linkstation # echo -n "commands" > /dev/ttyS1
| Command | contents | |
| \30\30\30\30 | ? | /www/script/melsub_diskcheck.sh sends. | 
| [[[[ | OK | POWER LED blinks slowly. | 
| ]]]] | OK | A cooling fan begins high-speed rotation. | 
| \\\\ | OK | A cooling fan begins low-speed rotation. | 
| >>>> | ? | ppc_uartd sends them on boot. | 
| AAAA | ? | ppc_uartd sends them on boot. | 
| CCCC | OK | reboot send them before shutdown -r now / reboot. | 
| EEEE | OK | shutdown send them befor shutdown -h now. | 
| FFFF | ? | ppc_uartd sends them on boot. | 
| JJJJ | ? | ppc_uartd sends them on boot. | 
| KKKK | ? | ppc_uartd sends them on boot. | 
| QQQQ | ? | ppc_uartd sends them on set timer. | 
| RRRR | ? | end of clear flash memory. | 
| SSSS | ? | start of clear flash memory. | 
| TTTT | OK | finish update flash memory stop blinking POWER, DISK FULL and DIAG LED. | 
| UUUU | OK | start update flash memory start blinking POWER, DISK FULL and DIAG LED. | 
| VVVV | OK | turn off DISK FULL LED | 
| WWWW | OK | turn on DISK FULL LED | 
| XXXX | OK | DISK FULL LED stops blink | 
| YYYY | OK | DISK FULL LED starts blink | 
| ZZZZ | OK | stop POWER LED starts blink slowly. | 
| gggg | OK | DIAG LED starts 3 times blink(partition error) and shutdown. | 
| iiii | OK | DIAG LED starts 4 times blink(problem in the cooling fan) and shutdown. | 
| kkkk | OK | DIAG LED starts 5 times blink(problem in the flash memory) and cut power(not shutdown). | 
| mmmm | OK | DIAG LED starts 6 times blink(problem in the hard drive) and shutdown. | 
| oooo | OK | DIAG LED starts 7 times blink(problem in RAM/LAN/HDD controller.) and shutdown. | 
| Why don't you hack the LinkStation/KURO-BOX |