jotron MPA 1600, User And Installation Manual, Page: 41 / 62

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User and Installation Manual
Compact MPA
7 OPERATING PROCEDURE
7.1 INTRODUCTION
The MPA-system is a marine and offshore Public Address system. It meets the requirements for PA/GA, entertainment and
distribution on board ships and mobile offshore units. The system conforms to SOLAS, IMO and IEC regulations. Based on
module design and flexible configuration, it covers a wide range of installation complexities – ranging from small single loop
systems to large duplicated systems. The operator panels are available in different layouts, with or without alarm buttons.
These panels are listed below:
1601 – Access panel with zone and EM/PA buttons, but without alarm/cancel buttons. For flush mounting.
1603 – Alarm panel with only alarm/cancel buttons. For flush mounting.
1605 – Access panel with zone, EM/PA, and Alarm/cancel buttons. For table top mounting.
1606 – Access panel with zone, EM/PA, and Alarm/cancel buttons. For 19”/ flush mounting.
1643 – Access panel with zone, EM/PA, and Alarm/cancel buttons. For wall/desk mounting in E.X areas.
The MPA-system allows operators to perform paging, emergency paging and active alarms from suitable operator panels.
Optional entertainment functions are also provided.
7.2 PREREQUISITES
This operating description is based on a IMO/SOLAS-compliant configuration. To reproduce this, please make sure that:
• The system is set to be a duplicated system.
• Amplifiers have the correct preset.
• Control units have been set up with attention tones “dongding.mp3” for EMPA and “dingdong.mp3” for PA.
• Delayed activation has been set for Alarm, EMPA and Cancel buttons on the Control Units.
• Zone selection for EMPA is all zones.
• There are at least two alarms enabled, with “GeneralAlarm.mpal” and “FireAlarm.mpal” as alarm tones.
• General Alarm must have the highest priority.
• The user buses for connected access panels have been enabled and priority is correctly set.
• External Alarms input are configured for fire detection system
(applies if fire alarm is integrated into the PA/GA system).
• “No PA under alarm” and “No alarm under EMPA” has been checked (enabled).
These can be found under the “Advanced”-tab.
• “Enable NORSOK” is not checked (disabled). This can be found under the “Advanced”-tab.
„ Please see the configuration-section for more details on how to set up the MPA1600.
7.3 OPERATING DESCRIPTION
7.3.1 EMERGENCY PAGING
Emergency Paging (EM PA) is the highest priority paging method within the MPA 1600 system.
7.3.1.1 PRIORITY
• EM PA overrides any audible entertainment channels within the system while active.
• EM PA overrides any external entertainment systems by means of an entertainment signal while active
(see chapter 5.4 and 10.2).
• EM PA overrides any volume controls (entertainment) while active.
• EM PA overrides normal paging (PA)
.
• EM PA overrides General Alarm (GA) and other audible alarms while active.
• EM PA overrides external GA systems by means of an external GA mute signal while active
(see chapter 4.4 and 9.3).