CT63 E Terminal User Manual
Contents
1. kak kak ak ak aa 15 3 3 1 Enabling the low power 1 1 66 15 3 32 Disabling the low power mode 1 1 kk ak kk ak kak a ka 15 3 3 3 Disable the low power modes by incoming GSM activity 6 15 3 4 Operating states 2 7 2 1 1 1 4 kk a ka kk ak aka kk ak se sea ak ak ka ka kak aa 15 3 4 1 Power up LED green LED in the middle 4 1 6 6 6 kak kaka kak kak a kk ka 15 GR COM 17 TO 17 4 2 General precautions esee eene ennemis neus se saeua asus aeu rea ns 17 do SIN card WA 18 Gt ANNA PI AAA 18 5 Quick Start Installation of the 4 kaka aka aka aa aka a ka kaka ka kaka ka aka kak ka nnns 20 5 1 Where to install the modem aa ya yk kk aka ka ka ka kk kk kk a kk ak ka a a ka kk a 20 5 1 1 Environmental conditions 20 51 2 GSM Signal strength d SRI PME 20 5 1 3 Connections of compo2. nnne nnne nnne sn ak ka aka 11 Table 4 Electrical characteristics of the serial port 5 11 Tables MIN USB PiN FOC AO lu 13 Table 6 Operating states of the power up LED 0 nemen kaka aka ka nnn nnne nenne nnn nens 16 Table 7 Power consumption in idle and low power nennen nnn nnns 17 Table 8 Accessories sabre ia 26 Table 9 Abbreviation 28 Table 10 Documentation Change EOG uuu Ia 31 Figure Overview Figure 1 Connector on rear side of the kk nenne nenne kaka kak ka nnns 7 Figure 2 Connectors front side of the Terminal k l kk kk kk kk kk kk kak kk kaka kak kaka ka kk a ka kk a aka 7 Figure 3 Schematic of the Terminal s Housing 0 a ka kk a nnn nns 8 Figure 4 RJ11 PI COMIC CUO 9 Figure 5 Mini USB 1 0 4 kaka kaka aka kk ak a kak ka kak kk a kak kk kk kk ak kak ka aka 13 TERMINALS 1 Mechanical Description 1 1 Overview The pictures below show the mechanical design of the CT63 E
3. TERMINALS CT63 E Terminal User Manual Revision 1 1 pa c Za CEP TERMINALS Important information This technical description contains important information for start up and use of the CT63 E Terminal Read it carefully before you start working with the CT63 E 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 non compliance with the safety instructions The warranty will be void in such circumstances The CT63 E Terminal contains highly integrated components which can be damaged by electrostatic discharge if the user would open the housing CEP preserves the right to change the included information without notice and doesn t take responsibility for errors in the document and or missing information Therefore only touch the CT63 E Terminal on the housing or connectors and avoid touching the components on the board Safety Instructions When using products which are exposed to electric voltage the valid regulations have to be observed Before opening of a device always pull the mains adapter or make sure that the device is disconnected from the power supply You should only use tools on components modules or devices if they are disconnected from the power supply a
4. ON the modem There are two ways to switch on the modem once power is applied assert TO IN to high level for gt 1s activate the RS232 control line 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 In this case DTR must be used to switch the modem on again after it has been switched off or reset while power is still applied DTR must be cycled from low to high The TO IN signal requires a positive edge a sharp signal transition from low to high to turn the modem on This transition should be a rising signal from OV GND to VCC or at least a large fraction of that voltage range and must be applied at the same time as VCC or after it Very slow transitions significantly slower than many milliseconds or very small transitions e g only few volts instead of OV to VCC will not turn on the module since they are not considered to be a positive edge Although this will not be an issue in almost all typical applications of the modem please consider following points 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 adaptors AND TO IN tied in parallel to VCC instead
5. 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 It is necessary to connect an external power supply since the available power on the USB port is not sufficient to run the modem The supply voltage VCC required by the modem is 5V 32V DC Application of the supply voltage does not switch the modem on To do so an additional active high control signal TO_IN must be applied for gt 1 second Please see chapter 3 1 Switching 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 This does not apply for the GND on the antenna connector if this coax GND Shield are connected to your applications group plane Ze NNN PIN gt 654 3 21 Figure 4 RJ11 Pin Connector PF 2 2 BESE TERMINALS 1 VCC 2 3 EMERG_OFF 44 TO_IN 5 6 GND Table 1 Pin Description DENIM A Input 5 32V Positive power input DC 2 Not connected Not Not Not connected connected connected 3 EMERG OFF Input 5 32V Active high control line used to switch off VIH gt 5V VIL lt 5V Power off t 21s 4 TO IN Input 5 32V Positive edge triggered e signal used to switch on the modem VIH gt lt 0 5V Power on t gt 1 5 Not connected Not Not
