Anyone Recognize This Signal Board

It "kinda" looks like an Atlas non-derail board.  With the one photo, I can't quite make out all the details.

ATLAS #6924 Non-Derail Circuit Board

https://shop.atlasrr.com/p-230...l-circuit-board.aspx

That was quick, that does certainly look like the board, thanks!

If the board came with that Atlas dwarf signal, I am pretty sure I may have instructions. I have an unopened box of (4) of the Atlas dwarf signals. I will look tomorrow morning and let you know.
Donald

That would be cool.   I wonder if someone can use this board?

@gunrunnerjohn posted:

I found this in a box of stuff, trying to identify it.  Not sure exactly what it's for, it has a signal light, and lots of relays.  Looks to be perhaps a switch controller?  No company ID, and I've never seen this board before.  It has a Microchip PIC possessor on the board, so there is some "smarts" for it's function.

Click on graphic to enlarge.

@GRJ

This is (as previously mentioned) an Atlas non-derail board.

A new and much improved version has been designed, prototypes assembled and tested, and will appear as the Switch Accessory Module.

Lou N

John,

It looks exactly like the non-derailing switches we use on the clubs layout.

Yep, that's the Atlas #6924 non-derailing board.  The dwarf signal is a #6931 (also came as the #6935 4-pack), which came with a different control board.  However, the signal can be plugged into the 3-pin header in the upper left of the 6924 board in John's photo.  IIRC, the wires from the dwarf signal have to be re-arranged in the plug to match the 6924 board.  It appears this has already been done to the signal in the photo.  Here's a link to the 6924 Instructions PDF, and 6931 Instructions PDF.

Thanks guys, I was curious.  I figured it was some sort of control board for switches, but the multitude of relays seemed overkill for a non-derailing board.  I'll have to look at the instructions just to see why they needed all those parts.

BTW, if anyone wants it, it's yours for the cost of shipping, probably $4 in a padded envelope.

Hey John. I was wrong. I will still post the pics of the directions and the board for the Atlas dwarf signal. The other instructions is for the Atlas mast signals that use a different board.

Donald

@gunrunnerjohn posted:

Thanks guys, I was curious.  I figured it was some sort of control board for switches, but the multitude of relays seemed overkill for a non-derailing board.  I'll have to look at the instructions just to see why they needed all those parts.

@GRJ

The two smaller relays operate momentarily to throw the switch machine.  The larger relay operates in a set/reset mode to power frogs or rails in a double crossover or in a DC/DCC mode for HO.

Lou N

I figured the big relay must be for track power.  A lot of parts on this one, amazing when I look at the tiny DZ-2500 that does most of that and command as well.   You do need a relay with the DZ-2500 for the track power function...