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| Re: Questions from the eager & curious (861010) | |||
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Re: Questions from the eager & curious |
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Posted by SelkirkTMO on Wed Nov 18 23:57:54 2009, in response to Re: Questions from the eager & curious, posted by Mike W. on Wed Nov 18 23:51:05 2009. You're welcome! Yes, the key when inserted, takes away indication from the motorperson (light on the air gauge goes out), and when it's removed after the doors really are closed and locked, indication comes back in (lamp goes back on again) ... the new tech trains and many modified older ones have a pair of "door enabler" buttons in the motorperson's position which must be pressed to enable the opening and closing of doors on the proper side of the train ... this is MTA's solution to some errant conductors in the past who opened up the doors on the wrong side.The "control" of indication is all in the interlock switches in each door along with the key withdrawal ... nothing moves until the light comes back on. Propulsion is also interlocked into the indication circuit so that you cannot move the train without indication unless you hit a bypass switch in the cab and explain WHY you did so to your trainmaster. |
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