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NT910G

User Manual - Telic AG

Pg 15

4

Electrical Description

The modem uses the following standard connectors:

▪

RJ11 6-way (power + 1 analogue input + 1 optional output)

▪

Mini USB (for data)

–

Also the power connector for the USB powered variant (optional)

▪

SIM card reader

▪

FME male coaxial jack (antenna connector)

▪

Sub-D female socket, 9 pin (RS232 serial port)

4.1

Power Connector

An RJ11 6-way connector, as shown and described below, serves as a means of supplying and
controlling DC power to the modem. The use of an external power supply is necessary as the USB port
is not intended to be used as power source.
The supply voltage VCC required by the modem is 5V - 32V DC. Please note that applying the supply
voltage does not switch the modem on. To do so an additional active-high control signal, TO_IN, must
be applied for > 1 second.
Please see chapter 5.1 Switch ON the modem for further important details about TO_IN and power
supply requirements, especially if TO_IN is applied in parallel to VCC.

VCC and GND are reverse-polarity and over-voltage protected as long as the antenna

interface and the user’s application are not used or connected to separate grounds.

Figure 4: RJ11 Pin Connector

Pin

Signal

Direction

Limits

Description

1

VCC

Input

5

–

32V

Positive power input, DC

2

ADC_IN

Input

0-32V

Analogue Input

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Содержание NT910G

Страница 1: ...NT910G User Manual 31 01 2020 Release 1 0 ...

Страница 2: ...al precautions 13 3 4 SIM card precautions 14 3 5 Antenna precautions 14 3 6 Storage Conditions 14 4 Electrical Description 15 4 1 Power Connector 15 4 2 Antenna Connector 16 4 3 SIM card reader 17 4 4 RS232 Serial Port 17 4 4 1 Serial Data 17 4 5 Mini USB Connector 18 5 Operation 18 5 1 Switch ON the modem 18 5 2 Configuration of the bit rate on the serial interface 19 5 3 Power cycle the modem 1...

Страница 3: ...stall the modem 23 6 1 1 Environmental conditions 23 6 1 2 GSM Signal strength 24 6 1 3 Connection of components to the NT910 G Terminal 24 6 1 4 Network and Subscription 24 6 2 How to install the modem 24 6 2 1 Power supply 24 6 2 2 Securing the modem 24 6 3 Antenna 25 6 3 1 General 25 6 3 2 Antenna type 25 6 3 3 Antenna placement 25 6 3 4 The antenna cable 25 6 3 5 Possible communications distur...

Страница 4: ...ct information 2 Product Description provides a brief overview about the mechanical specification of the product including size and weight as well as an overview of the functions and features of the device as well as the available accessories 3 Safety and Product Care addresses the audience for this manual the indented use of this device and safety related information important to read before usin...

Страница 5: ...note contains helpful suggestions or references to material not covered in the document 1 4 Related Documentation Please consult the download zone of the Telic AG website for additional documents related to LT910 E such as AT command manuals Note that such type of documents can be accessed online only after you have registered on our website and agreed with our terms of use Please follow this link...

Страница 6: ... Short Message Service TA Terminal Adapter TE Terminal Equipment TS Telecom Services Table 1 Abbreviation 1 6 Revision History Revision Date Changes 1 0 31 01 2020 Initial version Table 2 Documentation Change Log 2 Product Description 2 1 Overview The pictures below show the mechanical design of the NT910G Terminal along with the positions of the different connectors and mounting holes The NT910G ...

Страница 7: ...ng holes positioned at the two corners of the device The SIM card can be inserted into the modem without the need for any tools Section 4 Electrical Description 2 Electrical Description describes the pins and electrical characteristics or of the modem s terminal s various connectors are described in Section 4 2 Antenna Connector 2 3 Antenna Connector provides information about the antenna connecto...

Страница 8: ...rtified Accessories 2 2 Identification On the bottom of the device you will find the type label 2 3 Physical Dimensions and Weight Overall dimensions 77 x 66 x 26 mm Weight 91g 1 Note that the serial number consists of a 4 digit product ID followed by the device s IMEI Label Description S N Serial number1 Serial number IMEI International Mobile Equipment Identity HW Rev Hardware Revision Number CE...

Страница 9: ...producing or commercializing them NOTICE Optional Features Features identified as Optional in this document are not assembled by default Please contact our Sales Team at https www telic de en contacts contact us to clarify the details of ordering terminal variants Category Features Details Air Interface GSM Frequency Bands LTE Frequency Bands B2 1900 B3 1800 B5 850 B8 900 B1 2100 B2 1900 B3 1800 B...

Страница 10: ...M Application Toolkit SAT Release 99 TCP IP Stack TCP UDP SSL Pv4 IPv6 stack with TCP and UDP protocol SW Update Serial USB FOTA Power Management Voltage Range 5V 32V direct current Hardware Characteristics Operating Temperature 30 C to 75 C Dimensions 77 x 66 x 26 mm Weight 91g Table 3 Feature Overview 2 5 Telic Certified Accessories NOTICE The pentaband antennas listed in this section are suitab...

Страница 11: ...NT910G User Manual Telic AG Pg 10 ...

Страница 12: ...e 3 Safety and Product Care This device has been designed in accordance with industrial standards manufactured with utmost care using high quality materials and thoroughly tested Nevertheless its use may constitute a risk to persons or cause material damage The following safety instructions must be followed to ensure the safety of users and of the device NOTICE ...

