Logic IO RTCU NX-200 User manual

RTCU NX-200
Advanced Automotive M2M/IoT Gateway
Technical Manual
Version 1.00

RTCU NX-200 Technical Manual V1.00
Advanced Automotive M2MI/IoT Gateway
Logic IO ApS. Ph: ([phone]
Holmboes Allé 14 Fax: [phone]
8700 Horsens Page 2 of 45 Email: [email protected]
Denmark www.logicio.com
Introduction
The RTCU NX-200 is the most advanced automotive IIoT Gateway product available on the
market today. Based on the successful hardware architecture from the RTCU NX-400, it features an
added range of sophisticated automotive features like a full-motion sensor suite, dual CAN bus
interfaces, Worldwide LTE, and a slick aluminium encapsulation with a clear reference to the
popular RTCU MX2 turbo!
The device is based on the new NX32L (NX32 for Linux) architecture, which embraces many new
technologies and at the same time maintains full backward compatibility, which ensures already
implemented and tested NX32 applications can execute without changes.
The RTCU NX-200 is designed to meet the ever-increasing challenges on security, in that it offers
full TLS on all major protocols and includes a hardened protected execution environment with
dual-boot and automatic fallback and recovery.
The RTCU NX-200 device is an automotive-grade device that is designed from the ground up for
professional M2M / IIoT applications with its strong on-board I/O capabilities and multiple
communication interfaces such as World-wide cellular LTE, WLAN, Bluetooth Classic / Low-
Energy, dual CAN bus, Ethernet, dual RS232, RS485, and 1-Wire.
The RTCU NX-200 also sports two USB host port interfaces allowing for the expansion of the
device with accessories such as RFID reader, additional Ethernet port, and additional RS232/RS485
ports
The on-board I/O system can be expanded almost indefinitely and completely transparently by
adding Modbus I/O modules.
The RTCU NX-200 is fully software and hardware compatible with the RTCU MX2 turbo.
The advanced power-management features on the RTCU NX-200 combined with the on-board
high-capacity Li-Ion battery allows the device to stay in a power-saving mode for a longer period
still being connected to the cellular network and capable of waking up on for example cellular
activity, change of digital inputs or a vibration sensor
This manual contains technical documentation on the installation and usage of the RTCU NX-200
device. For detailed information on the programming and software configuration of the product,
please refer to the RTCU IDE documentation.
For detailed information on the powerful RTCU M2M Platform, please refer to the
RTCU M2M Platform datasheet and the RTCU IDE documentation.

RTCU NX-200 Technical Manual V1.00
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Table of contents
Introduction......................................................................................................................................................2
Important Information....................................................................................................................................6
Technical Highlights .......................................................................................................................................7
Graphical overview:........................................................................................................................................9
External connections .....................................................................................................................................10
Overview ....................................................................................................................................................10
Signal Overview ........................................................................................................................................11
Power supply.............................................................................................................................................15
Digital outputs...........................................................................................................................................16
Digital Inputs / Ignition Input .................................................................................................................17
Analog Inputs ............................................................................................................................................18
Flex Inputs..................................................................................................................................................19
CAN communication port .......................................................................................................................21
RS232 port 1 ...............................................................................................................................................22
RS232 port 2 ...............................................................................................................................................22
RS485 communication ports (EIA/TIA-485-A compatible) .................................................................23
1-Wire bus ..................................................................................................................................................23
DC-Out........................................................................................................................................................24
Ethernet.......................................................................................................................................................24
USB Host interface ....................................................................................................................................24
Audio interface ..........................................................................................................................................24
3D movement sensor.....................................................................................................................................26
LED Indicators ...............................................................................................................................................27
User LED A and B .....................................................................................................................................27
System LED S1 and S2 ..............................................................................................................................28
Switches ..........................................................................................................................................................29
DIP-switch..................................................................................................................................................29
System switch (RST)..................................................................................................................................29
Internal Li-Ion battery...................................................................................................................................30
World-wide LTE Cat. 4 Cellular Engine.....................................................................................................31
WLAN and Bluetooth ...................................................................................................................................31
WLAN Technical Data..............................................................................................................................31
Bluetooth Technical Data .........................................................................................................................31
99-channels multi-GNSS receiver................................................................................................................32
Internal / External SIM-Card readers..........................................................................................................33
Antennas.........................................................................................................................................................33
Cellular antenna ........................................................................................................................................33
GNSS antenna............................................................................................................................................33
WLAN / Bluetooth Antenna ....................................................................................................................33
SD-CARD reader ...........................................................................................................................................34
Approved SD-CARDs...............................................................................................................................34
Product Identification Label with Barcode ................................................................................................35
Power consumption ......................................................................................................................................35

