DCC in Z scale

Special Considerations in Z Scale

Voltage is the prime concern, you need to keep the voltage down to avoid melting motors and sometimes lamps. If your supply cannot be turned down enough, make one or more full wave bridges using "fast recovery" diodes and put in series with the power to the track. The fast diodes will keep from messing up the DCC signal (rounding off the "corners").

Here's an exampleFR601DICT-ND from Digikey

Some Z is fine on 8 volts, some 10. Many systems will only go down to 12v. Remember that the voltage to the motor is NOT the same as the track voltage, but usually a couple of volts lower. My PowerCab puts just about 13v DCC to the rails, so I have standardized on that voltage. This should supply 10-11 volts to the motor after the decoder "drop".

What's available in decoders:

CT Electronik

  • DCX76zD - 6.9 x 6.1 x 1.7 mm - 4 function - SMALLEST DECODER MADE
  • DCX75 - 11 x 7.2 x 1.4 - 6 wire -
  • DCX75/N - 6 pin NEM 651 interface
  • DCX74D - 13 x 9 x 1.5 mm - 7 wire version - 2 function outputs
  • DCX74DV - 13 x 9 x 1.5 - 9 wire"full"version - 4 function outputs
  • GE70 - 24 x 9 x 3.5 mm- sound and xx function decoder 
  • SL75 - 24 x 9 x 3.5 mm - sound, motor and xx function

Digitrax

OK, low cost, not the smallest, no small 4 function decoders

  • DZ123 - 13.97 x 9.144mm x 3.302mm - 2 function
  • DZ123M0 - drop in for MicroTrains GP-35, GP-9
  • DZ123Z0 Board Replacement Decoder for American Z Line (AZL) GP-30 Diesels and others.
  • DZ123MK0 Board Replacement Decoder for Marklin Mini Club 88455 and others.
  • DZ123MK1 Board Replacement Decoder for Marklin Z 88584 and others.
  • DZ125 - 10.62 x 8.64 x 2.84mm - RETIRED
  • DZ126T - 14 x 7.13 x 3.25 mm - 2 function
  • DZ143 - 9.1 x 14 x 3mm - 4 function, RETIRED
  • DZ146 - 14 x 10.23 x 3.77mm - 4 function

ESU

  • Loksound Micro v4.0 - 25mm x 10.6mm x 3.8mm - sound, motor, 4 functions
  • Loksound Select Micro - 25mm x 10.6mm x 3.8mm - sound, limited sounds
  • Lokpilot micro v4.0 - 10.5 x 8.1 x 2.8mm - motor and 4 function
  • LokPilot Fx - 13.5 x 9.0 x 3.5mm -function only - 6 functions

Lenz

  • Gold Mini "Plus" - 11 x 9 x 2.6

NCE - (North Coast Engineering)

  • Z14SR - 14.2 x 8.6 x 3.2 mm -

Soundtraxx

  • Micro Tsunami 25.4 x 12.7 x 5.6 mm

TCS (Train Control Systems)

  • Z2 - 12.95 x 6.65 x 2.79 mm - 1 amp cont / 2 amp peak / 2 function 60 ma total / wired
  • MZA4 - 1 amp cont / 2 amp peak / 4 function 80 ma total / drop in for MT GP9, GP35, SD40

Uhlenbrock

  • 73400 - 10.8 x 7.5 x 2.4 - has SUSI interface

Zimo

  • MX621 - 12 x 8.5 x 2.2 - motor and function - 4 function outputs, .7 amp continuous - SECOND SMALLEST DECODER MADE
  • MX618 - 15 x 9.5 x 2.8 - 4 function
  • MX646 - 28 x 10.5 x 4 - motor, function and sound - 4 function outputs - servo control,  1 amp continuous
  • MX642 - 30 x 15 x 4.5 - motor, function and sound - RETIRED?
  • MX646 - 28 x 10.5 x 4 - RETIRED
  • MX648 - 20 x 11 x 4 - motor, 6 function, sound, - 
  • MX649 - 23 x 9 x 4 - 6 functions, or 4 functions and 2 servo - SMALLEST SOUND DECODER MADE
  • MX658 - 25 x 10,5 x 4 - motor, 4 function, sound, susi, servos

 

Ngineering

  • N8031B - not really a decoder, but super mars light simulator, uses 3 LEDs, up to 18v supply.   7.9 x 7.9 x 3 mm

 

DCC Manufacturer ID table:

 

1: CML Electronics Limited

2: Train Technology

11: NCE Corporation

12: Wangrow

13: Public Domain & Do-It-Yourself Decoders

14: PSI - Dynatrol

15: Ramfixx Technologies (Wangrow)

17: Advanced IC Engineering, Inc.

