HT910 G Terminal User Manual Revision 1.
Important information This technical description contains important information for start up and use of the HT910 G Terminal. Read it carefully before you start working with the HT910 G Terminal. The warranty will be void should damage occur due to non-compliance with these instructions for use. We cannot accept any responsibility for consequential loss. We cannot be held responsible for material loss or personal injury that is due to incompetent use or noncompliance with the safety instructions.
In case those measurements with the opened housing are necessary, an isolating-transformer has to be integrated for safety reasons. Alternatively the voltage can be supplied by an appropriate power supply which complies with the safety regulations. All wiring work has to be done in a voltage free state only.
Table of Contents Important information ...................................................................................................................................................... 2 Safety Instructions ............................................................................................................................................................ 2 1 2 Mechanical Description ...............................................................................................................
4.1.4 4.2 Network and subscription ....................................................................................................................... 19 How to install the modem .............................................................................................................................. 19 4.2.1 Power supply ........................................................................................................................................... 19 4.2.2 Securing the modem ......
Table Overview Table 1: Pin Description .................................................................................................................................................. 10 Table 2: RJ11 Pin and Signals Description ....................................................................................................................... 10 Table 3: Examples Analog Input ..............................................................................................................................
1 Mechanical Description 1.
Please note the following: Mounting holes positioned at two of the corners make it possible to securely bolt the modem into your application. Keypad, display, microphone, speaker and battery are not part of the modem. The SIM card is mounted in the modem, accessible by the user under a lid without any tools. The pins and electrical characteristics or the modem’s various connectors are described in “2. Electrical Description” Information about the antenna connector is found in “2.
2 Electrical Description The modem uses the following industry standard connectors: RJ11 6-way (power/IO connector) – Not connected for USB power variant Mini USB (for data) – Also the power connector for USB power variant SIM card reader FME male coaxial jack (antenna connector) Sub-D female socket, 9 pin (RS232 serial port) 2.1 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.
Pin 1 2 3 4 5 6 Description VCC ADC_IN (not applicable in USB Power variant) HR_IN TO_IN optional - DIG_OUT GND Table 1: Pin Description PIN Signal Direction Limits Description 1 VCC Input 5 – 32V Positive power input, DC 2 ADC_IN or not connected Input 0 – 32V - Analogue Input 3 HR_IN Input 5 – 32V 4 TO_IN Input 5 – 32V 5 DIG_OUT / or not connected Output 5 – VCC max. 32V 6 GND Input - Active high control line used to switch off VIH > 5V, VIL < 0.
2.1.2 Digital Output switched voltage is VIN; high side switch max. Output 400mA short circuit protected ESD protected under full control of embedded application The following command has to be used to initialize and to set the digital output: AT#GPIO=6,1,1 output switched on AT#GPIO=6,0,1 output switched off 2.
Pin Signal 1 VUSB 2 D- 3 D+ 4 not connected 5 GND Table 4: Mini USB Pin description 2.3 Antenna Connector The antenna connector allows transmission of radio frequency (RF) signals between the modem and an external customer-supplied antenna. The modem is fitted with a 50Ω, FME male coaxial jack.
2.4 SIM card reader The HT910 Terminal is fitted with a SIM card reader designed for 3V SIM cards. It is the flip-up type which is lockable in the horizontal position and is accessed through a removable panel. 2.5 RS232 Serial Port The modem supports a standard RS232 serial interface (EIA/TIA 574) via its 9 pin Sub-D connector, shown below.
2.5.3 Control Signals – RTS, CTS, DTR, DSR Request to Send (RTS) RTS is used to condition the DCE for data transmission. The default level is high by internal pull up. The exact behaviour of RTS is defined by an AT command. Software or Hardware control can be selected. Hardware flow is the default control. The application must pull RTS low to communicate with the modem. The modem will respond by asserting CTS low, indicating it is ready for communication.
3 Operation 3.1 Switching ON the modem There are two ways to switch on the modem, once power is applied. assert TO_IN to high level for > 5s activate the RS232 control line DTR The modem is fully operational after 4 seconds. Logging onto a network may take longer than this and is outside the control of the modem. The modem can be configured to start up at the time power is applied by permanently tying power connector signals TO_IN (pin 4) and VCC (pin 1) together.