Страница 13: ...connectors and avoid touching the components on the board Always ensure that the use of the modem is permitted The modem may present a hazard if used in the proximity of personal medical electronic devices As a rule the modem must not be used in hospitals airports or planes Never use the modem at a gas station refueling point blasting area or in any other environment where explosives may be presen...

Страница 14: ...ly which complies with the safety regulations All wiring work must be done in a voltage free state only 3 3 General precautions The NT910 G Terminal as a stand alone item is designed for indoor use only To use outside it must be integrated into a weatherproof enclosure Do not exceed the environmental and electrical limits as specified in Section 2 4 Product Features and Technical Data Avoid exposi...

Страница 15: ...se with one single antenna only It does not support antenna diversity Never connect more than one modem to a single antenna The modem can be damaged by radio frequency energy from the transmitter of another modem Like any mobile station the antenna of the modem emits radio frequency energy To avoid EMI electromagnetic interference you must determine whether the application itself or equipment in t...

Страница 16: ... port is not intended to be used as power source The supply voltage VCC required by the modem is 5V 32V DC Please note that applying the supply voltage does not switch the modem on To do so an additional active high control signal TO_IN must be applied for 1 second Please see chapter 5 1 Switch ON the modem for further important details about TO_IN and power supply requirements especially if TO_IN...

Страница 17: ...32V Positive edge triggered signal used to switch on the modem VIH 5V VIL 0 5V Power on t 1s after VCC available VIH Voltage Input high VIL Voltage Input low 5 DIG_OUT Output 5 VCC Optional Digital Output VCC max 400 mA 6 GND Input Negative power ground input and return path for TO_IN and EMERG_OFF Table 5 RJ11 Pin and Signals Description 4 2 Antenna Connector ...

Страница 18: ...the external application or computer as the data terminating equipment DTE The maximum data rate to communicate with the NT910 G Terminal is 921 6 kBaud Pin Signal Direction Limits Description 1 DCD Output 4V 4 V Data carrier detect 2 RD Output 4V 4 V Received data 3 TD Input 2 4V 0 8 V Transmitted data 4 DTR Input 4V 0 8 V Data terminal ready 5 GND 0 V Ground connection 6 DSR Output 4V 4 V Data s...

Страница 19: ...are available for download from the Telic AG website for registered users only Figure 5 Mini USB Type A B connector for NT910 G 5 Operation 5 1 Switch ON the modem NOTICE To ensure correct operation of the Terminal please ensure that a SIM Card has been inserted into the terminal prior to switching it on Do not insert a SIM card into the device while it is switched on If you find out that the devi...

Страница 20: ...cases in which the modem might not recognize the power up signal This is no failure of the modem itself the same would apply to almost any electronic device that provides a separate power on or reset signal Possible cases are the following Large capacitors in your power supply which will lead to slow leading and falling edges issue does not apply with modern stabilized switching regulator power ad...

Страница 21: ... mode need to be considered There are no special precautions required when using a serial interface that is fully compliant with the RS232 specification V 24 both on the DTE and DCE You can proceed as described in the following sub sections If the DTR line is not available on the DTE the M2M application and you do not need to use the low power mode then the DSR pin on DCE side should be looped wit...

Страница 22: ...again Set RTS to Low and then to High for a working communication The device automatically jumps back to AT CFUN 1 when the RTS line is set high if disabled before set the status LED back to alternate timings NOTICE The user must set DTR line to high in order to activate the RS232 transceiver this is not done automatically 5 5 Operating states green LED The modem has a green power up LED as depict...

Страница 23: ...rminal via the RS232 interface They can be used to signal any useful status of the external application such as error indication status of communication LTE GPRS SMS CSD etc status of network to simulate network LED quality of service 5 7 Current consumption Measurements The following table shows you the power consumption of the Terminal in different modes Status mA 5V mA 12V mA 24V mA 32V NT910 G...

Страница 24: ...encies specified in Section 4 2 you may configure a specific frequency band to be used with the AT command AT BND 6 Installation of the modem This chapter gives you advice and helpful hints on how to integrate the NT910 G Terminal into your application from a hardware perspective Please read the information given in Section 2 Product Description and then read the information in this section before...

Страница 25: ... designed or installed external components may cause radiation limits to be exceeded For instance improperly made connections or improperly installed antennas can disturb the network and lead to malfunctions in the modem or equipment 6 1 4 NETWORK AND SUBSCRIPTION Before your application is used you must ensure that your chosen network provides the necessary telecommunication services Contact your...

Страница 26: ...Make sure that the selected antenna meets the requirements specified in Section 4 2 Antenna Connector 6 3 3 ANTENNA PLACEMENT The antenna should be placed away from electronic devices or other antennas The recommended minimum distance between adjacent antennas operating in a similar radio frequency band is at least 50cm If signal strength is weak it is useful to face a directional antenna at the c...

Страница 27: ...itter Shadowing is a form of environmental attenuation of radio signals caused by hills buildings trees or even vehicles This can be a particular problem inside buildings especially if the walls are thick and reinforced Multi path fading is a sudden decrease or increase in the signal strength This is the result of interference caused when direct and reflected signals reach the antenna simultaneous...

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