EmpirBus NXT DCM User manual

!
EmpirBus!NXT!DCM!
User!manual!
!

1/15 EmpirBus NXT DCM User manual Ver 1.53
1. Introduction .................................................................................................................................... 2
2. Safety guidelines and measures ...................................................................................................... 2
3. Scope of Delivery ............................................................................................................................. 2
4. Model Range ................................................................................................................................... 2
5. Installation ...................................................................................................................................... 2
5.1 Mounting ....................................................................................................................................... 2
5.2 Connectors .................................................................................................................................... 3
5.3 Power feed .................................................................................................................................... 3
6. Circuits ............................................................................................................................................ 4
6.1 Inputs ............................................................................................................................................ 4
6.1.1 Digital input – negative .......................................................................................................... 4
6.1.2 Digital input – positive ........................................................................................................... 5
6.1.3 Digital input – commonline .................................................................................................... 5
6.1.4 Analog input – resistance ....................................................................................................... 5
6.1.5 Analog input – voltage ........................................................................................................... 6
6.1.6 Analog input – multi switch .................................................................................................... 6
6.2 Outputs ......................................................................................................................................... 6
6.2.1 Digital output – positive ......................................................................................................... 6
6.2.2 Digital output – half bridge .................................................................................................... 7
6.2.3 Digital output – Window wiper .............................................................................................. 7
7. Configuration .................................................................................................................................. 8
7.1 Bus ID ............................................................................................................................................ 8
7.2 Fuse reset ...................................................................................................................................... 8
7.3 Manual channel override .............................................................................................................. 8
7.3.1 Manual override switch off .................................................................................................... 8
7.3.2 Manual override switch on .................................................................................................... 9
7.3.3 Resetting a channel ................................................................................................................ 9
7.4 Wireless transmitter pairing ......................................................................................................... 9
8. Product specifications ................................................................................................................... 10
!

EmpirBus NXT DCM User manual Ver 1.53 2/15
1. Introduction!
The DCM is a product from the EmpirBus NXT product family.
This document contains basic specifications, installation instructions, manual channel override and
fuse reset instructions. This and other documents are available at www.empirbus.com.
2. Safety!guidelines!and!measures!
In order to avoid accidental short circuits, make sure to disconnect the power supply to the DCM
before making any connections.
Never use this product where there is a danger of dust or gas explosion or other potentially
flammable products.
3. Scope!of!Delivery!
If the DCM is equipped with an integrated wireless receiver, a stub antenna is included in the box.
4. Model!Range!and!options!
Both the unit and the box are marked with model number and option specification. Each unit has a
total of 16 configurable channels. For channel specification, see table 9.1: Model range
The options are specified by the last four digits in the article number.
E.g. A 2010103-1100 can control up to 8 analog inputs and 8 PWM outputs.
5. Installation!
5.1!Mounting!
The DCM should be mounted on a flat vertical surface with four screws (not included), with the
orientation as shown in figure 5.1.
Figure 4.1: Options

3/15 EmpirBus NXT DCM User manual Ver 1.53
5.2!Connectors!
The bus connector is an NMEA2000 compatible male Micro-C 5 pin connector. It is not recommended
to connect a T-connector directly to the unit; a drop cable should be between the main bus and the
unit.
The consumers and inputs are connected via Molex MX150L connectors. Only use correct crimp and
extractor tools when assembling the connector. Unused pins in the connector should be plugged
with circuit plugs in order to maintain IP65.
5.3!Power!feed!
The power is supplied on the two M6 bolts with positive on the left (marked with +) and negative on
the right (marked with -). The total max output of a DCM is 100A.
!
59
27
229
190
8,5
4,5
162
41
[mm] (Drawing is not to scale.)
Figure 5.1: Dimensions

