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Digitrax Zephyr and PSX-AR

Posted by on Jul 8, 2015 in Tips DCC Components, Tips DCC Systems, Tony's Tips |

I would appreciate some help in setting up PSX-AR with a Digitrax Zephyr Extra DCS-51.  Here’s some of the questions.

  1. I have checked software version with LED D6 – It is version K. I understand that I should install a jumper J7-3 to J7-4 and that prevents PSX-AR from misinterpreting multiple commands Digitrax sends on startup? Does that mean that there are no “special programming instructions” for Digitrax?
  2. The manual packed with the PSX-AR is rev M 6/14 which is more recent than the version on the website rev K 6/11. However, version M talks only about 2 accessory addresses but lists 3 and version K talks about 3 accessory addresses. It seems to me that version K is probably correct and version M is wrong?
  3. Digitrax DCS-51 talks about accessory addresses 0-999 (and memorizes status between sessions only for 0-512) while PSX-AR defaults are 2042-2044 and says that setting addresses and programming CVs is “optional and not required”. Am I correct in assuming that when using Digitrax, setting new addresses is mandatory?

Thank you, Jan Carr


PSX-AR Shown

Hi Jan,

1) Yes. If the jumper is in place, the PSX automatically adjusts its default addresses to 997, 998, and 999 when you enter programming mode, and it knows to ignore the “special addresses” sent by Digitrax at power on.

2) A bit of a trick question. The PSX uses two accessory addresses (ON/OFF control, photo cell arm) while the PSX-AR uses three (ON/OFF control, photo cell arm, switch/reverse direction)

3) Not mandatory if you don’t want to use accessory control. As stated in 1), ensure that the J7-3 to J7-4 jumper is in place, move the program jumper to the program position, and turn on power. The D6 LED will flash. When it is done flashing, turn off power and move the jumper back to the normal operation position. The PSX is now set to the default addresses 997, 998, and 999 for Digitrax.

Buy PSX-AR Here
Buy Digitrax Zephyr Here