionally or frequently ­depending on the daily requirements of the building. This is
more likely to be the case with a DCM1 than a DCM1e, as
the latter allows many setting to be adjusted remotely from an external device.
Power Supply
The DCM1 requires ±12 V DC, which is supplied by the external DC Power Supply Unit (PSU) included with the unit. This has a 1 m captive cable with a moulded 4-pin plug for connection to the DCM1. The PSU is of the “Universal” type, and will operate on any AC supply voltage from 100 to 240 V. Wherever possible, mount the PSU in a safe location within
the equipment rack, securing both the DC cable and the IEC
mains lead with cable ties to avoid inadvertent disconnection.
System Connections
Music Sources
Connect the system’s various music sources to LINE 1 to 8. When allocating sources to inputs, bear in mind that if Cloud LE-1 or BE-1 remote modules also form part of the system, these can be connected to LINE 1 to 4 only.
Standard connection:
All eight line inputs offer unbalanced connection for stereo
sources on a pair of standard phono sockets (RCA jacks).
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. Such equipment will generally have stereo unbalanced outputs, and as long as the source equipment is adjacent to the DCM1, normal phono-phono leads can be used.
Mono sources:
If connecting a source with only a single mono output to
the DCM1, connect it to both the L and R sockets, using a
Y-splitter lead or similar.
Balanced sources:
LINE 8 is additionally provided with electronically-balanced
inputs, which may be used to connect source equipment with balanced outputs. Balanced connection is always preferable to unbalanced for situations involving long cable runs, and should be used if one of the music sources is remote from the DCM1 (a DJ mixing system is a common example).
When connecting balanced sources to LINE 8’s balanced input connector, wire as shown below. Note that the cables’ screens are not connected at the source end.
3
12
LEFT
3
12
RIGHT
Balanced outputs (XLRs):
pin1ground pin2hot pin3cold
-
+
-
+
DCM1Balanced inputs
pin1ground pin2cold pin3hot
RIGHT
LEFT
123123
SCN
­+
SCN
-
+
Do not connect music sources to both the balanced and
unbalanced connectors of LINE 8.
Additional balanced sources:
If it is necessary to connect more than one balanced source to the DCM1, one of the unbalanced inputs 1 to 7 may be used, but the advantages of balanced connection will be lost unless a balancing transformer is 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 DCM1 as practical, and housed in a screened enclosure if they are not individually screened. The preferred connection method is shown below.
Balanced outputs (XLRs):
pin 1 ground pin 2 hot pin 3 cold
LEFT
3
12
RIGHT
3
12
-
+
SCN
-
+
SCN
Audio balancing transformers
-
+
SCN
-
+
SCN
SCN
SCN
LEFT
Unbalanced
inputs
RIGHT
Unbalanced
inputs
DCM1 & DCM1e Installation and User Guide v1.0 17
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 manuals with each item
for guidance on how the outputs should be connected to an unbalanced input.
However, the wiring methods shown below will work in a
large number of cases. If hum or other distortion is found to
result, try disconnecting the ‘cold’ leg of the balanced output
(pin 3 on XLRs).
When using single-core cable,
join ‘cold’ to screen at the
3
1
LEFT
3
1
RIGHT
Balanced outputs (XLRs):
pin 1 ground pin 2 hot pin 3 cold
+
2
SCN
+
2
SCN
source
Unbalanced
LEFT RIGHT
SCN
+
inputs
SCN
+
Zone Outputs
Connect the inputs of the power ampliers feeding the
loudspeakers for each zone to ZONE 1 to 8. Note that zone
outputs 1 and 2 are stereo; if only one set of speakers are being used in these zones, they may be connected to either
connector.
Standard connection:
All eight outputs provide balanced connection for wiring to
professional/industrial power ampliers with balanced inputs
(typically on XLRs). In this case, wire as the diagram below. Note that the cables’ screens are not connected at the source end.
DCM1 Balanced output:
pin1ground pin2cold pin3hot
123
-
+
Unbalanced inputs:
If audio ampliers with only unbalanced inputs are being used (e.g., hi- ampliers), the following wiring should be adopted:
SCN
-
+
Balanced input (e.g. XLR):
pin1ground pin2hot pin3cold
12
3
3
1
LEFT
3
1
RIGHT
Balanced outputs (XLRs):
pin1ground pin2hot pin3cold
-
+
2
SCN
-
+
2
SCN
When using twin-and-screen cable, join ‘cold’to screen at
LEFT RIGHT
SCN
-
+
DCM1end
Unbalanced
inputs
SCN
-
+
Always avoid using pre-made leads of an unnecessary length.
