User guide
DCM-1 User Manual v1.0
Installation
16
1
Line Inputs 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 plates (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
plate. 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 plate.
3
Line Inputs 5 to 7: inputs for music sources 5 to 7, on
phonos only.
4
Line Input 8: Input 8 is available both as unbalanced on
phonos and electronically-balanced on 2 x 3-pin 3.5mm*
Phoenix-type 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 plates. 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 plates.
6
Paging mic input: balanced input for the connection
of an external paging microphone. This input is enabled
via the access connector [7]. Adjacent to the 3-pin
3.5mm* Phoenix-type connector are preset controls
for mic gain and HF/LF EQ. Phantom power is available
(enabled by internal jumper).
7
Paging Access connector: 10-pin 5mm* Phoenix-
type connector providing two distinct functions. If the
DCM-1 is being used with a 3rd.-party paging system,
this connector provides contact-closure selection of
the zone(s) to be paged. If a Cloud CDPM is the only
type of paging system being used, the connector can
be reassigned as an output port, the 8 pins becoming
per‑zone open‑collector outputs which can be used
(typically) for external level restoration. 0v and +12v are
provided on the remaining two pins.
8
Zone Outputs 1 and 2: electronically-balanced
outputs on 3-pin 3.5mm* Phoenix-type 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 full stereo. Each Zone
Output can be recongured 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 CDPM or 3rd.-party systems) in
that zone.
11
CDPM Ports: two RJ45 sockets, IN and THRU. IN
is for the connection of Cloud CDPM Series paging
microphones; THRU is used when a system employs
multiple DCM‑1s. DC power, zone selection data and
the paging microphone signal are all catered for on
the IN socket. The adjacent preset control adjusts the
CDPM microphone level.
12
CDR-1 Ports: four RJ45 ports for connection of
CDR-1 remote control panels. CDR-1s may be daisy-
chained, and the installer may use one or more of the
four ports for individual or daisy-chained CDR-1s as the
building layout dictates.
13
RS232 serial interface: a 9-pin female Dsub
connector providing a bi-directional RS232 interface,
enabling control of the DCM-1’s primary functions from
an external system.
14
Music Mute input: 2-pin 5mm* Phoenix-type
connector for interfacing the DCM‑1 to a re alarm
or other emergency system. The input is congurable
for use with either Normally Open (NO) or Normally
Closed (NC) contacts; shorting (or removing a short)
will mute music in all zones (see page 42). One input
source may be protected from this mute if wished,
permitting the input to be used for automatic or manual
evacuation messages (see page 42).
15
DC power connector: Locking 4-pin power mini-DIN
for connection of the DCM-1’s external DC PSU.
(* dimension refers to pin pitch)
5
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8 910
4
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1
2
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13
Description of rear panel