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NAL Research Corporation (451-93156-009A)

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APPENDIX F: DESCRIPTION OF THE IRIDIUM NETWORK

F.1 Description of the Iridium Network

The Iridium satellite network is owned and operated by Iridium Satellite LLC (ISLLC). It was constructed

as a constellation of 66 satellites in low-earth orbit, terrestrial gateways and Iridium subscriber units (ISU).
An ISU can either be an Iridium satellite phone or any of NAL Research’s A3LA series modems. The satellites
are placed in an approximate polar orbit at an altitude of 780 km. There are 6 polar planes populated with
11 satellites per orbit constituting the 66 satellite constellation. The near polar orbits of the Iridium

constellation provide truly real-time and global coverage from pole-to-pole.

The Iridium is designed to operate in the band of 1616 to 1626.5 MHz although the exact frequencies

used depend on the local regulating authorities and issued licenses in any particular region. Each satellite
projects 48 beams on the surface of earth, which may be viewed as providing coverage cells on the ground
similar to terrestrial systems. Each beam is approximately 600 km in diameter. The 66-satellite constellation

has the potential to support a total of 3,168 spot beams; however, as the satellite orbits converge at the
poles, overlapping beams are shut down. The satellite footprint is ~4,700 km in diameter. Under each
footprint, a satellite is power limited to ~1,100 simultaneous circuits.

The Iridium network uses a time domain duplex (TDD) method and transmits and receives in an allotted

time window within the frame structure

.

Since the system is TDD, the ISU transmit and receive in the same

frequency band. The access technology is a FDMA/TDMA (frequency division multiple access/time division
multiple access) method whereby an ISU is assigned a channel composed of a frequency and time slot in

any particular beam. Channel assignments may be changed across cell/beam boundaries and is controlled
by the satellite. The system will provide an average link margin of 12 dB.

Constellation

Satellite

Gateway

Satellite Network

Operation Center

(SNOC)

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Summary of Contents for A3LA-RG

Page 1: ...RIPTION OF MODEL A3LA RG Revision A May 20 2020 451 93156 009A Copyright 2020 by NAL Research Corporation 11100 Endeavor Court Suite 300 Manassas Virginia 20109 USA Phone 703 392 1136 E mail contact nalresearch com ...

Page 2: ...he performance or nonperformance of any products accessories facilities or services or information except as expressly stated in this guide and or the Product and or satellite service documentation Any other standards of performance guarantees conditions and warranties are hereby expressly excluded and disclaimed to the fullest extent permitted by the law This disclaimer and exclusion shall apply ...

Page 3: ...oration 451 93156 009A 3 Revision History Revision Date Description Author 1 3 8 2 16 Initial version P Kormendi A 5 20 20 Added revision history Updated address Updated document number Added AT VOLB command P Kormendi ...

Page 4: ...ral Link DPL 13 5 0 IRIDIUM ANTENNA CONNECTOR 13 6 0 GPS ANTENNA CONNECTOR 14 7 0 SIM CARD INTERFACE 14 8 0 LED DISPLAY 15 9 0 CONFIGURATION SETTINGS 15 10 0 MODES OF OPERATION 15 11 0 AES 256 BIT ENCRYPTION 16 12 0 SELF MONITORING TO PREVENT MODEM LOCKUP 16 13 0 MOUNTING RECOMMENDATIONS 17 14 0 TECHNICAL SUPPORT 17 APPENDIX A AT INTERFACE 18 APPENDIX B S REGISTER DEFINITIONS 89 APPENDIX C SUMMARY...

Page 5: ...NAL Research Corporation 451 93156 009A 5 APPENDIX H MIL STD 810G CERTIFICATION 116 APPENDIX I EXPORT COMPLIANCE INFORMATION 117 APPENDIX J MECHANICAL DRAWINGS 118 ...

Page 6: ...Subscriber Units Modems Phones Trackers LBT L Band Transceiver NIPRNET Non Secure Internet Protocol Router Network NOC Network Operation Center OFAC Office of Foreign Asset Controls PSTN Public Switch Telephone Network RHCP Right Hand Circular Polarization RUDICS Router Based Unrestricted Digital Internetworking Connectivity Solution SBD Short Burst Data SIM Subscriber Identity Module SMA Sub Mini...