6. ready to transmit data The default level is high You can define the exact behaviour of CTS through an AT command can select software or hardware flow control Data Terminal Ready DTR DTR indicates that the DTE is ready to transmit and receive data It also acts as hardware hang up terminating calls when switched high The signal is active low You can define the exact behaviour of DTR with an AT command The DTR line can also be used to switch on the modem when activated for 0 2 seconds The DTR line must be deactivated prior to switching off the modem to ensure it switches off powers down correctly Data Set Ready DSR An active DSR signal is sent from the modem to the application DTE to confirm that a communications path has been established DSR has two modes of operation settable using the AT command AT amp S Data Carrier Detect DCD DCD indicates that the DCE is receiving a valid carrier data signal when low You can define the exact behaviour of DCD with an AT command Ring Indicator RI RI indicates that a ringing signal is being received by the DCE when low You can define the exact behaviour for RI with an AT command 12 TERMINALS 2 8 Mini USB audio interface Mini LISB Type 1 2 3 4 5 Female Receptacle Figure 5 Mini USB Type A B connector 1 MIC 2 EAR 3 MIC 4 EAR 5 not connected Table 5 Mini USB Pin Allocation 13 3 1 Operation Switch
7. without notice make changes or improvements to the products and services offered and or cease producing or commercializing them 30 TERMINALS 11 Documentation Change Log u Rev 0 5 06 14 2013 First Official Release Rev 1 1 21 03 2014 Update Document Layout Table 10 Documentation Change Log 31
8. Not connected connected connected 6 GND Input Negative power ground input and return path for TO_IN and EMERG_OFF Table 2 RJ11 Pin and Signals Description Antenna Connector The antenna connector allows transmission of radio frequency RF signals between the modem an external customer supplied antenna The modem is fitted with a 500 FME male coaxial jack Output Power 2 Watt Peak Class 4 GSM 900 MHz 1 Watt Peak Class 1 GSM 1800 MHz Description of recommended antenna parameters The antenna that the customer chooses to use should fulfil the following requirements 10 gt E d k 2 YA p Mm Frequency range GSM 900 1800 MHz Bandwidth 80 MHz in EGSM 90 Gain lt 3dBi Impedance 50ohm Input power gt 33 dBm 2W peak power in GSM VSWR recommended lt 2 Table 3 Recommended antenna parameters 2 3 SIM card reader The CT63 E Terminal is fitted with a SIM card reader designed for 1 8V and 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 4 RS232 Serial Port The modem supports a standard RS232 serial interface via its 9 pin Sub D connector shown below In line with serial communication terminology the CT63 E Terminal should be considered as the data circuit terminating equipment DCE and the external application or computer as the data terminating equipment DTE The maximum baud rate to communicate w
9. Terminal along with the positions of the different connectors and mounting holes The CT63 E Terminal case is made of durable PC ABS plastic mounting Access to holes SIM card holder GT864 E analogue Dots PU DANI KA audio connector GT864 E Figure 1 Connector on rear side of the Terminal 3 status LEDs RS232 connector FME antenna connector Figure 2 Connectors on front side of the Terminal 1 2 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 SIM card is mounted 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 3 Antenna Connector Physical Dimensions and Weight Overall dimensions 77 x 67 26 mm Weight approx 1009 D ha L p M N 99 20 351 20 3 i IN 2 531 V i 2 254 J x 3 Figure 3 Schematic of the Terminal s Housing 2 1 Electrical Description The modem uses the following standard connectors RJ11 6 way power connector Mini USB SIM card reader FME male coaxial jack antenna connector Sub D female socket 9 pin RS232 serial port
10. cables to the modem prior to securing it in the application Securely attach the CT63 E Terminal modem to the host application using two 3mm diameter pan head screws Antenna 5 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 In the sections below issues concerning antenna type antenna placement antenna cable and possible communication disturbances are addressed In any event you should contact your local antenna manufacturer for additional information concerning antenna type cables connectors antenna placement and the surrounding area You should also determine whether 21 pa xwi Za CEP TERMINALS the antenna needs to be grounded or not Your local antenna manufacturer might be able to design a special antenna suitable for the application 5 3 2 Antenna type Make sure that you choose the right type of antenna for the modem Consider the following requirements the antenna must be designed for the one of the frequency bands in use please ask your network provider for more information o GSM 850 900 MHz o GSM 1800 1900 MHz the impedance of
