Hayes Microcomputer Products ASLH306 User's Manual
Contents
1. which can be verified by the use of the CLI issued by the network provider To this end the execution of the AT T command causes the modem to dial an internally stored number automatically This command can be executed both locally or remotely ie via the modem RS 232C interface or from a remotely connected modem Once a connection has been established with the 306 modem the command is issued from the remote modem causing the 306 to enter online command mode whereupon the AT T command can be issued Activate locally or remotely with ASL Holdings Limited 19 09 2005 17 Draft Copy Version 2c at t Modem will then dial number in ME memory 1 see below To store a number 1 Set memory to internal memory not SIM at tcpbs ME Phone Book Store command OK 2 Add number Text at end can be any characters Use number system 145 for international type numbering or 129 for UK type numbering See example below at tcpbw 1 441339755397 145 Top up Phone Book Write command OK 3 Save at amp w OK 4 To read it back if you wish at cpbr 1 Phone Book Read command CPBR 1 441339755397 145 Top up OK 5 To use manually atd gt ME1 CONNECT 9600 The quick brown fox jumps over the lazy dog Data NO CARRIER 6 UK numbering example at cpbw 1 01339755081 129 Home OK ASL Holdings Limited 19 09 2005 18 Draft Copy Version 2c LED Status GSM Mode Version 2 02 amp 2 05 Red LED Off for2. module off On when unregistered with network Flashes when registered with network Green LED Slow flash is off line Fast flash is on line Yellow LED Off Slow flash On with increasing signal level LED Status GPRS Mode Version 2 08 and above When listening in GPRS you can identify the status of the unit Red LED Off for module off On when unregistered with network Flashes when registered with network Green LED Slow flash is off line Fast flash is on line not as fast as GSM online state but faster than in GSM offline state Fast flash when not registered low supply voltage Very fast flash Pulsing Full auto reset following loss of network Yellow LED Off Slow flash On with increasing signal level Short flash to indicate the difference between no SQ yet found during initialisation and off indicating low Signal Quality On issue 3 hardware boards Signal Quality LED sensitivity now set down to 10 Was 12 Technical Specifications Configuration and Rates 9600 bps 4800 bps 2400 bps 1200 bps Data Format 10 bit character length including parity start and stop bits 1 start bit 7 or 8 data bits ASL Holdings Limited 19 09 2005 19 Draft Copy Version 2c 0 or 1 parity bit Modem Operation Controlled by AT commands and supporting S registers Data Modulation V22 1200 bps V22bis 2400 bps V32 2400 9600 bps V110 2400 56000 bps Fax Group 3 Class 1 a
3. option Connecting to your Terminal or Computer The 25 way D type connector on the top of the modem provides the relevant input and output connections to asynchronous Serial RS 232 and compatible controllers To establish a connection the modem can be directly connected to a suitable 25 way socket on your computer or other DTE device or a short RS 232 cable can be used When connecting the modem to the DTE device consideration must be given to the power supply arrangements as most devices will not provide a suitable supply to the modem via the 25 way D type connector ASL Holdings Limited 19 09 2005 5 Draft Copy Version 2c The 25 way D type connector is wired as follows Pin number name and mnemonic 2 Transmit Data TxD 3 Receive Data RxD 4 Request to Send RTS 5 Clear to Send CTS 6 Data Set Ready DSR 7 Signal Ground Supply Ground SG 8 Data Carrier Detect DCD 9 Power In PI 15 Power In PI 20 Data Terminal Ready DTR 22 Ring Indicator RI Supplying power to the modem The Delta Plus MOBILE II GSM GPRS modem is powered via the RS232 interface connector Pins 9 and or 15 require a 7 to 24 Volts DC supply issue F board Earlier issues of the board require 7 to 15Volts The modem consumes 0 3 Watts See appendix The supply to the modem is floated across internal SuperCaps These devices hold a considerable charge and will allow the modem LED s to continue to function for several minutes after the removal of the power suppl
