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Author Topic: Large Scale Peter Witt Streetcar DCC interface  (Read 16277 times)
Yardmaster
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« on: July 29, 2013, 08:59:10 PM »

A question has been raised on another online forum concerning the 21 pin interface in the new Peter Witt Streetcar. Since I do not post on other large scale forums I will post some info here and hopefully it will migrate to those sites. I asked about the interface and was told the following:

Our Just announced 1:29 Scale Peter Witt Streetcar has a standard MTC21 interface that is fully compatible with MTC21 decoders in the market. 
The streetcar has a standard 8 ohm speaker so must be used with decoders that support 8 ohm speakers.  We also include an standard 8 pin socket that includes a solder pin for a second function output.


 
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Greg Elmassian


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« Reply #1 on: July 30, 2013, 01:51:30 AM »

Thanks! I'm the question raiser  Grin
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Greg Elmassian


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« Reply #2 on: August 03, 2014, 08:58:33 PM »

Can you please give a link where this standard is?

I want the "version" of the standard that matches the Peter Witt streetcar.

Alternatively, please give the definitions of all 21 pins of the decoder, including those not connected.

Regards,

Greg Elmassian
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the Bach-man
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« Reply #3 on: August 04, 2014, 10:15:27 AM »

Dear Greg,
The Bachmann Large Scale Peter Witt uses a standard MTC21 interface per the NEM 660 standard which is the world-wide recognized source for this interface specification.
The MTC21 interface contains a very rich set of capabilities.  The Peter Witt only uses the basic features for motor, sound and functions.
Have fun,
the Bach-man
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Greg Elmassian


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« Reply #4 on: August 05, 2014, 11:47:59 PM »

Actually, the rear light should function as a brake light, so it's a little advanced as compared to the normal rear headlight function (as it should be).

The MOROP standard is a bit hard to follow, as for some reason, no "official" English translation is available, and the NMRA is really no help here, as they have had this standard "under review" since 2012.

I'm compiling the information myself, tracing out the connections.

Regards, Greg
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