Logic IO RTCU MX2 turbo Technical Manual

RTCU MX2 turbo

Technical Manual

Version 2.04

RTCU MX2 turbo Technical Manual V2.04

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Introduction

This manual contains technical documentation which allows for easy installation and use of the
RTCU MX2 turbo unit. For information on the programming and software configuration of the
RTCU MX2 turbo please refer to the RTCU IDE documentation.

The RTCU MX2 turbo adds a new chapter to the highly successful era of the MX2 series, which
were originally launched in 2006 as the first member in the X32 architecture generation of RTCU
products. The RTCU MX2 turbo is offering a long range of new features and performance
improvements while still resting on the proven track-record and confidence of the MX2 series.

The RTCU MX2 turbo uses the next generation NX32 execution model and is fully backward
compatible with the X32 execution model of the former MX2 series. Existing software will
therefore be able to operate without any changes or costly re-testing.
Mechanically and electrically the MX2 turbo is fully back-ward compatible with the RTCU MX2
pro/pro+ and constitutes therefore a direct plug-in replacement.

The RTCU MX2 turbo is designed for a broad variety of advanced telemetry / telematics
applications and has been designed according to the highest technical standards for professional
automotive and industrial use. The product has all necessary regulatory approvals – including
2004/104/EC / UN ECE R10 – edition 3 and CE mark.

The advanced power-management features on the RTCU MX2 turbo combined with the on-board
high-capacity Li-Ion battery allows the unit to stay in power-saving mode for a longer period still
being connected to the GSM network and capable of waking up on for example GSM activity,
change of digital inputs or a vibration sensor.

For demanding applications, the RTCU MX2 turbo offers GSM 3G/HSDPA, and the positioning is
enhanced with a state-of-the-art GNSS receiver with GPS and GLONASS support.

The RTCU MX2 turbo rests on the RTCU M2M Platform that brings all the necessary tools
together to develop, implement and maintain today’s sophisticated M2M/IoT applications.

For detailed information on the powerful RTCU M2M Platform, please refer to the
RTCU M2M Platform datasheet.

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The technical highlights of the RTCU MX2 turbo:

➢ Based on the RTCU M2M Platform

1

➢ NX32 execution architecture.
➢ RTCU IDE development tool with a full featured device simulator.

o Huge standard API with more than 800+ functions.
o Comprehensive protocol support, including:

TCP-UDP/IP, FTP, SMTP, RACP, MQTT, MODBUS, FMS/J1939, NMP/Garmin FMI.

o Fully backward compatibility with existing X32 applications.

➢ 3G version: High-speed 3G/HSDPA GSM engine. Backward compatible with 2G/2.5G.
➢ 2G version: World-wide Quad-band GSM engine.
➢ Internal and external SIM-card reader selectable from the application.
➢ Digitized audio can be played over GSM or to an external device.
➢ DTMF support for implementation of Interactive Voice Response applications.
➢ State-of-the art Multi-GNSS positioning engine with GPS, GLONASS,QZSS.
➢ High-performance 3-axis accelerometer with 16g scale.
➢ Enhanced memory sub-system with fast program execution.
➢ Huge data-flash/logger memory with a capacity of 8.5 MB.
➢ Internal 8 MB FAT32 flash drive.
➢ Standard FAT32 SD-CARD reader with up to 32 GB capacity.
➢ 2 x RS232 channels and 1 x RS485 channel.
➢ 2 x analog inputs with 0..10 volt / 12 bit precision.
➢ 5 x digital inputs and 4 high-power solid-state digital outputs.
➢ 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.
➢ Wide operating range from 8..36 VDC.
➢ External power can be selectable enabled/disabled by the application.
➢ On-board high-capacity Li-Ion battery.
➢ Advanced power-management with wake-up on a wide range of events.
➢ Hands-free interface with microphone and Class-D audio speaker amplifier.
➢ High-speed USB programming cable support.
➢ Fully supports the Professional Navigation and Messaging device PNM-220.
➢ Support the Garmin Fleet Management Interface.
➢ Fully supported by the RTCU Gateway 2 and the RTCU Deployment Server.
➢ Accessories: Wi-Fi, Ethernet, Bluetooth, Camera and PNM-220 Navigation Device.

➢ Exclusive and durable GOLD aluminum encapsulation.

1

Please see “The RTCU M2M Platform” data sheet for more information.

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Table of contents

Introduction ...................................................................................................................................................... 2

The technical highlights of the RTCU MX2 turbo: ...................................................................................... 3

Graphical view ................................................................................................................................................. 6

External connections ....................................................................................................................................... 7

Overview ...................................................................................................................................................... 7

Accessories for cable assembly .................................................................................................................. 9

Power supply ............................................................................................................................................. 10

Digital Outputs .......................................................................................................................................... 11

Digital Inputs / Ignition Input ................................................................................................................. 12

Analog Inputs ............................................................................................................................................ 13

RS232 port 1 / programming port ........................................................................................................... 14

RS232 port 2 ............................................................................................................................................... 14

RS485 ........................................................................................................................................................... 15

CAN ............................................................................................................................................................ 16

1-Wire bus .................................................................................................................................................. 17

DC-Out ........................................................................................................................................................ 17

Hands-free connector................................................................................................................................ 18

