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User and Installation Manual
Compact MPA
4.8 VOLUME OVERRIDE
In addition to the entertainment mute functionality, the Compact MPA is equipped with a volume override signal as a relay
driver output (Open Collector source/sink) which is activated during both GA and Emergency PA. This signal is used for reset-
ting local entertainment (etc.) volume control settings related to the GA/PA system. Terminals 49 through 60 can be used for
this purpose. Ref. 4.4 and drawing in 9.3.
4.9 POWER FAILURE
The Compact MPA is supplied from two different sources: primary and backup. The system is equipped with a dry closing
contact (NO & NC) output at terminals 93 and 95 that is activated whenever one of these sources fail, either primary or
backup. This signal can either be used as an interface to external surveillance and monitoring systems or for direct signals, as
rotating/flashing lights or light columns. Ref. drawing in 9.3
.
4.10 GENERAL WARNING
The Compact MPA system is equipped with a general warning dry closing contact (NO) output at terminals 94 and 96. This
control output can be used as an interface to external surveillance and monitoring systems for indication of system internal
module failure indications:
„ The synchronisation link between system A and B is defect
„ A control unit is defect or disconnected
4.11 DIP SWITCH CONFIGURATION
There are two sets of dip switches on the terminal board for signal routing configuration. S7 can be used to enable entertain-
ment to zones Z1 – Z6. This options routes entertainment audio to the enabled zones when entertainment input is activated,
as long as no high priority audio (PA, EMPA, alarm) is activated.
S8 has switches for selecting PA and/or EMPA on the external PA out, wether PA, EMPA and Alarm mute entertainment and
if the system is an A- or B-system.
S7 Function (when set to 1) S8 Function (when set to 1)
1 Enable entertainment in zone Z1 1 PA routed to External PA Out
2 Enable entertainment in zone Z2 2 EMPA routed to External PA Out
3 Enable entertainment in zone Z3 3 PA mute entertainment
4 Enable entertainment in zone Z4 4 EMPA mute entertainment
5 Enable entertainment in zone Z5 5 Alarm mute entertainment
6 Enable entertainment in zone Z6 6 System is B-system