An alternative method of providing additional balanced sources is to use BE-1 remote input modules connected to EXTENSION PORTS 1 to 4; these could be installed adjacent to the DCM1 in such a situation.
DCM 1Balanced output:
pin1ground pin2cold pin3hot
123
+
SCN
DCM1Balanced output:
pin1ground pin2cold pin3hot
123
+
-
SCN
When using single-core cable, join'cold'to screen at the DCM1
When using twin-and-screen cable, join 'cold'to screen at the amplifier end
SCN
+
Unbalanced input
(e.g. phono)
Unbalanced input
(e.g. phono)
SCN
­+
Always avoid using pre-made leads of an unnecessary length.
DCM1 & DCM1e Installation and User Guide V1.018
CDR-1 Remote Control Plates
Multiple CDR-1 or CDR-1F remote control plates may be connected to the DCM1 either by wiring them directly and individually, or by “daisy-chaining” them together. In most
installations, a combination of these methods is likely to
be the most convenient solution from the point of view of practical cabling. The diagrams below illustrate the types of wiring schemes that may be employed; almost any variation on these is permissible.
PortAtermination ON
DCM1
IN
OUT
IN
OUT
IN
Termination ON
CDR-1 PORTS
PORT PORT
A A
PORT
PORT
B
B
All other terminations are OFF
Termination ON
Network Diagram 1
PortBtermination ON
IN
OUT
IN
OUT
IN
Termination ON
IN
IN
Termination ON Termination ON
DCM1
IN
PORT PORT
A A
CDR-1 PORTS
PORT
PORT
B
B
Termination ON
IN
All other terminations are OFF
Network Diagram 2
DCM1 & DCM1e Installation and User Guide 19
Termination ON
IN
OUT
DCM1
IN
OUT
IN
OUT
IN
Network Diagram 3
Note that in the above diagrams there is deliberately no
indication as to which zones any of the CDR-1s are in; this is
because the system imposes no restriction on their physical location. Interconnection may be made purely on the basis of wiring convenience.
Connections
CDR-1s are connected to the DCM1’s CDR-1 PORTS using standard unscreened Cat 5 cable and RJ45 connectors. It may be possible to use pre-made Cat 5 “patch cables” to connect any CDR-1s installed close to the DCM1; otherwise Cat 5 cable and crimp RJ45 plugs should be used. NOTE: All Cat 5 cabling should be wired “pin-to-pin”; “crossed” or
“null” cables will not work.
Wire the RJ45 connectors according to the pinout diagram on page 69.
Note that the single Cat 5 interconnection provides DC power as well as data. A full pin allocation of the CDR-1 ports can be found in the Appendix at the end of this manual.
Any of the four CDR-1 PORTS may be used. Two of these are labelled PORT A and the other two PORT B, but the four are electrically identical. However, use of Port A or Port B has relevance to how terminations are set (“Network Terminations” on page 21).
CDR-1 PORTS
PORT PORT
A A
PORT
PORT
B
B
Port A termination ON
All other terminations are OFF
CO-AXIAL SOCKET
FOR EXTERNAL PSU
J2 J1
ON
MID
OFF
END
TO NEXT
CDR-1
FROM DCM-1
POWER
OUT
POWER
RJ45 SOCKETS FOR INTERCONNECTION
EXT POWER
IN
DATA
Data and external power connections on the CDR-1
The CDR-1 and CDR-1F are equipped with two RJ45 connectors, labelled POWER IN and POWER OUT.
The “rst” CDR-1 in a daisy-chain wiring system should be
connected to the DCM1 using its POWER IN connector. The POWER OUT connector on this CDR-1 should be connected to the POWER IN of the next CDR-1 in the chain, and so on until the last CDR-1 in the chain. Note that the locations of the RJ45 connectors differ on the two CDR-1 versions:
DCM1 & DCM1e Installation and User Guide V1.020
TO NEXT CDR
FROM DCM-1
RJ45 SOCKETS FOR
DATA
INTERCONNECTION
2-PIN EXTERNAL POWER SOCKET
Data and external power connections on the CDR-1F
Network Terminations
Cable length and DC power considerations
The Cat 5 wiring connecting the DCM1 and CDR-1s is
essentially a data network, and as such, must be correctly
terminated. Both the DCM1 and CDR-1 are provided with
means of setting their network terminations ON or OFF.
