GE P4A Technical Manual page 4

Contents
4.1.3 Front Serial Port (SK1)
4.1.4 Front Parallel Port (SK2)
4.1.5 Fixed Function LEDs
4.1.6 Function Keys
4.1.7 Programable LEDs
5 Rear Panel
6 Boards and Modules
6.1 PCBs
6.2 Subassemblies
6.3 Main Processor Board
6.4 Power Supply Board
6.4.1 Watchdog
6.4.2 Rear Serial Port
6.5 Input Module - 1 Transformer Board
6.5.1 Input Module Circuit Description
6.5.2 Transformer Board
6.5.3 Input Board
6.6 Standard Output Relay Board
6.7 IRIG-B Board
6.8 Fibre Optic Board
6.9 Rear Communication Board
6.10 Ethernet Board
6.11 Redundant Ethernet Board
6.12 Coprocessor Board
6.12.1 Current Differential Inputs
6.12.2 Coprocessor board with 1PPS input
Chapter 4 Software Design
1 Chapter Overview
2 Sofware Design Overview
3 System Level Software
3.1 Real Time Operating System
3.2 System Services Software
3.3 Self-Diagnostic Software
3.4 Startup Self-Testing
3.4.1 System Boot
3.4.2 System Level Software Initialisation
3.4.3 Platform Software Initialisation and Monitoring
3.5 Continuous Self-Testing
4 Platform Software
4.1 Record Logging
4.2 Settings Database
4.3 Interfaces
5 Protection and Control Functions
5.1 Acquisition of Samples
5.2 Frequency Tracking
5.3 Direct Use of Sample Values
5.4 System Level Software Initialisation
5.5 Fourier Signal Processing
5.6 Programmable Scheme Logic
5.7 Event Recording
5.8 Disturbance Recorder
5.9 Fault Locator
5.10 Function Key Interface
Chapter 5 Configuration
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