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TQ-Systems MBa7x User Manual

Mba7x um 0101
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MBa7x
User's Manual
MBa7x UM 0101
26.10.2020

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  • Page 1 MBa7x User's Manual MBa7x UM 0101 26.10.2020...

  • Page 2: Table Of Contents

    User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page i TABLE OF CONTENTS ABOUT THIS MANUAL ....................................1 Copyright and licence expenses................................1 Registered trademarks....................................1 Disclaimer ........................................1 Imprint ..........................................1 Tips on safety ........................................ 2 Symbols and typographic conventions ...............................
  • Page 3 User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page ii TABLE OF CONTENTS (continued) SOFTWARE ........................................60 MECHANICS........................................ 61 Dimensions......................................... 61 Thermal management .................................... 61 Assembly ........................................62 SAFETY REQUIREMENTS AND PROTECTIVE REGULATIONS ......................64 EMC ..........................................64 ESD ..........................................
  • Page 4 User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page iii TABLE DIRECTORY Table 1: Terms and Conventions .................................... 2 Table 2: Overview interfaces ....................................5 Table 3: Overview diagnostic and user’s interfaces ............................6 Table 4: Pinout connector X1, TQMa7S ................................8 Table 5: Pinout connector X2, TQMa7S ................................
  • Page 5 User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page iv TABLE DIRECTORY (continued) Table 54: Max currents, Mini PCIe ..................................43 Table 55: Mini PCIe interface, components ................................ 44 Table 56: Pinout Mini PCIe – X17.................................... 45 Table 57: Type of SIM card .......................................
  • Page 6 User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page v FIGURE DIRECTORY Figure 1: Block diagram MBa7x....................................4 Figure 2: Block diagram TQMa7x....................................7 Figure 3: Block diagram I C buses ..................................14 Figure 4: Position of temperature sensor LM75 on MBa7x ........................... 15 Figure 5: Position of RTC backup battery ................................
  • Page 7 User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page vi REVISION HISTORY Rev. Date Name Pos. Modification 0100 23.10.2019 Petz First issue Links updated 4.1.1.3 “Connectors on MBa7x” split into 0101 26.10.2020 Petz 4.1.1.3, 4.1.1.4 “Pinout TQMa7S“, “Pinout TQMa7D“...

  • Page 8: About This Manual

    Important Notice: Before using the Starterkit MBa7x or parts of the schematics of the MBa7x, you must evaluate it and determine if it is suitable for your intended application. You assume all risks and liability associated with such use. TQ-Systems GmbH makes no other warranties including, but not limited to, any implied warranty of merchantability or fitness for a particular purpose.

  • Page 9: Tips On Safety

    Violation of this guideline may result in damage / destruction of the MBa7x and be dangerous to your health.

  • Page 10: Naming Of Signals

    User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page 3 Naming of signals A hash mark (#) at the end of the signal name indicates a low-active signal. Example: RESET# If a signal can switch between two functions and if this is noted in the name of the signal, the low-active function is marked with a hash mark and shown at the end.

  • Page 11: Brief Description

    BRIEF DESCRIPTION This User's Manual describes the hardware of the MBa7x Rev. ≥0200. The MBa7x is designed as a carrier board for the TQMa7x. The figures in this User's Manual refer to the TQMa7x. All interfaces provided by the TQMa7x are available on the MBa7x.

  • Page 12: Functionality

    User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page 5 3.1.2 Functionality Core of the system is the TQMa7x with an NXP i.MX7. In addition to the standard communication interfaces like USB, Ethernet, RS-232, RS-485, etc. all other available signals of the TQMa7x are routed to 100 mil standard headers.
  • Page 13 User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page 6 3.1.2 Functionality (continued) Table 3: Overview diagnostic and user’s interfaces Interface Qty. Component Remark 4 × VBUS USB Host Green LED 1 × VBUS USB-OTG Green LED...

  • Page 14: Electronics

    More information is to be taken from the TQMa7x User's Manual. The boot behaviour of the TQMa7x can be customised. The required boot-mode configuration can be set with DIP switches on the MBa7x, see chapter 4.3.5. 4.1.1.2 Connectors X1, X2, X3 The available signals are routed to three connectors on the MBa7x.