EmpirBus NXT DCM User manual Ver 1.53 4/15
6. Circuits!
The usage of a channel is determined by the model, option configuration and programming. The
channels are numbered directly on the unit (1 through 16). The channels (inputs/outputs) are on the
upper row of pins and the lower row is minus. See figure 6.1. The Molex MX150L connectors
connector accepts cable dimensions up to 2,5 mm2.
6.1!Inputs!
Any channel on a DCM can be configured as digital or analog input. If options support analog inputs
or
6.1.1!Digital!input!–!negative!
Connect the switch directly between minus and the desired channel.
!
Figure 6.1: DCM pinout

5/15 EmpirBus NXT DCM User manual Ver 1.53
6.1.2!Digital!input!–!positive!!
Connect the switch directly between the source (V+) and the desired channel. NOTE: The input and
the DCM must have the same power supply.
6.1.3!Digital!input!–!commonline!
It is possible to have a switch and a LED indicator on the same channel using the circuit below. The
commonline channel needs to be connected to a channel that can switch to minus, which is possible
on channel 6 or 14 on all DCM models.
The value of the resistor R can be calculated using:
R = (Voltage supply – LED forward voltage) / 0.020A
LED forward voltage (Vf) = nominal 1,7 – 2,2 V
Example 12V system:
14.5V – 1.7V = 12,8V
12.8 / 0,020 = 640Ω minimum
(680Ω or higher recommended)
Example 24V system:
29V – 1.7V = 27,3V
27.3V / ,.020 = 1365Ω minimum
(1500Ω or higher recommended)
6.1.4!Analog!input!–!resistance!
Connect the resistive sensor directly between minus and the desired channel.
!

EmpirBus NXT DCM User manual Ver 1.53 6/15
6.1.5!Analog!input!–!voltage!
Connect the voltage source directly to the desired channel. See data sheet for measuring range.
NOTE: The input signal source and the DCM must have common ground.
If input signal source is powered by another power supply, a resistor must be connected in series to
the input. A 10kΩ resistor is recommended for this purpose. The programming must take this in
consideration. NOTE: The power supply for the input signal source and the DCM must have
common ground. (I.e. Both batteries must have common ground.)
Input value x (15kΩ / (15kΩ + R) = measured value
Example 12V system:
12V x (15kΩ / (15kΩ + 10kΩ) = 7,2V
Example 24V system:
24V x (15kΩ / (15kΩ + 10kΩ) = 14,4V
!
6.1.6!Analog!input!–!multi!switch!
The circuit below enables four separate momentary switches to be connected to a single input
channel. Note: Multi switch channel setting is only possible for momentary switches. Only one
button can be pressed at a time.
6.2!Outputs!
Depending on the model, certain channels can be configured to be outputs. See the table 9.1 for
model specification.
6.2.1!Digital!output!–!positive!
Connect the load directly between the desired channel and minus.

7/15 EmpirBus NXT DCM User manual Ver 1.53
6.2.2!Digital!output!–!half!bridge!
For actuators and other equipment that use shifting polarity, connect the equipment directly
between two channels with minus output capability.
!
6.2.3!Digital!output!–!Window!wiper!
See table 9.1 for models with window wiper capability. Depending of the electrical design of the
window wiper, two different circuits are possible. Most common is window wiper circuit 1. See figure
6.2.
Any channel can be used for Ch X and Ch Y. Channel 4, 5, 12 or 13 is used as high speed channel.
Note: The diode is never connected to channel 4, 5, 12 or 13.
Less common is window wiper circuit 2. See figure 6.3.
Any channel can be used for Ch X and Ch Y. Channel 4, 5, 12 or 13 is used as low speed channel.
Note: The diode is never connected to channel 4, 5, 12 or 13.
!
Figure 6.2: Window wiper circuit 1
Figure 6.3: Window wiper circuit 2