4. 051 052 053 054 055 056 057 060 061 062 063 064 065 066 067 070 071 072 073 074 075 076 077 100 101 102 103 104 105 106 107 110 111 112 113 114 115 116 117 120 121 122 123 134 125 126 127 130 131 132 133 134 135 136 137 140 141 142 143 144 145 146 147 150 151 152 153 154 155 156 157 160 161 162 163 164 165 166 167 170 171 172 173 174 175 176 177 200 201 202 203 204 205 206 207 210 211 212 213 214 215 216 217 220 221 222 223 224 225 226 227 230 231 232 233 234 235 236 237 240 241 242 243 244 245 246 247 250 251 252 253 254 255 256 257 260 261 262 263 264 265 266 267 270 271 272 273 274 275 276 277 300 301 302 303 304 305 306 307 310 311 312 313 314 315 316 317 320 321 322 323 324 325 326 327 330 331 332 333 334 335 336 337 340 341 342 343 344 345 346 347 350 351 352 353 354 355 356 357 360 361 362 363 364 365 366 367 370 371 372 373 374 375 376 377 T1MIOWVWD gt OEOTNDUIRWNM O ASL Holdings Limited 19 09 2005 Draft Copy Version 2c ASL Holdings Limited Draft Copy Version 2c Index 19 09 2005 28 ASL Holdings Ltd The Oaks Spring Hill Office Park Spring Hill Farm Harborough Road Pitsford Northampton NN6 9AA Tel 44 0 1604 883880 Fax 44 0 1604 883881 e mail sales aslholdings co uk web http www aslholdings co uk ASL Holdings Limited Draft Copy Version 2c 19 09 2005 29
5. 3 Same as ATX1 with the addition of busy tone detection ATX4 Same as ATX1 with addition of dial tone and busy tone detection These commands are for compatibility only ATZ Modem Reset Resets the modem without changing any parameters ASL Holdings Limited 19 09 2005 10 Draft Copy Version 2c AT amp C Carrier control This parameter defines the operation of pin 8 DCD of the RS 232C interface AT amp CO Always on AT amp C1 Fixed to this setting Carrier goes high when on line AT amp C3 Off in command mode On when modem on line For compatibility only ie modem will respond with OK but not take any action AT amp D Data Terminal Ready options This command controls the handling of the DTR line Pin 20 AT amp DO DTR state is ignored and no action is taken This is the equivalent of holding DTR permanently active high AT amp D1 Returns the modem to command mode on loss of DTR This is the same as issuing the escape sequence i e the modem will go into command mode but will not drop the line AT amp D2 Prevents the modem from originating or answering a call unless DTR is raised by the DTE and if the modem is online when DTR drops the call will be disconnected AT amp F Restore Factory Configuration Configures the modem to factory default settings Does not default AT autosave commands AT amp V This command shows the general set up of the modem Displays for example Version
6. 3 03 firmware at amp Ve v gq x amp c amp d s0 s2 s3 cbst 306 v3 03 S1 1200N GO PO E 1 V 1 Q 0 X 4 amp C 1 amp D 0 001 Sreg 1 043 Sreg 2 ASL Holdings Limited 19 09 2005 11 Draft Copy Version 2c 013 CBST 0 0 1 OK On earlier versions of the modem pre version 2 08 firmware less information is displayed when this command is issued Due to the architecture of the interface circuitry not all of the above commands will necessarily be displayed each time Issue 3 Hardware This displays additional S and P status S displays the status of the interface ie SO The interface is set for sleep mode S1 The interface is permanently on default Set using AT A auto shutdown command P displays the modem power consumption PO The modem is set for low power consumption P1 The modem is set for high power consumption Set using AT P command AT amp W Write configuration to non volatile RAM N B AT commands are autosave and therefore execution of this command is not necessary to save these to memory Al Re execute last command TIES Time Independent Escape Sequence When issued to the modem in an on line state this command will place the modem into on line command mode Remote Access command When this command is issued from a remotely connected modem it will enable the remote user to interrogate and configure the ASLH306 device AT A RS2