The rule governing terminations is:
• Devices (DCM1 or CDR-1) at the ends of a cable run
must have their terminations set ON.
• All intermediate devices must have their terminations
set OFF.
• If both connectors on the same DCM1 CDR-1 PORT
(either PORT A or PORT B) are being used, the DCM1 may be considered as an intermediate device, and its termination should be set to OFF.
The correct termination setting is indicated for each device in the three network examples illustrated on page 19 and page 20. Note that in Example 1, the DCM1’s Ports A and B are both in use, but only one connector is used on each. The ports are thus at the ends of the chains, and their terminations must therefore be set ON. In Example 2, all four ports are in use, so the DCM1 is “mid-chain” with respect to both ports, so both terminations should be set OFF.
There are two network terminations in the DCM1, one for
each port. These are set by internal jumpers J6 (Port A) and J13 (Port B). See page 65 for details of jumper locations.
The port termination is ON when the jumper is in place. Remove the jumper carefully, with a pair of long-nosed pliers, to set the port termination OFF. (We suggest the jumper is left on one of the two pins in case it is required in the future.)
On the CDR-1 and CDR-1F, the network termination is set by jumper J2. This has two possible positions, marked MID
(termination OFF) and END (termination ON).
As far as correct data communications are concerned, the maximum recommended cable length of the
CDR-1 network is 1 km. This gure applies either to
the total cable run between the “farthest” CDR-1 and the DCM1 if a single daisy-chain of CDR-1s has been employed (see Network Diagram 1, page 19), or to the total run between the most remote CDR-1s if the DCM1 is in the “middle” of the chain (i.e., multiple daisy-chains of
CDR-1s, see Network Diagram 2, page 19). Cable runs longer than this may work satisfactorily, but this cannot be
guaranteed. The probability of correct operation is a function of cable length, the number of CDR-1s daisy-chained, and how many of them are at a distance from the DCM1 close to the maximum cable length.
IMPORTANT: The 1 km limit referred to above ONLY
applies to the digital data carried by the Cat 5 cable; a DCM1 will NOT successfully supply DC power over this cable length. Systems with long cable runs and/ or several CDR-1s on the same run will need external power supplies, whose location and system connection will depend on the topology and cable lengths involved.
The DCM1 has sufcient capacity to power eight CDR-1s and/or CDR-1Fs (i.e., nominally one plate per zone) via the
Cat 5 connections. However, in addition to the limitation above, one or more external PSUs will be required if any of the following apply:
• If the system requires more than eight CDR-1s in total;
• If the “rst” CDR-1 on a daisy-chain is more than 250 m
cable run from the DCM1;
• If several CDR-1s are in a “cluster” (i.e., close together
in cable run terms) on a single daisy-chain.
J2 J1
ON
MID
OFF
END
Diagrams showing CDR-1 jumper settings for :
a) termination OFF (MID), b) termination ON (END).
Note Jumper J1 not shown.
MIDEND OFF
Diagrams showing CDR-1F jumper settings for :
a) termination OFF (MID), b) termination ON (END).
ON
Note Jumper J1 not shown.
J2 J1
ON
MID
OFF
END
MIDEND OFF
ON
The DCM1’s power supply capability can be maximised by using as many CDR-1 PORT sockets as possible when wiring CDR-1s.
As with data communication, the probability of satisfactory operation is a function of DCM1-to-CDR-1 cable run, the number of CDR-1s on each daisy-chain and the number of
CDR-1 PORT sockets used. If any CDR-1s in a system are found to operate unreliably, it is likely that some will need
to be powered independently; as outlined above, this will probably be the case with longer cable runs and/or several CDR-1s on the same daisy-chain. The Cloud CPM-PSU is a suitable external power supply, and should be connected to the EXT POWER socket in the rear of the CDR-1. Note that any further CDR-1s connected to the POWER OUT connector will be powered by the external PSU.
If a third-party external PSU is to be used, it should be rated at either 12 – 24 V DC or 9 – 17 V AC. Each CDR-1/
CDR-1F takes 50 mA at 12 V, so the current capability of any PSU should also be checked. See page 69 for details of PSU
and current ratings.