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Appendix A –Installing the external SIM-Card .......................................................................................37
Appendix B –Installing the internal SIM-Card.........................................................................................38
Appendix C –Installing the SD-CARD ......................................................................................................41
Appendix D - Enabling the CAN bus channel 1 write capability...........................................................41
Appendix E - Open Source Disclaimer.......................................................................................................42
RTCU NX-200 Specifications .......................................................................................................................43

RTCU NX-200 Technical Manual V1.00
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Important Information
Thank you very much for using a product from Logic IO Aps. Our products are designed for
professional use, and therefore, this manual assumes technical knowledge and practice working
with such products.
This documentation does not entail any guarantee on the part of Logic IO Aps with respect to
technical processes described in the manual or any product characteristics set out in the manual.
We do not accept any liability for any printing errors or other inaccuracies in the manual, unless it
can be proven, that we are aware of such errors or inaccuracies, or that we are unaware of these as
a result of gross negligence and Logic IO Aps has failed to eliminate these errors or inaccuracies
for this reason.
This product is a complex and sensitive electronic product. Please act carefully and ensure
that only qualified personnel will handle and use the device. In the event of damage to the device
caused by failure to observe the information in this manual and on the device, Logic IO Aps shall
not be required to honor a warranty claim even during the warranty period and shall be exempted
from the statutory accident liability obligation. Any attempts to repair or modify the product also
voids all warranty claims. Do not open the product. There are no user-serviceable parts inside.
Please contact Logic IO for any technical or commercial inquiries:
Logic IO Aps.
Holmboes Alle 14
8700 Horsens
Denmark
Phone: [phone]
Support: suppo[email protected]
URL: www.logicio.com

RTCU NX-200 Technical Manual V1.00
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Technical Highlights
Platform:
➢Based on the RTCU M2M Platform.
➢NX32L (NX32 for Linux) execution architecture.
▪RTCU IDE development tool.
▪Operates under a full and highly optimized Linux variant.
▪Open and extendable with Platform SDK.
Hardware Core:
➢Cortex-A5 32-bit ARM processor operating at 500 Mhz.
➢Hardware floating-point and DSP instructions.
➢128 MByte LP-DDR RAM.
➢512 MByte NAND Flash (file-system).
➢16 MByte NOR flash (system boot).
➢8 MB Dataflash (persistent memory/datalogger).
➢128 KB SRAM with battery back-up (unlimited endurance).
➢Real-time clock with battery back-up.
Security:
➢Embedded firewall.
➢TLS/SSL support with full certificate management.
➢TLS/SSL support for all major TCP protocols, such as SMTP, MQTT, and sockets.
➢Hardware assisted encryption/authentication: AES-128, AES-192, AES-256, DES, TripleDES, HASH,
RND and RSA signature.
Wireless Communication:
➢Worldwide LTE Cat. 4 Multi-Band Cellular Engine.
➢Dual SIM-card readers and support for eSIM.
➢Wireless LAN (Wi-Fi).
➢Classic and Low-Energy Bluetooth.
➢Multi-constellation GNSS with GPS, GLONASS, and GALILEO.
➢Optional: GNSS with Dead Reckoning.
Wired Communication:
➢100 Mbps Ethernet LAN interface.
➢2 x full CAN 2.0B controller with hardware filtering and multi-speed support.
➢1-Wire bus for accessories such as ID-button reader, temperature sensors, etc.
➢2 x USB host port for expandability.
➢2 x RS232 channels and 1 x RS485 channels.
I/O Interfaces:
➢5 x digital inputs and 4 x high-power solid-state digital outputs.
➢4 x flex inputs with dual-mode analog /digital operation.
➢2 x analog inputs with 12 bits resolution.
➢Expandable I/O with standard Modbus modules.