11. e range 5 32 V DC TCP IP stack access via AT commands Sensitivity 107 dBm typ 900 MHz 106 dBm typ 1800 MHz Overall dimensions excluding connectors 77 x 67 x 26mm Weight ca 100g ROHS compliant Temperature range 40 to 80 C Operational 40 to 85 C Storage temperature Interfaces Sub D female 9 pin connector for RS232 communication RJ11 Power 5 32 Volt DC Antenna 50 Ohm male SIM card reader 3V interface Mini USB audio Interface Approvals Full type approved conforming with R amp TTE directive approval SMS Point to Point mobile originated and mobile terminated SMS Concatenated SMS supported SMS cell broadcast Text and PDU mode Circuit switched data transmission Asynchronous circuit switched Data CSD up to 9 6 kbps V 110 GPRS Data GPRS Class 10 Mobile station class GPRS Coding Scheme 1 4 GSM supplementary Call forwarding 24 TERMINALS Call barring Call waiting and hold Calling Line Identification Presentation CLIP Calling Line Identification Restriction CLIR Unstructured supplementary Services Mobile Originated Data USSD Closed user group Internet Protocol Embedded TCP IP stack including TCP IP UDP SMTP FTP protocol Additional Features SIM phonebook Fixed dialling number FDN Real time clock Network LED support IRA character set Jamming detec
12. ecommend 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 Antenna precautions If the antenna is to be mounted outside consider the risk of lightning Follow the instructions provided by the antenna manufacturer 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 the applications proximity needs further protection against radio emission and the disturbances it might cause Protection is secured either by shielding the surrounding electronics or by moving the antenna away from the electronics and the external signals cable 18 TERMINALS modem and antenna may be damaged if either come into contact with ground potentials other than the one in your application Beware ground potential are not always what they appear to be 19 pa xwi Za CEP TERMINALS 5 Quick Start Installation of the modem This chapter gives you advice and helpful hints on how to integrate the CT63 E Terminal into your application from a hardware perspective Please read the information given in Safety and Product Care page 10 and then read the information in
13. he housing 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 aerate van Ara 2 SA 2 Mechanical Description 7 un 0 7 H te p k kile p k 7 1 2 Physical Dimensions and 1 HS EE ak a ka 8 2 Electrical Description 9 C ele Fo 9 22 Z OS O S ky yekayek ea dka xelke re wena ll akun awana khuya akay An aa 10 27 i rrrUE E e 11 24 PO RU aya unu kasus 11 25 MEE Ebo 8 12 2 6 Serial Data St al 12 2 7 Control Signals RTS CTS DTR DSR DCD 12 2 8 Mini USB audio interface 13 14 s HO Au uuu usus samay AA AAA AAA AA AAA 14 3 2 Switch OFF the MOdeMm wswswawa ene 15 3 3 Using low power mode of the modem 6 kak
14. ith the CT63 ETerminal is 230400 kbit s u gt 4V Output lt 4V Data carrier detect 2 RD Output Received data 3 TD Input 4 3 Transmitted data 4 DTR Input d 4 Data terminal ready 5 GND OV Ground connection 6 DSR Output T MM Data set ready 7 RTS Input j s Request to send 8 CTS Output 7 E Clear to send 9 RI Output en a Ring indicator Table 4 Electrical characteristics of the serial port signals 11 2 5 2 6 ZA Serial Data The modem supports the standard data character format of Programmable baud rate 300bps to 230 400bps Auto configuration mode with auto baud 1 200bps to 230 400bps Multiplex ability according to GSM 07 10 Multiplexer Protocol Serial Data Signals Serial Data From Modem RD RD is an output signal that the modem uses to send data to the application Serial Data To Modem TD TD is an input signal used by the application to send data to the modem Control Signals RTS CTS DTR DSR DCD Reguest 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 Clear To Send CTS CTS indicate that the DCE is
