CLOUD DCM1 & DCM1e
DIGITALLY CONTROLLED ZONE MIXERS
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482.6 mm
19”
88 mm (2U)
3½”
DCM1 - Front View
General Description
The Cloud DCM1 and DCM1e are analogue multi-zone audio
mixers. 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 conguration than would be
possible with such units. The mixers provide a simple, reliable and
elegant method of providing audio to multiple zones in retail outlets,
bars, hotels, schools, conference centres, ofces, factories and other
types of premises. Once congured, the mixers allow zones to be
combined or separated as space utilisation of the building demands.
The mixers allow connection of eight line level sources, and provide
eight zone outputs, two of which are stereo. Any source can be
routed to any zone, and the music level in each zone can be adjusted
independently. A wide range of conguration options is available to
the installer to optimise the system to the premises and the client’s
requirements, such as restricting source selection in some zones or
dening minimum and maximum volume levels.
DCM1 & DCM1e Accessories (examples)
DCM1e - Rear View
A range of optional remote plates is available to permit music
control in any or all zones and external inputs from mic and line
sources. (See separate datasheets for Cloud accessories CDR-1,
LE-1, BE-1, ME-1.) While the DCM1 and DCM1e are also directly
compatible with the Cloud PM range of paging microphones, most
third-party paging systems are easily integrated. In common with all
Cloud installed audio products, a Music Mute input is provided to aid
compliance with local Fire Regulations.
The DCM1 has been designed to be completely self-contained, and
can be fully congured and controlled without a computer of any
kind. However, a software Conguration Tool is available (a free
download) to enable conguration from a computer if this method
is preferred.
The DCM1e greatly extends the DCM1’s functionality by adding an
Ethernet interface and an internal web server, allowing control from
a smartphone, laptop, tablet device or computer via a web browser.
CDR-1F CDR-1 LE-1 (UK Version) ME-1A (US Version) BE-1M (Media Version)
Remote Control Plate Remote Control Plate Line Input Module Microphone Input
Module
All Cloud products are exclusively designed in the UK.
Every Cloud product is exhaustively tested for electronic performance and sonic perfection in Shefeld, England.
Balanced Line Input
Module
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DCM1e Control Using Web Browser (sample menus when used with a smartphone)
Conguration Menu
Group Assignment Menu Music Controls per Zone
Further Examples Showing Complete Menus
Network Setup Menu
Input Selection Per Zone
Paging Assignment Security Settings
Key Features
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• 8 stereo line inputs (1 balanced), with input level trims (via menu
system)
• 8 balanced line outputs (2 stereo + 6 mono)
• Any source may be routed to any zone at any level
• 4 Extension Ports for optional remote line input modules
(balanced or unbalanced), using Cat 5 UTP cable
• 4 Mic Inputs for optional remote mic input modules, using
Cat 5 UTP cable
• External inputs (mic or line) may be routed to any zone
• RJ45 interface for Cloud PM Series digital paging microphones
• Separate analogue paging mic input with standard short-to-
ground zone selection
• Paging to all zones with fully programmable override logic
• Supports up to 100 CDR-1 Remote Controls (optional), in any
wiring configuration, using Cat 5 UTP cable
• Remote control of source, level, EQ and group enable via
CDR-1 plates
• 2 x 16 character LCD dot-matrix display (both DCM1/DCM1e
and CDR-1)
• Four definable zone groups; groups have same selection options
as zones
• Any line input may have priority in any zone; configurable perzone
• Configurable source selection restriction, per-zone
• Key-protected “Installer” mode (both DCM1/DCM1e and
CDR-1) prevents user access to configuration menus
• Inputs, zones and groups can be named
• RS232 interface for control by third-party control systems
• Paging access port may be reconfigured as eight GPIO ports,
under RS-232 or Ethernet (DCM1e only) control
• Front-panel LEDs confirm remote access
• Optional per-zone EQ cards to suit a range of popular installation
loudspeakers
• Software Configuration Tool available (free download) to permit
easy configuration from a computer
• Self-contained - can be fully configured and controlled without a
computer if preferred
• Multiple mixers may be cascaded to create 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
DCM1e only – Additional features
• Ethernet port with internal web server
• Control over main user functions from web-capable devices
• Extended range of password-protected functions
• Ethernet to RS232 bridge may be used to send commands to
third-party equipment
System Example - Hotel/Large Restaurant (DCM1)
The system shown could typically be a hotel or large
restaurant, and illustrate how some of the DCM1’s
many features may be used in practice:
• 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
when the partition is removed and return to two
separate zones when it is reinstated.
• Each half of the partitioned area also has an ME-1
mic input plate. Because these have been wired back to
the DCM 1 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.