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User Interaction:
➢High-speed Mini-USB service-port connector.
Audio:
➢Fully digitized audio system.
➢Transfer, store, and play audio.
➢Amplified speaker output.
➢Microphone input.
➢Digitized cellular audio.
➢DTMF support for Interactive Voice Response applications.
Storage:
➢Internal flash drive with up-to 512 MByte capacity.
➢Persistent memory and circular datalogger.
➢Standard SD-CARD reader.
➢USB flash media.
Power and Battery:
➢Operating voltage from 8 to 36VDC.
➢Onboard 2.6 Ah Li-Ion battery with intelligent charging.
Encapsulation:
➢Exclusive and durable aluminum encapsulation.
Regulatory Approvals:
➢2007/46/EC UN ECE R10 Rev. 05 (E1).
➢2014/53/EU Radio Equipment Directive.
➢2011/65/EU RoHS Directive.

RTCU NX-200 Technical Manual V1.00
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Graphical overview:

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External connections
Overview
Connections to external equipment are made via the connectors that are located on the back and
front sides of the product.
The front panel is equipped with connectors commonly accessed by the user: SIM-Card, SD-Card,
DIP-Switches, audio input and output, LEDs, dual USB host ports, and USB slave service port.
The back panel holds all connectors necessary for installation: 4-pin (X1) power and ignition, 6-pin
(X4) for RS232 and CAN (channel 2), 12-pin (X2) for different communications interfaces, 16-pin
(X3) for analog and digital I/O, and 6-pin (X5) flex-inputs.
A graphical overview of the front- and back are shown below:
Front-side view
Back-side view
SIM card reader
SD card reader
DIP-Switch
1
USB Host 1
USB Host 2
MIC
SPKR
System
Switch
USB Service
A
B
S1
S2
Locking
Tab
WLAN/BT
antenna
Cell
antenna
SER2
ETH
X5: FLXIN
X1: PWR
X4: COM2
X2: COM1
X3: I/O
9
1
4
1
1
3
1
7
1
4
GNSS
antenna
Pin 1

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Signal Overview
X4: COM2
RD1
4
1
TD1
SGND
5
2
CAN2-H
X5: FLXIN
SGND
6
3
CAN2-L
AGND
3
6
AGND
FLXIN3
2
5
FLXIN4
FLXIN1
1
4
FLXIN2
X2: COM1
1-WIRE LED
7
1
1-WIRE
SGND
8
2
SGND
X3: I/O
CAN1-L
9
3
CAN1-H
AIN2
8
16
AGND
SGND
10
4
NC
AIN1
7
15
AGND
SGND
11
5
RS485+
DIN5
6
14
SGND
DC-Out
12
6
RS485-
DIN3
5
13
DIN4
SGND
4
12
SGND
DIN1/IGN
3
11
DIN2
DOUT3
2
10
DOUT4
X1: PWR
DOUT1
1
9
DOUT2
SUPPLY
3
1
SUPPLY
PGND
4
2
D1/IGN