External voice output ................................................................................................................................ 18

3D movement sensor ..................................................................................................................................... 19

LED Indicators ............................................................................................................................................... 20

User LED A and B ..................................................................................................................................... 20

System LED S1 and S2 .............................................................................................................................. 21

Switches .......................................................................................................................................................... 22

DIP-switch .................................................................................................................................................. 22

System switch (RST).................................................................................................................................. 22

Internal Li-Ion battery ................................................................................................................................... 23

Internal / External SIM-card readers ........................................................................................................... 24

Installing the external SIM-card .................................................................................................................. 24

Installing the internal SIM-card ................................................................................................................... 25

SD-CARD reader ........................................................................................................................................... 25

Approved SD-CARDs ............................................................................................................................... 25

Installing the SD-CARD ........................................................................................................................... 26

Antennas ......................................................................................................................................................... 27

GSM/UMTS ................................................................................................................................................ 27

GNSS ........................................................................................................................................................... 27

Device identification label ............................................................................................................................ 27

Power consumption ...................................................................................................................................... 28

Specification for the 99-channels multi-GNSS receiver ............................................................................ 29

Specification for the UMTS and Quad-band GSM engine ....................................................................... 30

Appendix A – Assembling/disassembling of the unit.............................................................................. 31

Appendix B – Installing a SIM-card into the internal SIM-card reader ................................................. 32

Appendix C – Enabling the CAN bus Write capability ........................................................................... 34

RTCU MX2 turbo Specifications .................................................................................................................. 36

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Graphical view

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External connections

Overview

Connections to external equipment are done via the connectors located on the back and front of the
RTCU MX2 turbo.

The front panel is equipped with connectors commonly accessed by the user: SIM-Card, SD­CARD, DIP-Switch, Headset, LED’s and RS232.

The back panel holds all connectors necessary for installation: 4-pin (X1) power and ignition, 6-pin
(X4) for RS232/Programming, 12-pin (X2) for different communication interfaces and a 16-pin (X3)
for analog and digital I/O. Connection to the GSM antenna is via a SMA female, and connection to
a 3V active GNSS antenna is done via the SMB male connector. Both antenna connectors are
located on the back panel.

A graphical overview of the front- and back are shown below:

Front-side view

Back-side view

System Switch

SER2

A

Hands-free

Connector

Sim Card Reader

Dipswitch

S1 B S2

SD-CARD Reader

1

Pin 1

antenna

GNSS

antenna

GSM

X4: SER1

X1: PWR

X3: I/O

X2: COM

9
1

1

1
7

1
4

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Connector X1: 4 pin PWR connector overview

Pin

Name

Description

1

SUPP

Power supply, positive (+) connection

2

DI5/IGN

Digital input 5 / Ignition input (Shared with X3)

3

SUPP

Power supply, positive (+) connection

4

PGND

Power Ground

Connector X2: 12 pin COM connector overview

Pin

Name

Description

1

1Wire

1-Wire bus

2

SGND

Signal Ground

3

CAN-H

CAN-bus H-signal

4

Voice

External voice

5

RS485+

RS485 non-inverting signal

6

RS485-

RS485 inverting signal

7

1W-LED

1-Wire ID-Button LED

8

SGND

Signal Ground

9

CAN-L

CAN-bus L-signal

10

SGND

Signal Ground

11

SGND

Signal Ground

12

DC-Out

+3.3V/150mA DC-Out for external equipment. (Shared with X4)

Connector X3: 16 pin I/O connector overview

Pin

Name

Description

1

DOUT 1

Digital output 1

2

DOUT 3

Digital output 3

3

DIN 1

Digital input 1

4

SGND

Signal Ground

5

DIN 3

Digital input 3

6

DIN 5/IGN

Digital input 5 / Ignition input (Shared with X1)

7

AIN 1

Analog input 1

8

AIN 2

Analog input 2

9

DOUT 2

Digital output 2

10

DOUT 4

Digital output 4

11

DIN 2

Digital input 2

12

SGND

Signal Ground

13

DIN 4

Digital input 4

14

SGND

Signal Ground

15

AGND

Analog Ground

16

AGND

Analog Ground

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Connector X4: 6 pin SER1 connector overview

Pin

Name

Description

1

TD

Transmit Data from serial port 1, RS232 compatible

2

RS-DET

Programming cable detect, normally unconnected
(if programming cable, connect to GND)

3

DC-Out

+3.3V/150mA DC-Out for external equipment.
(Shared with X2)

4

RD

Receive Data for serial port 1, RS232 compatible

5

SGND

Signal Ground

6

SGND

Signal 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

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

2.5mm MicroJack

Plug for headset connector. Farnell 5096339 (black plastic house) or
Farnell 8045453 (metal house).

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Power supply

The RTCU MX2 turbo device must be supplied with 8..36 VDC from an external DC power source
connected to the X1 connector. Positive power is applied to the SUPP pin, and 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 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)

• Analog Ground (AGND)

The signal and analog grounds are filtered from the power ground. Power ground must only be
used as power supply return path. The signal ground is used as 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 is protected against wrong polarity. If a chassis or system ground is connected to either
SGND or AGND, a wrong polarity on the supply lines will destroy the internal GND connection.
For avoidance of such a scenario, a fuse can be installed on the positive supply.