• If the model of mixer is a DCM1e, system control is
available to the user via a web browser on an Internet-
capable device. Browser control can be congured
at installation so that only the operational features
required by the venue staff are accessible to them; all
other functions are password-protected.
COMPUTER
OR TABLET
CD
JUKEBOX
MUSIC
SERVER
OFF-AIR
RECEIVER
MP3
PLAYER
DOCK
Wireless Access Point
or Router for DCM1e
only.
INPUT1
INPUT2
INPUT3
INPUT4
INPUT5
INPUT6
INPUT7
INPUT8
MIC1
MIC2
MIC3
MIC4
PAGINGMIC
PAGINGACCESS
CDPM
1
2
3
CDR-1PORTS
4
ETHERNET
DCM1 or
DCM1e
ZONE1
ZONE2
ZONE3
ZONE4
ZONE5
ZONE6
ZONE7
ZONE8
OTHER
AREAS
POWER
AMPLIFIERS
AREAS 1 & 2
CDR-1
PARTITION
CDR-1
AREA 3
CDR-1
AREA 4
CDR-1
ME-1
ME-1
Block Diagram
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Technical Specications
Line Inputs
Frequency Response 20 Hz - 20k Hz ±1 dB
Distortion <0.05 %, 20 Hz - 20k Hz
Sensitivity 195 mV (-12 dBu) to 3.1 V (+12 dBu)
Input Gain Control 24 dB range
Input Impedance 47k Ω
Headroom >+10 dB
Noise -90 dB A weighted (0 dB gain)
Equalisation HF: ±14 dB/10k Hz
MID: ±14 dB/1200 Hz
LF: ±14 dB/50 Hz
Paging Microphone Inputs
Frequency Response 100 Hz / -3 dB(lter) to 20 kHz
±0.5dB
Distortion <0.05% 20 Hz-20k Hz
Gain Range 10 dB - 50 dB
Input Impedance >2k Ω (balanced)
Phantom Power +12 V (PCB jumper for on/off)
Headroom >20 dB
Noise -120 dB EIN 22 Hz - 22k Hz (150 Ω)
Equalisation HF: ±10 dB/5k Hz
LF: ±10 dB/100 Hz
Outputs
Balanced Zone Outputs 775 mV (0 dBu)
Minimum load impedance 600 Ω
Maximum output level +10 dBu (2.6 V)
External Power Supply
External Supply Input 100 V-240 V AC; 47-63 Hz; 1.35 A
Power supply +12 V, 3 A; -12 V 1 A
Physical
Dimensions (w x h x d) 482.6 mm x 88 mm (2U) x 170 mm
19” x 31/2” 63/5”
Dimensions (packed) 570 mm x 270 mm x 220 mm
22” x 11” x 9”
Weight 3.12 kg (7 lbs) net
4 kg (8.8 lbs) packed
Graphs
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CloudElectronics Ltd DCM-1LineInputFreq uencyRespons e
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Stereo Output
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DCM1/DCM1e Line Input Frequency Response Stereo Output
CloudElectronics Ltd DCM-1AdjacentLineInp ut Crosstalk
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CloudElectronics Ltd DCM-1LineInputEQ Curves
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DCM1/DCM1e Line Input EQ Curves
CloudElectronics Ltd DCM-1LineInputFreq uencyRespons e
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DCM1/DCM1e Line Input Frequency Response Stereo Output
CloudElectronics Ltd DCM-1AdjacentZoneOutputCrosstalk
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Hz Frequency
DCM1/DCM1e Adjacent Line Input Crosstalk
Architect’s and Engineer’s Specication
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The Zone Mixer’s audio signal paths shall be fully analogue in design;
there shall be a simple menu/display system on the front panel for
accessing all system controls and conguration options. It shall be
possible to access all control functions without the use of any external
computers or software. A PC-compatible software application shall
be available; this shall interface with the Zone Mixer via an RS232
connection and shall provide an alternative method of accessing all
control and conguration options.
Two versions of the Zone Mixer shall be available; these shall be identical
in terms of their audio functions. One shall include an standard RJ45
Ethernet interface and internal web server; on this version it shall be
possible to access main control functions from a standard web browser
on devices connected to the same network as the Zone Mixer.
The Zone Mixer shall have 8 stereo line channels, 4 microphone inputs
and a paging mic input. Line inputs shall be on RCA jacks; one shall also
be available as a balanced input on Euroblock connectors; four shall
also have RJ45 sockets providing balanced inputs for the connection
of optional balanced or unbalanced stereo external connection
modules. The microphone inputs shall be balanced on RJ45 sockets for
connection of optional external modules. The Line Inputs shall each
have level trim adjustment available via the menu system. The remote
modules shall be available in a range of sizes and nishes.
