ut 1 - SVD FRANCE
DCM-1 : Digitally Controlled Mixer
General Description
Cloud's latest offering, the DCM-1, provides any space-conscious sound
installation with a high level of flexibility, but without the need of a PC.
It is ideal for contractors/installers who require flexible routing of line and
mic signals.The analogue zoner, with its simple-to-use digital control
interface, can be controlled remotely via multiple LCD digital controllers.
Optional active input modules extend the flexibility further.The DCM-1 is
Cloud's first ever microprocessor controlled multi zoner.With traditional
"installer friendly" analogue I/O and signal path, but giving the contractor
the flexibility and adaptability of digital control.The traditional simplicity
of Cloud products, with far greater functionality.
• 8 stereo line inputs (1 balanced)
• Key-protected “Installer” mode (both DCM‑1 and CDR‑1) prevents
user access to configuration menus
• 8 balanced line outputs (2 stereo + 6 mono)
• Inputs, zones and groups can be named RS232 interface for control
by third-party control systems
• 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 contact closure zone selection
• Separate RJ45 interface for CDPM Series digital paging microphones
• Front-panel LEDs confirm remote access
• Accepts Bose® EQ cards
• No PC required
• Supports multiple CDR‑1 Remote Controls (optional) in any
wiring configuration
• Multiple DCM‑1’s may be cascaded for larger systems
• External Music Mute input for interfacing with emergency systems
• CDR‑1 provides local control of source, level, EQ and group enable
• Any input (mic or line) may be assigned as Emergency Input,
overriding Music Mute
• 2 x 16 character LCD dot-matrix display (both DCM‑1 and CDR‑1)
• 4 definable zone groups
• 2U 19” rack-mounting unit
• Any line input may have priority in any zone; operation also
configurable per-zone
Cloud Electronics Limited
System Example - Hotel/Large Restaurant (DCM1)
•
•
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 DCM 1, 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.
POWER
AMPLIFIERS
AREAS 1 & 2
CDR-1
ME-1
CD
JUKEBOX
MUSIC
SERVER
OFF-AIR
RECEIVER
MP3
PLAYER
DOCK
INPUT 1
ZONE 1
INPUT 2
ZONE 2
INPUT 3
ZONE 3
INPUT 4
ZONE 4
INPUT 5
ZONE 5
INPUT 6
ZONE 6
INPUT 7
ZONE 7
INPUT 8
ZONE 8
PARTITION
OTHER
AREAS
MIC 1
MIC 2
CDR-1
ME-1
MIC 3
MIC 4
PAGING MIC
PAGING ACCESS
AREA 3
CDPM
1
2
3
4
CDR-1 PORTS
•
DCM-1
CDR-1
AREA 4
CDR-1
Technical Specifications
Line Inputs
Frequency Response
Distortion
Sensitivity
Input Gain Control
Input Impedance
Headroom
Noise
Equalisation
Outputs
20Hz - 20kHz ±1dB
<0.05%, 20Hz - 20kHz
195mV (-12dBu) to 3.1V (+12dBu)
24dB range
47kΩ
>+10dB
-90dB A weighted (0dB gain)
HF: ±14dB/10kHz
MID: ±14dB/1200Hz
LF: ±14dB/50Hz
Balanced Zone Outputs
Minimum load impedance
Maximum output level
External Power Supply
External Supply Input
Power supply
100Hz / -3dB(filter) to 20kHz ±0.5dB
<0.05% 20Hz-20kHz
10dB - 50dB
>2kΩ (balanced)
+12V (PCB jumper for on/off)
>20dB
-120dB EIN 22Hz - 22kHz (150Ω)
HF: ±10dB/5kHz
LF: ±10dB/100Hz
100V-240V AC; 47-63Hz; 1.35A
+12V, 3A; -12V 1A
Physical
Dimensions (w x h x d)
Paging Microphone Inputs
Frequency Response
Distortion
Gain Range
Input Impedance
Phantom Power
Headroom
Noise
Equalisation
775mV (0dBu)
600Ω
+10dBu (2.6V)
Weight
482.6mm x 88mm x 170mm deep
(2U 19” rackmounting unit).
Dimensions do not allow
for rear connectors/cabling.