The RTCU also contains an internal high capacity backup battery which will supply the RTCU if
the external power supply fails or is disconnected. By default, the RTCU is powered down when a
power fail occurs. This setting, however, can be changed. Please consult the RTCU IDE on-line
help for more information. The display will automatically turn off when external power is
removed.

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 unit will wake-up if it was in
power down mode. The ignition input (digital input 5) 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

DI5/IGN

Digital input 5 / Ignition input (Shared with X3)

3

SUPP

Power supply, positive (+) connection

4

PGND

Power Ground

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Digital Outputs

The digital outputs control eight “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 switchable 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 the power is also the RTCU MX2 turbo main power, a power-fail would also affect
the digital outputs.

The RTCU unit offers very advanced power management which makes it possible to have one or
more outputs enabled while the RTCU is in low-power mode. Please consult the RTCU IDE on-line
help for more 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

Max.

Unit

Solid state

36

VDC

Short-circuit, ESD,
Inductive kick-back protected up to 20mH.

1.5

A

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 return path for the output(s).

If the total current consumption of the digital outputs exceeds 5A, the two SUPP pins 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 a special input as it also functions as the ignition input. If the
ignition input is activated with a logical 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 wake­up. 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 RTCU IDE
documentation for additional information.

X3: 16 pin I/O connector overview

Pin

Name

Description

3

DIN 1

Digital input 1

11

DIN 2

Digital input 2

5

DIN 3

Digital input 3

13

DIN 4

Digital input 4

6

DIN5/IGN

Digital input 5 / Ignition input. (Shared with X1)

4

SGND

Signal Ground

10

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 low­pass filtered

Logic “Low”

-5 - 3

VDC

Cut-off frequency

-

450 - kHz

Input impedance

-

14 - kΩ

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Analog Inputs

There are two analog inputs available on the unit.
The analog inputs are voltage inputs specified with an operating range of 0V to 10V DC. The
conversion resolution is 12 bit +/- 1.5% FSR @ 25 degrees ˚C.

By default the analog voltage is converted to a digital value with a resolution of 10-bit before being
presented to the application (0..1023). The application can change the resolution to the full 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 high current, 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

-1.5 - 1.5

%FSR

Cut-off frequency

-

4.5 - kHz

Input impedance

-

40 - kΩ

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RS232 port 1 / programming port

This port can be used as general-purpose RS232 serial port or as a programming port. In order to
use the port for programming, the RS-DET pin must be connected to GND. When using the port as
general-purpose RS232, the RS-DET pin must be left unconnected.

X4: 6 pin SER1 connector overview

Pin

Name

Description

1

TD

Transmit Data from serial port 1, RS232 compatible

4

RD

Receive Data for serial port 1, RS232 compatible

2

RS-DET

Programming cable detect, normally unconnected
(if programming cable, connect to GND)

5

SGND

Signal Ground

RS232 port 2

The port is a general-purpose RS232 port with all control signals according to EIA-561 that defines
RS232 on a modular connector.

The signals are available on the RJ-45 connector located on the front panel of the RTCU.

Connector SER2: RJ-45 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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RS485

RS485 is available on the X2 connector as serial port 1. The RS485 bus a multi-drop network with a
maximum of 32 units connected simultaneously to the bus. The RS485 bus contains an RS485+
(non-inverting) and an RS485- (inverting) signal as well as a signal ground which must always be
connected to the common signal ground for all units connected to the RS485 bus!

The maximum cable length for the RS485 bus is according to EIA/TIA-485-A standard (max. 1200m
@ <100kbit); this limit is highly influenced by the quality of the cable, signaling rate, noise etc.

At longer cable lengths, noisy environments or high communication speed it might be necessary to
terminate the transmission line with a 1201 ohm resistor between terminal RS485+ and terminal
RS485- at each end of the wires to avoid signal reflections etc.

X2: 12 pin COM connector overview

Pin

Name

Description

5

RS485+

RS485 non-inverting signal (A)

6

RS485-

RS485 inverting signal (B)

11

SGND

Signal Ground

1

Assuming use of a CAT5 twisted pair cable

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CAN

The RTCU MX2 turbo provides the physical layer for the CAN (Controller Area Network) serial
communication interface in accordance with the ISO 11898 standard. The CAN bus is designed for
high-speed (up to 1Mbit) robust communication in especially harsh environments like those found
in the automotive industry.

The CAN interface can be connected to an existing CAN network with a common protocol like the
J1939 standard, to retrieve information for surveillance or information purposes. The interface can
also be used as a robust serial data link with a non-standard protocol. Please consult the RTCU IDE
documentation for more information.

The physical layer consists of a two wire (CAN-H and CAN-L) differential bus and a signal
ground for reference.

If the RTCU is connected to a “non-existing” network, a 1201 ohm resistor must be connected
between CAN-H and CAN-L on each end of the transmission line in order to terminate it and
avoid signal reflections.

Be aware that connecting the RTCU to a CAN network can be dangerous. If the RTCU is not
configured with the correct network parameters, it will lead to network corruption and may
interfere with other connected equipment on the bus. Especially in vehicles great precautions must
be observed to prevent communication interruptions.

