Page 8UPS REAR VIEW9E15Ki/9E15KiXL/9E20Ki/9E20KiXLWith backpanel cover9E15Ki/9E15KiXL/9E20Ki/9E20KiXLWithout backpanel cover④ RS232 communication port and contacts ⑩ Input switch⑤ USB communication port ⑪ Cover for terminals⑥ Slot for optional communication card ⑫ Terminals for I/O cable connection (refer to related section)⑦ Cooling fans ⑬ Earthing screws⑧ Output switch ⑭ Fuse⑨ Manual bypass for maintenance ⑮ Tie wrap hold-down2.2.3 EBM REAR VIEW① Fuse② Cover for terminals③ Tie wrap hold-down④ Wheels (front wheels swivel and can be locked, fixed rearwheels)⑤ Terminals for I/O cable connection (refer to related section)⑥ Earthing screws