Cloud Electronics DCM1 - Manual (Page 45)

DCM1 & DCM1e Installation and User Guide v1.0 45
UTILITY
The Emergency Source can be set from the SYSTEM
tab of the Utility Tool; select the input to be used from
the Source drop-down list in the Emergency area.
Click Send System to transmit the new setting.
Emergency Level
SELECT INPUT Rotary Control sets level
Emergency Level
Any emergency messages routed through the system using
the Music Mute/Emergency Source outlined above should be
at a higher volume than normal music programme material.
(This is likely to be a requirement of Statutory Regulations.)
This menu function allows adjustment of the audio level of the
Emergency Source (see previous menu function) when Music
Mute is active. It applies only when a Line Input is assigned as
the Emergency Source. If a Mic Input has been selected as the
Emergency Source, the mic level should be set on the ME-1
module to which the Emergency microphone is connected.
The default setting is maximum, but if this level causes problems
with system overloading and inadequate intelligibility, it can be
reduced with the Emergency Level menu function.
Turn the rotary control anticlockwise to reduce the level. The
relative level is shown on the display as a bargraph.
The numeric buttons are not used in this function.
UTILITY
The Emergency Level can be set from the SYSTEM
tab of the Utility Tool; select the required value from the
Mute Level (dB)
drop-down list in the Emergency
area. Click Send System to transmit the new setting.
Configure Music Mute
SELECT INPUT Rotary Control selects NC or NO
Mute Contacts
Normally Open
The Music Mute input’s trigger mode may be configured as
a pair of normally-open (N/O) or normally-closed (N/C)
contacts.
The rotary control selects either Normally Open (the
default setting) or Normally Closed.
Set the function required by the emergency system being
interfaced to. Select Normally Closed if the external
equipment maintains a short-circuit in place at the Music
Mute connector pins, removing it only when an emergency
condition arises. Select Normally Open if the external
equipment signals an emergency condition with a contact
closure.
UTILITY
The choice of Music Mute N/O or N/C operation can
be set from the SYSTEM tab of the Utility Tool; click
the appropriate Mute Contacts checkbox in the
Emergency
area. Click Send System to transmit
the new setting.