ZIMO MS490

PLEASE NOTE: Due to chip shortages, MS decoders are temporarily supplied with alternative chips. As a result, ZIMO is temporarily applying a surcharge! We have partially incorporated this in the sales price.

MS490
predecessor: MX649
Miniature sound decoder with either NEM-651 interface (6-pole pin connector) or with wires as types MS490, MS490R, MS490F. “MS-Sound” with fully digital sound amplifier of 1 W. Connection for external energy storage via solder pads with an upper capacity limit of approx. 1000µF.
In order to make their small dimensions possible, however, the decoders of the MS490 family are NOT mfx-compatible.

Connection diagrams can be found in the operating instructions Instructions for all MS decoders

	MS490 MS490R, MS490F	MS490N, L
Dimensions (mm)	19 x 8,6 x 3,5	19 x 8,6 x 3,5
ConnectionsWires and/or standardized interfaces	11 wires NEM-652, NEM-651	NEM-651directly

Total current (continuous): motor+sound+FOs(peak)	0.7 A(1.5 A)	0.7 A(1.5 A)

Motor current (continuous)(peak)	0.7 A(1.5 A)	0.7 A(1.5 A)
Current on Function OutputsTotal of the FOs	0.5 A	0.5 A
Function Outputs incl. 2 x headlights (+ logic-level outputs)	4 all 4 with wires (+2 logic-level)	4 2 on plug 2 on s.pad (+2 logic-level)

Servo control wires	2 alternate use of logic-level	2 alternate use of logic-level
(complete witch 5V supply)	(NO, external 5V)	(NO, external 5V)

SUSI - connection alternatively SUSI, I²C, sound loading	yes alternate use of logic-level on s.pads	yesalternate use of logic-level on s.pads

Switch Inputs for cam sensors, Reed switches, i.a.	2 alternate use of logic-level	2 alternate use of logic-level

Energy Storage connection	yes	yes
15V - capacitors DIRECTLY to the decoder	on s.pads max ~1000 µF	on s.pads max ~1000 µF

Speaker Outputs	1	1
dep. on dec. 8 Ω or 4 Ω (2x8 Ω in parallel)	1 Watt / 8 Ω on wires	Watt / 8 Ω on wires

Sound Flash	128 Mbit	128 Mbit

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MS490 sound decoder**