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General Description
PAGASYS GEN II (P-SYS-G)
Federal Signal www.fedsig.com
2.0 General Description
2.1 Introduction
This document is a description of the features, installation, operation, and maintenance
of the PAGASYS GEN II Public Address and General Alarm System. The PAGASYS
GEN II system provides robust public address and general alarm services for use in a
variety of environments, including, but not limited to, offshore petrochemical facilities,
onshore petrochemical facilities, and onshore industrial facilities.
2.2 Overview
The public-address functions include the broadcasting of live-voice announcements from
one or more microphones across all or selected areas of the facility. The general alarm
functions include the broadcasting of pre-recorded alarm tones or voice messages across
all or selected areas of the facility. These general alarm functions are in response to
alarm conditions initiated manually, or by third party automatic equipment (such as fire
and gas detection, process monitoring or other safety monitoring systems). The system
also supports non-emergency, pre-recorded messages for routine operational events. The
above functions are supplemented by visual indication through beacons, status lamps and
so forth, as required.
System robustness is maintained though redundant system architectures, comprehensive
fault monitoring functions, and automatic re-routing of audio signals and control signals
to bypass failed components.
PAGASYS GEN II is a rack-mounted, software-controlled system that can incorporate
duplicate control systems and redundant/protected audio signaling.
2.3 System Architecture
PAGASYS GEN II consists of one or more central equipment cabinets.
These cabinets contain:
•
Control Subsystem
: Manages and monitors the components of the system.
•
Power Amplifiers
: Generate amplified electrical audio signals to speaker line level
(typically 100 V or 70 V) and have a typical continuous power output of several
hundred watts.
•
Audio Subsystem
: Contains audio routing and mixing, alarm tone generation, audio
message stores and other related audio processing.
•
I/O Subsystem
: Interfaces to field and third-party equipment.
A standard PC is often installed in the central equipment cabinet for configuration, test
and fault reporting. It is not required for the normal operation of the system.