Page 7: ...d IP67 rating Services supported include 1 Dial Up Data Switch 2 Direct Internet Connection or NIPRNET Connection 3 Direct Internet Connection using Apollo Emulator only for DoD EMSS Gateway 4 Short Message Service SMS 5 Short Burst Data SBD 6 Router Based Unrestricted Digital Internetworking Connectivity Solution RUDICS 7 Voice when combined with the DPL audio handset IMPORTANT User should not di...

Page 8: ...1626 5 MHz Duplexing Method TDD Multiplexing Method TDMA FDMA Link Margin 12 dB average Average Power during a Transmit Slot Max 7W Average Power during a Frame Typical 0 6W Receiver Sensitivity at 50 Typical 118 dBm 2 3 Electrical Specifications Main Input Voltage Range 4 0V to 5 4V or 5 0V to 32 0V Average Standby Current 175mA 5 0VDC with 5 0V to 32 0V setup Average Data Call Current 420mA 5 0V...

Page 9: ...0 Additional Information on SBD AN2012 04 V4 0 3 0 GPS RECEIVER SPECIFICATIONS The standard A3LA RG hardware configuration has a u blox MAX 6Q GPS receiver Below are the specifications Receiver Type 50 channel u blox 6 engine L1 frequency 1575 42 MHz carrier frequency C A code SBAS WAAS EGNOS MASA Maximum update rate 5Hz Accuracy Horizontal Position 2 5m CEP SBAS 2 0m CEP Acquisition typical Cold ...

Page 10: ...e PIN SIGNAL DESCRIPTION INTERFACE 1 EXT_ON_OFF Power on off control input DC Power 2 12VDC Output Voltage to Power the DPL Handset DC Power 3 EXT_GND External GND input DC Power 4 EXT_B External 4 0V 5 4V or 5 0V 32 0V DC Power 5 SPKR_AUD Speaker audio output Analog Audio 6 DA_TX PCM digital audio output Digital Audio 7 RI RS232 Ring Indicate RS232 Data 8 RTS RS232 Request To Send RS232 Data 9 TX...

Page 11: ...y needs of the DTE must be addressed separately WARNING DO NOT use the modem s input voltage to bring the DTR line high when the input voltage is higher than 5VDC Supplying voltage higher than 5VDC to the DTR line will permanently damage the A3LA RG NOTE The Iridium s Direct Internet service when using the Windows based Apollo client requires DCD to be present hence it is incompatible with a 3 wir...

Page 12: ...ff its internal power on reset circuit requires two seconds for voltages to decay Users should not re apply power until this time has elapsed If the two second wait time is not adhered to the reset circuit may not operate and the A3LA RG could be placed in a non operational state The state is not permanent and can be rectified by the above procedure The A3LA RG will automatically turn on off when ...

Page 13: ...ffic The protocol used on these ports is made available to application developers only on a case by case basis and after appropriate Non disclosure Agreements and or License Agreements are executed 5 0 IRIDIUM ANTENNA CONNECTOR The A3LA RG modem uses a single TNC female 50 ohm connector for both transmit and receive see Figure 4 Cable loss between the modem and the antenna is critical and must be ...

Page 14: ...tenna as well as dual Iridium GPS antenna for use with the A3LA RG For low cost and applications where small form factor and light weight are required NAL Research highly recommends model SAF7352 IG 7 0 SIM CARD INTERFACE The A3LA RG modem contains an integrated SIM reader The modem uses and requires an Iridium SIM chip for operation The SIM chip is inserted into the opening located on top of the ...

Page 15: ...ory default and stored The active configuration is the set of parameters currently in use They can be changed by the users individually via specific AT commands The factory default configuration is stored in permanent memory This configuration can be recalled at any time through use of the AT Fn command Two groups of settings or profiles can be stored as user defined configurations Users first cre...