DCM1 & DCM1e Installation and User Guide V1.0 21
Mic and Line Input Modules
OUT
OUT
Remote input modules from the Cloud ME-1, LE-1 and BE-1 ranges may be connected to the DCM1 in a similar manner to that described for the CDR-1 remote controls, except that screened Cat 5 cable should be used.
Remote modules may be “daisy-chained” for wiring convenience, providing that the following guidelines are observed:
• ME-1 mic input modules cannot co-exist on the same
“daisy-chain” as LE-1 line input modules or BE-1 balanced input modules.
• LE-1 and BE-1 modules can co-exist on the same “daisy-
chain”.
• If more than one module is used for remote inputs
simultaneously, a mixed sum of all sources will be presented to the DCM1 input.
MIC1
10
OFF
LEVEL
+
LF HF
+ +
LF HF
MICROPHONEINPUT
MIC2
10
OFF
LEVEL
+
Note that the two mic inputs on the ME-1 and ME-1A remote modules are summed together and passed to the DCM1 as a mono signal. The ME-1M has a single mic input.
The two inputs on all versions of the LE-1 and BE-1 are intended for stereo use, and these modules’ connections to the DCM1 maintain the stereo image of the source.
The diagram below illustrates some of the connection possibilities. Three ME-1, two LE-1 and one BE-1 modules are shown. MICROPHONE INPUTS 1 & 3 and EXTENSION PORTS 3 & 4 are chosen for reasons of drawing clarity; any could be used in practice.
R
LINE
HEADPHONE
LEVEL
L
TRIM
LEVEL
PEAK
-12+12 dB
INPUTS
MUSICINPUT
ME-1
ME-1
MIC1
LEVEL
ME-1
MIC1
LEVEL
LE-1
MICROPHONE INPUTS
1
3 4
2
EXTENSIONPORTS
1
3
2
4
DCM1
LE-1
MIC2
10
OFF
+
LF HF
+ +
LF HF
MICROPHONEINPUT
OFF
LEVEL
+
OUT
10
LINK IN
OUT
LINK IN
R
LINE
LEVEL
L
TRIM
HEADPHONE
LEVEL
PEAK
-12+12 dB
INPUTS
MUSICINPUT
BE-1
LEFT
RIGH T
INPUT
MIC2
10
OFF
+
LF HF
+ +
LF HF
MICROPHONEINPUT
OFF
LEVEL
+
OUT
10
OUT
INPUT
BALANCED MUSICINPUT
DCM1 & DCM1e Installation and User Guide V1.022
Connections and wiring
Cat 5 cables used to interconnect remote input modules carry low-level audio. To minimise noise and interference from outside sources, only screened Cat 5 should be used. Only use shielded RJ45 plugs when wiring this part of the system, bonding the foil screen of the cable to the metal screening can of the plug.
ME-1 mic input modules should be connected to the RJ45
connectors labelled MICROPHONE INPUTS on the DCM1.
LE-1 line input modules and BE-1 balanced line input modules should be connected to the RJ45 connectors labelled
EXTENSION PORTS on the DCM1. Do not connect any
music sources to the phono sockets corresponding to the
Extension Ports being used.
The remote modules all have two RJ45 sockets, labelled
OUTPUT and LINK. The “rst” module in a daisy-chain
wiring system should be connected to the DCM1 using its
OUTPUT socket. The LINK socket on this module should be
connected to the OUTPUT of the next module in the chain,
and so on until the last module in the chain.
BE-1
Connecting Paging systems
Cloud PM Paging Microphones
The DCM1 fully supports the Cloud Paging Interface Buss implemented across the Cloud PM range. (The Cloud Paging Interface Buss is also used by the earlier Cloud CDPM paging microphone range.)
Connections and wiring
The DCM1 is equipped with two RJ45 sockets for connection of Cloud PM Series paging microphones. The sockets, marked CDPM/PM, are labelled IN and THRU. PM paging microphones are similarly equipped with two RJ45 sockets,
labelled IN and OUT.
If the system being installed includes one microphone, its
OUT socket should be connected to the IN socket on the
DCM1.
If the system requires more than one microphone, the additional microphones should be “daisy-chained” together. For example, two microphones would be wired by connecting the OUT socket of one to the IN socket on the DCM1 as above, and then connecting the OUT socket of the next microphone to the IN socket of the rst.
