Office Phone Shop have the Siemens UPSC-D, part code S30122-K5660-M300, in stock.
This unit is a critical spare power unit for the Hipath 3550 and 3350. It attaches to the back of the system and operates both the power supply and battery manager.
We fully test and provide a warranty with all remanufactured & refurbished business telephone systems and business telephone parts.
Please quote Siemens UPSC-D or part number S30122-K5660-M300 when contacting us.