Page 16: ... Department of Commerce National Institute of Standards and Technology May 25th 2001 2 Security Requirements for Cryptographic Modules Annex A Approved Security Functions for FIPS PUB 140 2 US Department of Commerce National Institute of Standards and Technology February 19th 2003 12 0 SELF MONITORING TO PREVENT MODEM LOCK UP The 9523 RF board can sometimes lock up when being inactive over a long ...

Page 17: ...24 Hours The micro controller will force a power cycle of the 9523 board every 24 hours Power cycle will not happen during a data voice call This can be enabled or disabled with the MPTFP command 13 0 MOUNTING RECOMMENDATIONS The A3LA RG has four features on its bottom surface that can aid in its mounting see Appendix J These four features are pre drilled at a minimum depth of 0 25 inch to accept ...

Page 18: ...is with other modems but has no effect on the operation of the A3LA RG since it has no meaning in the Iridium environment A 3 Extended Commands Extended commands perform actions or set parameters that extend the capability of the A3LA RG beyond that which is allowed by basic commands In some cases they were designed for the GPS receiver encryption lock up monitoring and non PSTN networks such as t...

Page 19: ...ter are used for commands or parameters the high order bit is ignored Upper case characters are equivalent to lower case characters A 5 Command Entry An AT command is a string of characters sent by the DTE to the A3LA RG while it is in command mode A command string has a prefix a body and a terminator The prefix consists of the ASCII characters AT or at The body is a string of commands restricted ...

Page 20: ...v gsn cmee cpbr 1 12 msvtr all lower case AT X 0 V GSN CMEE CPBR 1 12 MSVTR all upper case ATX 0 V GSN CMEE CPBR 1 12 MSVTR space omitted between AT and X ATX0 V GSN CMEE CPBR 1 12 MSVTR space omitted between ATX and 0 ATX V GSN CMEE CPBR 1 12 MSVTR 0 omitted from ATX0 ATX V GSN CMEE CPBR 1 12 MSVTR semicolon separators ATX V GSN CMEE CPBR 1 12 MSVTR no separators A 6 Command Responses A result co...

Page 21: ...R A 8 Command Set Description A 8 1 AT Attention Code This is the prefix for all commands except A and When entered on its own the A3LA RG will respond OK A 8 2 A Repeat Last Command Repeat the last command issued to the A3LA RG unless the power was interrupted or the unit is reset A is not followed by CR A 8 3 Escape Sequence The escape sequence is used to transfer from in call data mode to in ca...

Page 22: ... A3LA RG controls the DCD behavior DCD always indicates the connection status No action compatibility only Allowed values for n are 0 and 1 A 8 11 Dn DTR Option Set the A3LA RG reaction to DTR signal when auto dialing is disabled see the AD command 0 DTR is ignored A DTR signal input is not needed when set to D0 1 If DTR transitions from ON to OFF during a data call and is not restored ON within a...

Page 23: ...ror correction acknowledged mode default A 8 16 Sn DSR Override Define the behavior of DSR 0 DSR always active default 1 Same as 0 A 8 17 V View Active and Stored Configuration View the current active configuration and stored profiles A 8 18 Wn Store Active Configuration Store the active profile in non volatile memory This is used to store user configurations for later use 0 Store current active c...

Page 24: ... can have the following values 0 Autobauding 1 300 bps V 21 2 1200 bps V 22 3 2400 bps V 22bis 6 4800 bps V 32 7 9600 bps V 32 default 65 300 bps V 110 66 1200 bps V 110 68 2400 bps V 110 70 4800 bps V 110 71 9600 bps V 110 name takes the following value 0 data circuit asynchronous ce can only take the following value 1 non transparent Read Command CBST Query the current bearer service type settin...

Page 25: ...RROR result code default 1 Enable numeric error reporting 2 Enable verbose error reporting An example of an error report is CME ERROR y where y can be the number or text listed below 0 A3LA RG RF board failure 1 no connection to A3LA RG 2 A3LA RG RF board adaptor link reserved 3 operation not allowed 4 operation not supported 5 PH SIM PIN required 6 PH FSIM PIN required 7 PH FSIM PUK required 10 S...

