78 /108 EXPENDER（BMC） debug模式进入方法
Change jumper to debug mode
Debug mode setting : J2 : [2,3] close ; J5 [2,3] close ; J3 with 3 pin cable [ brown, black, red]
Connect the screen to the computer using terminal software, the baud rate is 38400
JBOD主機不開機的情況下，minicom登錄
注意登录名及密码：The account is "sysadmin" and the password is "superuser"
