Inc Sound Module Decoder - Manual

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3.10 Installing Lighting Effects

Adding lights to your locomotives can bring an added degree of realism but there are a

few things to consider.

Headlight and Rear Light Operation

Automatic headlight reversing: All Digitrax decoders are shipped with auto-

matic reversing headlight operation as the default.

Non-directional (independent) headlight operation: If you do not want auto-

matic reversing headlight operation use CV33 & CV34 to map F0Fwd and

F0Rev to operate on two different throttle function keys.

light operation: Refer to the FX

Section 9.0 which details how to program

the many different FX

effects.

Additional Lamp and Function Wiring Considerations

Lamps with current draw over 50mA: For regular 12 to 16 volt lamps that

draw more than 50mA when lit, we recommend using a 22 to 33 ohm 1/4

watt resistor in series with the lamp leads to avoid the lamp “start-up cur-

rents” overloading the outputs. These start-up currents can be up to 10 times

the normal current draw.

Loco with only one lamp: If the locomotive has only one lamp, connect the

F0Fwd (white) and F0Rev (yellow) outputs together. In this case the single

light will be on if F0, the light function, is turned ON.

Connecting additional function outputs: Connect F1-F6 to the lamps or other

items you want to control. Be sure not to exceed the total output current rat-

ing of the function outputs for the decoder you are using.

Transponder equipped decoders: All Digitrax Series 3, 4, 5, & 6 decoders

have built in resistors for transponding. Earlier versions of Digitrax decoders

may need to have a load resistor installed for transponding to work. Please

consult instructions for those specific decoders. You may see a slight glow

even when the forward light is turned off, this is normal.

3.11 Installing Power Xtenders

Digitrax Power Xtenders are available for most Series 6 decoders. They are designed to

keep locomotives running and sound from dropping out in situations where power to the

locomotive is interrupted due to dirty, dead or bad track. Hold up time varies based on

actual decoder load and track conditions.

Most Series 6 mobile decoders include either solder pads, a 2 pin socket or a sound

harness replacement for adding a PX module to the decoder. Some very small Series 6

decoders cannot accommodate power xtenders because there is no room available on the

board. No CV configuration is required to add a power xtender module and most are

plug ‘n play installs. See www.digitrax.com for more information about Digitrax Power

Xtenders

Note: Pre-series 6 decoders do not support the addition of power xtenders.