15. mi TF Our product CT63 E is based on the GSM module BGS2 E from the manufacturer Cinterion Wireless Modules GmbH The GSM module of the manufacturer Cinterion Wireless Modules GmbH used here has been tested by the company CETECOM ICT Services GmbH in Saarbr cken Germany The conformity of the module BGS2 E with the essential requirements of the European Directive 1999 5 EC has been verified against the following harmonized standards Health and Safety IEC 60950 2005 EN 60950 2006 A11 2009 EC Council Recommendation 1999 519 EC EMC EN 301 489 1 v1 8 1 EN 301 489 7 v1 3 1 All AC DC adapters supplied by CEP AG comply with the standards CE EN 60950 2009 CEP AG Cellulare Produkte Hypo Vereinsbank Sitz der Gesellschaft 82041 Oberhaching Aufsichtsratsvorsitzende Dr Helene Prigge BLZ 700 202 70 HRB 143723 AG M nchen Vorstand Dr Ditmar Prigge Vorsitzender Kto 80 84 1370 UST ID DE813494442 29 TERMINALS TERMINALS 10 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 CEP AG may at any time and
16. ming GSM activity The RTS control line is still at a low level GSM module is called or receives an SMS Low power mode is exited automatically RS 232 transceiver is activated immediately AT channel is available again after 37ms If activated by a call the text ring is transmitted via the serial interface The RTS control line on the DB 9 should be set from Low level to High level AT communication with the GSM module is now available If applicable send AT command AT CFUN 1 to remain in normal mode 3 4 Operating states LEDs 3 4 1 Power up LED green LED in the middle The modem has a green power up LED as depicted below which is used to indicate various operating states These states are described in following table 15 TERMINALS Operating state of CT63 E Terminal Power up LED state Device off Permanently off net search not registered Fast blinking registered full service Slow blinking A call is active Permanently on Table 6 Operating states of the power up LED 16 4 Power consumption The following table shows you the power consumption of the CT63 E in different modes averaged over a 1 min interval M CT63 E idle mode 20 CT63 E low power mode 2 Table 7 Power consumption in idle and low power mode Safety and Product Care Please read the information in this section and the information in Installation of the Modem before starting your integrati
17. nd the electric charge which may still be stored in some components inside the device has been discharged All cables and wires which are energized and connected to the device the module or components have to be checked regularly for any damage of the isolation shield or fractures of the cables If the supply cables are visibly damaged the device has to be taken out of operation immediately until the faulty cable has been exchanged When using components or modules it is necessary to strictly observe the specification given in the corresponding description of these components If a description for a private end customer 2 x Ga 5 TERMINALS not clearly states which electric data is valid for a component or a module how to wire the device which external components or additional devices can be connected or which parameters these components are allowed to have a specialist must be contacted Before putting a device into operation it has to be clarified whether this device or module is meant for the field of application In case of doubt ask specialists or the manufacturer of the device Please note that we are not responsible for any errors in usage or connection Therefore we cannot accept any responsibility for consequential loss Devices which operate with gt 35 Volt have to be connected by a specialist Before putting the device into operation it should be checked that there is no current leakage on t
18. nents to CT63 E Terminal 66 20 5 1 4 Network and Subscription kak kaka kaka aka kk aka k kk ak a nene nnn ak kk ak 21 52 u uuu 21 21 SAA 21 90 AO wa 21 8592 e r r r r r r 21 332 AMENNA YPE y m 22 5 33 Antenna placement ccccecscseeecsenececnenecesnenscesnenecesneneeeseeneeeseenseuseeneeeseeuseuseeunanseeunanseeaes 22 2555 22 5 3 5 Possible communications ee kaka kaka kaka ka nnn kk ka aa 22 ee Da 24 FCCC SSCS 26 ala a ara awae e e e aa 27 9 Mark of 2099en 0 0 00 eeDeDeDDoDoroerraacrrmrmrmr_r_r__w_ _eamm nn iaia khu 29 10 Service and ii AA ha WE REMA k k kr R NAN bii W E 30 11 Documentation Change Log 31 Tape DESC AA 10 Table 2 RJ11 Pin and Signals 10 Table 3 Recommended antenna parameters
19. nside the modem that can be serviced by the user If you attempt to dismantle the modem you may invalidate the warranty The CT63 E Terminal must not be installed or located where the surface temperature of the plastic case may exceed 85 C All cables connected to the CT63 E Terminal must be secured or clamped immediately adjacent to the modem s connectors to provide strain relief and to avoid transmitting excessive vibration to the modem in the installation Ensure the cables supplying power audio headset and input cable to the CT63 E Terminal does not exceed 3 metres To protect power supply cables and meet the fire safety requirements 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 Do not connect any incompatible component or product to the CT63 E Terminal CEP AG may refuse warranty claims where evidence of product misuse is found 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 When designing your application the SIM card s accessibility should be taken into account We always r
