Grounding Cable for DJM 350 Query

Hi,

I bought the djm 350 second hand and I'm wondering if the cable that came with it, is the one that came with it originally. It is a two prong power cable, not the usual 3 prong power cable that has 1 prong for earthing. I tried google and this forum for an answer, also the djm-350 manual but could not find an answer.

Thanks