LT910 E Terminal User Manual Revision 1.
Important information This technical description contains important information for the installation and use of the LT910 E Terminal. Read it carefully before you start working with the LT910 E Terminal. We cannot be held responsible for material loss or personal injury that is due to non-compliance with the safety instructions. The warranty will be void in such circumstances.
Table of Contents Important information ...................................................................................................................................................... 2 1 2 3 4 General Information ................................................................................................................................................. 6 1.1 Contact for Support ..................................................................................................................
5.4 6 Using low power mode of the modem ........................................................................................................... 22 5.4.1 Enabling the low power mode ................................................................................................................ 22 5.4.2 Disabling the low power mode by user .................................................................................................. 23 5.4.
Table Overview Table 1: Abbreviation ........................................................................................................................................................ 7 Table 2: Documentation Change Log ................................................................................................................................ 8 Table 3: Feature Overview .................................................................................................................................
1 General Information This User Manual consists of the following chapters: Chapter Description 1 General Information provides basic information such as the conventions for the warning levels, applicable related documentations, used abbreviations, a revision history and contact information.
NOTICE Warnings against hazards that may result in material damage in case of non-observance. Indicates that the device can be damaged by electrostatic discharge. This note contains helpful suggestions or references to material not covered in the document. 1.3 Related Documentation Please consult the download zone of the Telic AG website for additional documents related to LT910 E, such as AT command manuals.
1.5 Revision History Revision Date Changes 1.0 20.02.
2 Product Description 2.1 Overview The pictures below show the mechanical design of the LT910 E Terminal along with the positions of the different connectors and mounting holes. The LT910 E Terminal case is made of durable PC/ABS plastic.
Please note the following: The terminal can be securely fitted into your application by using the mounting 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.
Figure 3: Drawing of the Terminal’s Housing 2.4 Product Features and Technical Data NOTICE Telic AG may, at any time and without notice, make changes or improvements to the products and services offered and / or cease 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 http://www.telic.de/en/contact-us to clarify the details of ordering terminal variants.
Category Connectors Features Details LEDs Type Approvals 1 GSM / LTE status + 2 configurable CE D-Sub (9-pin) 1x Female (RS232) USB Antenna 1x Mini-USB (USB 2.0) 1x Power + IOs (1x Analogue Input; 1x optional Output) 1x (FME Male) RS232 1x (Sub-D9 Female) USB 2.0 1x (Mini-USB) Analog Inputs 1x (RJ11 connector) Outputs 1x (RJ11 connector, optional) AT Command Set AT Command Set: Hayes Compliant, TS 27.005, 27.
2.5 Telic Certified Accessories NOTICE The pentaband antennas listed in this section are suitable both for use with GSM and LTE networks. Please check, though, which frequency bands your mobile network service provider supports specifically for LTE Cat-1. Eventually, you might need to purchase a dedicated antenna to cover the 2600 MHZ band. Please contact us if you require specific recommendations on suitable antennas to use. Art-Nr.
Art-Nr. Description 12004 RS232 cable (V.24 compliant); 1.5m for PC connection 12304 Mounting Bracket for DIN Rail; Terminal Mounting bracket for DIN Rail (rectangular) 12305 Mounting Bracket for DIN Rail; Terminal Mounting bracket for DIN Rail (straight) 12002 Power supply 230V AC / 12 VPC; 6pin RJ11 connector 12003 Power cable; 6pin RJ11 connector with open ends; 1.5 m 12301 Mini USB cable ~ 0.
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 If these instructions are ignored, Telic AG will not assume responsibility for any damages that are incurred.
Warning When using products which are exposed to electric voltage the valid regulations have to be observed. Always make sure that the device is disconnected from the power supply before opening it. You should only use tools on components, modules or devices if they are disconnected from the power supply and the electric charge, which may still be stored in some components inside the device, has been discharged.
When the SIM card hatch is opened, the SIM card connectors lie exposed under the SIM card holder. Caution! Do not touch these connectors! If you do, you may release an electrical discharge that could damage the modem or the SIM card. When designing your application, the SIM card’s accessibility should be considered. We always recommend that you have the SIM card protected by a PIN code. This will ensure that the SIM card cannot be used by an unauthorized person. 3.
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.2 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.
PIN Signal Direction Limits Description 5 DIG_OUT Output 5 - VCC 6 GND Input - (Optional) Digital Output VCC, max. 400 mA Negative power (ground) input and return path for TO_IN and EMERG_OFF Table 5: RJ11 Pin and Signals Description 4.2 Antenna Connector The antenna connector on the modem is assembled with an FME male coaxial jack.
PIN Signal Direction Limits Description 4 DTR Input Data terminal ready 5 GND - > + 4V < 0.8 V 0V 6 DSR Output Data set ready 7 RTS Input 8 CTS Output 9 RI Output > + 4V <-4V > + 2,4V < 0.8 V > + 4V <-4V > + 4V <-4V Ground connection Request to send Clear to send Ring indicator Table 6: Electrical characteristics of the serial port signals 4.4.
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 device is switched on but missing a SIM card, first switch off the modem and then insert the SIM card. Note that the device does not have a SIM card detect feature.
5.2 Configuration of the bit rate on the serial interface Please note that the module used in the terminal does not support autobauding. The configured data rate is 115200 baud. 5.3 Power cycle the modem There are two ways to switch off (power down) the modem as described below: EMERG_OFF to high level for t >1s on the RJ11 connector Turn off, or disconnect the power supply. 5.
NOTICE Enabling low power mode as described herein also deactivates the RS232 transceiver! 5.4.2 Disabling the low power mode by user Set the DTR control line from Low to High. Low-power mode should be exited automatically. After sending DTR from Low to High, the module doesn’t save power, but the module is saving power again after setting DTR from High to Low. The RS232 transceiver is activated immediately. AT channel is available immediately after changing DTR from Low to High.
5.6 Status LEDs (one yellow, one red) The red and yellow Status LEDs are under control of GPIO1 and GPIO2 of the LE910 EU1 module inside the Terminal. They can be controlled via AT commands. The default status of these two LEDs is off.
What do you want to do Send the AT command Check the current setting Device Response AT#RXDIV? Antenna Diversity is de-activated #RXDIV: 0,1 Antenna Diversity is activated #RXDIV: 1,3 De-Activate Antenna Diversity AT#RXDIV=0,0 5.8.2 Activating / Deactivating LTE Mode The terminal is configured by default with 2G / LTE mode activated (AT+WS46=30). The following commands can be used to modify the usage of mobile network technologies (refer also to Section 5.1.4.3.
6 Installation of the modem This chapter gives you advice and helpful hints on how to integrate the LT910 E 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 starting your integration work. 6.1 Where to install the modem There are several conditions which need to be taken into consideration when designing your application as they might affect the modem and its function.
When the unit is powered from a battery or a high current supply, connect a fast 1.25A fuse in line with the positive supply. This protects the power cabling and modem. 6.2.2 Securing the modem Before securing the modem take into account the amount of additional space required for the mating connectors and cables that will be used in the application. Where access is restricted, it may be easier to connect all the cables to the modem prior to securing it in the application.
6.3.5 Possible communications disturbances Possible communication disturbances include the following: Noise can be caused by electronic devices and radio transmitters. Path-loss occurs as the strength of the received signal steadily decreases in proportion to the distance from the transmitter. Shadowing is a form of environmental attenuation of radio signals caused by hills, buildings, trees or even vehicles.
