Arriving with BA in business at 0930 on a Thursday, have no bags. Can I make it from T2 (either by bus, Skyline, or walking?) in time for ICE1521 that departs at 1002?

I've been to FRA several times but I can't remember if there is a walkway between the two, or if it's even possible to make it in under 30 minutes (provided flight arrives on time and immigration queue minimal).