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Chapter 4- Optional Equipment 42
4.1 AS400 Alarm Interface Board 432
4.1.1 Remote control inputs 42
4.1.2 AS400 Interface 42
4.1.3 Alarm outputs 44
4.1.4 X2 Extension 44
4.2 Remote Alarms Interface Board 45
4.2.1 Alarm outputs 45
4.3 Additional 3 X A5400 Interface 48
4.4 Remote Alarm Monitor 49
4.4.1 Connections 49
4.5 Battery cabinet/ Racks 51
4.6 Battery circuit breaker boxes 54
4.6.1 Temperature Sensor Board 54
4.7 Communications Kits 56
Chapter 5 - Maintenance 58
5.1 Introduction 58
5.2 Safety Precautions 58
5.3 Scheduled Maintenance 58
5.3.1 Daily cheeks 58
5.3.2 Weekly checks 59
5.3.3 Annual service 59
5.3.4 Extended service 60
5.3.5 Battery maintenance 60
5.4 UPS Status parameters 61
Chapter 6 - Troubleshooting 63
6.1 Troubleshooting UPS systems 63
6.1.1 Operating parameters and limitations 63
6.1.2 General Troubleshooting Procedure 63
6.2 LED interpretation 65
6.3 Display panel message interpretation 66
6.4 Number of messages, red LED and buzzer 68
Chapter 7 - 1 +1 Parallel System 70
7.1 Generality 70
7.1.1 Introduction 70
7.1.2 Design concept 73
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