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Troubleshooting

47

Situation C: The modem always returns «No

carrier» when trying to issue a

communication

Solutions for “no carrier” message

If the
modem
returns …

Then ask …

Action

no carrier

(esp. for
data
communi-
cation)

Is the selected
bearer type
supported by
the called
party?

Is the selected
bearer type
supported by
the network?

Type AT+CEER to view the
extended error code (see
“Interpretation of Extended
Error Codes” table, page 52).
Be sure that the selected
bearer type is supported by
the called party.

Be sure that the selected
bearer type is supported by
the network.

If no success, try bearer
selection type:
AT+CBST=0,0,3
Be sure SIM card is available
for data/fax calls.

Содержание MTCBA-G-F

Страница 1: ...MultiModem GSM GPRS External Wireless Modem Data Fax Voice MTCBA G F1 MTCBA G F2 UserGuide...

Страница 2: ...mplied warranties of merchantability or fitness for any particular purpose Furthermore Multi Tech Systems Inc reserves the right to revise this publication and to make changes from time to time in the...

Страница 3: ...Network Access 10 Features 12 APPLICATION OVERVIEW 13 Application Types 13 Benefits Features in Applications 15 Functions GSM Modes 18 SPECIFICATIONS 19 General Specifications 19 Electrical Characteri...

Страница 4: ...ion B The modem always returns Error when trying to issue a communication 42 Situation C The modem always returns No carrier when trying to issue a communication 47 SAFETY 51 General Safety 51 Vehicle...

Страница 5: ...mobile terminated SMS Designed for global use it offers standards based multi band GSM GPRS Class 10 performance This ready to deploy standalone modem allows developers to add wireless communication t...

Страница 6: ...in cable one power supply cable with fuse one User Manual this document Interfaces The Wireless MultiModem has several interfaces LED function indicating operating status External antenna via SMA conn...

Страница 7: ...ule SIM configuration chip The SIM contains information specific to your wireless account and its features Parts to be Supplied by End User mounting screws screw shaft diameter 17 max antenna The ante...

Страница 8: ...and 2W at 12 5 duty cycle 2W at 12 5 duty cycle Impedance 50 ohms VSWR 2 Typical Radiated Gain 0 dBi on azimuth plane GSM 1800 GSM 1900 Frequency RX 1805 to 1880 MHz 1930 to 1990 MHz Frequency TX 1710...

Страница 9: ...aking it is useful to have one or two kits to configure a group or fleet of Wireless MultiModem units generally you will not need one kit for every modem The kit includes an antenna a power supply and...

Страница 10: ...ilable on the MultiTech web site or on the Accessory Kit CD Phone Number for the Wireless Modem Every wireless modem will have its own unique phone number The wireless modem s phone number may simply...

Страница 11: ...s service provider or another phone number related to a different dialup modem service e g a dialup modem service phone number from any commercial or private dialup network For GSM with GPRS a single...

Страница 12: ...phone book management Desktop or panel mounting Fixed dialing number Short Message Services including text and PDU point to point cell broadcast SIM Toolkit Class 2 14 4K GSM circuit switched data SIM...

Страница 13: ...eive data over a wireless network It is an ideal solution for Appliances Remote Diagnostics ATM Terminals Remote Metering Automotive Security Systems Data Collection Vending Gaming Machines Gas Pumps...

Страница 14: ...Application Overview 14 RS232 Wireless MultiModem used in remote ATM application...

Страница 15: ...ning network and RF approvals This complete ready to deploy wireless modem allows you to enhance your product while you focus on developing its core features Voice Features The MultiModem GSM GPRS pro...

Страница 16: ...tification advice of charge USSD closed user group and explicit call transfer Management Features The MultiModem GSM GPRS provides advanced management features including phone book management fixed di...

Страница 17: ...power connector It also has an SMA antenna connector The chassis can be side mounted on a panel or top mounted on a desktop or other surface A set of LEDs indicate the modem s operational status Netwo...

Страница 18: ...7 SMS Mobile Originated MO and Mobile Terminated MT SMS Mode Text PDU point to point Cell broadcast in accordance with GSM 07 05 Data Asynchronous 2400 4800 9600 and 14400 bps Data Transparent and Non...