20. obile Equipment Mobile Originated Mobile Station Mobile Terminated Protocol Data Unit Radio Link Protocol Radio Frequency Real Time Clock Subscriber Identity Module Short Message Service Terminal Adapter 2 Telecommunications Abbreviation Explanations TS VSWR TERMINALS Terminal Equipment Telecom Services Voltage Standing Wave Ratio Table 9 Abbreviation 28 _ 9 Mark of Conformity The CT63 E Terminal will carry the following certificates CEP AG Cellulare Produkte Raiffeisenallee 12b 82041 Oberhaching Aktiengesellschaft Telefon 089 450292 0 Cellulare Produkte Telefax 089 450292 CE Declaration of Conformity Hereby we declare that our product CT63 E is in conformance with the EU directives standards DIN EN 55022 VDE 0878 22 2011 12 Information technology equipment Radio disturbance characteristics Limits and methods of measurement CISPR 22 DIN EN 55024 VDE 0878 24 2011 09 Information technology equipment Immunity characteristics Limits and methods of measurement CISPR 24 DIN EN 61000 4 2 DIN EN 61000 4 3 DIN EN 61000 4 4 DIN EN 61000 4 5 DIN EN 61000 4 6 DIN EN 61000 4 8 DIN EN 61000 4 11 Oberhaching 15 October 2013 Frank Heineck Board Member yi LkL E jJj XxX X ZZYEKZZ Z ZFZFZI IX XL L L Z A A k Vj Z JEZ8W J dd drz5 rtrmzZz
21. of separate dedicated digital signal Slow analogue signals used to assert TO IN IN signal not before VCC All 3 cases above might prevent the modem from recognizing 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 If you are in doubt please Use the mains power adapter that is provided by your distributor and is know to work properly with your modem Make sure that your signal and system design is according to the above Consult our support team that will be more than happy to assist you 14 3 2 Switch OFF the modem The only way to turn off the modem is to remove power 3 3 Using low power mode of the modem Below are some short descriptions on how to enter and exit the low power state of the modem 3 3 1 Enabling the low power mode wait until the GSM module is logged onto the GSM network send the AT command AT CFUN 9 set the RTS control line from High level to Low level after about 1 2 minutes a stable low power mode should be achieved 3 3 2 Disabling the low power mode by user Set the RTS control line from Low to High Low power mode should be exited automatically The RS 232 transceiver is activated immediately AT channel is available again after a short period of time 37ms If applicable send AT command AT CFUN 1 to remain in normal mode 3 3 3 Disable the low power modes by inco
22. on work 4 1 Safety instructions PLEASE READ THESE SAFETY INSTRUCTIONS AND KEEP A COPY OF THEM Always ensure that use of the modem is permitted The modem may present a hazard if used proximity to 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 refuelling point blasting area or in any other environment where explosives may be present Operating the modem close to other electronic devices such as antennas television sets and radios may cause electromagnetic interference This product is intended to be used with the antenna or other radiating element at least 20cm away from any part of the human body In applications where this rule cannot be applied the application designer is responsible for providing the SAR measurement test report and declaration You are responsible for observing your country s safety standards and where applicable the relevant wiring rules 4 2 General precautions The CT63 E 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 Technical Data Avoid exposing the modem to lighted cigarettes naked flames or to extreme hot or cold temperature 17 4 3 4 4 TERMINALS Never try to dismantle the modem yourself There are no components i
23. rength as well as cable length 5 1 3 Connections of components to CT63 E Terminal The integrator is responsible for the final integrated system Incorrectly 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 20 5 2 5 3 TERMINALS 5 1 4 Network and Subscription Before your application is used you must ensure that your chosen network provides the necessary telecommunication services Contact your service provider to obtain the necessary information If you intend to use SMS in the application ensure this is included in your voice subscription Consider the choice of the supplementary services How to install the modem 5 2 1 Power supply Use a high quality power supply cable with low resistance This ensures that the voltages at the connector pins are within the allowed range even during the maximum peak current 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 5 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