EmpirBus NXT DCM User manual Ver 1.53 8/15
7. Configuration!
The settings covered by this chapter are settings that can be set directly on the unit. Some of these
settings can also be set from the EmpirBus Studio PC software, and some settings needs to be set
both in the PC software and on the unit. For further information, see the EmpirBus Studio
documentation.
7.1!Bus!ID!
All EmpirBus NXT units needs to have a unique bus ID. On the DCM the bus ID can be read from the
display on the upper left corner. Factory preset is bus ID 0 (000).
To change bus ID on a DC module:
1. Press and hold RESET/AUTO for 10 seconds until the display shows “bAS”
2. Press MAN ON/MAN OFF three times. Display now alternates between the current bus ID
and “bAS”.
3. Use the arrow buttons to set the desired bus ID.
4. Press and hold RESET/AUTO for 10 seconds until the DC module restarts.
7.2!Fuse!reset!
A channel with tripped fuse is in normal running mode indicated by a red continuous channel
indicator. To reset the channel to normal operation:
1. Press the right arrow button. ”SEL” will be shown in the display.
2. Use the right arrow button to step to the desired channel.
3. Press and hold RESET/AUTO for two seconds. The fuse is now reset.
4. Press the left arrow until the message “SEL” in the display disappears.
Please note that if the problem that caused the fuse to trip still remains, the fuse will trip again.
7.3!Manual!channel!override!
In case of bus failure there is failsafe functionality that allows channels to be manually switched on or
off. For automatic bus failure backup settings, see the Enhanced Limp Home documentation.
A manually switched off channel is in normal running mode indicated by a flashing red channel
indicator.
A manually switched on channel is in normal running mode indicated by a flashing green channel
indicator.
7.3.1!Manual!override!switch!off!
1. Press the right arrow button. ”SEL” will be shown in the display.
2. Use the right arrow button to step to the desired channel.
3. Press and hold MAN ON/MAN OFF for three seconds
4. Press the left arrow until the message “SEL” in the display disappears.
5. Outputs manually switched off are now indicated with flashing red indication.
!

9/15 EmpirBus NXT DCM User manual Ver 1.53
7.3.2!Manual!override!switch!on!
1. Press the right arrow button. ”SEL” will be shown in the display.
2. Use the right arrow button to step to the desired channel.
3. Press and hold MAN ON/MAN OFF for three seconds
4. If the channel indicator still is flashing red, again press and hold MAN ON/MAN OFF for three
seconds
5. Press the left arrow until the message “SEL” in the display disappears.
6. Outputs manually switched off are now indicated with flashing green indication.
7.3.3!Resetting!a!channel!
1. Press the right arrow button. ”SEL” will be shown in the display.
2. Use the right arrow button to step to the desired channel.
3. Press and hold RESET/AUTO for two seconds. The channel is now reset.
4. Press the left arrow until the message “SEL” in the display disappears.
7.4!Wireless!transmitter!pairing!
If the DCM is equipped with a wireless receiver, the transmitters (switches/remotes/detectors etc.)
need to be paired with the unit in order to operate. Each transmitter needs to be paired to a unique
function number.
1. Press and hold MAN ON/MAN OFF for 10 seconds until the display shows “P00”.
2. Use right arrow button to step to “P10” for wireless receiver programming.
3. Press MAN ON/MAN OFF Once. Display shows “OAS” / “001” blinking. Wireless channel 1 is
selected.
4. Use right arrow button to choose channel (if other than 1).
5. Press MAN ON/MAN OFF to enter learning mode. Display flashes “LEA”.
6. Press the wireless switch (or trigger the detector) that is to be connected.
7. When button has been pressed the display alternates between “LEA” and “ACC” for five
seconds to indicate that the transmitter was learned and accepted.
8. The DCM auto detects the type of transmission from the transmitter and suggests a setting:
“FU1” or “FU2”. (FU1 = transmitter sends “pressed” and “released”, FU2 = transmitter sends
only “pressed”.)
Press MAN ON/MAN OFF to accept the setting and continue. If additional transmitters need
to be paired, repeat from step 3.
9. Press RESET/AUTO to exit programming mode and return to normal mode.
How to delete a paired wireless channel:
• Enter the programming mode P10 as mentioned above from point 1 to 3.
• Use right arrow key to select the channel you want to erase (1 to 30 ).
• Press MAN ON/MAN OFF once to enter learning mode.
• Press and hold in MAN ON/MAN OFF (the text “ddd” will appear on the display) until is
shows “del” then release the button.
• Press MAN ON/MAN OFF once, the text “dcd” on the display then confirm that the channel is
erased.