7. 32 auto shutdown control toggles on off It echoes AT A _ if auto shutdown is on ie RS232 in sleep mode ASL Holdings Limited 19 09 2005 12 Draft Copy Version 2c AT a if auto shutdown is off ie RS232 on all the time Autosave AT Gn AT G0 turns off GPRS mode AT G1 turns on GPRS mode and selects the APN Autosave AT l reports ASLH 306 firmware version number RS232 auto off state 1 always on baud rate N or E for parity F W dependent AT K Turns Sony Ericsson module off Up to F W version 2 11 Version 2 12 onwards turns off the complete modem AT O Turns Sony Ericsson module on Assuming modem is turned on The AT 0 command is no longer implemented ie No turning on of the Sony Ericsson module on issue 3 hardware boards AT P Power Consumption control This command allows the modem to be set for either low or high power consumption PO low P1 high PO should be used when the DTE is unable to supply high current P1 should be used when the DTE power supply current rating is not an issue AT R Resets modem Up to F W version 3 01 Version 3 02 onwards causes the modem to execute a 10 second power cycle AT S Displays Signal Strength toggles on off default off Remote AT S reports last known Signal Strength From firmware version 3 02 the sample rate of the signal strength algorithm is increased AT T Commands modem to dial a stored number held in ME memory location
8. ASL COMMURIGATING EX BY DESIGN Delta Plus MOBILE Il GSM GPRS Class 10 with TCP IP stack modem Part No ASLH306 User Guide DRAFT COPY ASL Holdings Limited 19 09 2005 Draft Copy Version 2c LY Ia ae ET glej ae i Ze ee 2 S ere ae COMMUNICATING BY DESIGN EN EEE R Delta Plus MOBILE II GSM GPRS Class 10 with TCP IP stack modem ASL Holdings Limited 19 09 2005 Draft Copy Version 2c Contents Guide to the manual Disclaimer Copyright Notice Trademarks Introduction Features Connecting to your Terminal or Computer Supplying power to the modem Battery Powered version Antennae Subscriber Identity Module card Configuring the modem AT Command set Sony Ericsson commands S Registers Modem result codes GPRS operation Remote access feature Pay as you go SIM support LED Status Technical Specifications Appendices ASL Holdings Limited 19 09 2005 Draft Copy Version 2c Delta Plus MOBILE II GSM GPRS Class 10 With TCP IP stack modem Hardware User Guide Guide to the manual This manual contains detailed technical information about the Delta Plus MOBILE II GSM GPRS modem including the commands necessary to configure and use it in your particular application If you require further technical detail on this modem please call our Technical Support Group Disclaimer This manual has been checked for accuracy The information included in this document is pertinent to all versions of the Delta Pl
9. AT n Set baud rate parity This is automatically saved When set to no parity the Sony Ericsson module will still respond to AT commands with even parity AT 0 9600 N81 AT 1 9600 E71 AT 2 4800 N81 AT 3 4800 E71 AT 4 2400 N81 AT 5 2400 E71 AT 6 1200 N81 AT 7 1200 E71 Autosave ASL Holdings Limited 19 09 2005 13 Draft Copy Version 2c Sony Ericsson commands GPRS related AT CDGCONT Define PDP Context AT CDGCONT n IP APN address AT ENAD Ericsson Internet Account Define AT ENAD n GPRS username password 1 0 PAYG SIM related AT CPBS Phone Book Store AT CPBS ME Use ME memory location AT CPBW Phone Book Write AT CPBWE n phone number number system text See PAYG support section AT CPBR Phone Book Read AT CPBR n Where n is the ME memory location Remote Access related To interrogate the modem to check if Remote Access is enabled at e2apc Response E2APC 0 0 0 0 Not enabled To enable Remote Access Issue two commands to modem 306 at e2apd 3 0 at e2apc 1 1 Write configuration change to NVRAM AT amp W Interrogate modem ASL Holdings Limited 19 09 2005 14 Draft Copy Version 2c at e2apc Response E2APC 0 1 0 0 Power cycle the modem Interrogate modem at e2apc Response E2APC 1 1 0 0 Remote Access enabled General AT CGMR This command will cause the Sony Ericsson module to display its type version Response R6A023 CX
