The LokSound 5 micro DCC Direct Kato USA SD90 was specially developed for installation in some Kato USA N gauge vehicles: It fits in all Kato N gauge locomotives of the SD90, SD90/43MAC or SD80MAC models instead of the standard analog board. Finally, these models can also be easily retrofitted with a LokSound decoder.

The LokSound 5 micro DCC Direct Kato USA SD90 with its dimensions of 60.5mm x 10.5mm is a pure DCC decoder.

Modes

The LokSound 5 micro DCC Direct Kato USA SD90  is a "pure-bred" DCC decoder. 14 to 128 driving steps are as self-evident as 2- and 4-digit addresses. Up to 32 functions can be triggered. Thanks to RailComPlus®, the decoders log in fully to a suitable digital center.It masters all DCC programming modes and thanks to RailCom® the CV values can be read out on the main track with suitable control panels. Auxiliary registers exist for control panels that can only program the CVs from 1-255.

The LokSound 5 micro DCC Direct Kato USA SD90 Decoder detects the Märklin® brake distances as well as ZIMO® HLU / ZACK commands or the Lenz® ABC system. Braking with DCC brake blocks or dc voltage is also possible. In addition, it also stops with a Selectrix® brake diode. An AUTOMATIC ABC commuter train allows automatic commuting between two stations.

The LokSound 5 micro DCC Direct Kato USA SD90 can be used on analog DC layouts.

The decoder switches between the operating modes fully automatically “on-the-fly”. In most cases, nothing needs to be set.

Sound

The LokSound 5 micro DCC Direct Kato USA SD90 Decoder can play up to 12 channels simultaneously.

Each channel can be resolved with up to 16 bits / 31250 kHz and offers hi-fi quality on its system. There is virtually no difference to the original audible anymore. A Class-D audio output with up to 3W output power controls the speakers, which can have between 4 ohms and 32 ohms impedance. A 128 Mbit sound memory provides enough capacity.

The volume of all individual sounds can be adjusted individually. The super-flexible sound engine without a rigid sequence plan allows the prototypically accurate simulation of all conceivable rail vehicles.

Functions

Despite its compact dimensions, the LokSound 5 micro DCC Direct Kato USA SD90 is equipped with an enormous number of function outputs. Two directly soldered SMD LEDs are provided for front and rear illumination. Alternatively, two (enclosed) conventional, wired LEDs can be soldered in and switched separately.

In addition, three further amplified function outputs and a “logic level” output are available and all important light functions are available. The brightness of each output can be adjusted separately.

Motor

The motor control of the LokSound 5 micro DCC Direct Kato USA SD90 has a variable PWM clock frequency from 10kHz to 50kHz, which ensures super-quiet operation, especially for coreless motors – the typical "hum" is a thing of the past. The load control can be adjusted to difficult cases with up to 10 CVs. The unique "Autotune" function allows the decoder to be automatically measured against the motor. The LokSound 5 micro DCC Direct Kato USA SD90 decoder delivers up to 0.75A motor power.

Operational reliability

A PowerPack can be connected to the LokSound 5 micro DCC Direct Kato USA SD90 on request to bridge dirty rail sections.

Protection

Of course, the outputs are protected against overload. We want you to enjoy your decoder for as long as possible.