19-02-2014, 10:40 AM
Hello,
This is Kannati, I am having a doubt on treadle operation i.e. where the QNR and QRR relays can use on signalling and also all treadles are having both detection contacts i.e.(QNR/QRR) or it depends upon type of treadle. I know that most of all treadles are using for Level crossings for strike in. and also I am using the treadle for replacement for distant signal in one of my project.
Can any one please clarify above and also requesting any documents regarding treadle operation having both QNR/QRR relays.
Many Thanks
This is Kannati, I am having a doubt on treadle operation i.e. where the QNR and QRR relays can use on signalling and also all treadles are having both detection contacts i.e.(QNR/QRR) or it depends upon type of treadle. I know that most of all treadles are using for Level crossings for strike in. and also I am using the treadle for replacement for distant signal in one of my project.
Can any one please clarify above and also requesting any documents regarding treadle operation having both QNR/QRR relays.
Many Thanks