3.2 Switching OFF the modem There are two ways to switch off (power down) the modem as described below: use the AT#SHDN command; DTR permanently to low (0,8V) HR_IN to high level for t > 5s A delay of up to 10s is experienced as the modem logs off the network 3.3 Optional Low Power Mode In addition to turning the device completely off the terminal can placed into a low power mode while maintaining connectivity.
These LEDs can be controlled e.g. by an external microcontroller via at-commands issued to the terminal via the serial RS232 interface. They can be used for signalling any useful status of the external application such as: error indication status of communication (GPRS, SMS, CSD, etc.
CEP AG may refuse warranty claims where evidence of product misuse is found. 3.7 SIM card precautions Before handling the SIM card in your application, ensure that you are not charged with static electricity. Use proper precautions to avoid electrostatic discharges. 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.
4.1.2 GSM Signal strength The modem has to be placed in a way that ensures sufficient GSM signal strength. To improve signal strength, the antenna can be moved to another position. Signal strength may depend on how close the modem is to a radio base station. You must ensure that the location, at which you intend to use the modem, is within the network coverage area.
4.3 Antenna 4.3.1 General The antenna is the component in your system that maintains the radio link between the network and the modem. Since the antenna transmits and receives electromagnetic energy, its efficient function will depend on: the type of antenna (for example, circular or directional); the placement of the antenna; communication disturbances in the vicinity in which the antenna operates.
4.3.5 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.
4.5 CEP Certified Accessories Product Description Power supply 230V AC / 12 VPC 6pin RJ11 connector Power cable 6pin RJ11 connector with open ends Minimag Antenna FME female, 900/1800 MHz Stub Antenna FME female, 900/1800 MHz Rectangular Antenna FME female, Quad-band Roof-mount antenna FME female waterproof, 900/1800 MHz RS232 cable 1.5m for PC connection Table 8: Accessoires List Please contact your distributor or CEP AG for availability or check CEP’s webpage www.cepag.de.
5 Technical Data Product features: UMTS Power class 3 (24dBm) GSM 850/900 Power class 4 (33dBm) GSM 1800/1900 Power class 1 (30dBm) GSM 850/900 Power class E2 (27dBm) GSM 1800/1900 Power class E2 (26dBm) Control via AT commands according to GSM 07.05, 07.07 and proprietary Telit Serial Port Multiplexer GSM 7.10 SIM Access Profile Supply voltage range: 5 – 32 V/DC TCP/IP stack access via AT commands Sensitivity: o -107 dBm (typ.)@ 850/900 MHz o -106 dBm (typ.
Data: GPRS Class 12 EDGE Class 33 o Max 236.8 kbit/s uplink o Max 296 kbit/s downlink UMTS 384 kbits uplink/downlink HSPA category 6 in uplink and up to category 14 in downlink o Uplink HSUPA 5.76Mbit/s o Downlink Up to 7.2 Mbit/s o (Optional) Penta Band UMTS (HSDPA 21.
6 Abbreviations Abbreviation Explanations CBM Cell Broadcast Message CBS Cell Broadcast Service CSD Circuit Switched Data DCE Data Circuit Terminating Equipment DTE Data Terminal Equipment DTMF Dual Tone Multi Frequency EFR Enhanced Full Rate EMC Electro-Magnetic Compatibility ETSI European Telecommunication Standards Institute FR Full Rate GPRS General Packet Radio Service GSM Global System for Mobile Communication HR Half Rate HSCSD High Speed Circuit Switched Data ITU-T ME
7 Compliance Statements 7.
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8 Service and Support To contact customer support please use the contact details below: Customer Support CEP AG Raiffeisenallee 12b 82041 Oberhaching Germany E-mail: support@cepag.de or Tel. +49-89-450 292 – 11 Information about CEP AG, products and accessories is available on the following web site: http://www.cepag.de. Please contact us via e-mail if you miss anything on the web and we will provide it to you personally via e-mail.
9 Documentation Change Log Revision Date Changes Rev 1.0 01.07.2013 Initial Version Rev. 1.2 21.03.2014 Update Document Layout Rev. 1.3 27.08.2014 Updated Section 7 Rev. 1.4 20.01.2015 Added new sections 4.3.6 & 4.3.7.
