Hi Htoon linn, Which HBA card are you using? Which ports do you have connected? Did you follow the cabling guides? [URL] And page 34 [URL] Did you set the ports on the switch with a fibre channel profile? Page 259 [URL]
I have configured Dell EMC SCv3020 connect with S4148U-On via 16Gb fiber channel. But I have received the error message "no ports are cabled" So let me know which configuration need to configure in S4148U-On.  [IMAGE]  
SCv3020 no ports are cable