User guide

DCM-1 User Manual v1.0
Conguration
28
SPE
ZONES 1 AND 2 ARE STEREO
ZONES 3...8 ARE MONO
+
MIC PRIORITY
MICROPHONE INPUTS
EQ
VCA
ATTENUATOR
LINE 8
LINE 7
LINE 6
LINE 5
LINE 4
LINE 3
L
R
LINE 2
LINE 1
EXTENSION PORTS
1
2
3
+
+
LINE 8
BALANCED
R
L
LINE 1
LINE 2
LINE 3
LINE 4
MIC 1
MIC 2
MIC 3
MIC 4
GAIN
SOURCE SELECT LOGIC
CDR-1
CDR-1 PORTS
EQ CONTROL BY CDR-1 IS ONLY
AVAILABLE IN ENGINEER MODE
LINE PRIORITY
LOGIC
GAIN IS APPLIED
ACCORDING TO
SOURCE SELECTED
+
+
EQ
PAGING ACCESS
LOGIC
PAGING
MICROPHONE
INPUT
CDPM IN
CDPM THRU
+
PAGING ACCESS
Z2Z1
Z3
Z4
Z5
Z6
Z7
Z8
0V
+12V
CDR-1
PORT
A
PORT
A
PORT
B
PORT
B
ONLY RIGHT STEREO SIGNAL
SHOWN FOR CLARITY.
ZONES 3...8. SIGNALS ARE SUMMED
TO MONO BEFORE SOURCE SELECT.
1
2
3
1
2
3
1
2
3
System Block Diagram
The DCM‑1 can be congured in a variety of ways to suit
all installed situations. Most conguration functions are
accessed through the menu system.
For convenience, the DCM-1’s basic block diagram is
repeated above.
The menu system has two modes: User Mode and Installer
Mode.
User Mode
User Mode is the default menu system mode which is
available at all times. It provides the user with the system
control functions needed on an everyday basis: music
source selection and level control for each zone, and group
activation.
Installer Mode
Access to Installer Mode is key-protected. The user should
ensure that only authorised staff who have been trained
in the DCM‑1’s conguration functions know the key.
Installer Mode allows adjustment of zone EQ, maximum and
minimum levels, microphone assignments, paging and priority
parameters, group membership and all other system setup
parameters.
Installer mode is selected by pressing the INSTALL button,
and entering the key code via the numeric buttons below
the display in response to the prompt Enter Key. The key
is always a 4‑digit number; only digits 1 to 8 are allowed.
The factory default key can be found in the Appendix; users
are strongly urged to change the key as soon as the system
is commissioned. A time‑out applies to Installer Mode; if
no keys are pressed within 45 seconds, Installer mode will
cancel and the unit returns to User Mode.
Section 3 : Conguration