SR150 Power

I have an SR150 received but NO power cable. I'm connecting to a classic E120 MFD via Raynet to RJ45 connector. I'm unable to find the power cable ANYWHERE and it's different from the SR100 cable I have onboard. Can I access the inside of the SR150 to hard-connect the three wires? Or does anyon know where I can find an SR150 power cable FAST?

Thanks

Tim