Infranet Technologies M2M CONTROL CX660 User manual

M2M CONTROL CX660
Advanced Automotive M2M/IoT Gateway
Technical Manual
Version 1.03

M2M Control CX660 Technical Manual V1.02
Advanced Automotive M2MI/IoT Gateway
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Introduction
The M2M CONTROL CX660 is the most advanced automotive IIoT Gateway product available on
the market today. Based on the successful hardware architecture from the M2M Control CX360, 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 C650 or C660 devices!
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 M2M CONTROL CX660 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 M2M CONTROL CX660 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 M2M CONTROL CX660 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 M2M CONTROL CX660 is fully software and hardware compatible with the C6xx Series.
The advanced power-management features on the M2M CONTROL CX660 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
In our documentation the term “RTCU”stands for Remote Terminal Control Unit and constitutes
a unique combination of a programmable control-unit with the possibility of both digital- and
analog I/O plus a GSM / 2G / 3G / 4G communication,
This manual contains technical documentation on the installation and usage of the M2M
CONTROL CX660 device. For detailed information on the programming and software
configuration of the product, please refer to the M2M CONTROL IDE documentation.
For detailed information on the powerful M2M Control Platform, please refer to the
M2M Control Platform datasheet and the M2M CONTROL IDE documentation.

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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
Appendix A –Installing the external SIM-Card .......................................................................................37

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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
M2M CONTROL CX660 Specifications......................................................................................................43

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Important Information
Thank you very much for using a product. 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 Infranet Technologies GmbH 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 Infranet Technologies GmbH 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, Infranet
Technologies GmbH 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 Infranet Technologies for any technical or commercial inquiries:
Infranet Technologies GmbH
Tempowerkring 19
21079 Hamburg
Germany
Phone: [phone] - 260
Support: [e-mail]
Website: www.m2mcontrol.de

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Technical Highlights
Platform:
Based on the M2M Control Platform.
NX32L (NX32 for Linux) execution architecture.
M2M CONTROL 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.

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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/IGN
6
14
SGND
DC-Out
12
6
RS485-
DIN3
5
13
DIN4
SGND
4
12
SGND
DIN1
3
11
DIN2
DOUT3
2
10
DOUT4
X1: PWR
DOUT1
1
9
DOUT2
SUPPLY
3
1
SUPPLY
PGND
4
2
DIN5
/IGN

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Connector X1: 4 pin PWR connector overview
Pin
Name
Description
1
SUPP
Power supply, positive (+) connection
2
DIN5/IGN
Digital input 5 / 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
Digital input 1
4
SGND
Signal Ground
5
DIN3
Digital input 3
6
DIN5/IGN
Digital input 5 / Ignition input (Shared with X1)
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 M2M CONTROL 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 M2M CONTROL CX660 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 M2M CONTROL CX660 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 CX660 also contains an internal high capacity backup battery that will supply the device, if the
external power supply should fail or be disconnected. By default, the CX660 is powered down
when a power failure occurs. This setting, however, can be changed. Please consult the M2M
CONTROL 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 M2M CONTROL IDE
documentation for additional information.
When the ignition input is activated with a logical high, the 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
DIN5/IGN
Digital input 5 / 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 CX660, 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
CX660. As this power is also the M2M CONTROL CX660 main power, a power-fail would also
affect the digital outputs.
The CX660 offers a very advanced power management that makes it possible to have one or more
outputs enabled while the CX660 is in low power mode. Please consult the M2M CONTROL IDE
documentation for additional information.
When using the function pmExternalPower to disable the external supply it should be observed
that any digital outputs that are activated will draw approx. 0.6 mA @ 12VDC from the external
power source.
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 5/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 CX660 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 5/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 M2M
CONTROL IDE documentation for additional information.
X3: 16 pin I/O connector overview.
Pin
Name
Description
3
DIN 1/IGN
Digital input 1
11
DIN 2
Digital input 2
5
DIN 3
Digital input 3
13
DIN 4
Digital input 4
6
DIN5
Digital input 5 / Ignition input. (Shared with X1)
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
@12V
Logic “Low”
-5
-
3
VDC
Cut-off frequency
Bandwidth
-
25
12
-
kHz
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 M2M CONTROL 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 M2M CONTROL 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

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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