10. C1122528 Example AT CBST This command gives information regarding the cellular network bearer channel Response 0 0 1 Autobaud rate Asynchronous Non transparent S Registers S0 Number of rings to answer Range 0 7 Default 0 No answer S2 Escape sequence character Range 0 255 Default 43 S3 CR character Range 0 127 Default 13 Cntrl M S4 LF character Range 0 127 Default 10 Cntrl J S5 Back space character Range 0 127 Default 8 Backspace S6 Wait before blind dialling Range 2 255 Default 2 2 secs S7 Wait for carrier Range 1 255 Default 50 50 secs S8 Comma Pause time Range 1 255 Default 2 2 secs S10 Carrier loss to hang up time Range 1 254 Default 2 0 2 secs Compatibility only Modem result codes Numeric Verbose Legend 0 OK Command line executed without errors ASL Holdings Limited 19 09 2005 15 Draft Copy Version 2c 1 CONNECT Connection 2 RING Ringing signal detected 3 NO CARRIER Carrier lost or never present 4 ERROR Invalid Command 6 NO DIAL TONE No dial tone detected 7 BUSY Busy signal detected 8 NO ANSWER No answer from remote modem GPRS operation The three main commands used to set up a GPRS call with the Delta Plus MOBILE II GSM GPRS modem in listening mode are as follows AT Gn where n 0 to 9 AT G0 turns off GPRS mode AT G1 9 turns on GPRS mode and auto connects using context 1 9 then listens for a port 23 connection If AT Gn i
11. Decimal Here s a chart that shows the conversion between hex and decimal 0123456789 ABCDEF 000 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 036 037 038 039 040 041 042 043 044 045 046 047 048 049 050 051 052 053 054 055 056 057 058 059 060 061 062 063 064 065 066 067 068 069 070 071 072 073 074 075 076 077 078 079 080 081 082 083 084 085 086 087 088 089 090 091 092 093 094 095 096 097 098 099 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 MMUOQWFPOONDUNBRWNAO ASL Holdings Limited 19 09 2005 Draft Copy Version 2c Converting Hex to Octal Here s a chart that shows the conversion between hex and octal 0123456789 ABCDEF 000 001 002 003 004 005 006 007 010 011 012 013 014 015 016 017 020 021 022 023 024 025 026 027 030 031 032 033 034 035 036 037 040 041 042 043 044 045 046 047 050
12. chive 2 08 R5B003 4320 Cc Yes Yes No Yes Yes Yes No No No No No No No Yes No archive 19 09 2005 2 10 R6A023 4320 Cc Yes Yes No Yes Yes Yes No No No No No No No Yes No archive 2 11 2 12 R5B003 4320 Cc Yes Yes No Yes Yes Yes No Yes Yes No No No No Yes Yes NIE evaluation units only 3 01 R6A023 4320 F Yes Yes Yes Yes Yes Yes Yes Yes Yes No No No No Yes Yes archive R6A023 22 3 03 4320 F Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No No No Yes Yes archive 3 10 R6A023 4260 G Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No No No Yes Yes Released 23 7 3 11 R6A023 4260 G Yes Yes No Yes Yes Yes Yes Yes Yes Yes No Yes Yes Yes Yes Not Released ASL Holdings Limited Draft Copy Version 2c Appendix 2 19 09 2005 23 Appendix 3 Peak power supply requirements Power supply voltage V Peak power supply current mA 7 220 8 190 9 170 10 150 11 140 12 130 13 120 14 110 15 100 Issue f and issue e mod is able to work over an increased range 16 95 17 90 18 85 19 80 20 75 21 72 22 70 23 66 24 64 Calculated figures based on power consumption of 1 5 watt ASL Holdings Limited 19 09 2005 Draft Copy Version 2c ASL Holdings Limited Draft Copy Version 2c Appendix 4 Glossary of terms and abbreviations 19 09 2005 25 Appendix 5 Converting Hex to
