Factory Reset; Other Technical Stuff - NCE Switch-It Quick Manual

Factory reset:

Momentarily connecting the two RST terminals will reset the decoder to the original
factory settings as indicated below
.
Factory default values for decoder
Output SWA is factory programmed to accessory address 1 (decoder addr 1, output 1)
Output SWB is factory programmed to accessory address 2 (decoder addr 1, output 2)
CV547 is set to 0 (Power up exercising of switch machine disabled)
CV548 is set to 0 (use pushbutton 1 to "toggle" output SWA, pushbutton 2 is disabled)
CV549 is set to 0 (use pushbutton 4 to "toggle" output SWB, pushbutton 3 is disabled)
CV554 is set to 0 (legacy accessory OPS programming enabled)
CV556 is set to 0 (pushbutton lockout is disabled)

Other technical stuff:

v We have successfully controlled two Tortoise switch machines with one decoder
output when used in a crossover. We can't guarantee this will work in all cases.
v The outputs of the decoder are always on to prevent the switch machine from backing
off due to the springiness of the turnout throw mechanism.
v If CV547 is programmed to 1 ("exercise" enabled) the decoder will "back off" the
switch (usually about halfway) then return the switch to its remembered position at
power up. This is to make sure the points are fully thrown (solves sticky point
problems).
v See the diagram below for turnout position indicator light wiring. LEDs are wired in
series with the switch machine to indicate which position the turnout is thrown. Most
LEDs will handle up to 25mA, the switch motor acts as the current limiting device for
the LEDs. We use red and green LEDs but any color will do. The switch machine will
run a bit slower with LEDs installed due to about a 1.5 volt loss in the LED.
Tortoise
Machine
Shown
Last revised: 15 March 2007
LEDs
RED
GREEN
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