Page 26: ... PUK required 100 unknown Read Command CMEE Query mobile equipment error reporting level The response is in the form CMEE x Test Command CMEE List the supported error reporting level The response is in the form CMEE supported x s A 8 29 CPAS Modem Activity Status Exec Command CPAS Query A3LA RG activity status The response is in the form CPAS x where x can take the following values 0 Ready allows ...

Page 27: ... in direction max_dict can take on the following values 512 to 2048 Default is 512 max_string can take on the following values 6 to 250 Default is 6 Read Command DS Query the current data compression parameter settings The response is in the form DS direction comp_neg max_dict max_dict Test Command DS List the supported data compression parameters The response is in the form DS supported direction...

Page 28: ...sponse is in the form DR mode Test Command DR List the supported parameter settings The response is in the form DR supported mode s A 8 33 CEER Extended Error Report Exec Command CEER Execution command causes the A3LA RG to return information text report which offers the user an extended report of the reason of the failure in the last unsuccessful call setup originating or answering or the reason ...

Page 29: ...ormation element 97 nonexistent message type 98 incompatible message 99 nonexistent information element 111 protocol error 127 interworking 128 telephony interworking not supported 129 SM type 0 not supported 130 cannot replace SM 143 unspecified TP PID error 144 coding scheme not supported 145 message class not supported 159 unspecified TP DCS error 160 command not actioned 161 command unsupporte...

Page 30: ...format of messages used with send list read and write commands and unsolicited result codes resulting from received messages Mode can be either PDU mode entire TP data units used or text mode headers and body of the messages given as separate parameters Only PDU mode is supported at this time Valid values for mode are 0 PDU mode default Read Command CMGF Read command returns the current mode set R...

Page 31: ...re not counted in the length pdu GSM 04 11 8 SC address followed by GSM 03 40 9 TPDU in hexadecimal format Test Command CMGL Test command gives a list of all status values supported by the A3LA RG Response is in the form CMGL list of supported stat s A 8 38 CMGR Read SMS Message Exec Command CMGR index Execution command returns the SMS message with location value index from message storage mem1 me...

Page 32: ...turned A 8 40 CMGW Write SMS Message To Memory Exec Command CMGW length stat CR pdu ctrl Z ESC PDU mode Execution command stores a message to memory storage mem2 mem2 is selected by the CPMS command In PDU mode length is the length of the actual TP data unit in octets pdu is the GSM 04 11 8 SC address followed by GSM 03 40 9 TPDU in hexadecimal format By default message status will be set to store...

Page 33: ...result codes in the A3LA RG when A3LA RG DTE link is reserved e g in in call data mode and flush them to the DTE after reservation Otherwise forward them directly to the DTE Valid values for mt are 0 No SMS DELIVER indications are routed to the DTE default 1 If SMS DELIVER is stored in the A3LA RG indication of the memory location is routed to the DTE using unsolicited result code CMTI mem index 2...

Page 34: ... manual oper field is optional format 0 long format alphanumeric oper 1 short format alphanumeric oper 2 numeric oper oper is of string type enclosed by quotes for example IRIDIUM format indicates if the format is alphanumeric or numeric long alphanumeric format can be up to 16 characters long and short format up to 8 characters numeric format is the Location Area Identification number which consi...

Page 35: ... in the following format CPBF index1 number type text CR LF CBPF index2 number type text Test Command CPBF Test command returns the maximum lengths of number and text fields for phonebook entries Response is in the form CPBF nlength tlength where nlength indicates the maximum length of number and tlength shows the maximum length of text A 8 45 CPBR Read Phonebook Entries Exec Command CPBR index1 i...

Page 36: ...ages A 8 47 CPBW Write Phonebook Entry Exec Command CPBW index number type text Execution command writes phonebook entry in location number index in the current phonebook memory storage selected with CPBS Entry fields written are phone number number of address type type and text text associated with the number If those fields are omitted phonebook entry is deleted If index is left out but number i...

