





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.
MS450
(predecessor: MX645)
Sound decoders with a PluX-22 interface usually are high-volume HO decoders: Regarding the MX decoders this was the MX645P22, with the MS decoders it is the MS450P22 which is based on the same PCB and can also be orderd with wires as MS450, MS450R and MS450F. MS decoders are equipped with a fully digital sound amplifier with 3 W, and also a connector for an external stay-alive capacitor – 16 V Elkos or 15 V Supercaps (without limitation to the maximum capacity), especially important for playing back sound without interruptions.
Connection diagrams can be found in the operating instructions Instructions for all MS decoders
MS450, MS450R, MS450F | MS450P22 | |
Dimensions (mm) | 30 x 15 x 4 | 30 x 15 x 4 |
ConnectionsWires and/or standardized interfaces | 13 wires, NEM-652, NEM-651 | PluX-22 |
Total current (continuous): motor+sound+FOs(peak) | 1.2 A(2.5 A) | 1.2 A(2.5 A) |
Motor current (continuous)(peak) | 1.2 A(2.5 A) | 1.2 A(2.5 A) |
Current on Function OutputsTotal of the FOs | 0.8 A | 0.8 A |
Function Outputs incl. 2 x headlights(+ logic-level outputs) | 10 4 with wires, 6 on s.pads, (+2 logic-level) | 10 9 on plug, 1 on s.pad, (+2 logic-level) |
Servo control wires | 2alternate use of logic-level | 2alternate use of logic-level |
(complete witch 5V supply) | (NO, external 5V) | (NO, external 5V) |
SUSI - connection alternatively SUSI, I²C, sound loading | yesalternate use of logic-level on s.pads | yesalternate use of logic-level on PluX |
Switch Inputs for cam sensors, Reed switches, i.a. | 1on s.pad +2 alternate use of logic-level | 1on PluX +2 alternate use of logic-level |
Energy Storage connection | yes | yes |
15V - capacitors DIRECTLY to the decoder | with wires | on PluX |
Speaker Outputs | 1 | 1 |
dep. on dec. 8 Ω or 4 Ω (2x8 Ω in parallel) | 3 Watt / 4 Ω on wires | 3 Watt / 4 Ω on PluX |
Sound Flash | 128 Mbit | 128 Mbit |
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