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Optical sensors/detectors

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  • Member since
    November 2009
  • 8 posts
Optical sensors/detectors
Posted by Phillyf on Monday, January 31, 2011 1:06 PM

Has anyone used The Automatic Block Signaling (ABS) Master carried by NJ International Signals. I beleive a company called TD or TDA produces it.

Has anyone installed signals and used this product. I'm interested in your feedback.

Thanks

  • Member since
    May 2008
  • 4,612 posts
Posted by Hamltnblue on Monday, January 31, 2011 3:01 PM

The product works as advertised.  With the straight optical sensors you sometimes get a bad signal trip with tank cars since they allow more light under the train.  The sensors also do not work in a dimmed or darkened room.  I haven't tried the infrared sensors but have heard that they are better.

Springfield PA

  • Member since
    November 2009
  • 8 posts
Posted by Phillyf on Monday, January 31, 2011 3:31 PM

Hi,

Thanks for your response, how long was the cable?

 

  • Member since
    January 2008
  • From: florida
  • 276 posts
Posted by subman on Monday, January 31, 2011 4:00 PM

Check Rob Paisley`s circuits. They are a lot cheaper and will do the same thing. Make sure the circuit you are looking at matches the configuration of the signal you are going to use. NJ international, & Tomar use common anode, Others use common cathode (Intergrated Signal systems) among others.If you just want ABS then Rob has a board that will do 5 blocks one way, He has a nice optical board that will detect LOW even though it is not on his website and this works for 4 blocks.

Bob D As long as you surface as many times as you dive you`ll be alive to read these posts.

  • Member since
    May 2008
  • 4,612 posts
Posted by Hamltnblue on Monday, January 31, 2011 7:51 PM

Phillyf

Hi,

Thanks for your response, how long was the cable?

 

The cables come pre-made.  They are 6-10 feet long. You can easily lengthen them if needed.

It also allows you to configure common cathode, and anode and also has wiring for searchlight, 2 and 3 led signals.

Springfield PA

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