By default, unit writing capability on the CAN bus is disabled and may be enabled by installing
hardware jumper JP9012 inside the unit.

A wide range of software functions is available for easy access to the network. Please consult the
RTCU IDE documentation for further information.

X2: 12 pin COM connector overview

Pin

Name

Description

3

CAN-H

CAN-bus H-signal

9

CAN-L

CAN-bus L-signal

8

SGND

Signal Ground

1

Assuming use of a CAT5 twisted pair cable

2

Please refer to appendix C regarding location.

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1-Wire bus

The 1-Wire bus is available on the X2 connector. All 1-Wire communication goes through a single
connection, and all 1-Wire devices connected to this connection retrieves its power directly from
the bus (called parasitic power). For this only two wires are needed – the 1-wire signal and the
ground reference – allowing minimal cable installations.

For 1-Wire ID-Button readers, which include a built-in LED, a dedicated output is available for this
purpose. Please consult the RTCU IDE documentation for further information.

For further information regarding modular 1-wire concept, please refer to the document “Modular
1-Wire Concept Technical Manual” on the Logic IO webpage.

X2: 12 pin COM connector overview

Pin

Name

Description

1

1Wire

1-Wire bus

7

1W-LED

1-Wire ID-Button LED

2

SGND

Signal Ground

Specification of the 1-Wire bus:

Max.

Unit

Total weight1

65

m

DC-Out

A 3.3V DC output is available on the X2 connector. It is possible to control the output in order to
save power. The output is short circuit- (to ground), ESD- and transient protected. Make sure not
to exceed the current specification of the output and be aware that inrush currents of the external
equipment may exceed the specifications. It is recommended to install a fuse to protect the output.

This output must be enabled from the application. Please consult the RTCU IDE on-line manual for
more information.

X2: 12 pin COM connector overview

Pin

Name

Description

12

DC-Out

+3.3V/150mA DC-Out for external equipment. (Shared with 6 pin
connector)

11

SGND

Signal Ground

1

The term of weight has been described in “Modular 1-wire concept – Technical Manual” document.

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Hands-free connector

The RTCU unit has a 4-pole 2.5mm jack connector for connecting a hands-free set to the built-in
GSM modem. The speaker output is amplified through the internal Class-D amplifier and is a
differential (balanced) signal. A loudspeaker of 4/8 Ω can be connected directly to the speaker
output. The microphone input is differential in order to minimize GSM (TDMA) noise. An audio
line transformer must be used to convert the signal to a single ended signal, when connected to
external equipment that does not have a differential (balanced) input. Otherwise the GSM noise
will not be suppressed / cancelled and will pass through all the way to the loudspeaker.

The microphone signal is biased internal for active microphones.

4 pin headset connector overview

Pin

Name

Description

1

Mic +

Microphone positive Input

2

SPK +

Speaker positive output

3

Mic -

Microphone negative input

4

SPK -

Speaker negative output

Microphone characteristics

Parameter

Min.

Typ.

Max.

Unit

Working voltage

1.65

1.8

1.95

V

Working current

20 1000

µA

Speaker characteristics

Parameter

Min.

Typ.

Max.

Unit

Working voltage

3.5

3.8

4.2 V Output power (THD+N=10%)

0.83

2.05

W

Please consult the RTCU IDE documentation for more information on using the Hands- free
interface.

External voice output

A voice audio output is available on X2 connector. Digitized audio can be played through this
output by the application interface. Please consult the RTCU IDE documentation for more
information about enabling the xVoice output and playing digitized voice messages.

The output is at line-out level (3Vpeak-peak), and internally shared with GSM voice line.

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3D movement sensor

The RTCU MX2 turbo unit contains a 3-axis accelerometer in order to detect both vibration and
motion. It makes it possible to detect movement and position change in 3 directions, X-Y-Z with a
force as high as 16g. The simplest use is with the power management detecting when the vehicle is
moved, and the most advanced analytical applications such as driving behavior / eco driving.
Please consult the RTCU IDE documentation for more detailed information.

The positions of the 3-axis are as following:

Specification

Unit

Resolution

±16

g

The acceleration can be set as relative to motion,
or relative to earth gravity

Precision

12

bit

+X

+Y

+Z

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LED Indicators

Three bi-colored (red and green) and a single yellow LED indicator are present on the front of the
unit (see graphical view).

Two bi-colored LED’s (A and B) are available to the user and the remaining two LED’s (S1 and S2)
are signaling the status and possible errors of the RTCU unit.

User LED A and B

LED A and B are composed of four individually controllable LEDs:

• LED named A on the front consists of LED 1 (green) and LED 2 (red).

• LED named B on the front consists of LED 3 (green) and LED 4 (red).

They are easily accessed from within the application program, and it is possible to mix the LED’s

to obtain a third color: yellow. Please consult the RTCU IDE documentation for more information.

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System LED S1 and S2

The RTCU is equipped with two system LED’s which shows the status and possible errors of the
RTCU unit.

The different patterns are listed in the table below. If the color of the system LED S1 is yellow, the
unit is actively communicating with the RTCU IDE (or another program, supporting the RTCU
RACP protocol).

The single yellow LED is signaling either the GSM module activity, or if all other LED’s are off,
that the RTCU is in the “wait for event” low power state.