Page 37: ...use SIM PIN2 is blocked Note The response SIM PIN2 is somewhat misleading because it indicates one of three possible scenarios 1 PIN1 has already been successfully entered thus equivalent to the READY response 2 No PIN1 is required thus equivalent to the READY response 3 The A3LA RG is waiting for PIN2 used to access Fixed Dialing settings and other subscription based features In any of these thre...

Page 38: ...REG stat when n 1 and there is a change in the A3LA RG network registration status or code CREG stat lac ci when n 2 and there is a change in the registration status of the A3LA RG Valid values for n are 0 disable network registration unsolicited result code default 1 enable network registration unsolicited result code CREG stat 2 enable network registration and location information unsolicited re...

Page 39: ...mand CSCA Read command returns the current service center address Response is in the form CSCA sca tosca A 8 52 CSCB Select Cell Broadcast Message Types Read Command CSCB Read command returns the current values for mode mids and dcss Response is in the form CSCB mode mids dcss Test Command CSCB Test command returns supported modes Response is in the form CSCB list of supported mode s A 8 53 CSCS S...

Page 40: ...Read Command CSMS Read command returns the current message service type set Response is in the form CSMS service mt mo bm Test Command CSMS Test command returns the supported message services of the A3LA RG Response is in the form CSMS list of supported service s A 8 55 CSTA Select Type of Address Set Command CSTA type Select the type of number for the dial command D type is the type of address in...

Page 41: ...ernational access code to be omitted from dial string Direct dial from phonebook locations See subsection below for further details Start up a voice call This modifier should be given after the dialing digits or modifiers Any character received from the DTE during the call establishment phase will cause the call attempted to be terminated A 8 62 1 D Direct Dial From Phonebook The A3LA RG and SIM c...

Page 42: ...ATS0 n answer command 0 Place the A3LA RG on hook A 8 64 S0 n Auto Answer Auto answer This causes the A3LA RG to auto answer the incoming data or voice call 0 Disable auto answer n 0 Enable auto answer after n rings A 8 65 Xn Extended Result Codes Select the response set to be used by the A3LA RG when informing the DTE of the results of a command or data or voice call 0 OK CONNECT RING NO CARRIER ...

Page 43: ... displayed on a handset s volume indicator Test Command CLVL List the supported volume level settings The response is in the form CLVL supported level s A 8 67 CMUT Mute Control Exec Command CMUT n This command is used to enable and disable the uplink voice muting during a voice call n can take one of the following values 0 mute off 1 mute on Read Command CMUT Query the current mute setting The re...

Page 44: ...the supported voice control hangup settings The response is in the form CVHU supported mode s A 8 70 CCLK Real Time Clock Set Command CCLK time Sets the real time clock of the A3LA RG If setting fails ERROR is returned time string type value format is yy MM dd hh mm ss zz where characters indicate year two last digits month day hour minutes seconds and time zone There is no blank space between the...

Page 45: ...is therefore neither played nor muted under control of the MSVLS command A 8 72 MSVTR DTMF Received in Voice Call Set Command MSVTR mode Disable or enable the receiving of DTMF messages from the network mode takes one of the following values 0 Receiving of DTMF disabled default 1 Receiving of DTMF enabled If receiving DTMF is enabled the A3LA R RM RGS sends the following unsolicited result code ev...

Page 46: ...och The return value is formatted as an ASCII hexadecimal number The counter will rollover approximately every 12 years or be changed to prevent a rollover and as a result should not be used as a time source for user applications Iridium system time epoch March 8 2007 03 50 21 00 GMT Note the original Iridium system time epoch was June 1 1996 00 00 11 GMT and was reset to the new epoch in January ...

Page 47: ...G internal memory Current Iridium system time which is a running count of 90 millisecond intervals is used for the time stamp Time stamp is a 32 bit integer displayed in hexadecimal form A 8 76 CCFC Call Forward Service Exec Command CCFC reason mode number type class subaddr satype ti me This command is based on GSM 07 07 2 subclause 7 10 and allows control of the call forwarding supplementary ser...

Page 48: ...m of a range rather than a list CCFC 000 005 A 8 77 CLCC Request Current Call Status Exec Command CLCC Returns the current call status of the A3LA RG The response is a comma separated list of call states The number of call states in the response depends on the number of active call instances e g incoming calls and held calls CLCC stat stat stat where stat State of the A3LA RG 000 Active 001 Call H...

