This decoder is a M4 decoder with built in Keep-Alive™, and will keep your locomotive operating for 6-15 seconds without power (As a result of dirty track, poor contacts, etc.). This decoder is physically larger than a M-series decoder, but features the same operational characteristics. The KAM4P-MH includes a medium-length (3.5 inch) harness with 8-pin NMRA plug at the end.

• Keep-Alive®: Included on-board for smooth, stutter-free operation.
• Back EMF Load Compensation: Provides superior slow speed control and high performance under load.
• Quiet Drive: Super-quiet motor control for "buzz" free motor performance.
• DC Mode: Decoder will automatically detect DC power. You can also configure how your lighting effects function on DC.
• Incandescent Bulb Support: This decoder can be used with 12 Volt bulbs.
• Function Remapping: Buttons 0 through 12 may be used to control the lighting functions of this decoder.
• Programmable Lighting Effects: Choose from 20 separate user-programmable lighting effects!
• Dimmable Brightness: Configure multiple different brightness levels for your LED's or incandescent bulbs.
• Decoder Lock: Feature which prevents accidental/unwanted programming while activated.
• Airwire™ Compatible: Fully compatible with Airwire™ operation.
• User-Loadable Speed Tables:Configure custom speed curves and set speed limits.

Specs:

• Interface Type Direct-Plug (8-Pin NMRA)
• Dimensions (L x W x H): 0.945" x 0.657" x 0.33" or 24mm x 16.7mm x 8.38mm
• Scale: HO Scale
• Continuous/Peak: 1.0/2.0 Amp
• Total Functions: 4
• Function Rating: 200 mA
• 12V Outputs: 4