S1: System LED1 pattern overview

Pattern

Description

Fastest blinking, green

The unit is initializing, preparing to start the application.

Fast blinking, green1

The unit has been forced into recovery mode with the use of
the system switch. The application is not executing.

500ms On / 500ms Off green1

The unit is executing the application program

1.5s On / 0.5s Off. green1

The unit is executing the application program, while
charging the internal back-up battery.

Fast blinking, red1

A runtime error has been detected in the program.
Use the RTCU IDE to obtain the fault log.

Alternating Fast/Slow, red1

The unit has lost its firmware! This can only happen if,
during a firmware upgrade, the RTCU unit loses power or
the communication is lost completely. In this case, simply
upload the firmware to the unit again.

75ms On / 925ms Off, green

Execution speed is different from full-speed.

S2: System LED2 pattern overview (GSM activity and “Wait For Event”)

Pattern

Operating Status

Off

The GSM module is turned off

600 ms On / 600 ms Off

Missing SIM card or PIN code.
Network search and logon in progress.

75 ms On / 3 s Off

Logged on to the network.

75 ms On / 75 ms Off /
75 ms On / 3 s OFF

A 3G/GPRS session is active.
Flashing

Indicates 3G/GPRS data transfer.

On

A voice or CSD session is active.

8 s OFF / 10 ms ON
(and all other LED’s OFF)

The RTCU unit is in low-power “Wait For Event” state.

1

Or yellow when communicating with the RTCU IDE or another program, supporting the RTCU RACP protocol).

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Switches

DIP-switch

The RTCU MX2 turbo unit contains a dipswitch with two switches. The dipswitch is located on the
front panel for easy user access (see the graphical view).

System switch (RST)

The RTCU MX2 turbo unit contains a combined reset/diagnostic switch. This switch is accessible
from the front of the unit (see graphical view) It is necessary to use a small thin object with a
diameter of approx. 2 mm, for example a straightened-out paper clip for this purpose.

By activating the switch shortly, the RTCU unit will do a complete reset, as if the power was
removed and reapplied.

If the reset switch is held down for approx. 3 seconds1 the unit will enter recovery mode2 where the
application will not be started. In recovery mode the system will automatically turn on the GSM
module to establish a connection to the GSM network and RTCU Gateway (if configured). This
method will also activate the unit when the unit is in power-down mode.

1

System LED S2 will flash three times when this state is entered.

2

System LED S1 will indicates this state by fast blinking green or yellow.

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Internal Li-Ion battery

The RTCU contains an internal Li-Ion battery for operation even when the external power is absent
making it possible to report power loss etc. Please note that when external power is removed, the
unit will be powered down by default. This setting can be changed as documented in the RTCU
IDE documentation.

The digital outputs will be disabled when a power fail occurs as the internal battery cannot
provide the supply voltage needed.

The battery charging is completely automated and handled internally by the RTCU unit – leaving
no need for user interaction. Different kinds of functions (Battery low, Charger enable, Charging
status, etc.) are available to the user application.

The charge current is relatively high, for a shorter charge time, as specified in the technical
specification. Make sure both power supply and cables can handle the high current.

The battery will be charged whenever a power fail has occurred to establish the capacity thus
making the battery ready for the next power fail. A maintenance charge will start every 20 days
after the last charge. This is to compensate for the battery self-discharge etc.

By default, the battery cannot be charged above 45C or below 0C. The RTCU offers charging
down to -10 ˚C using a specialized algorithm to protect the battery.

If the temperature is above 45C the charging will not start and will be postponed until it is below
this threshold.

The temperature has a very high influence on the battery capacity. At 0C the capacity has
dropped to 60% of the initial capacity and it falls dramatically at lower temperatures.

The battery cycle (numbers of charges and discharges) also influences the capacity. After 300 cycles
the capacity has dropped to approximately 80% of the initial capacity.

Warning

Misusing the RTCU unit may cause the built-in battery security circuit to be damaged.

• Do not place the RTCU unit in high temperature locations such as in direct sunlight or near

engines. Using the RTCU unit in this environment may result in loss of battery performance and a
shortened life expectancy.

• Do not expose the unit to water, salt water or allow the battery to get wet.

• Avoid strong impacts and shocks.

For more information regarding the environmental limitations see “Specifications for RTCU MX2
turbo” below or consult the RTCU MX2 turbo Datasheet.

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Internal / External SIM-card readers

The RTCU MX2 turbo unit contains both an internal and an external standard mini-SIM card
reader.

The external reader is located on the front panel (please see the graphical view) and is easily
accessed. The internal reader is located on the top side of the base-board. It is possible to install
SIM-card in both readers at the same time and switch programmatically between them from the
application. The RTCU MX2 turbo is also prepared for an M2M-chip internally, which shares the
SIM-card signals with the internal SIM-reader. Please contact to Logic IO for information on this
option.

Installing the external SIM-card

The SIM card reader has a push/push eject system and a mechanical lock for secure installation of
the SIM card. Orientate the card as shown below and insert it into the card reader. Push the card
into the reader until a click sound occurs – the card will now stay in its position. It might be
necessary to use a small tool or pencil as the card, for protection purposes it is placed underneath
the enclosure surface. Furthermore, a mechanical slide lock can be used to prevent it from being
removed accidentally.