24. se of extension cables connectors and adapters Each additional cable connector or adapter causes a loss of signal power 5 3 5 Possible communications disturbances Possible communication disturbances include the following Noise can be caused by electronic devices and radio transmitters 22 TERMINALS 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 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 simultaneously Surfaces such as buildings streets vehicles etc can reflect signals Hand over occurs as you move from one cell to another in the GSM network Your mobile application call is transferred from one cell to the next Hand over can briefly interfere with communication and may cause a delay or at worst a disruption 23 Technical Data Product features Dual band EGSM 900 1800 MHz GSM 900 Power class 4 2W GSM 1800 Power class 1 1W Control via AT commands according to Hayes 3GPP TS 27 007 27 005 and proprietary Cinterion Serial Port Multiplexer GSM 7 10 SIM Access Profile Supply voltag
25. the antenna and antenna cable must be 500 antenna output power handling must be a minimum of 2W the VSWR value should be less than 3 1 to avoid any damage to the modem 5 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 Therefore we recommend to use a cable antenna and place it away from the terminal If signal strength is weak it is useful to face a directional antenna at the closest radio base station This can increase the strength of the signal received by the modem The modem s peak output power can reach 2W RF field strength varies with antenna type and distance At 10cm from the antenna the field strength may be up to 70V m and at 1m it will have reduced to 7V m In general CE marked products for residential and commercial areas and light industry can withstand a minimum of 3V m 5 3 4 The antenna cable Use 509 impedance low loss cable and high quality 50 impedance connectors frequency range up to 2GHz to avoid RF losses Ensure that the antenna cable is as short as possible The Voltage Standing Wave Ratio VSWR may depend on the effectiveness of the antenna cable and connectors In addition if you use an adapter between the antenna cable and the antenna connector it is crucial that the antenna cable is a high quality low loss cable Minimize the u
26. this section before starting your integration work 5 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 They are 5 1 1 Environmental conditions The modem must be installed so that the environmental conditions stated in the Technical Data chapter such as temperature humidity and vibration are satisfied Additionally the electrical specifications in the Technical Data section must not be exceeded 5 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 Degradation in signal strength can be the result of a disturbance from another source for example an electronic device in the immediate vicinity More information about possible communication disturbances can be found in section 5 3 5 When an application is completed you can verify signal strength by issuing the AT command AT CSQ See AT CSQ Signal Strength Tip Before installing the modem use an ordinary mobile telephone to check a possible location for it In determining the location for the modem and antenna you should consider signal st
27. tion amp report Other features Same mounting holes as Siemens Cinterion TC35 MC35 Terminal 25 TERMINALS 7 CEP Certified Accessories nl NER WR 12002 12003 12021 12016 12020 12006 12004 Power supply 230V AC 12 V 6pin RJ11 connector DC Power cable 6pin RJ11 connector with open ends Magnetic Antenna Pentaband FME female Quad amp UMTS Rectangular Antenna female Pentaband Quad amp UMTS Patch Antenna Pentaband Quad amp UMTS Roof mount FME female waterproof 900 1800 MHz RS232 cable 1 5m for PC connection Mini USB cable for Audio Mini Klinke Mini USB cable for Audio RJ11 Table 8 Accessories List Please contact your distributor or CEP AG for availability or check CEP s webpage www cepag de 26 8 Abbreviations Abbreviation Explanations CBM CBS CSD DCE DTE ETSI FR GPRS GSM HR HSCSD ITU T ME MO MS MT PDU RLP RF RTC SIM SMS TA Cell Broadcast Message Cell Broadcast Service Circuit Switched Data Data Circuit Terminating Equipment Data Terminal Equipment Dual Tone Multi Frequency Enhanced Full Rate Electro Magnetic Compatibility European Telecommunication Standards Institute Full Rate General Packet Radio Service Global System for Mobile Communication Half Rate High Speed Circuit Switched Data International Telecommunication Union Standardisation Sector M
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