1551 TCS Train Control Systems / IMF4-NF (SCALE=N) Part # 745-1551

The 1551 TCS IMF4 - NF is a top - notch N - scale drop - in DCC decoder tailored for InterMountain F - unit locomotives like F3A/B, F7A/B, and F9B. It features a soldered - wire motor mount. With dimensions of 0.47” X 0.179” X 2.158” (11.93mm X 4.54mm X 54.81mm), it offers 1.0/2.0 Amp continuous/peak power and has 3 total functions with an 80 mA function rating. There are 4 12V outputs and 4 LED outputs. This decoder comes with amazing features. Back EMF Load Compensation ensures great slow - speed control and high - performance under load. Quiet Drive gives a super - quiet motor operation. It can automatically detect DC power and allows DC lighting effect configuration. RailCom enables communication with the command station and supports new feature expansion. Variable Momentum lets you create custom acceleration and deceleration curves. It supports LED and incandescent bulbs without external resistors, has function remapping, 20 programmable lighting effects, dimmable brightness, a decoder lock, Airwire compatibility, and user - loadable speed tables. Check the installation pages for a full list of compatible engines. Note that this version is for the newer InterMountain frame with wire - connected motors.

Using the 1551 TCS IMF4 - NF decoder is easy. First, make sure your locomotive is from the compatible InterMountain F - unit models like F3A/B, F7A/B, or F9B. Check if it has the newer frame where the motor is connected to the control board via wires. Install the decoder according to the installation pages provided. When using it, you can take advantage of the various features. For example, to set custom acceleration and deceleration, use the variable momentum feature. If you want to control the lighting effects, you can remap the functions or choose from the 20 programmable lighting effects. You can also adjust the brightness of your lights. When it comes to maintenance, keep the decoder clean and dry. Avoid exposing it to extreme temperatures or moisture. If you need to program the decoder, make sure to deactivate the decoder lock first. Also, follow the instructions carefully when using DC power and configuring the lighting effects in DC mode. Have fun operating your locomotive with this great decoder!