To remove the card, slide the lock to its unlocked position and push the card into the reader until a
small click sound occurs. The reader will now eject the card. It might be necessary to use a small
tool or pencil to push the card into the reader.

SIM card orientation

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Installing the internal SIM-card

The internal SIM-card reader is located internally on the top-side of the base-board. The reader
does not have a mechanical detection, or lock status pins.

If the SIM-card is removed during GSM operation the unit will shortly after be rejected from the
GSM network.

Please refer to Appendix B for detailed description of installing the internal SIM-card.

SD-CARD reader

The RTCU MX2 turbo unit has a standard SD-CARD reader with a FAT32 file-system support for
standard PC-compatibility, with up to 32 GB capacity support.

The SD-CARD reader features a Push/Push eject system for reliable insertion and operation.

Approved SD-CARDs

To ensure the highest performance and compatibility it is important to use SD-CARDs that has

been approved and tested by Logic IO.

The following Commercial Grade SD-CARDs from Sandisk have been approved for use:

Capacity

Sandisk SKU

4GB

SDSDB-004G-B35

8GB

SDSDB-008G-B35

16GB

SDSDB-016G-B35

32GB

SDSDB-032G-B35

Commercial grade SD-CARDs can be used in applications where the limited write endurance is
acceptable - for example if the SD-CARD is often replaced. Commercial grade SD-CARDs should
not be used in applications where a potential failure on the media is considered mission critical.

For applications that uses the SD-CARD media extensively and where a failure is critical, it is
recommended to use approved Industrial Grade SD-CARDs.

Logic IO has approved and recommends industrial grade SD-CARDs from ATP that is available in
capacities from 512 MB to 32 GB.

ATP Industrial Grade SD/SDHC Cards are optimized for demanding industrial applications with
consistent performance in all conditions. ATP uses reliable SLC flash technology with a flash
endurance more than 20 times higher than commercial grade products with MLC flash.

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The differences in write endurance between commercial grade MLC flash and ATP Industrial
grade SLC flash is quite remarkable for write-intensive applications:

Product Line

Details

Total Writeable Data

Prediction @ 1GB

Time Prediction

@ 500 writes a day (1GB)

ATP Industrial

Grade

Industrial SLC Flash
+ Advanced Wear Leveling

80,000GB

or

2,800,000 writes

5,740 days

or

15.7 years

Commercial

Grade

Grade A MLC
(2 bits per cell)
+ Advanced Wear Leveling

4,000GB

or

140,000 writes

280 days

Installing the SD-CARD

To insert a card into the reader, orientate it as shown below and push the card into the reader until
a click sound occurs. Remove the card by pushing it into the reader until it clicks and the reader
will eject the card. Avoid removing the SD-CARD during access to the card.

Please consult the RTCU IDE documentation for more information.

SD-CARD orientation

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Antennas

GSM/UMTS

The RTCU MX2 turbo contains an SMA female connector for connecting a suitable GSM/UMTS
band antenna. When installing the antenna, please make sure that the antenna is not in close
proximity to metallic parts or anything else that can influence the efficiency of the GSM antenna.
Please consult the installation guide that follows the GSM antenna.

GNSS

The RTCU MX2 turbo supports GPS, GLONASS and QZSS so a suitable GNSS antenna must
therefore be used. The connection is with an SMB Male connector and the GNSS antenna must be a
3V active antenna with a SMB Female connector.

When installing the antenna, please make sure that the antenna has a reasonable view of the sky,
so that it can receive the weak signals from the satellites. Please also consult the installation guide
that follows the antenna.

Device identification label

The barcode found on the MX2 turbo unit contains the serial number. The first three digits in the
serial-number identify the unit type.
For the RTCU MX2 turbo this unique code is 292 or 286. For the RTCU MX2 turbo-2G the code is
293 or 285.

The barcode format used: 2/5 Interleaved with Check Digit.

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Power consumption

Detailed information on the maximum power consumption of the MX2 unit in different states and
at different supply voltages is listed below.

Maximum power consumption: Unit running on external supply

8V

12V

30V

Unit Active

70

45

20

mA

Unit Active with GSM On

80

55

22

mA

GSM idle @ -63dBm

Unit active with GPS On

100

65

26

mA

Unit Active with GSM/GPS On

110

75

30

mA

GSM idle @ -63dBm

Unit Active while charging

950

650

300

mA

Unit in power-down

0.4

0.3

0.2

mA

Restart on DI5, RTC

Unit in “wait for event”

0.4

0.3

0.2

mA

Resume on DI, Vibration, RTC

Unit in “wait for event”

9 6 3

mA

Resume on CAN

Unit in “wait for event”

9 6 3

mA

Resume on RS232 port 1

Unit in “wait for event”

10 7 4

mA

Resume on RS232 port 2

Unit in “wait for event”

25

16 7 mA

Resume on GSM activity

Note: Measured at TA = 25 ˚C

If the external power source is removed and the internal battery is enabled the power consumption
from the battery will be as listed below.

