KTP3002 power supply is designed for KTP3001 system platform, the output voltage is +24V, +12V, -12V, +5V and -5V, the output power is 240W, one KTP3002 module can serve 8 optical modules inserted in the system platform simultaneously, KTP3001 has two slots for the KTP3002 to plug in, so the system can work either with the single power supply or with the double power supply, the main output ports (+5V and+24V) have the features of load-sharing, so the current flows the load of +5V and +24V shared alike between the main power supply and the backup power. The plug-in designing make the system maintenance convenient and flexible and the hot-swappable and load-sharing design make the power supply more steady.