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INSTRUCTION MANUAL

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Decoder MX620 - MX622, MX630 - MX632 Sound Decoder MX640 - MX648 Page 7<br />

Switch input 1<br />

Switch input 2<br />

Programming pads,<br />

do not touch !<br />

MX640 Top Side<br />

Function output FO4<br />

5 V, 200 mA power supply for small servos (i.e. SmartServo) MX640 Bottom Side<br />

Function output FO3<br />

FO8 FO9 (= where wires are soldered to)<br />

LED (10 mA) - or<br />

purple-purple<br />

logic level outputs<br />

Speaker - Speaker<br />

AT T ENT IO N: connect<br />

FA 5<br />

brown<br />

Function output FO2<br />

other side to Ground ! FA 6<br />

green<br />

white<br />

Function output FO1<br />

Front headlight<br />

(which is opposite to “normal” FO’s) FA 7<br />

yellow<br />

F unction outputs F O 4<br />

Rear headlight<br />

blue (+)<br />

F unction output F O 3<br />

gray<br />

Common positive<br />

orange<br />

Motor left<br />

G round<br />

black<br />

Motor right<br />

SUSI Data<br />

red<br />

Left rail<br />

SUSI Clock<br />

Right rail<br />

SUSI Positive<br />

Switch input<br />

Switch input 1<br />

Switch inpout 2<br />

Programming pads,<br />

do not touch !<br />

MX640D, C Top Side<br />

(= with 21-pin plug !)<br />

5 V, 200 mA, for small servo<br />

+ 5 V, 200 mA max.<br />

Function output FO3<br />

Function output FO2<br />

Function output FO1<br />

Common positive<br />

n.a.<br />

Motor left<br />

Motor right<br />

Ground<br />

Left rail<br />

Right rail<br />

Index pin<br />

Speaker<br />

Speaker<br />

Front headlight<br />

Rear headlight<br />

SUSI Data<br />

SUSI Clock<br />

Function output FO4<br />

n.a.<br />

n.a.<br />

Switch input 1<br />

LED (10 mA) - or<br />

logic level outputs<br />

FO5<br />

AT T ENT IO N: connect<br />

other side to Ground ! FO6<br />

(which is opposite to “normal” FO’s) FO7<br />

F unction output F O 4<br />

F unction output F O 3<br />

G round<br />

SUSI Data<br />

SUSI Clock<br />

SUSI Positive<br />

FO8 FO9<br />

MX640D, C<br />

Bottom Side<br />

ATTENTION:<br />

The decoder can be<br />

plugged in from either<br />

side, depending on the<br />

circuit board in the<br />

locomotive.

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