13. cr gt not AT YS0 1 lt cr gt etc ATA Answer mode enable ASL Holdings Limited 19 09 2005 7 Draft Copy Version 2c Causes the modem to answer an incoming call ATD Dial Command Causes the modem to go on line and dial the following telephone number subject to parameters set in the dial string eg ATDT 12345 1234564m Where D Dial T Tone Compatibility only m Carriage return ATE Local Echo in command mode AT EO Local Echo off AT E1 Local Echo on ATH Hang Up command This command causes the modem to disconnect from the telephone line AT Identifier command ATI 0 displays GR47 ATI 1 displays CXC 1122528 ATI 3 displays GR47 Cable Modem ATI 5 displays for example Configuration Settings on Channel 0 amp C 1 amp D 0 E2IPA 0 E2IPO 0 E2IPS 2 10 2 1020 EENMEA 0 CGATT 1 CGEREP 0 0 ASL Holdings Limited 19 09 2005 Draft Copy Version 2c CGREG 0 1 CHSR 0 CHSU 0 CMEE 0 CMUX 0 0 1 31 10 3 30 10 2 CR 0 CRC 0 CRLP 61 61 48 6 0 CRLP 120 120 48 6 2 3 CVHU 2 ICF 3 3 IFC 2 2 ILRR 0 IPR 9600 E 1 Due to the architecture of the interface circuitry not all of the above commands will necessarily be displayed each time ATI 7 displays GR47 Profile Interfaces System Bus ATI 9 displays SERIO044 MODEM GR47 Cable Modem0D ATO Return to on line state command This command returns to modem to the on line data transmission state f
14. hen the power up sequence will take longer Antennae The Delta Plus MOBILE II GSM GPRS modem is designed to work with many industry standard antennae Connection to the antenna is via a flying lead terminated with a SMA type co axial connector The selection of the most suitable antenna in any given installation will be dependent upon factors such as the distance from the cell site signal strength power supply levels and other physical constraints ASLH Ltd will be pleased to assist customers with the selection of suitable antennae Subscriber Identity Module card This product requires a suitable Subscriber Identity Module SIM card inserted in the right hand side of the modem The SIM card is provided by the network service provider eg O2 Vodafone Orange etc This card must be data enabled ie a voice only SIM will not work Additionally if the product is to be used for GPRS applications then the SIM card must be GPRS enabled This mode will be set as either mobile originate or terminate IP listen depending upon the users requirements ASLH Ltd is able to provide network service supplied by the aforementioned companies Configuring the modem This is achieved by the use of the standard Hayes AT command set as utilised in conventional land line modems A comprehensive list of AT commands used by the Delta Plus MOBILE II GSM GPRS modem follows AT Command set AT commands should be used alone not concatenated ie AT Y lt
15. mp 2 HSCSD 2 1 up to 28 8 kbps GPRS Class B 4 1 up to 85 6 kbps Equipment Interface CCITT V 24 V 28 GPRS Mobile Originate and Listen modes Class 10 ASL Holdings Limited 19 09 2005 Draft Copy Version 2c 20 Appendices Appendix 1 Hardware and software compatibility Appendix 2 Appendix 3 Power supply requirements Appendix 4 Glossary Appendix 5 Conversion tables ASL Holdings Limited 19 09 2005 Draft Copy Version 2c 21 ASLH306 Firmware revision chart V4 0b F W Version Sony Ericsson Module PIC version PCB version GSM GPRS Originate GPRS Terminate Listen Remote Access Remote access to Sony module Battery External Power Lead High Power Revised SQ display Pay as you Go call back Short Message Service Remote config Firmware OWP supported Network Watch Dog Network Watchdog inc power cycle Release Status 10 69 R5B003 4220 Cc Yes No No No No No No No No No No No No Yes No archive 2 01 R5B003 4220 Cc Yes Yes No Yes Yes No No No No No No No No Yes No archive ASL Holdings Limited Draft Copy Version 2c Hardware and software compatibility 2 02 R5B003 4220 Cc Yes Yes No Yes Yes No No No No No No No No Yes No archive Appendix 1 2 02 R5B003 4220 Cc Yes Yes No Yes Yes Yes No No No No No No No Yes No archive 2 05 R5B003 4320 Cc Yes Yes No Yes Yes Yes No No No No No No No Yes No ar
