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ZIMO Decoder Interface Nomenclature

Last Updated 240602

The NMRA has developed Recommended Practice 9.1.1 - DCC Electrical Interface & Wire Color Code that is used by ZIMO to insure consistent application of the many decoder electrical interface connector types in use today.

ZIMO employs a standard nomenclature for naming products that indicates the type of connector used.

MS _  _  _  [  ] - [Decoder Series: MN, MS, MX...] - [Decoder Family: 440, 450, 500...] - [Interface: C, F, R...]

The suffix applied to the Series+Family name indicates the interface connector type. 

 [blank] - Hardwire - 7, 9, 11 (depending on decoder type) single wires with free ends (120 mm long). 

 

161-hardwire.gif 

[R] - NEM652 NMRA 8-pin - 8 pin plug to NEM652 standard (i.e. "medium interface" as specified in NMRA 9.1.1) on 70 mm long wires.

 

 140-nem652.gif

[F] - NEM651 NMRA 6-pin with harness - 6-pin plug to NEM651 standard (i.e. "small interface" as specified in NMRA 9.1.1) on 70 mm long wires.

 

 121-nem651.gif

[N/L] - NEM651 Direct NMRA 6-pin without harness - 6-pin direct plug to NEM651 standard (i.e.  "small interface" as specified in  NMRA) directly on decoder.

 

 142-nem651-direct.gif

[P8/12/16/22] - NEM658 PLuX - "PluX" (pictured is the 16-pin example in the upcoming standard for vehicle to decoder connector in the DCC world, also in the NMRA DCC RP 9.1.1.

 

 130-nem658.gif

[C/D] - NEM660 21MTC - The 21-pin interface, "MTC", direct on decoder follows NMRA DCC RP 9.1.1, based on 22-pin plug and socket connections (one anti rotation pin as index).

 

 148-nem660.gif

[N18] - NEM662 Next18 - 18-pin interface to NEM 662 standard based on 18-pin plug and socket connections (one anti rotation pin as index) directly on decoder.

 

 118-nem662.gif

[E24] - RCD124 E24 - 24-pin interface to RCD-124 standard based on 24-pin plug and socket connections (one anti rotation pin as index) directly on decoder.

 

 e24.jpg