Need a simple wiring diagram for a Tomar 2 light Semaphore to be controlled by IRDOT -1. I have the Semaphore connected to a Tortouse now. So the diagram I assume needs to have this connection to work the arm.
Thanks in advance
Harold
Sorry about that Mel .I was thinking about a Tomar Signal at the same time writing Semaphore. I am actually looking for both for the layout.
Doesn't the Tortoise have internal switches we could use? I you have a diagrahm for the Tomar it would be great.
what would like to happen based on the tortoise position and the irot?
a semaphore requires a servo, right?
greg - Philadelphia & Reading / Reading
gregc what would like to happen based on the tortoise position and the irot? a semaphore requires a servo, right?
wolfman halI was thinking about a Tomar Signal at the same time writing Semaphore. I am actually looking for both for the layout.
I'm reading a 2 light Tomar and a semaphore
Henry
COB Potomac & Northern
Shenandoah Valley
Henry is correct. Right now with the virus we are not going out ( Live in Miami ).My layout is complete so I decided I wanted to take this time to add more signals. I have 5 IRDOT devices that have been laying around. Now would be a good time to put them to use. This is why I would like to get a couple of wiring diagrams.
Stay safe
1. 5 IRDOT-1 infra red detectors in the drawer
2. ! Semaphore connected to a Tortouse and a switch. (Working)
3. Will buy 4 Tomar H840 3 light signals
Make the Semafore and signals work when the train roll over the detectors. That is why I need wiring diagrams.
wolfman hal 1. 5 IRDOT-1 infra red detectors in the drawer 2. ! Semaphore connected to a Tortouse and a switch. (Working) 3. Will buy 4 Tomar H840 3 light signals Make the Semafore and signals work when the train roll over the detectors. That is why I need wiring diagrams. Harold
i assume a single signal head is used before a turnout to indicate if the route selected by the turnout is clear using Separate IRDOT-1s on each track the turnout routes to. The Tortoise determines which IRDOT to use to determine the signal indication
i think the challenge is getting the RDOT-1 to control 2 LEDs thru a single connection that can be routed thru an SPDT contact on the tortoise. (A different solution is possible if both SPDT contacts are available)
Under "LED indication", they show 2 LEDs, but the green one is actually driven thru a resistor to the plus power terminal, 3, and uses the open-collector pin-2 output to turn it off when the circuit is active.
since no resistor is in series with the red LED connected to pin-5, i wonder if pin-5 can also sink current and be used to turn on an LED connect to plus power, pin-3. A voltmeter could confirm this.
RR_MelAfter reading your last post several times I’m confused again. I looked up the Tomar 840 and it is a Semaphore but you refer to them as 3 light signals????
links to pages describing the hardware (e.g. Tomar 840) would help
Sorry again. Had that number written on my pad . Correct # are
H-8571 2 Light or H-8561 3 Light
The IRDOT-1 is simply a detector. To drive signals you also need some sort of additional circuitry, including any number of commercial signal drivers that expect to see some sort of detector input (which would be provided by the IRDOT-1). Since the IRDOT-1 is a position detector and only detects when the train passes that specific spot, something likk the Logic Rail Signal Animator could be used. Or the Block Animator - this even has the sensors, you don;t need the IRDOT-1 with the Blockl Animator - and the Block Animator comes in versions for 3 light Tomar signals as well as for semaphores driven by a Tortoise.
--Randy
Modeling the Reading Railroad in the 1950's
Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.
rrinkerTo drive signals you also need some sort of additional circuitry,
if the detector provides a standard digital output (not open collector), why can't it be used to drive a Red or Green signal LED, if that's all you want?
You can do like their diagram (the one you linked) shows, but it's going to change back immediately after the train passes. ANd there's no accounting for a yellow.
Even if you don;t want a full blown prototypical signal system - that's what the Logic Rail Animators are for - they make a sort of signal system so the lights change in what appears to most people a somewhat realistic fashion even though all it's doing it sensing the train pass a point and then using timers to change them back, first yellow then green.
it depends on how simple you want to keep things and the use of the IRDOT suggests that
rrinkerbut it's going to change back immediately after the train passes.
while the IRDOT-1 doesn't have delay and is only a position detector, many block detectors do have delay
rrinkerANd there's no accounting for a yellow.
no need if you only have a two lamp signal (H-8571 2 Light ). You may want yellow in place of green to indicate the diverging route
of course, controlling an Approach signal requires interconnections between signal controllers and how many layouts are big enough to justify that.
That's where the Signal and Block animators come in - you get the approach, but it's just timed. The OP mentioned 3 light signals. That's kind of the beauty of it all, it LOOKS like a prototypical signal system, but you do a whole lot less wiring and configuration, and not logic. If you are after prototypical signals, then you wouldn;t be using these sort of things, and presumably you'd be able to spot the way its working after a brief period of watching the signals change. But for the illusion of the real thing that would fool most non-experts, and is easy to set up without learning how to interconnect different electronics (guranteed you lost the guy mentioning open collector outputs), the Animators are great. They come with wiring diagrams and even in specific versions for various types of signals - they have different boards for NJI and Tomar signals so you don't have to wonder about which wire goes where on the board because you don't know what common cathode and connon anode mean.
Ok Guys. Lets forget this one. On there web site it shows a different board. I will use these IRDOT-1 in my long tunnels for train detection. Problem solved.