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Connector X1: 4 pin PWR connector overview
Pin
Name
Description
1
SUPP
Power supply, positive (+) connection
2
DI1/IGN
Digital input 1 / Ignition input (Shared with X3)
3
SUPP
Power supply, positive (+) connection
4
PGND
Power Ground
Connector X2: 12 pin COM1 connector overview
Pin
Name
Description
1
1Wire
1-Wire bus
2
SGND
Signal Ground
3
CAN1-H
CAN-bus channel 1 H-signal
4
NC
Internally not connected
5
RS485+
RS485 non-inverting signal
6
RS485-
RS485 inverting signal
7
1W-LED
1-Wire ID-Button LED
8
SGND
Signal Ground
9
CAN1-L
CAN-bus channel 1 L-signal
10
SGND
Signal Ground
11
SGND
Signal Ground
12
DC-OUT
5V/500mA DC-Out for external equipment
Connector X3: 16 pin I/O connector overview
Pin
Name
Description
1
DOUT1
Digital output 1
2
DOUT3
Digital output 3
3
DIN1/IGN
Digital input 1 / Ignition input (Shared with X1)
4
SGND
Signal Ground
5
DIN3
Digital input 3
6
DIN5
Digital input 5
7
AIN1
Analog input 1
8
AIN2
Analog input 2
9
DOUT2
Digital output 2
10
DOUT4
Digital output 4
11
DIN2
Digital input 2
12
SGND
Signal Ground
13
DIN4
Digital input 4
14
SGND
Signal Ground
15
AGND
Analog Ground
16
AGND
Analog Ground

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Connector X4: 6 pins COM2 connector overview
Pin
Name
Description
1
TD
Transmit Data from serial port 1, RS232 compatible
2
CAN2-H
CAN-bus channel 2 H-signal
3
CAN2-L
CAN-bus channel 2 L-signal
4
RD
Receive Data for serial port 1, RS232 compatible
5
SGND
Signal Ground
6
SGND
Signal Ground
Connector X5: 6 pins FLXIN connector overview
Pin
Name
Description
1
FLXIN1
Flex input 1
2
FLXIN3
Flex input 3
3
AGND
Analog Ground
4
FLXIN2
Flex input 2
5
FLXIN4
Flex input 4
6
AGND
Analog Ground
Connector SER2: RJ45 connector overview, fully RS232 compatible
Pin
Name
Description
1
DSR
Data Set Ready
2
DCD
Data Carrier Detect
3
DTR
Data Terminal Ready
4
SGND
Signal Ground
5
RD
Receive Data for serial port 2
6
TD
Transmit Data from serial port 2
7
CTS
Clear To Send
8
RTS
Request To Send

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Accessories for cable assembly.
Order-code
Name
RT-O-TYCO-H4
TYCO p/n: 794617-4
Tyco, Connector house 4 pins. Bag with 10 pcs
RT-O-TYCO-H6
TYCO p/n: 794617-6
Tyco, Connector house 6 pins. Bag with 10 pcs
RT-O-TYCO-H12
TYCO p/n: 1-794617-2
Tyco, Connector house 12 pins. Bag with 10 pcs
RT-O-TYCO-H16
TYCO p/n: 1-794617-6
Tyco, Connector house 16 pins. Bag with 10 pcs
RT-O-TYCO-CR
TYCO p/n: 794606-1
Tyco, Crimp Contacts for connector house. Wire size 0.2 to 0.5 mm2.
Bag with 100 pcs.
RT-O-TYCO-TOOL
TYCO p/n: 91501-1
Tyco, Crimp hand tool for easy assembly of TYCO crimp contacts.
Wire size 0.2 to 0.5 mm2
Recommended tool:
Alternative tools:
Tyco 91501-1 (0.20 to 0.50mm2) RS 495-9675, Farnell 1111475
Tyco 91502-1 (0.05 to 0.15mm2) RS 495-9675, Farnell 1111476
Extraction tool:
Tyco 843996-6 extraction tool. RS 495-9704, Farnell 1111477
Connector Mini USB-B
The USB port is for programming and communication with the RTCU IDE (RACP compliant
application). A standard USB cable with a connector length of 10mm on the USB-B end can be used
between the device and the PC
Connector Ethernet
This is a standard 10Base-T/100Base-TX IEEE 802.3 compliant Ethernet connector. Please use an
appropriate connector and cable, such as a standard CAT-5 twisted pair patch cable
Connector USB-Host
These are standard full-speed USB-A host port connectors and used for communication with
accessories connected to the host port. These ports are supplied internally, and current
consumption is limited to 500mA