Maximum power consumption: Unit running on internal battery

Battery

Unit Active

100

mA

Unit Active with GSM On

130

mA

GSM idle @ -63dBm

Unit active with GPS On

140

mA

Unit Active with GSM/GPS On

180

mA

GSM idle @ -63dBm

Unit in power-down

0.7

mA

Restart on DI5, RTC

Unit in “wait for event”

0.7

mA

Resume on DI, Vibration, RTC

Unit in “wait for event”

12

mA

Resume on CAN

Unit in “wait for event”

12

mA

Resume on RS232 port 1

Unit in “wait for event”

13

mA

Resume on RS232 port 2

Unit in “wait for event”

35

mA

Resume on GSM activity

Note: Power consumption from a 80% charged battery at TA = 25 ˚C

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Specification for the 99-channels multi-GNSS receiver

MediaTek MT3333 Single Chip Super Sensitivity

General:

99 acquisition / 33 tracking / up to 210 PRN channels.
Multi GNSS engine for GPS, GLONASS and QZSS
Support DGPS, SBAS(WAAS,EGNOS,MSAS,GAGAN).
A-GPS capable.
Anti-jamming, Multi-tone Active Interface Canceller.

Update Rate:

NMEA @ up-to 4 Hz

Accuracy:

Position

<2.5m CEP

Velocity

<0.1m/s

DGPS/SBAS

<2.5m CEP1

Sensitivity:

Tracking/navigation

-165 dBm

Reacquisition

-160 dBm

Cold Start (Autonomous)
(GPS chipset reference parameters)

-148 dBm

Time-To-First-Fix2:

Autonomous Operation in Standard Sensitivity Mode

Reacquisition3

< 1 sec.

Hot Start4

< 1 sec.

Aided start5

< 3 sec.

Warm start6

< 30 sec.

Cold start7

< 35 sec.

Interface protocol:

NMEA 0183 v3.01 with GGA, VTG, GLL, GSA, GSV and RMC.

1

Depends on accuracy of correction data provided by the SBAS service.

2

All satellites at -130 dBm.

3

Time to get a fix when signal has been blocked for a short period of time.

4

The GPS has been powered down for less than 2 hours and the stored position and time are valid.

5

The GPS has valid A-GPS information. A-GPS is currently unsupported in the standard firmware.

6

The GPS has been powered down for more than one hour, but has stored information about its current position and time.

7

The GPS has no valid navigation data.

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Specification for the UMTS and Quad-band GSM engine

The RTCU MX2 turbo is available in three versions:

SKU version

GSM frequency

UMTS/HSDPA frequency

Market

MX2T

900/1800 MHz

900/2100 MHz

EMEA/APAC 3G.

MX2T-2G

850/900/1800/1900 MHz

n/a

World-wide GSM.

MX2T-A

850/900/1800/1900 MHz

850/1900 MHz

America UMTS.

Specifications for the 3G/HSDPA engine on the SKU MX2T and MX2T-A:

Chipset:

Qualcomm QSC6270 single-chip engine.

HSDPA:

Release 5 (category 6). Max 3.6 Mbps.

EDGE:

Downlink only. Max. 236.8 Kbps.

GPRS:

Multi-slot Class 12. Max. 85.6 Kbps.

UMTS:

Release 99/5. Max. 384 Kbps.

GSM:

Release 99/4.

CSD:

64 Kbps.

Speech Codec Modes:

HR, FR, EFR, AMR, AMR-WB.

Echo Arithmetic:

Echo cancellation, Noise reduction.

eCall:

Accident, Emergency Services1

Specifications for the Quad-band GSM engine on the SKU MX2T-2G:

GSM frequency:

850/900/1800/1900 MHz

GPRS:

Multi-slot Class 12. Max. 85.6 Kbps.

CSD:

14.4 Kbps.

Speech Codec Modes:

HR, FR, EFR, AMR, AMR-WB.

Echo Arithmetic:

Echo cancellation, Echo suppression, Noise reduction.

1

Currently not supported in firmware.

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Appendix A – Assembling/disassembling of the unit

The CAN write enable jumper and a SIM-card reader are located inside of the unit. In order to gain
access to these interfaces, it is necessary to remove the internal board from the aluminum
encapsulation. The following steps describe the process.

ATTENTION: The device internal electronics are sensitive to Electro Static Discharge
(ESD) and must be handled only in an ESD safe environment.
Avoid touching the electronics components and parts.

1. Remove the back-panel. Use a Torx TX10 screwdriver to remove the two screws.

2. Gently pull out (not all the way) the electronic board so it is exposed.

Hint: Use a finger to push on the RJ45 connector on the opposite end.

For assembling please follow the above steps backwards. In any case DO NOT USE FORCE.
If difficulty is experienced, it is because the light-pipes on the opposite end has moved a bit, when
the electronic board was removed, and it may be necessary to loosen the front end-panel a bit to
make them fit in the holes again.

Be careful not to tighten the screws too much thereby damaging the aluminum.

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Appendix B – Installing a SIM-card into the internal SIM-card reader

To get access to the internal SIM-card reader it is necessary to disassembly the device as described
in Appendix A.

The SIM card reader is a lid-based type with a mechanical lock to secure a safe installation.

1. Open the hinged lid of the reader and orientate the SIM- card as shown below.

2. Insert the SIM-card into the lid of the card reader.

3. Close the lid and slide the metal locking mechanism to the locked position.

4. Assemble the unit again.

To remove the card, slide the metal locking mechanism to the unlocked position as shown with an
arrow and text on the lid, and open the lid. The SIM-card can now be removed.

