1. LCD display
2. Bypass indicator
3. Status indicator
4. Charging indicator
5. Fault indicator
6. Function keys (Please refer to operation chapter for the detailed operation)
7. AC input terminals
8. AC output terminals
9. Grounding terminal
10. Battery input
11. Circuit breaker
12. RS-232 communication port
13. USB communication port
14. EPO port (Emergency power off)
15. Parallel communication port (only for parallel model)
16. Current sharing port (only for parallel model)
17. Intelligent slot