  • Page 15: Pinout Tqma7S

    User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page 8 4.1.1.3 Pinout TQMa7S Table 4: Pinout connector X1, TQMa7S Ball Dir. Level Group Signal Signal Group Level Dir. Ball – Power VCC5V VCC5V Power – – Power...
  • Page 16 User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page 9 4.1.1.3 Pinout TQMa7S (continued) Table 5: Pinout connector X2, TQMa7S Ball Dir. Level Group Signal Signal Group Level Dir. Ball – Power DGND DGND Power – 1.8 / 3.3 V...
  • Page 17 User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page 10 4.1.1.3 Pinout TQMa7S (continued) Table 6: Pinout connector X3, TQMa7S Ball Dir. Level Group Signal Signal Group Level Dir. Ball – Power DGND DGND Power – 3.3 V...

  • Page 18: Pinout Tqma7D

    User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page 11 4.1.1.4 Pinout TQMa7D Table 7: Pinout connector X1, TQMa7D Ball Dir. Level Group Signal Signal Group Level Dir. Ball – Power VCC5V VCC5V Power – – Power...
  • Page 19 User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page 12 4.1.1.4 Pinout TQMa7D (continued) Table 8: Pinout connector X2, TQMa7D Ball Dir. Level Group Signal Signal Group Level Dir. Ball – Power DGND DGND Power – 1.8 / 3.3 V...
  • Page 20 User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page 13 4.1.1.4 Pinout TQMa7D (continued) Table 9: Pinout connector X3, TQMa7D Ball Dir. Level Group Signal Signal Group Level Dir. Ball – Power DGND DGND Power – 3.3 V...

  • Page 21: I 2 C Address Mapping

    Audio codec TLV320AIC3204, port expander PCA9555, HSIC USB hub USB4604i and PCIe clock generator 9FGV0241 are connected at I2C2. All three I C buses are also routed to 100 mil headers X23 and X25 on the MBa7x. The following table shows the I C addresses used.

  • Page 22: Temperature Sensor

    4.1.3 Temperature sensor An LM75A sensor is available on the TQMa7x and a second one on the MBa7x. Both sensors are connected to I2C1 and have different addresses, see 4.1.2. The address of the sensor on the MBa7x can be changed by reassembling configuration resistors.

  • Page 23: Rtc Backup

    4.1.4 RTC backup A CR2032 lithium battery with very low self-discharge is populated on the MBa7x to back-up the RTC on the TQMa7x. The TQMa7x provides an i.MX7-internal RTC and an optional, discrete RTC. Both RTCs are supplied by the lithium battery via pin LICELL of the TQMa7x.

  • Page 24: Port Expander

    4.1.5 Port Expander The 16-port port expander PCA9555 is used to control several components on the MBa7x. These include the alarm buzzer, User LEDs, User GPIOs, configuration signals for Mini PCIe and navigation buttons. The port expander is configured via I2C2. The sensor address can be changed by reassembling resistors. When changing the address, care must be taken to avoid address conflicts with existing I C devices.

  • Page 25: Power Management And Reset

    User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page 18 4.1.6 Power Management and Reset LTC3727 VCC24V (VCC3V3 / VCC5V) TQMa7x RUN2 VCC3V3_MB_EN RUN1 0.45 V RESET_OUT# KSZ9031 ENET1_RST# RESET# VCC5V OUT2 ENET2_RST# KSZ9031 OUT1 VCC3V3 LCD_RESET...
  • Page 26 User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page 19 4.1.6 Power Management and Reset (continued) The MBa7x provides several options to trigger a complete or partial reset of the MBa7x. The following table shows the signals used. Table 15: MBa7x Reset signals...

  • Page 27: Power Supply

    Block diagram power supply The MBa7x is supplied with 24 V via X26 or X27. From this voltage 1.0 V, 1.5 V, 2.5 V, 3.3 V, 5 V and 12 V are generated on the MBa7x. These voltages are used to supply the components on the MBa7x.

  • Page 28: Protective Circuitry

    Page 21 4.1.7.1 Protective circuitry of the MBa7x also supplies the 3.3 V / 5 V and the 12 V buck regulators on the MBa7x. The protective circuit (Figure 9) has the following characteristics: • Fuse, 4 A, slow blow •...

  • Page 29: Power Consumption

    Power consumption When operating the MBa7x with the TQMa7x, power peaks of up to approx. 85 W can occur if all supply voltages from external modules at the headers are loaded with maximum current. The power supply used must be designed accordingly.

