Solution:

This connector is used to share loading of 2V on P8 and P9 connector. By the specification of RPS-30048, the maximum current is 4A at 2V rail. Under full loading, it generates about 48W power consumption at 2V rail. The P8 and P9 connector could not suffer under this situation. So, the 2-pin cable is designed to avoid this problem. It should be connect to backplane for supplying 2V. B ut, the IPC-622's backplane doesn't provide this connector. So, please ingore the usage of 2 pin cable due to it doen't influence the oparation of power supply.