4.5 Shut Down The Liebert GXT4 ............................................................................................................................. 25
4.6 Disconnecting Input Power From The Liebert GXT4 ........................................................................................... 26
Chapter 5 Communication ................................................................................................................................................. 27
5.1 Liebert IntelliSlot Port Communication ................................................................................................................ 27
5.2 USB Port Communication ................................................................................................................................... 27
5.3 RS232 Port Communication ............................................................................................................................... 28
5.4 Terminal Block Communication .......................................................................................................................... 28
5.4.1 Any Mode Shutdown ............................................................................................................................... 28
5.4.2 Battery Mode Shutdown .......................................................................................................................... 29
5.4.3 On Battery Mode ..................................................................................................................................... 29
5.4.4 Low Battery .............................................................................................................................................. 29
Chapter 6 Maintenance ..................................................................................................................................................... 30
6.1 Replacing The Internal Battery Pack ................................................................................................................... 30
6.2 Battery Charging ................................................................................................................................................. 32
6.3 Precautions ......................................................................................................................................................... 32
6.4 Checking UPS Status ......................................................................................................................................... 32
6.5 Checking UPS Functions .................................................................................................................................... 32
Chapter 7 Troubleshooting ................................................................................................................................................ 33
7.1 UPS Symptoms................................................................................................................................................... 33
7.1.1 Indicator And LCD Display Panel ............................................................................................................ 33
7.1.2 Audible Alarm .......................................................................................................................................... 33
7.2 Troubleshooting .................................................................................................................................................. 34
Chapter 8 Battery Cabinet ................................................................................................................................................. 35
Chapter 9 Specifications ................................................................................................................................................... 36
Chapter 10 Product Warranty Registration ........................................................................................................................ 40