Internal SIM-card reader

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SIM card orientation

SIM inserted and locked

Lock

Open

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Appendix C – Enabling the CAN bus Write capability

Connecting the RTCU to a CAN network can be dangerous. If the RTCU is not configured with the
correct network parameters, it can lead to network corruption and may interfere with other
connected equipment on the bus. Especially in vehicles great precautions must be observed to
prevent interruption of the communication.

By default, reading from the CAN bus is enabled and writing to the CAN bus is disabled.

Installing jumper JP901, and thereby enabling the CAN-bus Write capability of the unit, is done
on the sole responsibility of the user. Logic IO can not be held responsible for any problems, or
damage due to the decision to enable the CAN-bus Write capability.

The following steps must be taken to enable the CAN bus Write capability of the unit:

1. Disassemble the unit as described in the Appendix A

2. The jumper is located near the back panel as shown in the picture above.

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3. Install the jumper as shown above

4. Mount the end-panel and secure it with the screws.

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RTCU MX2 turbo Specifications

Processor and Main-memory

• Powerful 32-bit ST ARM7 processor.

• 2112 KB fast execution RAM.

• 4532 KB Flash for firmware/application.

Storage

• 7.5 MB persistent data flash.

• 8 MB internal FAT32 flash drive.

• 1 MB circular automatic datalogger.

• 20 KB FRAM with fast access /

unlimited write endurance.

• SD-CARD reader with up to 32 GB.

Digital/Analog Interface

• 4 x digital solid-state digital output.

Max. 36 volt / 1.5 A per. channel.
Short-circuit, ESD, Inductive kick-back
protected up to 20 mH.

• 5 x digital inputs.

Logic high: 8 to 40 VDC.
Logic low: -5 to 3 VDC.

• Digital input #5 can be used as ignition.

• 2 x analog inputs.

Range is 0..10V.
Resolution: 12 bit

Precision: ±1.5% FSR @ 25°C

• Protected against transients and low-

pass filtered.

• Expandable I/O with MODBUS.

Communication

• Full CAN2.0B with hardware filtering

and multi-speed support.

• 1 x RS232 with control signals.

• 1 x RS232 with RX/TX.

Alternatively used as service port.

• 1 x RS485 with MODBUS support.

• 1-Wire bus.

UMTS/GSM

• 3G / Quad-band with up to 3.6 Mbps.

• UMTS / EDGE / GPRS support.

• CSD with up to 64 Kbps (3G only)

• SMS / PDU.

• DTMF decoding / transmission.

• Digitized voice playback / IVR.

• eCall prepared.

• Mini-SIM 1.8/3 volt.

• External and internal SIM card-reader.

Switchable from the application.

GNSS / GPS

• Mediatek MT3333 Multi-GNSS chip.

• GPS, GLONASS and QZSS.

• 99 acquisition / 33 tracking channels.

• SBAS (WAAS,EGNOS,MSAS,GAGAN).

• Position update with up to 4 hz.

• A-GPS capable.

• Sensitivity.

Tracking: -165 dBm
Reacquisition: -160 dBm
Cold start: -148 dBm.

• Accuracy: < 2.5m CEP.

• Anti-jamming, Noise cancellation.

• Active 3 volt GNSS antenna.

Power Management

• 5 execution speeds.

• Wait for Event: Timer, Digital input,

RS232, CAN, GSM, Accelerometer and
power change state.

• Wait for event, from: 300 uA@12V.

• Supervision of supply voltage.

• Disable external power.

Environmental Specification

• Operating temperature: -35 to 60°C.

• Battery charge temperature:

-10 to 45 °C

• Recommended storage temperature:

0 to 45°C.

• Humidity: 5..90% (non condensing).

Physical Characteristics

• Encapsulation: Aluminum/plastic.

• Optional mounting bracket.

• Approx. 300 gram without accessories.

• W 97 x H 35 x D 132 mm.

(without antenna connectors).

Warranty

• Two-years return to factory parts and

labor.

• Optional warranty up to 5 years.

(restrictions apply).

Approvals

• E1 type approval:

2004/104/EC UN ECE R10 - ed 3.

• CE mark / Applied R&TTE directive.

• GSM engine: CE/GCF/FCC/PTCRB.

Accelerometer

• 3-axis digital acceleormeter.

• Resolution: 12 bit @ ±16g.

• Low-power mode.

Battery and Charger

• On-board 2Ah (nominal) Li-Ion battery.

• Intelligent charger with temperature

throttle and sub-zero degrees support.

• On-board temperature sensor.

External Interfaces.

• SIM-card slot for micro-SIM with lock and

presence detection.

• SD-CARD slot with presence and write

protect detection.

• Micro-jack 2.5” connector for hands-free.

• Audio out for digitized voice playback.

• 4 x LED indicators and 2 x DIP switches.

• Reset/recovery switch,

• TE-Connectivity ”Mate’n’Lock’:

RS232, I/O, Power, Communicaton.

• RJ45 for RS232 with full control signals.

• SMA Female connector for GSM.

• SMB Female connector for GNSS/GPS.

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Technical data are subject to changes.