QSI Revolution-A DCC Sound Decoder EMD 645 UP DD40AX

Improvements in Quantum Revolution as compared to the original, OEM releases by BLI, Atlas, Walthers, Proto 2000, Inter Mountain, Stewart and other sound decoders.

1. Advanced co-processor technology.
2. Low power design that allows mounting of the board anywhere in the locomotive.
3. Higher audio output for clear and loud sounds.
4. Additional flash memory provides for more sounds.
5. Higher voltage operation, 25 volts peak.
6. Better motor performance under intermittent power.
7. Super smooth low and mid speed performance under RTC.
8. Steam versions of the board support a chuff CAM.
9. Lighting: 6 light outputs, all with 256 intensity levels.
   Support for both LEDS and low voltage, low current incandescent lights, eliminating dropping resistors, High voltage bulbs not supported.
   New Lights supported: Rear Mars Light, Rear Ditch Lights, Firebox
   Light ports are user configurable.
   The lights for 2 ports are fixed: Front Headlight, Rear Headlight.
   The user can select lights for the remaining 4 ports from this list:
   
   

   Front Mars Light	Rear Number Boards
   Rear Mars Light	Front Marker Lights
   Front Left Ditch Light	Rear Marker Lights
   Front Right Ditch Light	Front Cab Light
   Rear Left Ditch Light	Rear Cab Light
   Rear Right Ditch Light	Firebox Light
   Front Number Boards

10. Complete sound file downloading supports cut & paste or editing of sound records:
    • Horn/Whistle
    • Alternate Horn/Whistle
    • Bell
    • Diesel Motor
    • Chuff
    • Dynamic Brake Fans
    • Steam Generator
    • Pump
    • Cooling Fan/Vents
11. New Odometer Functions
    • Odometer Reset
    • Service Mode Odometer Read-back
    • Ops Mode Odometer Readout
    • Reported to 0.01 SMPH.
12. User Calibration of BEMF vs Scale MPH.
13. User calibration of Chuff rate for low range speed steps and 4 more speed ranges. Virtually eliminates the need for a cam.
14. New CV56.13 Chuff Interval Trim for fine-tuning chuff rate.
15. User can specify default (reset) values for all CVs! 
    This means that all your specifically programmed CV’s will return to the values that you set and no re-programming is required in the event of a decoder reset.
16. User Configurable Squealing Brakes:
    • Specify SMPH at which Squealing Brakes are armed.
    • Specify SMPH at which Squealing Brakes are triggered.
    • Specify whether Squealing Brakes are armed if Air Brakes are applied.
17. User Configurable Grade Crossing Horn Signal: 
    Specify duration of up to four horn blasts and three periods of silence.

Quantum Revolution Specifications

Dimensions: Revolution-A, 0.99” X 2.86”, Revolution-U, 2.13” X 0.69”
Maximum Peak Voltage: 25 V
Steady State Current: 1.3 A
Stall Current: (1 sec): 2+ A
Speaker Load: 8/16 ohm or 2, 8 ohm in Parallel
Audio Amplifier: Advanced D Style Format 2 Watts
Light Outputs: 6 with 256 intensity levels ea.
Function Current: 100 mA
Downloadable Sound Files: Cut/Paste and Edit Sound Files

DECODER FEATURES

Compatible with the NMRA DCC Standards and RPs
Supports 2 and 4 Digit Addressing Programmable acceleration, deceleration, starting voltage 
Speed calibration, 1 Scale MPH 
Supports programming on the main with Stat Chat, audible feed back 
Supports read-back on Programming Track 
Optional Magnetic Reset to Defaults 
Analog Control using the Quantum Engineer 
I/O: Revolution-U: 9 pin and 8 Pin JST for additional function outputs 
Co-Processor Technology

THROTTLE FEATURES

Supports 14, 28, and 128 speed step modes
Speed interpolation provides super smooth 128 speed step response
Programmable acceleration, deceleration, starting voltage
7 bit consist addressing (CV-19)
High Frequency Silent Motor Drive
BEMF/Load Compensation
RTC Regulated Throttle Control, self adjusts locomotives in a consist - an exclusive Quantum feature!

SOUND FEATURES

8 Sound Channels
High quality 16 bit digital sound
Individual, adjustable volume controls
1-2 Watt audio amplifier
Polyphonic Sound Processor
Doppler Effect
Break Squeal
Air Brakes
Stat Chat, Verbal Audible response to programming commands
Steam Cocks
Cam Input
Sound of Power by Load Conditions
Sound of Power By Function Command
Improved Nothing and Transitions
Improved Chuff See Above