Provides the lightning protection function and reports the alarm that indicates a surge protection failure.
Reports the board in-position alarm.
Supports 1+1 hot backup. Any one PIUB can supply power to an entire subrack.
SSN1PIUB is the power interface board for Huawei OSN3500 and OSN 7500, provide power supply, lighting protection function and filtering function. -48V DC input, Part number is 03020TLF, 1+1 redundancy configuration as default.






Burak
Turkey
What is the different between PIUA and PIUB of OSN3500?