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Power supply
The RTCU NX-200 device must be supplied with 8..36 VDC from an external DC power source
connected to the 4 pin power connector. Positive power is applied to the SUPP pin, and the ground
is connected to the PGND pin.
The connector has two “SUPP” supply pins as these also supplies power to the digital outputs. If
the total current consumption on the digital outputs exceeds 1.5A, then power must be applied to
both pins. Otherwise, one pin is sufficient.
There are three different labels for the ground connections: Power Ground (PGND), Signal Ground
(SGND) and Analog Ground (AGND). The signal and analog grounds are filtered from the power
ground. Power ground must only be used as a power supply return path. The signal ground is
used as a ground reference for digital I/O’s and serial interfaces, and the analog ground is used as
a low noise analog ground reference for the analog inputs.
The RTCU NX-200 is protected against wrong polarity. If a chassis or system grounds are
connected to either SGND or AGND, a wrong polarity on the supply lines will destroy the internal
GND connection. For the avoidance of such a scenario, a fuse can be installed on the positive
supply.
The RTCU also contains an internal high capacity backup battery that will supply the RTCU, if the
external power supply should fail or be disconnected. By default, the RTCU is powered down
when a power failure occurs. This setting, however, can be changed. Please consult the RTCU IDE
documentation for additional information.
Disabling the external DC power from the application interface and forcing the device to operate
on the internal backup battery is supported. Please consult the RTCU IDE documentation for
additional information.
When the ignition input is activated with a logical high, the RTCU device will wake-up if it was in
power-down mode. The ignition input (digital input 1) is available on the power connector to
minimize the need for connectors in minimal installations, but it is also available on the X3
connector (digital I/O and analog Inputs) - only one should be used at a time.
X1: 4 pin PWR connector overview.
Pin
Name
Description
1
SUPP
Power supply, positive (+) connection
2
DI1/IGN
Digital input 1 / Ignition input (Shared with 16 pin connector)
3
SUPP
Power supply, positive (+) connection
4
PGND
Power Ground

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Digital outputs
The digital outputs control four “high-side” switches. They function like a contact, where one side
is connected to the positive supply of the RTCU unit, and the other is the output. The switches are
protected against short circuit, ESD and electronic kickback from inductive loads such as relays,
etc. The maximum switch-able inductance is 20mH and must not be exceeded.
The digital outputs are supplied through the X1 power connector that also supplies the rest of the
RTCU unit. As this power is also the RTCU NX-200 main power, a power-fail would also affect
the digital outputs.
The RTCU unit offers a very advanced power management that makes it possible to have one or
more outputs enabled while the RTCU is in low power mode. Please consult the RTCU IDE
documentation for additional information.
X3: 16 pin I/O connector overview.
Pin
Name
Description
1
DOUT 1
Digital output 1
9
DOUT 2
Digital output 2
2
DOUT 3
Digital output 3
10
DOUT 4
Digital output 4
Specification for each digital output
Type
Min.
Max.
Unit
Solid state
5.5
36
VDC
Short-circuit, Overload, Overvoltage, ESD,
Inductive kick-back protected up to 20mH (single pulse).
-
1.5
A
-
280
mΩ
On-state resistor per channel
Please note: Special attention to wiring must be taken; if the total current consumption of the
digital outputs exceeds 1.5A, then PGND must be used as a return path for the output(s).
If the total current consumption of the digital outputs exceeds 5A, the two SUPP pins and PGND
must be used for supply.