EmpirBus NXT DCM User manual Ver 1.53 10/15
8. Product!specifications!
See table 4.1 for model specification and hardware support
Output
Fuse setting
Output minus (-)
Output minus (-)
1, 5, 8, 10, 15, 18 A (15 and 18A not available on all models)
2 channels 0,1A minus
4 channels 0,5A minus, 3A max 20 sec (not available on all
models)
Digital input
12V power peak/average:
24V power peak/average:
Over current protection limit for LED
170mA / 1mA (closed), <0,1mA (open)
340mA / 2mA (closed), <0,1mA (open)
20mA
Analog input
Volt
Current
Resistance
0–32V +/-1%
4–20mA +/-1% (not available on all models)
0–1500 ohm +/-5%
Communication
CAN-bus
Wireless receiver
NMEA 2000
EnOcean
Power supply
Maximum current
Supply voltage
100A
9-32VDC
Connectors
NMEA 2000
Channels
Power supply
Antenna
Micro 5pin M12 Male
Molex MX150L 16 circuits
M6 bolt
SMA female
Environment
Ambient temperature
Enclosure!
-20 to +55 degrees Celsius
Ingress Protection IP65, Polycarbonate1
Physical data
Size
Weight!
229 x 104 x 41 mm
0,4 kg!
1 Exposure to solvents and/or water above 60°C may cause cracking on polycarbonate.

11/15 EmpirBus NXT DCM User manual Ver 1.53
9. Appedix!A!–!Model!range!
Table 9.1: Model range. All units are produced with a setup of options. (See description in figure 4.1.). Any DCM can be delivered with a wireless receiver. Models with 0.5A minus outputs have window wiper capability.

EmpirBus NXT DCM User manual Ver 1.53 12/15
Notes:!
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________

13/15 EmpirBus NXT DCM User manual Ver 1.53
!
!
DECLARATION!OF!CONFORMITY!
We, manufacturer, Garmin Sweden Technologies AB, Uddevalla, Sweden, declare that the articles:
2010101, 2010102, 2010103, 2010104, 2010105, 2010403, 2010505, 2020106, 2020107, 2020108,
2020109, 2020110, 2020408, 2020510, 2061001,
are in conformity with EC Directive EMC 2014/30/EU,
2020108W are in conformity with EC Directive RED 2014/53/EU.
We also declare that the articles:
2010101, 2010102, 2010103, 2010104, 2010105, 2010403, 2010505, 2020106, 2020107, 2020108,
2020109, 2020110, 2020408, 2020510, 2061001,
comply with
FCC 47 CFR Part 15, Subpart B, Class A.
SIGNS ON BEHALF OF Garmin Sweden Technologies AB
Name: Henrik Niklasson
Position: Product & Sales Manager
Location and date: Uddevalla, Sweden, 1st December 2017
Signature: ____________________________________

EmpirBus NXT DCM User manual Ver 1.53 14/15
!
!
RoHS!CERTIFICATE!OF!CONFORMANCE!
We, manufacturer, Garmin Sweden Technologies AB, Uddevalla, Sweden, declare that the articles:
2010101, 2010102, 2010103, 2010104, 2010105, 2010403, 2010505, 2020106, 2020107, 2020108,
2020109, 2020110, 2020408, 2020510, 2061001,
are in compliance with Directive 2011/65/EU on the restriction of the use of certain hazardous
substances in mechanics, electrical and electronic equipment (RoHS Directives).
SIGNS ON BEHALF OF Garmin Sweden Technologies AB
Name: Henrik Niklasson
Position: Product & Sales Manager
Location and date: Uddevalla, Sweden, 1st December 2017
Signature: ______________________________

15/15 EmpirBus NXT DCM User manual Ver 1.53
Garmin Sweden Technologies AB
Spikvägen 1
SE-451 75 Uddevalla
Sweden
Support
Phone: [phone]
E-mail: [e-mail]
Web: www.empirbus.com