LINK
OUTPUT
ME-1
LINK
OUTPUT
LE-1
LINK
Refer to Installation Guide for the Module
OUTPUT
The diagram below illustrates the various methods of connection. Note that the third example illustrates the method of interfacing a PM16 to two DCM1s. In this case, the CDPM/PM THRU connector on the rst DCM1 is connected to the IN on the second, and the PM Zone Offset of the second would be set to +8. This would allow it to correctly interpret commands from paging buttons 9-16 on the PM16. See page 34 for full details of how to set PM
Zone Offset.
NOTE: The CDPM/PM THRU connector is only intended
for connection of additional DCM1 units, not for additional PM paging microphones.
Note that the single Cat 5 interconnection provides DC power as well as audio. A full pin allocation of the Microphone Inputs and Extension Ports can be found in the Appendix at the end of this Guide.
The DC power consumption of the active circuitry is quite low, and no PSU capacity problems should be experienced in the vast majority of installations. Refer to page 69 for PSU and current ratings.
DCM1 & DCM1e Installation and User Guide v1.0 23
OUT
Termination ON
Example 1
Mixer
Termination ON
Refer to the PM Setup and Installation Guide (supplied with each PM paging mic) for information on setting the buss termination in the microphones.
The DCM1’s PM buss termination is set by internal jumper J2. The termination is set ON when the jumper is in place. Remove it to set the termination OFF. (We suggest the jumper is left on one of the two pins in case it is required in the future.) See also page 65.
Mixer
Termination
ON
Termination
ON
INOUT
DCM1 #2
DCM1 #1
OUT
OUT
Example 2
Example 3
Termination ON
Termination OFF
Termination ON
CDPM
IN
THRU
CDPM
IN
THRU
Termination OFF
PM paging microphones can be connected to the DCM1 and each other using standard Cat 5 cable. If crimping RJ45 plugs to install cabling, use the pinout in page 69. A full pinout of the PM Paging Interface Buss can be found in the appendix at the end of this manual.
PM DC power
The DCM1 can supply DC to power one PM paging microphone. Powering of a microphone in this way is enabled with the internal jumper J14, which is set ON as the factory
default. If the microphone connected to the DCM1’s CDPM/ PM IN port is self-powered, or powered from elsewhere in
a PM network, this jumper should be removed. (We suggest
the jumper is left on one of the two pins in case it is required in the future.) See page 69. for details of PSU and current ratings.
Adjusting paging levels
Separate controls are available at the rear panel for setting PM microphone sensitivity and the paging level sent to each Zone. Full details on adjusting these can be found at page 46.
Zone paging outputs
If a PM paging microphone system is the only one being used with a DCM1, the DCM1’s PAGING ACCESS connector
may be used to provide per-zone paging control outputs.
These can be used, for example, to activate level restoration
in 100 V line systems where local speaker volume controls are installed. When a zone is paged from the PM system, the control output for that zone activates (pulls down to 0 V).
PM Terminations
The rules that apply to terminating a network of CDR-1
remote control panels also applies to multiple PM paging microphones. The DCM1 and a set of microphones should be considered as a “daisy-chain”, and buss terminations should be set ON in the two devices at the “ends” of the chain, and OFF in all others. The interconnection diagram above indicates how these rules are applied in the various possible wiring schemes.
• In the simplest implementation of just one paging
microphone, the terminations should be set ON at both the DCM1 and the microphone.
• If two or more microphones are daisy-chained to the
DCM1’s IN socket, terminations must be ON at the
DCM1 and the “end” microphone only.
• If two DCM1s are daisy-chained using the IN and
THRU connectors, terminations at the “ends” of the
chain should be ON. In Example 3 above, this will be at the paging microphone and DCM1 #2. The termination in DCM1 #1 should be set to OFF (as it is in the “middle” of the chain).
The PAGING ACCESS connector’s default conguration
is as a zone input connector for use with third-party paging
systems. Re-assignment as an output connector is made via the menu system. See “Congure Access Connector” on page 33 for details.
The connector is a 10-way screw-terminal type. The pinout is given in the table below:
PIN FUNCTION
1 0 V
2 Zone 1 active
3 Zone 2 active
4 Zone 3 active
5 Zone 4 active
6 Zone 5 active
7 Zone 6 active
8 Zone 7 active
9 Zone 8 active
10 +12 V
DCM1 & DCM1e Installation and User Guide v1.024
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