  • Page 30: Power Supply Connectors

    User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page 23 4.1.7.3 Power supply connectors Figure 12: Position of power supply connectors – X26, X27 Table 17: Types of power supply connectors Connector Manufacturer / Number Description Cui Stack / PJ-102BH DC jack 2.5 mm / 5.5 mm, nominal: 5 A / 24 V...

  • Page 31: Communication Interfaces

    The firmware required by the USB hub is loaded by default from its own internal memory. As an assembly option, the USB hub can be connected to the I2C2 bus on the MBa7x. In this case, the firmware can also be loaded into the hub via this bus when the system is started.
  • Page 32 User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page 25 4.2.1 USB 2.0 Hi-Speed Host (continued) Figure 14: Position of USB-Host Top Figure 15: Position of USB-Host Bottom...
  • Page 33 User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page 26 4.2.1 USB 2.0 Hi-Speed Host (continued) Table 19: Types of USB connectors Manufacturer / Number Description Yamaichi / USB-A-002A Dual port USB receptacle, Type-A, U =30 V AC...

  • Page 34: Usb 2.0 Hi-Speed Otg

    USB 2.0 Hi-Speed OTG Both USB-OTG interfaces of the TQMa7x are provided on the MBa7x. OTG1 is available with all module variants as 5-pin Micro AB socket. OTG2 is only available at the Mini PCIe connector when the TQMa7D is used.
  • Page 35 User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page 28 4.2.2 USB 2.0 Hi-Speed OTG (continued) Table 24: Type of USB Micro AB receptacle Manufacturer / Number Description TE Connectivity / 1981584-1 USB receptacle, type Micro AB...

  • Page 36: Ethernet 1000Base-T

    4.2.3 Ethernet 1000BASE-T Both Ethernet MACs of the TQMa7x are connected on the MBa7x via RGMII to two TI PHYs DP83867. The TQMa7D offers both MACs and thus both Ethernet interfaces, the TQMa7S offers only one Ethernet interface. The PHY DP83867 is started via boot straps with default values. All boot straps can be customized with assembly options.
  • Page 37 User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page 30 4.2.3 Ethernet 1000BASE-T (continued) The following tables show the pin assignment of the RJ45 Ethernet jacks: Table 29: Pinout Ethernet 1000BASE-T Connector Pin name Signal ENET1_A_P D1–...

  • Page 38: Can

    Block diagram CAN Both CAN interfaces on the MBa7x are directly connected to the CAN ports of the TQMa7x and made available at the 3-pin connectors X10 and X11. Both interfaces are galvanically isolated with a dielectric strength of 1 kV.
  • Page 39 User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page 32 4.2.4 CAN (continued) Table 31: Type of CAN connector Manufacturer / Number Description Phoenix Contact / MCV 1,5/3-G-3,5 3-pin housing, 160 V / 8 A, 3.5 mm pitch Table 32: Pinout CAN1 –...
  • Page 40 User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page 33 4.2.5 RS-485 120 Ω Galvanic RS-485 5-pin header TQMa7x UART 7 isolation Transceiver (X12) Figure 22: Block diagram RS-485 The TQMa7x UART7 interface is routed to an RS-485 transceiver (SP491), which provides the signals at the 9-pin D-Sub connector X12.
  • Page 41 User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page 34 4.2.5 RS-485 (continued) Table 37: Type of RS-485 connector Manufacturer / Number Description Phoenix Contact / MCV1,5/5-G-3,5 5-pin housing , 160 V / 8 A, 3.5 mm pitch Table 38: Pinout RS-485 –...

  • Page 42: Debug Interfaces Rs-232 / Usb

    Block diagram RS-232 / Debug The debug interface is implemented on the MBa7x as RS-232 and USB device interface. In both cases the UART6 interface of the TQMa7x is used. No software configuration is necessary. The interface is selected with the DIP switch S7, see Table 41.
  • Page 43 User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page 36 4.2.6 Debug interfaces RS-232 / USB (continued) Table 42: Pinout Debug RS-232, D-Sub-9 – X13 Signal 1, 4, 6, 9 RS-232_RXD RS-232_TXD RS-232_RTS# RS-232_CTS# DGND M1, M2...

