There was a thread on the MRH website about working with
two decoders in one loco. How to set them up and program
them. That prompted me to deal with the topic here.
Recently the concept of decoder locking has become popular
amongst decoder manufacturers. This involves setting CV 15
and CV 16. If CV 16 = 0, locking is disabled. If CV 16 is set to
a value between 1 and 7, then the decoder can only be pro-
grammed when CV15 is set to the same value. When locked,
the decoder will only allow you to change CV15 or CV16.
There are some recommended values for CV16, depending
upon what the specific decoder is doing. Check out the NMRA
site for these ideas:
.
But what do you do if you have an older decoder without the
lock feature? Here’s what I do to keep it simple.
From Mr. DCC’s workbench
– One Loco with Two Decoders
14
14: Two decoders in loco #630: Lenz motor and light
decoder with SoundTraxx DSX sound module without the
loco feature.