18: JMRI

19: AMW

20: T4T - Technology for Trains GmbH

21: Kreischer Datentechnik

22: KAM Industries

23: S Helper Service

24: MoBaTron.de

25: Team Digital, LLC

26: MBTronik - PiN GITmBH

27: MTH Electric Trains, Inc.

28: Heljan A/S

29: Mistral Train Models

30: Digsight

31: Brelec

32: Regal Way Co. Ltd

33: Praecipuus

34: Aristo-Craft

35: Elektronik & Modell Produktion

36: DCCConcepts

37: NAC Services, Inc.

38: Broadway Limited Imports, LLC

39: Educational Computer, Inc (DCCdevices.com)

40: KATO Precision Models

41: Passmann Modellbahnzubehoer

42: Digirails

43: Ngineering

44: SPROG-DCC

45: ANE Model Co., LTD.

46: GFB Designs

47: Capecom

48: Hornby Hobbies Ltd.

49: Joka Electronic

50: N & Q Electronics

51: DCC Supplies, Ltd

52: Krois-Modell

53: Rautenhaus Digital

54: TCH Technology

55: QElectronics GmbH

56: LDH

57: Rampino Elektronik

58: KRES GmbH

59: Tam Valley Depot

60: Bluecher-Elektronik

61: TrainModules

62: Tams Elektronik GmbH

63: Noarail

64: Digital Bahn

65: Gaugemaster

66: Railnet Solutions, LLC

67: Heller Modenlbahn

68: MAWE Elektronik

69: E-Modell

70: Rocrail

71: New York Byano Limited

72: MTB Model

73: The Electric Railroad Company

74: PpP Digital

75: DigiTools Electronics Servicing and Contractor Ltd.

76: Auvidel

77: LS Models Sprl

78: Tehnologistic (train-O-matic) ROM
79: Hattons Model Railways UK
80: Spectrum Engineering US
81: GooVerModels BEL
82: HAG Modelleisenbahn CHE
83: JSS-Elektronic DE
84: Railflyer Model Prototypes, Inc.  C

85: Uhlenbrock Elektronik GmbH

86: Wekomm Engineering, GmbH

87: RR-CirKits

88: HONS Model 1011000 0x58 88 HKG
89: Pojezdy.EU 1011001 0x59 89 CZE
90: Shourt Line 1011010 0x5A 90 US
91: Railstars Limited 1011011 0x5B 91 US
92: Tawcrafts 1011100 0x5C 92 UK
93: Kevtronics cc 1011101 0x5D 93 ZAF
94: Electroniscript, Inc. 1011110 0x5E 94 US

95: Sanda Kan Industrial (1981) Ltd.

96: PRICOM Design

97: Doehler & Haas

98: Harman DCC

99: Lenz Elektronik GmbH

100: Trenes Digitales

101: Bachmann Trains

102: Integrated Signal Systems

103: Nagasue System Design Office

104: TrainTech

105: Computer Dialysis France

106: Opherline1 1101010 0x6A 106 FR
107: Phoenix Sound Systems, Inc.

109: Viessmann Modellspielwaren GmbH

110: AXJ Electronics

111: Haber & Koenig Electronics GmbH

112: LSdigital

113: QS Industries

114: Benezan Electronics

115: Dietz Modellbahntechnik

116: MyLocoSound

117: cT Elektronik

118: MÜT GmbH

119: W. S. Ataras Engineering

120: csikos-muhely

123: Massoth Elektronik, GmbH

125: ProfiLok Modellbahntechnik GmbH

127: Atlas Model Railroad Co., Inc.

129: Digitrax

131: Trix Modelleisenbahn

132: ZTC Controls Ltd.

133: Intelligent Command Control

135: CVP Products

139: RealRail Effects

141: Throttle-Up (Soundtraxx)

143: Model Rectifier Corp.

145: Zimo Elektronik

147: Umelec Ing. Buero

149: Rock Junction Controls

151: Electronic Solutions Ulm GmbH & Co KG

153: Train Control Systems

155: Gebr. Fleischmann GmbH & Co.

157: Kuehn Ing.

159: LGB (Ernst Paul Lehmann Patentwerk)

161: Modelleisenbahn GmbH (formerly Roco)

163: WP Railshops

165: Model Electronic Railway Group

170: AuroTrains

173: Arnold - Rivarossi

186: brAWA Modellspielwaren GmbH & Co.

204: Con-Com GmBHs

225: Elproma Electrounics Poland

238: NMRA reserved

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