Power Pack

I have a Power Pack that came with the bachman ez-track system. I notice that the power, plugs into the rerailer. Seeing ohter catalogs and pictures i’ve noticed that the power pack don’t plug. They have wires connecting to the track. Do I have to buy another power pack to use the wires?

Help a beginner,
Thanks,
Scott

you can cut the wire so that you can use it.