  • Page 44: Lvds

    4.2.7 LVDS An LVDS display can be connected to the MBa7x (4× TX pairs). Since the i.MX7 processor does not have a native LVDS interface, the LVDS signals are generated by the SN75LVDS83B transceiver connected to the parallel LCD interface.
  • Page 45 User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page 38 4.2.7 LVDS (continued) Table 44: Type of LVDS connectors Connector Manufacturer / Number Description Hirose / DF19G-30P-1H Board-to-Cable FFC connector, 30-pin, 1 mm pitch Hirose / DF19G-20P-1H...
  • Page 46 User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page 39 4.2.7 LVDS (continued) Table 46: Pinout LVDS-CMD – X16 Signal Remark 12 V – 12 V – 12 V – DGND – DGND – DGND – –...

  • Page 47: Audio

    User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page 40 4.2.8 Audio Microphone 3.5 mm Jack SAI1 (X19) protection TQMa7x Line-In 3.5 mm Jack I2C2 Audio Codec (X20) Line-Out (optional headphone) 3.5 mm Jack protection (X21) Figure 28: Block diagram audio Audio input and outputs are provided by the audio codec TLV320AIC.
  • Page 48 User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page 41 4.2.8 Audio (continued) Table 48: Type of audio jack Manufacturer / Number Description Yamaichi / LJE3530K Jack 3.5 mm Table 49: Pinout Microphone – X19 Signal Remark AGND_AUDIO –...

  • Page 49: Sd Card

    The SD card slot is directly connected with the SDHC controller of the TQMa7x with a 4-bit interface. The SDHC controller in the TQMa7x supports the UHS-I mode, which is not used on the MBa7x. The maximum available mode is High-Speed. Booting from SD card is possible, see chapter 4.3.5.

  • Page 50: Mini Pcie

    Figure 32: Block diagram Mini PCIe A Mini PCIe slot (PCIe ×1) for full-size cards is available on the MBa7x. Pin assignment see Table 56. Any standard compliant Mini PCIe card can be used. An additional SIM card holder is installed to use a GSM card, see chapter 4.2.11.
  • Page 51 User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page 44 4.2.10 Mini PCIe (continued) Figure 34: Position of Mini PCIe Status LEDs, V6, V7, V8 Table 55: Mini PCIe interface, components Manufacturer / Number Description Nexus / 5020HB56R...
  • Page 52 User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page 45 4.2.10 Mini PCIe (continued) Table 56: Pinout Mini PCIe – X17 Signal Remark PCIE_WAKE# – VCC3V3_MPCIE See Table 54 – DGND – – VCC1V5_MPCIE See Table 54 –...

  • Page 53: Sim Card

    User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page 46 4.2.11 SIM card Figure 35: Position of SIM card – X18 Table 57: Type of SIM card Manufacturer / Number Description YAMAICHI / FMS006Z-2101-0 SIM card slot Table 58: Pinout SIM card –...

  • Page 54: Pcie Clock Generator

    PCIe clock generator The i.MX7 internal clock is not PCIe compliant. For this reason, a PCIe compliant clock can be generated on the MBa7x with a 9FGV0241AKILF clock generator as an assembly option. Figure 36, Figure 37 and Figure 38 show possible clock supplies.

  • Page 55: Smart Card X6

    Smart card X6 The smart card interface on the MBa7x supports Class B (3.0 V) and Class C (1.8 V) cards according to ISO/IEC 7816. It is not switched automatically between Class B and C, this can be done by software.

  • Page 56: 100 Mil Headers

    4.2.14 100 mil Headers All unused signals are routed to the headers X23, X24, X25 on the MBa7x, to permit a comprehensive evaluation of the TQMa7x modules. All headers are 60-pin with 100 mil pitch. The headers are positioned in such a way, that adaptor boards which additional electronics and connectors can be plugged in.
  • Page 57 User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page 50 4.2.14 100 mil Headers (continued) Table 62: Pinout Header 1 – X23 Group Signal Signal Group Power VCC12V VCC3V3 Power Power VCC5V VCC3V3 Power Power DGND DGND Power LCD.CLK...
  • Page 58 User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page 51 4.2.14 100 mil Headers (continued) Table 63: Pinout Header 2 – X24 Group Signal Signal Group Power VCC12V VCC3V3 Power Power VCC5V VCC3V3 Power Power DGND DGND...
  • Page 59 User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page 52 4.2.14 100 mil Headers (continued) Table 64: Pinout Header 3 – X25 Group Signal Signal Group Power VCC12V VCC3V3 Power Power VCC5V VCC3V3 Power Power DGND DGND...