Page 49: ...LP version N0 k1 represents the maximum number of sequentially numbered I frames that may be outstanding at any given time at downlink direction IWF A3LA RG and can take the following values 1 105 Default is 105 k2 represents the maximum number of sequentially numbered I frames that may be outstanding at any given time at uplink direction A3LA RG IWF and can take the following values 1 105 Default...

Page 50: ...he negotiation XID exchange at the start of the most recent data call Note that these may differ from the desired parameters set using WIRLP from power up they are set to hardcoded defaults and will only change as the result of the negotiation The response is in the form WIRLP ver k1 k2 t1 n2 t2 r1 r2 t4 mode Test Command WIRLP List the supported IRLP parameter settings The response is in the form...

Page 51: ... for 15000 ms dtl denotes the delay tolerance in the link delay difference and can take the following values 1 100 in 1 unit Default is 10 Read Command WDLDM Query the current parameter settings The response is in the form WDLDM dldm mi dtl Test Command WDLDM List the supported parameter settings The response is in the form WDLDM supported dldm s supported mi s supported dtl s A 8 84 WDAV Register...

Page 52: ...e checksum o The checksum is the least significant 2 bytes of the summation of the entire SBD message The high order byte must be sent first For example if the DTE were to send the word hello encoded in ASCII to the A3LA RG the binary stream would be hex 68 65 6c 6c 6f 02 14 o The mobile originated buffer will be empty upon power up If any data is currently in the mobile originated buffer it will ...

Page 53: ...indicator or checksum The intent of this command is to provide a human friendly interface to SBD for demonstrations and application development It is expected that most usage of SBD will be with binary messages Once the command is entered the SBD message in the mobile terminated buffer is sent out of the port This command is similar to SBDRB except no length or checksum will be provided The maximu...

Page 54: ...originated buffer MOMSN The MOMSN identifies the sequence number that will be used during the next mobile originated SBD session MT Flag The MT flag indicates the existence of a message in the mobile terminated buffer The response from the A3LA RG is one of the following numeric codes 0 No message in mobile terminated buffer 1 Message in mobile terminated buffer MTMSN The MTMSN identifies the sequ...

Page 55: ...ode 6 XXX Factory identity 7 XXXXXXXX Hardware specification A 8 94 CIER Indicator Event Reporting Set Command CIER mode sigind svcind The set command enables or disables sending of the CIEV unsolicited result code by the A3LA RG in case of indicator state changes mode controls the processing of the CIEV unsolicited result codes mode 0 Disable indicator event reporting do not send CIEV unsolicited...

Page 56: ...ion without receiving continual notifications of changes in signal strength Read Command CIER Query the current indicator event reporting settings The response is of the form CIER mode sigind svcind Test Command CIER List the supported settings The response is of the form CIER supported mode s supported sigind s supported svcind s Note In mode 1 the DTE may miss some indicator state changes if the...

Page 57: ...f the command waits for an updated signal strength reading to become available This will usually be within two seconds of issuing the command If the A3LA RG is in the process of acquiring the system or in a satellite handoff a delay in response of up to 10 seconds may be experienced If the A3LA RG has no SIM is awaiting a SIM PIN entry has an invalid SIM or has otherwise not proceeded to successfu...

Page 58: ...ocked 1 Locked 2 Permanently locked A 8 98 CVMI Voicemail Indication Exec Command CVMI Query the status of the voicemail indication flag The response is of the form CVMI vmi where vmi is 0 No voicemail indication has been received 1 A voicemail indication has been received The voicemail indication flag indicates whether a voicemail notification message has been received from the voicemail system T...

Page 59: ...er type where number is the phone number of the calling party in quotes in the format specified by type type indicates the type of number 129 Dial string without the international access character 145 Dial string which includes the international access character Read Command CLIP Query the current CLI Presentation provisioning status and the status of the CLIP unsolicited result code The response ...