3.12 kg net
Graphs
DCM-1 Line Input Frequency Response Stereo Output
Cloud Electronics Ltd
DCM-1 Line Input EQ Curves
DCM-1 Line Input Frequency Response
Stereo Output
+10
Cloud Electronics Ltd
+12
+8
+10
+7
+8
+6
+6
+5
+4
+4
d
B
r
+3
+2
d
B
u
A
+1
+2
+0
-2
-4
-0
-6
-1
-2
-8
-3
-10
-4
-12
-5
-14
-6
20
-7
-8
-9
-10
20
50
100
200
500
Hz
1k
2k
5k
10k
20k
DCM-1 Adjacent Line Input Crosstalk
Cloud Electronics Ltd
200
500
Colo r
Line Style
Thick
Data
Axis
Comm ent
1
2
3
4
5
6
1
1
1
1
1
1
Black
Black
Black
Black
Black
Black
Solid
Solid
Solid
Solid
Solid
Solid
1
1
1
1
1
1
Anlr.Ampl
Anlr.Ampl
Anlr.Ampl
Anlr.Ampl
Anlr.Ampl
Anlr.Ampl
Left
Left
Left
Left
Left
Left
Treble Full Boost
Treble Full Cut
Mid Full Cut
Mid Full Boost
Bass Full Boost
Bass Full Cut
Hz
1k
2k
5k
10k
20k
5k
10k
20k
DCM-1 Line Input Frequency Response
Stereo Output
+10
-10
+9
-15
+8
-20
+7
-25
+6
-30
+5
-35
+4
-40
+3
-45
-50
+2
-55
d
B
u
-60
-65
-70
+1
-0
-1
-2
-75
-80
-3
-85
-4
-90
-5
-95
-6
-100
-7
-105
-8
-110
-9
-115
-120
20
100
Trace
Cloud Electronics Ltd
-5
C
r
o
s
s
t
a
l
k
50
Sweep
DCM-1 Line Input Frequency Response Stereo Output
DCM-1 Adjacent Line Input Crosstalk
+0
d
B
DCM-1 Line Input EQ Curves
+14
+9
50
100
200
500
Hz Frequency
1k
2k
5k
10k
-10
20
20k
50
100
200
500
DCM-1 Adjacent Line Input Crosstalk
Cloud Electronics Ltd
DCM-1 Adjacent Zone Output Crosstalk
+0
-5
-10
-15
-20
-25
-30
-35
-40
d
B
C
r
o
s
s
t
a
l
k
-45
-50
-55
-60
-65
-70
-75
-80
-85
-90
-95
-100
-105
-110
-115
-120
20
50
100
200
500
Hz Frequency
1k
2k
5k
10k
20k
Hz
1k
2k
Block Diagram
Architect’s and Engineer’s Specification
All control functions will be self-contained and not require any external computers
or software.The Mixer/Zoner shall be built in a steel chassis for mounting
in a standard 19” rack enclosure.
The front panel shall incude: power switch, backlit LCD display, rotary encoder with
“press”function and software-assignable push-buttons for control functions.One of
the buttons shall control the Mixer/Zoner’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 re-definable by the User.
The front panel will have various LEDs indicating: external paging access, remote
line input selection, remote mic input selection and emergency Music Mute activity.
The Mixer/Zoner 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 a Euroblock connector, four shall also have RJ45 sockets
providing balanced inputs for the connection of optional balanced or unbalanced
stereo external connection plates.The microphone inputs shall be balanced
on RJ45 sockets for the connection of optional external connection plates.
The line Inputs shall each have level trim adjustment via software.
There shall be 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, ReleaseTime 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 fixed 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:
HoldTime, ReleaseTime; Music Attenuation (Mic Priority only).
There shall be a Music Mute Input, a control signal at which mutes the Music
in all Zones. Muting control shall be configurable on either external contact closure
(NO) or short-circuit removal (NC). It shall also be possible to assign any one line
or microphone Input to remain unmuted during Music Mute operation for
Emergency system interface. It shall be possible to assign alphanumeric names to all
Inputs,Zones and Groups; these will still apply after any hardware reset operation.
The Zone outputs shall be balanced, on Euroblock connectors.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 define up to 4 Groups of Zones;
enabling/disabling Groups shall be possible without entering the password.
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 specifically saved.
The Mixer/Zoner shall incude an RS232 serial port permitting remote control
of all unit functions and settings.An optional remote control panel shall be available
for the Mixer/Zoner. The panel shall be provded with IN and OUT sockets
to permit series interconnection of up to 100 panels in any wiring configuration.
It shall be possible to configure a panel 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 Mixer/Zoner shall interface directly with a Cloud CDPM network and/or
any other paging microphone.The (non-CDPM) Paging Mic input shall be 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.
It shall be possible to retro-fit certainType II Bose equaliser cards to any or all
Zone outputs. Compatible cards shall include Bose Product Codes 035467/703/5/6 and 038533 as a minimum.The Mixer/Zoner shall be the Cloud DCM-1;
the remote control panel the Cloud CDR-1; the remote input plates the Cloud
LE-1 (unbalanced line), Cloud BE-1 (balanced line) and Cloud ME-1 (microphone).
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