Most Ooito line local train services are now by E127 series, but a few of 115-1000 series are still in charge for some especially trains that get out of Ooito line. When they get in Shinonoi line from Matsumoto, the ATS (Auto Train Stop ) system there in Shinonoi line seems different from the ones in Ooito line, so E127 series can not get out of Ooito line due to their system.
Hayaokidori website
