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Need help understanding the AVC (Accessory Voltage Controller)

Is the AVC similar to the TPC?  The pictures on the website look similar, but the template for mounting in the manual looks like the ASC/BPC footprint with tabs on the side and a programming jumper sticking out.

 

I am in the midst of measuring the amount of load that various devices put on the serial data output, and I am expecting that the AVC has an optocoupler input like the TPC.

 

The TPC and AVC are the only Lionel devices that I think have optocoupler inputs, and the ZStuff Data Wire Driver also has an opto input.  The ASC/BPC etc. types seem to have direct high-impedance inputs that draw microamps.

 

Thanks in advance for any help.

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OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
800-980-OGRR (6477)
www.ogaugerr.com

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