Colour Light Signals on MTS Layout

[Gorsebank]

Hi

I am using LGB 55025 MTS Switch Decoder, Four Channel to switch the points on a new layout under construction on the Isle of Man.
I understand that I can change the CV values in the decoder to provide a on off output, what I cannot find is what is the voltage and is it AC or DC when set to this mode.
I want to use some of the outputs to operate colour light signals via a small relay I am aware that the maximumoutput per channel is 1500mA with the total output from the 55025 being limited to 3000mA but cannot find voltage information anywere. Can anyone help.
I could do this using point motors fitted with supplimentry switches but since I will be putting in 10 signals this gets expensive.

Regards
Ian

 

[ntpntpntp]

Don't have one of these decoders but I would assume the output voltage would be the supply voltage to the decoder minus a volt or two for internal component drop. It's designed to operate LGB point motors which are reversable DC ,so I'd expect DC (or at least half-rectified AC) output.
Stick a meter on the output!

[edit] The manual for the 55025 says that when it's set to output a flashing light effect this works by alternating positive/negative output, so this confirms it must be a DC output I reckon.[/edit]

 

[Gizzy]

Have a look here on P 16;

http://www.champex-linden.de/lgb_pr...531A782887EBA8525693100642B0F/$FILE/55025.PDF

It says you need a supply of 14-24 V, so assuming you have an MTS Central Station, I guess it will be an 18 V DC output.

Easy enough to measure if you have access to a Digital Multimeter....

 

[Gorsebank]

Thank you for your suggestions.
Last night I put a 22K ohm resistor across one of the outputs in order to load it.
The output is 22.6 v D.C. should anyone else need to know.
I then put a 24v D.C. relay across the output which pulled in without a problem and
drew a current of 35mA well within the limit of the output.
Problem solved.

 

[Gizzy]

Ian,

I'd be interested in seeing what you are doing here, so could you post more details when you install your signals please....

 

[Gorsebank]

Not a problem Gizzy, although it may not be until spring that they are fully installed
I will be experimenting over the winter period and let you see what I come up with.

Regards

Ian