Bob,?
The DCC Specialties Jack Wabbit (JW) board has four independent stationery decoders. ?The JW is wired to the Tortoise machine to provide power to close/throw the turnout. The JW board also has connections to provide turnout feedback for the four turnouts to the Loconet.
Originally, the JW board was directly connected to the NCE track bus. ?With this configuration, the power for the Tortoises is provided by the NCE booster as well as the DCC signal to the decoders on the JW.
To reduce the load on the NCE booster, a Tam Valley accessory booster was installed. ?The Tam Valley accessory booster has its own power supply. ?The Tam Valley booster is connected to the NCE booster track bus for the DCC signal. ?The Tam Valley booster passes through the DCC signal and now provides the power for the JWs to operate the Tortoise machines.
I hope this clarifies the situation.?
Bill R
