By default, uplink port is 1GE mode, please input the following commands to enable 10G mode.
Login: admin
Password:******
epon-olt> ena
Password:******
epon-olt# conf t
epon-olt(config)# debug mode
epon-olt(debug-mode)# set giu mode sfp+
epon-olt(debug-mode)#exit
epon-olt(config)#write
epon-olt(config)#reboot