Страница 19: ...4 1 oz 11 cm x 6 1 cm x 2 4 cm 115 g Connectors Fasteners Antenna Connection type SMA jack Serial Connector 15 pin RS232 SUB D female DE15S Pins RS232 link audio link BOOT RESET Power Connector 2 5mm...

Страница 20: ...on off The device is permanently powered when connected to the power supply Voltage Range Voltage range 5 to 32V DC GND 0V Overvoltage and Undervoltage Correct operation of the Wireless MultiModem in...

Страница 21: ...900 GSM 1800 1900 Parameters Min Typ Max Min Typ Max Unit Power Supply 25 degrees C Input Supply Voltage 5 13 2 32 5 13 2 32 V 5V 1 8 1 1 A 13 2 V 0 7 0 4 A Input peak supply current in comm mode at...

Страница 22: ...istics cont d GSM 850 900 GSM 1800 1900 Parameters Min Typ Max Min Typ Max Unit Power Supply 25 degrees C Input Supply Voltage 5 13 2 32 5 13 2 32 V 5V 31 4 31 4 mA 13 2 V 13 2 13 2 mA Input average s...

Страница 23: ...tion has been established LS Line Status Continuous on state indicates that the wireless modem is not registered on the network Flashing state indicates registration on network Off state Modem is off...

Страница 24: ...arrier Direct 6 RX 104 Receive Data out 2 TX 103 Transmit Data 8 DTR 108 2 Data Terminal Ready 9 GND Signal Ground 7 DSR 107 Data Set Ready 12 RTS 105 Request to Send 11 CTS 106 Clear to Send RS 232 1...

Страница 25: ...ed that are appropriate for the surface on which you will mount the MultiModem The mounting screw on the connector end of the unit must have a screw head no thicker than 2 mm The allowable thickness i...

Страница 26: ...all of the cab behind the passenger s seat 2 Typically the unit is mounted against a flat surface into which holes can be drilled The mounting holes center to center must be separated by 125mm or 4 15...

Страница 27: ...ted 27 3 Slide the mounting bridles into the corresponding slots on the back side of the MultiModem chassis 4 Attach the MultiModem with two screws to the mounting surface at the desired location on t...

Страница 28: ...odem requires the power supply connection to begin operation It also requires a SIM card Subscriber Identity Module to operate on a GSM network To install the modem do the following 1 Using your finge...

Страница 29: ...Getting Started 29 2 Insert the SIM card into the holder...

Страница 30: ...Getting Started 30 3 Verify that the SIM card fits into the holder properly and then replace the cover...

Страница 31: ...Getting Started 31 4 Connect a suitable antenna to the SMA connector see specifications on page 8 Antenna Connector SMA type...

Страница 32: ...Getting Started 32 5 Connect both sides of the serial and control cable 15 pin Sub D connector on the modem side Serial Control Connector To Serial Port of PC...

Страница 33: ...Line Fuse Power Connector To Power Source 7 Connect the power supply cable into the power supply with a correct GND connection Connect red wire to positive and black wire to negative Note For automot...

Страница 34: ...le s DC fuse terminal block 8 Activate the power supply Mobile Phonetools For initial configuration of your wireless device Multi Tech offers a Windows based mobile Phone Tools application To load mob...

Страница 35: ...rminal program at the computer to which the Wireless MultiModem is connected type the AT command AT CSQ A value for the received signal strength will be returned 2 Verify the result with the following...

Страница 36: ...am at the computer to which the Wireless MultiModem is connected type the AT command AT CREG A value for the modem s network registration status will be returned 2 Verify the result with the following...

Страница 37: ...de accepted CME ERROR 16 Incorrect PIN Code Enter PIN Code CME ERROR 3 PIN already entered with CMEE 1 mode AT CREG CREG mode 1 modem synchronized on the network CREG mode 2 synchronization lost re sy...

Страница 38: ...e call Receiving an incoming call OK ATD1234 Don t forget the at the end for voice calls OK Communication established CME ERROR 11 PIN Code not entered with CMEE 1 mode Initiate a call CME ERROR 3 AOC...

