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Appendix B: P5T Auxiliary Input Board
The P5 system is designed as a modular system, consisting of a base
board and expansion boards. This optional board adds 6 Trigger inputs
and a pair of motor voltage inputs to the P5 system. This is useful with
conventional remote control systems where train speed is determined by
reading motor voltage and where more than 2 trigger inputs are needed.
DCC SYSTEMS WOULD ALMOST NEVER NEED THE P5T.
Auxiliary Input Board (P5T) Checkout
If you are using the Auxiliary Input Board, you can hook a variable
voltage to Motor Inputs M1 & M2. Connecting the pins T1 through T6 to
ground (GND) will activate the associated sounds and effects.
Terminal Color Diesel Steam
Top Row
T2 Black Dynamic Brake Water Fill
T1 Violet Working Drifting
GND Blue Ground
M2 Orange Motor
M1 Gray Motor
Bottom Row
T3 White Rev Up Coal Load
T4 Yellow Bell
GND Blue Ground
T5 Red Crossing Horn/Whistle
T6 Brown Manual Horn/Whistle
August 2008
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Top Bottom
T2 T3
T1 T4
GND GND
M2 T5
M1 T6
M1 Indicator