16. nty status If no fault is found a charge will be made to cover the costs of testing and carriage Your original or replacement modem will be returned with an engineering report on the fault found Thank you for your co operation The Delta Plus MOBILE II is a new low powered high speed GSM GPRS modem which has been specifically designed to meet the requirements of the telemetry market and specifically applications within the Automatic Meter Reading AMR arena The purpose of this manual is to enable the user to set up configure and use the modem in a manner suitable for any given application A basic level of modems and data communication technology is assumed Features DTE speeds up to 9600 bps Bearer channel speeds of 9600 bps 4800 bps 2400 bps and 1200 bps Supports auto dial and auto answer on number of rings NVRAM stores configuration parameters Suitable for approvals use in most countries Interface is a 25 pin D type RS232 Connector Power supply input on pins 9 and 15 of 25 way D type connector Auto Shutdown minimises RS 232 Power consumption during periods of inactivity Environment Temperature 0 50 C Humidity 95 non condensing Enhanced AT command set Integrated call progress and dialling Advanced power supply handling techniques Remote access capability Dual Band ie E GSM 900 Mhz or GSM 1800 Mhz GPRS Mobile Originate and Listen modes Class 10 Internal battery option External power
17. ollowing an on line command mode session ie it is used to return to data mode after the escape sequence has been entered ATQ ASL Holdings Limited 19 09 2005 Draft Copy Version 2c Quiet mode Defines whether or not messages generated by the modem are sent to the DTE AT QO Quiet mode off AT Q1 Quiet mode on ATV Verbose mode enable Defines whether the above messages are displayed as readable text or numeric values AT VO Verbose mode disabled AT V1 Verbose mode enabled AT X Result codes These are the messages generated by the modem when connection or disconnection is attempted There are 5 sets of result codes available numbered 0 4 The ATX command is used to select which result code set to use The selection of the result code set also affects the way the modem detects dial tone and busy tones ATXO Selects the Basic code set In this mode dialling will be carried out regardless of whether a dial tone is detected or not this is called Blind Dialling If successfully connected the CONNECT message will be returned from the modem No indication is made as to the speed the modem is connected at ATX1 Selects the extended result code set Connection is as for XO except that the modem now indicates the connection speed in the connect message e g CONNECT 300 when connected at 300bps CONNECT 1200 when connected at 1200bps ATX2 Same as ATX1 with the addition of dial tone detection ATX
18. ommand to the modem from the remote modem The ASLH 306 will respond with an OK You are now connected to the remote 306 PIC interface If access to the Sony Ericsson module is required issue the AT Z command to the remote modem 6 The ASLH 306 will respond with RC OK 7 Drop the dial up connection 8 Re establish the dial up connection again within 60 seconds 9 You are now in communication with the Sony Ericsson module within the ASLH 306 modem 10 Only AT commands proprietary to the Sony Ericsson module can now be used 11 There is no method of returning to on line mode following a remote access session and therefore the call must be terminated and a new Call initiated ORWON Please note that the remote access feature only works when the modem interface is set for 8 data bits no parity and 1 stop bit Pay As You Go PAYG SIM Support This feature has been included as part of the solution to the requirement for the use of Pay As You Go SIM s PAYG SIM use demands that at least one phone call is originated from the number in a six month period in order to keep the service live The meters used by the Electricity supply industry typically have no inherent intelligence and therefore do not have the ability to originate a Call to satisfy this requirement This situation can be circumvented by use of a central site server designed to call the modems on a cyclical basis and instruct them to call into a pre defined server number