Страница 39: ...se Returned Comments Initiate an emergency call ATD112 OK Don t forget the at the end for voice calls Communi cation loss NO CARRIER ATH Hang up OK AT W Store the parameters in non volatile memory OK...

Страница 40: ...lutions Solutions for no connection through serial link situation If the modem returns Then ask Action Is the modem powered correctly Provide a power supply in the range of 5 to 32Vdc nothing Is the s...

Страница 41: ...Action Is the communication program properly configured In communications program verify that modem parameters have been set to the values shown here Data Bits 8 Parity none Stop Bits 1 Baud 115200 bp...

Страница 42: ...ions Solutions for error message situations If the modem returns Then ask Action error Is the modem registered on the network Follow Verifying network registration procedure to be sure modem is regist...

Страница 43: ...the network In comm program type AT CMEE 1 to view the extended error codes see Interpretation table below Retry Be sure called party and network support selected bearer type Be sure that semi colon...

Страница 44: ...n 10 SIM not inserted Do one of the following Insert the SIM card into the modem s SIM holder Be sure SIM card is clean properly inserted in holder 11 SIM PIN required Enter PIN code 12 SIM PUK requir...

Страница 45: ...ing string too long Check the phone number max 20 digits 30 No network service No action 32 Network not allowed emergency calls only No action 40 Network personalization PIN required Network lock Ente...

Страница 46: ...d 32 Check the service option 133 Requested service option not subscribed 33 Call your network provider to subscribe to the requested service option 134 Service option temporarily out of order 34 No a...

Страница 47: ...er type supported by the called party Is the selected bearer type supported by the network Type AT CEER to view the extended error code see Interpretation of Extended Error Codes table page 52 Be sure...

Страница 48: ...uni cation Be sure that the semicolon character is typed immediately after the phone number in the AT command E g ATD type AT CBST 0 0 3 Configure the SIM card for data fax calls Is the received signa...

Страница 49: ...or Codes related to no carrier message Error Code Diagnostic Hint 1 Unallocated phone number Not allocated 16 Normal call clearing 17 User busy 18 No user responding 19 User alerting no answer 21 Call...

Страница 50: ...your pre paid SIM card expired 252 Call barring on outgoing calls Not applicable 253 Call barring on outgoing calls Not applicable 3 6 8 29 34 38 41 42 43 44 47 49 57 58 63 65 69 70 79 254 Network ca...

Страница 51: ...ation Mobile means that the device is designed to be used in other than fixed locations and generally in such a way that a separation distance of at least 20 cm 8 inches is normally maintained between...

Страница 52: ...when around gasoline or diesel fuel pumps and before filling your vehicle with fuel Switch OFF your Wireless MultiModem in hospitals and any other place where medical equipment may be in use Respect...

Страница 53: ...tallation has been performed by qualified personnel Verification of the protection of vehicle electronics should be part of the installation The use of an alert device to operate a vehicle s lights or...

Страница 54: ...e of accessories not authorized by MultiTech or not compliant with MultiTech s accessory specifications may invalidate the warranty of the Wireless MultiModem In the unlikely event of a fault in the W...

Страница 55: ...ot apply to any products which have been damaged by lightning storms water or power surges or which have been neglected altered abused used for a purpose other than the one for which they were manufac...

Страница 56: ...repaid to our Mounds View Minnesota factory Multi Tech Systems Inc 2205 Woodale Drive Mounds View MN 55112 Attn Repairs Serial ____________ A Returned Materials Authorization RMA is not required Retur...

Страница 57: ...our questions regarding technical matters product configuration verification that the product is defective etc to our Technical Support department at 800 972 2439 or email tsupport multitech com Pleas...

Страница 58: ...ed international shipment methods are via Federal Express UPS or DHL courier services or by airmail parcel post shipments made by any other method will be refused A Returned Materials Authorization RM...

Страница 59: ...expediting receiving shipping billing etc to our Repair Accounting department at 763 717 5631 in the U S A or email mtsrepair multitech com Repairs for damages caused by lightning storms water power s...

Страница 60: ...Sophia Antipolis Cedex France e mail secretariat etsi fr Service The AT commands manual is available on the MultiTech web site http www multitech com Disclaimer Wireless MultiModem specifications and...

Страница 61: ...82001220...

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