Page 60: ... in temporary mode defaulting to presentation restricted 4 CLIR provisioned in temporary mode defaulting to presentation allowed A 8 102 IPR Fixed DTE Rate Set Command IPR rate autoflag Set the data rate at which the A3LA RG will accept commands The change in data rate takes effect after the result code e g OK is received by the DTE rate takes the following values 1 600 bps 2 1200 bps 3 2400 bps 4...

Page 61: ... is limited only by the maximum mobile originated message length of 1960 bytes The mobile originated buffer will be empty upon power up If any data is currently in the mobile originated buffer it will be overwritten Command Response For the AT SBDWT form 0 SBD message successfully stored in mobile originated buffer 1 SBD message write timeout No terminating carriage return was sent within the tran...

Page 62: ...ackwards compatibility with existing DTEs which do not use SBD Ring Alert functionality For SBD calls invoked with this command The SBD session type is fixed at type 0 MO call The SBD Delivery Short Code will be the value specified by the SBDDSC command An SBD Detach is performed as part of the call No SBD location update is performed DTEs requiring SBD Ring Alert functionality should use the exte...

Page 63: ...ed MT queued is a count of mobile terminated SBD messages waiting at the GSS to be transferred to the A3LA RG A 8 106 SBDIX A Short Burst Data Initiate an SBD Session Extended Note The SBDIX command must be used in place of the SBDI command for DTEs wishing to make use of SBD Ring Alert functionality Exec Command SBDIX A location This command initiates an SBD session between the A3LA RG and the GS...

Page 64: ...ansaction The field can take on the following values Gateway reported values 0 MO message if any transferred successfully 1 MO message if any transferred successfully but the MT message in the queue was too big to be transferred 2 MO message if any transferred successfully but the requested Location Update was not accepted 3 4 Reserved but indicate MO session success if used 5 8 Reserved but indic...

Page 65: ...h The MT length is the length in bytes of the mobile terminated SBD message received from the GSS If no message was received this field will be zero MT queued MT queued is a count of mobile terminated SBD messages waiting at the GSS to be transferred to the A3LA RG A 8 107 SBDDSC Short Burst Data Delivery Short Code Set Command SBDDSC dsc Set the Delivery Short Code DSC which provides dynamic rout...

Page 66: ...ber of manual and automatic registrations to one every 3 minutes Successive attempts within 3 minutes will return an error code indicating that the DTE should try later see error 36 below Note A user can send an MO SBD message and register at the same time by using the SBDIX command The SBDIX command always performs a registration attempt and should be used for an application requiring SBD Ring Al...

Page 67: ...indicate Location Update failure if used 15 Access is denied A3LA RG reported values 16 Modem has been locked and may not make SBD calls see CULK command 17 Gateway not responding local session timeout 18 Connection lost RF drop 19 Link failure A protocol error caused termination of the call 20 31 Reserved but indicate failure if used 32 No network service unable to initiate call 33 34 Reserved bu...

Page 68: ... its location has changed see event below it is then the responsibility of the DTE to register via SBDREG or SBDIX SBDIX allows the DTE to register while including an MO message and or retrieving any MT message that is pending at the GSS When auto registration is enabled mode 1 or 2 the A3LA RG reports relevant events to the DTE by issuing an unsolicited result code AREG event reg error event 0 Su...

Page 69: ...es the sequence number that will be used during the next mobile originated SBD session MT Flag The MT flag indicates the existence of a message in the mobile terminated buffer The response from the A3LA RG is one of the following numeric codes 0 No message in mobile terminated buffer 1 Message in mobile terminated buffer MTMSN The MTMSN identifies the sequence number that was used in the most rece...

Page 70: ...ery are supported Parameter n is used to disable enable the presentation of the unsolicited result code to the DTE when the Call Waiting service is enabled Command is abortable in the cases when the network is interrogated The interaction of this command with other commands based on other GSM supplementary services is described in the GSM standard Defined values n sets shows the result code presen...

Page 71: ...refer GSM 04 08 7 subclause 10 5 4 7 default 145 when dialing string is international number otherwise 129 If the network rejects a request to activate deactivate the Call Waiting service due to it not being provisioned or for other reasons the reported CME ERROR code will be 133 requested service option not subscribed This is strictly speaking a GPRS related code GSM 07 07 2 subclause 9 2 2 but i...

