RZD RA1 0076Ostanovochnyy Punkt 134 km Ostanovochnyy Punk..

Is it really a stop? Oh and I was wondering when I looked at your pictures: what is this wire russian rolling stock have on their roof?

Yes' it's really a stop, but it's the "stop on demand". Train stops here only if there're people waiting for it or someone asks a driver to stop.
Concerning the wire - it's the antenna of radio communication. There're two types of antenna, they're depicted on the following pictures:
http://c.foto.radikal.ru/0610/67c414e14643.jpg
http://c.foto.radikal.ru/0610/747238be97ce.jpg