The Zone outputs shall be balanced on Euroblock connectors. At
least two shall be stereo, the remainder mono. It shall be possible to
adjust the following parameters for each Zone output: Level, Maximum
and Minimum Levels; EQ (3-bands). It shall be possible to route any
microphone or line input to any Zone output without restriction,
and to adjust each Zone output level independently. It also shall be
possible to make one or more line Inputs unavailable to any Zone
without restriction. It shall also be possible to dene up to 4 Groups
of Zones; enabling/disabling Groups shall be possible without entering
a password. It shall be possible to assign alphanumeric names to all
Inputs, Zones and Groups; these will still apply after any hardware reset
operation.
An optional remote control plate with the same display as the host
unit shall be available for the Zone Mixer. The plate shall be provided
with IN and OUT sockets to permit series interconnection of up
to 100 plates. It shall be possible to congure a plate to provide the
following control functions for its assigned Zone: for immediate access
- Line Input Select and Music Level; with password entry – Zone EQ
(3 bands). The plates shall be available in a range of styles and nishes.
The Zone Mixer shall interface directly with Cloud PM Series paging
microphones and/or third-party paging microphones employing shortto-ground zone access. The input for a third-party Paging Mic shall be
dedicated, and on a Euroblock connector; routing this to any/all Zones
will be by contact closure at a separate Euroblock connector. Both
Paging Mic inputs shall have rear panel gain controls; HF and LF EQ
controls shall also be provided, effective on both inputs.
The Zone Mixer shall have a rear panel paging level adjustment for
each Zone. The music signal in a Zone shall reduce in volume when
that Zone is being paged, and the Hold Time, Release Time and Music
Attenuation shall all be adjustable. It shall also be possible to trigger
music level reduction by Zone Selection or Paging Mic signal presence.
It shall be possible to assign per-Zone Priority status to any line or
microphone input, such that a Priority signal above a xed threshold
overrides the current Input selection in each Zone for as long as the
Priority signal remains above the threshold. In connection with this,
the following parameters shall be adjustable: Hold Time, Release Time;
Music Attenuation (Mic Priority only).
There shall be a Music Mute Input; this will cause muting of the music
in all Zones. Muting control shall be congurable on either external
contact closure (N/O) or short-circuit removal (N/C). It shall also be
possible to assign any one line or microphone Input to remain unmuted
during Music Mute operation for Emergency system interface.
The front panel shall provide the following features: power switch,
backlit LCD display, rotary encoder with “press” function and softwareassignable push-buttons for control functions. One of the buttons
shall control the Zone Mixer’s menu system. Five further buttons
shall select submenus, and another button shall activate a set of menu
options which require the entry of a password. The password shall be
redenable by the User. The front panel shall also include various LEDs
indicating: external paging access, remote line input selection, remote
mic input selection and emergency Music Mute activity.
It shall be possible to save all current settings and reload these settings
when power is applied. Alternative power-up options shall be to load
the original factory settings or those in force at power-down, even if
they were not specically saved.
The Zone Mixer shall include an RS232 serial port permitting remote
control of all unit functions and settings. The Ethernet-enabled version
of the Zone Mixer shall also have the ability to relay serial data from
the Ethernet port to the serial port; it shall also be possible to redene
the function of the Paging Access connector to provide open-collector
pull-down outputs becoming active under commands received at the
RS232 or Ethernet ports.
It shall be possible to retro-t optional loudspeaker equaliser cards
to any or all Zone outputs. Cards shall be available to optimise the
outputs for use with various popular installation loudspeakers.
The Zoner shall be built in a steel chassis for mounting in a standard
19” rack enclosure.
The Zone Mixer shall be the Cloud DCM1; the Ethernet-enabled
version shall be the Cloud DCM1e. The remote control plates shall
be the Cloud CDR-1 Series; the remote input plates the Cloud LE-1
Series (unbalanced line), Cloud BE-1 Series (balanced line) and Cloud
ME-1 Series (microphone).
Cloud Electronics Limited
140 Staniforth Road, Shefeld, S9 3HF. England.
Telephone: +44 (0)114 244 7051 Fax: +44 (0)114 242 5462
Web: www.cloud.co.uk E-mail: info@cloud.co.uk
Cloud Electronics USA
2065 Sidewinder Drive, Suite 200, Park City,
Utah 84060. United States of America.
Toll Free: 0855 810 0161
Web: www.cloudusa.pro E-mail: sales@cloudusa.pro
E&OEIssue_1.0
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