  • Page 60: Diagnostic- And User Interfaces

    User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page 53 Diagnostic- and user interfaces 4.3.1 Diagnostic LEDs The MBa7x provides 22 diagnostic and status LEDs to indicate the system condition. Table 65: Meaning of diagnostic LEDs Function Reference...

  • Page 61: Navigation Buttons

    User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page 54 4.3.2 Navigation buttons On the MBa7x, three navigation buttons are connected to a port expander PCA9555. The port expander is interrupt-capable by signal PE1_INT#. TQMa7x PCA9555 Button S11...

  • Page 62: Boot-Mode Configuration

    LCD interface to a pin header and an LVDS transceiver. On the MBa7x this was only implemented for functional Figure. In the final design, the LCD interface should be connected as short as possible and without stubs to only one type of display.
  • Page 63 User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page 56 4.3.5 Boot-Mode configuration (continued) Figure 47: Position of Boot Mode DIP switches S1 to S4 The following tables describe the DIP switch settings for the different boot media.
  • Page 64 User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page 57 4.3.5 Boot-Mode configuration (continued) Table 67: Boot-Mode configuration DIP switches – S1, S2, S3, S4 DIP switch Signal eMMC SD card QSPI NOR Serial Downloader BOOT_MODE1 BOOT_MODE0...

  • Page 65: Buzzer

    PE1_INT# INT# Figure 48: Block diagram buzzer The MBa7x provides a buzzer. The buzzer is controlled via the PCA9555 port expander. A high level of the BUZZER signal activates the buzzer. Figure 49: Position of buzzer – N2000 Table 68:...

  • Page 66: Jtag

    The JTAG interface is routed to a 20-pin header (X22). The pull-ups for the lines TDI, TMS, TRST# and SRST# are assembled on the MBa7x. All signal lines use 3.3 V as a reference. The JTAG interface has no ESD protection.

  • Page 67: Software

    User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page 60 4.3.7 JTAG (continued) The following table shows the pin assignment of the JTAG connector. Table 70: Pinout JTAG – X22 Signal Dir. Remark JTAG.VREF 100 Ω in series to VCC3V3, use only as reference VCC3V3 0 Ω...

  • Page 68: Mechanics

    The MBa7x has a maximum height of approximately 26.4 mm. The MBa7x has six 4.3 mm holes for mounting in a housing and three 3.2 mm holes for mounting a heat sink. The MBa7x weighs approximately 240 grams without TQMa7x.

  • Page 69: Assembly

    User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page 62 Assembly Figure 53: Component placement top...
  • Page 70 User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page 63 Assembly (continued) Figure 54: Component placement bottom The labels on the MBa7x show the following information: Table 71: Labels on MBa7x Label Text MBa7x version, revision, tests performed...

  • Page 71: Safety Requirements And Protective Regulations

    10 % to 90 % Not condensing Protection against external effects Protection class IP00 was defined for the MBa7x. There is no protection against foreign objects, touch or humidity. Reliability and service life No detailed MTBF calculation was performed for the MBa7x.

  • Page 72: Environment Protection

    By environmentally friendly processes, production equipment and products, we contribute to the protection of our environment. To be able to reuse the MBa7x, it is produced in such a way, that it can be easily repaired and disassembled. The energy consumption of the MBa7x is minimised by suitable measures.

  • Page 73: Appendix

    User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page 66 APPENDIX 10.1 Acronyms and definitions The following acronyms and abbreviations are used in this document: Table 73: Acronyms Acronym Meaning Analog/Digital Converter Accord européen relatif au transport international des marchandises Dangereuses par Route...
  • Page 74 User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page 67 10.1 Acronyms and definitions (continued) Table 74: Further applicable documents (continued) Acronym Meaning MIPI Mobile Industry Processor Interface Multimedia Card MOZI Module extractor (Modulzieher) MTBF Mean (operating) Time Between Failures...

  • Page 75: References

    User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH Page 68 10.2 References Table 74: Further applicable documents Document Rev., Date Company i.MX 7Dual Family of Applications Processors Data Sheet, IMX7DCEC 2.0, 06/2016 i.MX 7Solo Family of Applications Processors Data Sheet, IMX7SCEC 2.0, 06/2016...
  • Page 76 TQ-Systems GmbH Mühlstraße 2 l Gut Delling l 82229 Seefeld Info@TQ-Group TQ-Group...

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