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Digital Inputs / Ignition Input
The digital inputs are all low pass filtered and transient protected. To activate the inputs, connect a
positive voltage between the input and the GND connector.
Please note: The DIN 1/IGN input is special as it also functions as the ignition input. If the ignition
input is activated with a logically high or low (Wait For Event mode only), when the RTCU is in
low power mode, it will wake-up the unit. A power apply will also wake-up the unit, if it is in
power-down mode or WaitForEvent mode with power Apply and/or ignition selected for wake-
up. The ignition is de-bounced with a period between 1-2 ms, when used as a digital input. So, any
logical level applied to this input must be greater than 2 ms to be valid. The DIN 1/IGN input is
available on both the X1 power connector and the X3 connector together with the other digital
inputs –only one should be used at a time.
The power management allows the possibility to configure a wake-up on one or more digital
inputs with individually configured falling- or rising edge detection. Please consult the RTCU IDE
documentation for additional information.
X3: 16 pin I/O connector overview.
Pin
Name
Description
3
DIN 1/IGN
Digital input 1 / Ignition input. (Shared with X1)
11
DIN 2
Digital input 2
5
DIN 3
Digital input 3
13
DIN 4
Digital input 4
6
DIN5
Digital input 5
4
SGND
Signal Ground
12
SGND
Signal Ground
14
SGND
Signal Ground
Specification for each digital input:
Min.
Typ.
Max.
Unit
Logic “High”
8
12
40
VDC
Protected against transients and
low-pass filtered
Logic “Low”
-5
-
3
VDC
Cut-off frequency
-
25
-
kHz
Input impedance
-
14
-
kΩ

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Analog Inputs
The analog inputs are voltage inputs specified with an operating range of 0V to 10V DC. The
conversion resolution is up to 12 bit (0..4095). Please consult the RTCU IDE documentation for
further details.
The input signal is connected between AINx and AGND. AGND must be connected to the
reference of the connected equipment. Please be aware that deviations may occur, as the system is
very noise sensitive. Avoid long unshielded wires, and large fast-changing signals routed parallel
to the analog signals.
The inputs are low-pass filtered, ESD- and transient protected.
X3: 16 pin I/O connector overview.
Pin
Name
Description
7
AIN 1
Analog input 1
8
AIN 2
Analog input 2
15
AGND
Analog Ground
16
AGND
Analog Ground
Specification for each analog input:
Min.
Typ.
Max.
Unit
0
-
10
VDC
Protected against transients and
low-pass filtered
Precision is based on
measurements @ 25 ˚C
Resolution
-
-
12
Bit
Precision
-
0.15
0.3
%FSR
Cut-off frequency
-
4.5
-
kHz
Input impedance
-
40
-
kΩ

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Flex Inputs
The flex inputs are multi-mode inputs that can be configured to operate as either analog or as
digital inputs. The operating range is from 0V to 30V DC and is configurable as digital inputs with
customized threshold values.
The flex inputs can also be used as digital inputs, either behaving the same way as the normal
digital inputs with the same threshold values or by using different threshold values for more
advanced features.
The same flex input can be used for multiple digital inputs with different settings, e.g., different
threshold values or debounce timing.
Configuring the flex input for band matching allows triggering the digital inputs at specific values,
making it possible to connect circuits that generate different voltages for different states and then
read the state directly.
An example could be using switches and resistors to create an R2R ladder that allows for
connecting multiple switches to a single flex input.
See the RTCU IDE documentation for more details about how to configure the flex inputs as digital
inputs.
The input signal is connected between FLXINx and AGND. AGND must be connected to the
reference of the connected equipment. Please be aware that deviations may occur, as the system is
very noise sensitive. Avoid long unshielded wires, and large fast-changing signals routed parallel
to the analog signals.
The inputs are low-pass filtered, ESD- and transient protected.
X5: 6 pin FLXIN connector overview
Pin
Name
Description
1
FLXIN1
Flex input 1
4
FLXIN2
Flex input 2
2
FLXIN3
Flex input 3
5
FLXIN4
Flex input 4
3
AGND
Analog Ground
6
AGND
Analog Ground

RTCU NX-200 Technical Manual V1.00
Advanced Automotive M2MI/IoT Gateway
Logic IO ApS. Ph: ([phone]
Holmboes Allé 14 Fax: [phone]
8700 Horsens Page 20 of 45 Email: [email protected]
Denmark www.logicio.com
Specification for each flex input:
Min.
Typ.
Max.
Unit
0
-
30
VDC
Protected against transients and
low-pass filtered
Precision is based on
measurements @ 25 ˚C
Resolution
-
-
12
Bit
Precision
-
0.4
0.5
%FSR
Cut-off frequency
-
4.5
-
kHz
Input impedance
-
120
-
kΩ