19. s on ie n 1 9 then it will restart if the connection fails also at power up To set contexts n 1 9 in the following two commands AT CDGCONT n IP Enter access point name APN address here AT ENAD n GPRS username password 1 0 To escape from TCP IP listening mode when a session is not connected issue a Ctrl C This can take several minutes to detach from the network and will set AT G0 until G is changed or a reset or a power cycle is invoked This will set the modem back into auto mode Firmware version 2 10 and above Additional GPRS watchdogs have been added to the modem in order to negate network fail conditions these ensure that the unit continually re tries to connect in GPRS mode if a call failure is detected Timeouts Typically these are Online GPRS inactivity timeout of 4m 16s 256 seconds covers failure mid session User exit from GPRS mode Ctrl C times out amp GPRS restarts after 1m 42 secs unless the AT G command is used Fail safe timeout restarts every 3h 37 6 minutes if unit is offline Covers random GPRS network failures Lack of Signal Signal Quality SQ timeout is 45 minutes ASL Holdings Limited 19 09 2005 16 Draft Copy Version 2c Remote Access The ASLH 306 modem has the ability to be remotely accessed for both testing and configuration purposes This is achieved as follows Establish a normal dial up connection to the ASLH 306 modem Issue the c
20. us MOBILE II GSM GPRS modem at the time of publication Subsequent products and manuals are subject to change without prior notification Therefore ASLH Ltd will take no responsibility for damages incurred either directly or indirectly from errors omissions or inaccuracies between the product and the manual Copyright Notice This manual is copyrighted by ASLH Ltd with all rights reserved Under copyright laws this manual may not be reproduced in any form without prior written permission of ASLH Ltd No patent liability is assumed however with regard to the use of the information contained herein Trademarks Hayes is a trade mark of Hayes Microcomputer Products Inc Introduction Thank you for purchasing this ASLH Ltd modem which is guaranteed for one year from the date of purchase If after reading this manual you have any problems or queries regarding this modem please contact ASLH Ltd from whom the modem was purchased In the unlikely event of you needing to return the modem to us you must first call our Returns Department to obtain a Return Authorisation Number RAN This number must be clearly marked on the outer packaging containing the faulty modem and addressed for the ASL Holdings Limited 19 09 2005 Draft Copy Version 2c attention of the Returns Department No goods will be accepted without a Return Authorisation Number Please enclose a copy of your original purchase invoice to enable us to determine the warra
21. y This enables the modem to be used in environments where the power supply is either intermittent and or inadequate within reason for a conventional modem product Battery powered version The GSM GPRS modem is also available as a battery powered device The battery employed in the modem is a Lithium lon Polymer type and is subject to a minimum duty cycle of 1000 operations The battery is fitted in addition to the Super Caps that are present in the standard modem and will power the modem for approximately two minutes after the external supply has been removed This is regardless of whether or not the modem is on line When the modem shuts down it will issue a Goodbye message to the interface Additionally the modem can be switched off using an AT command The AT K command will shutdown the entire modem not just the Sony Ericsson module as is the case with other ASLH 306 products within 15 seconds If the power supply to the modem is not removed within 30 seconds ASL Holdings Limited 19 09 2005 6 Draft Copy Version 2c of the modem issuing the Goodbye message then it will commence its power up sequence and restart The battery powered modem will power up within 5 seconds after the external supply is applied given that the battery and capacitors are fully charged and that the modem is operating at room temperature If the battery and capacitors are not fully charged and or the modem is not operating at room temperature t
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