All connections of the black Z21

● 3 A
● Short circuit detection
● Track voltage can be adjusted from 12 to 24 V
● Setting via Z21 app and Z21 Maintenance Tool
● Maximum track voltage = 1 V below input voltage

2 Rails DCC

DCC Loco-Decoder

14/28/128 speed steps
F0 to F28
POM read nbsp#write

DCC Turnout- and Signal-Decoder

Configuration of sophisticated decoder
2048 DCC-turnouts

3 Rails MM

MMI and MMII Loco-Decoder

MMI: Address 1 to 80 and 14 speed steps
MMII: Addresse 1 to 255 and 28 speed steps

MM Turnout-Decoder

255 MM turnouts possible

Please note: The polarity when connecting 3-rail tracks and MM turnout decoders! Some MM turnout decoders must be connected with proper polarity in order to process the MM signal correctly

Prog Track - Programming track

CV Programming
According NMRA S-9.2.3
Reading/writing CV bit- and byte-wise
In direct mode
MM Programming
6021 programming mode
Z21 FW V1.23 or higher
Decoder Update
with Z21 Maintenance Tool

Hint: CV programming can be cancelled by shortly pessing the STOP key

LED Status

Constant blue - Normal operation

Lit in green - Programming mode

Flashing green - Decoder update

Flashing blue - STOP

Flashing red - Short circuit

Sniffer BUS

Driving and switching by using your existing legacy DCC digital command station (output voltage of 16 V or higher required).

At any time you can take over the loco with another throttle (or App) connected to the Z21.

The direction of communication is always from the legacy command station → into the Z21.

Booster BUS

10805 - Z21 light BOOSTER

10807 - Z21 dual BOOSTER

10806 - Z21 single BOOSTER

10789 - Z21-CDE Booster Adapter

10-15 Booster with CDE interface

10765 - Digital Booster

Up to 3.2 A per booster
With five and over, you need the brake generator 10779

10779 - Braking generator

LocoNet™ BUS

1. Currently supports more than 21 tested hand controllers and feedback modules of a wide range of manufacturers:

Z21 FW V1.24 or higher

LocoNet™ T (Master) 12 VDC, 500 mA

Funky

Profi-BOSS as LocoNet™ Slave

DT402

DT300

UT4

DAISY

DAISY II

Funkmaster update

IRIS + 63830 IR-Receiver

Profi-Control*

TWIN-CENTER, Intellibox 1, TWIN-CONTROL, IB-Control

LocoNet™ Slave

IB-Switch

FRED*

FREMO FRED*

TURN-CONTROL

LISSY

Automation using IR

TRAIN-NAVIGATION

Automation using IR

63100

Power supply

63400, 63410

Input/output module

Blücher GBM16XL

Occupancy detector

Blücher GBM16N

LocoNet™ Interface

Occupancy detector

Train detection using RailCom®

63320, 63340

Occupancy detector (2-rail tracks)

Following modules are not compatible with the Z21:

LocoNet™ Booster
BDL168, RX4
Occupancy detector using transponding

Following modules are not compatible with full bridge power circuits and must not be connected to Z21 or Digitrax command stations:

MARCo
63330, 63350
68720, 68730

TWIN-CENTER: Slave mode with FW V2.000 via special option 844 = 1

Intellibox 1: Slave mode with FW V2.001 via special option 844 = 2

(i. e. LocoNet™ power source = off)

Activating LocoNet™ slave mode on PROFI-BOSS:

1. C + alt
2. Change MASTER to SLAVE
3. Confirm

* Take over a loco address by using dispatch procedure in Z21 Maintenance or Z21 app

The L-BUS also permits connection via a multiZENTRALEpro to the multiMAUSpro

2. L-BUS enables the connection to multiMAUSpro via multiZENTRALEpro

Z21 FW V1.24 or higher with Z21 as LocoNet™ master

FW V1.09 (LocoNet™ slave)

Connect to EXT.

The multiZENTRALEpro is the LocoNet™ slave and is powered by ther Z21 (12 VDC).

So do not use any power supply for the multiZENTRALEpro!

Connect the tracks with the LocoNet™ master.

4. With Z21 FW V1.22 or higher, the Z21 can be configured as LocoNet™ slave by using the Z21 Maintenance Tool

Control the locos of your TWIN-CENTER/Intellibox 1 by using the Z21 app, Z21 multiMAUS etc...

This digital command station is the LocoNet™ master. In this use case, the Z21 is used as gateway between the TWIN-CENTER/Intellibox 1 and all the Z21-throttles or Z21 apps.

It is now possible to control your layout not only with the TWIN-CENTER/Intellibox 1 and its LocoNet™ throttles, but also with the Z21 app on the smartphone/tablet and Z21 multiMAUS at the same time.

In order to avoid that the Z21 and the existing LocoNet™ master both provide the supply voltage at the same time, the supply voltage must be isolated on the L-BUS-connector (pin1 and pin6) at the Z21.

In order to do so, please solely use the white "Z21 LocoNet™ Slave cable" with the spare part number 136100.

Please ask your local dealer or find it online here.

Using the wrong cable can damage the digital control unit!