Seagull Safety custom builds these systems to suit specific Customer requirements. They are intended for use on petrochemical industry sites such as drilling rigs, offshore platforms, refineries etc where the highest degree of integrity is required. They are configured to have two totally independent systems with complete fault monitoring. Two basic configurations are available:  With each independent system running half the horns / speakers with different    cable routings so that in the event of failure of one system, only half of the horn /    speakers are lost. As per diagram below.  With one set of speaker zones but with duplicated components automatically    replacing failed components such that the overall system will not be affected. For more detailed information on the specification see 11 page document “GENERAL DESCRIPTION OF PAGA OPERATIONAL PRINCIPLES ”

WALL MOUNTED ACCESS PANEL ACCESS PANEL DUPLICATED CIRCUITS ACCESS PANEL 19” RACK MOUNT PARTY PAGE SYSTEM DIGITAL RADIO & ALARM UNIT-1

BASIC SYSTEM DESIGN CRITERIA Built in accordance with BS 5839 Pt 8; BS 7443 and Customer Specification Immune from and shall not radiate signals exceeding limits of BS EN 50081, BS EN 50082 and BS EN 55014 Terminology for characteristics and measurement techniques of Sound System Equipment is in accordance with BS 6840; IEC 268 Fully duplicated systems monitored by central microprocessor controlling all tests, collating data, analyzing results and displaying error codes Interconnection from Fire & Gas, Process Control, Shutdown systems etc will be monitored for open and short circuit Main Control Systems will be built using 19” Rack equipment Access Panels can either be 19” rack, wall mounted or custom built to suit site requirements Power Supply 110 - 250V ac and 24V dc with battery backup, all inside main control equipment Access Panel Circuits will be fully duplicated and fault monitored System surveillance design will ensure full security of complete emergency control and audio paths Integrity, fault monitoring and warning shall be in accordance with BS 5839 Pt 8 1998 All Critical Control and Audio Paths from the external initiation sources, secure access unit/s and emergency message / tone units to the field mounted horns / speakers will be fully monitored The monitoring system will show all faults using a 7 segment LED display and can provide facilities for remote indication of these signals if required. All monitoring of audio paths will be inaudible Failure of any card or module required to maintain system integrity shall be clearly identified and the system shall provide for automatic substitution Beacon monitoring circuits for continuity checking   Additional options      PABX Interface      Party Page System Interface