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4 Optional Equipment 35
4.1 AS400 Interface Board (#10021512003) 36
4.1.1 AS400 Interface board outputs 36
4.1.2 Remote control inputs 36
4.1.3 Calibration 36
4.2 4-Way AS400 Interface Board (#100201120004) 38
4.2.1 Remote control inputs 38
4.2.2 Calibration 38
4.3 Output Interface (Remote alarms) Board (#100215120007 &
#100215120002) 40
4.3.1 Alarm Outputs 40
4.3.2 Remote control inputs 40
4.4 Remote Alarm Monitor (RAM) for Single Module and 1+1 UPS System
42
5 Maintenance 47
5.1 Introduction 47
5.2 Safety Precautions 47
5.3 Scheduled Maintenance 47
5.3.1 Daily checks 47
5.3.2 Weekly checks 48
5.3.3 Annual Service 48
5.3.4 Extended Service 49
5.3.5 Battery Maintenance 49
6 Troubleshooting 51
6.1 Troubleshooting UPS systems 51
6.1.1 Operating parameters and limitations 51
6.1.2 General troubleshooting procedure 51
6.2 Display Panel Message Interpretation 55
ANNEXURE 57