Page 72: ...isable the PIN neither it nor the CPIN need to be issued again unless the PIN function is reactivated The following parameter values are currently supported fac CS CNTRL Surface Enable Disable Phone Lock feature The current Phone Unlock Code is required as passwd SC SIM Activate Deactivate SIM card PIN Code in which the SIM asks password in ME power up The PIN code is required as passwd FD SIM fix...

Page 73: ...ddressed the user interface should just use AB mode 0 Disable Deactivate 1 Enable Activate passwd string type enclosed by for example 1234 Note Factory default SIM card PIN Code is 1111 Note Factory default Phone Unlock Code is 1234 classx is a sum of integers each representing a class of information 1 voice 2 data 4 fax This parameter defaults to 7 equal to all classes but the A3LA RG only suppor...

Page 74: ...hich present the available facilities and the maximum length of their password Response is in the form CPWD list of supported fac pwdlength s where pwdlength indicates the maximum length for the password Note CPWD is closely related to CLCK and CPIN See these commands for additional information A 8 115 CSDT Sidetone Exec Command CSDT sidetone enabled This command controls the A3LA RG RF board side...

Page 75: ... Network Out Of Order 41 Temporary Failure 42 Congestion 47 No Resources 50 Facility Not Subscribed 69 Facility Not Implemented 81 Invalid RP MR 95 Semantic Error 96 Mandatory IE Error 97 RP MT Not Implemented 98 Bad State 99 IE Not Implemented 111 Unspecified Error 127 Interworking Error 128 Success 129 Success Ack 253 No Transaction Id 254 CM Internal Error 255 RL Timeout Values up to 127 are de...

Page 76: ...te Used zz where mm Month 01 12 01 may appear for an Invalid Position Fix dd Day 01 31 06 may appear for an Invalid Position Fix yyyy Year 0000 9999 1980 may appear for Invalid Position Fix zz Number of satellite used to obtain information A 8 119 PG GPS GPS Automatically Sent Exec Command PG CD level mode rate messages This command automatically sets the unit to return GPS information at a set ra...

Page 77: ...2 or 0x0C Not Used 13 or 0x0D Not Used 14 or 0x0E Not Used 15 or 0x0F Not Used Test Command PG Returns the current settings with the messages displayed as a hexadecimal number showing what messages are set to be sent A 8 120 PL GPS Display Position to 4th Decimal Place Exec Command PL This command returns position with the format shown below The Invalid Position Fix message will appear only if the...

Page 78: ...ontain GPS information Command Response PLOC Latitude mm nnnnn N S Longitude ooo pp qqqqq E W Altitude meters Position Fix Invalid Position Fix Valid Position Fix or Dead Reckoning Satellites Used zz where Latitude in degrees 00 90 mm Latitude in minutes 00 59 nnnnn Fraction of minutes 00000 99999 N S Either North or South depending on the direction ooo Longitude in degrees 000 180 pp Longitude in...

Page 79: ...Speed displayed with one decimal place h Heading in degrees from true north ranging from 0 to 360 zz Number of satellites used to obtain information A 8 124 PVEL GPS GPS Velocity Exec Command PVEL This command returns velocity consisting of speed and direction with the format shown below The Invalid Position Fix Message will appear only if the GPS receiver could not acquire a position fix Command ...

Page 80: ... in double quotes and cannot be more than 20 characters long A 8 127 ADR Auto Dial Retry Exec Command ADR delay This command sets the time to delay in between dial attempts in auto dial mode delay The number of seconds to delay The value must be between 5 and 255 seconds A 8 128 CCOP Change Crypto Officer Password Encryption Exec Command CCOP old new Change the Crypto Officer s password from facto...

Page 81: ...ey for Encryption Encryption Exec Command KE password key Allow entering the 32 bytes for the AES encryption key These bytes must be entered with mandatory leading 0s where each byte is represented by 2 hexadecimal uppercase characters for a total of 64 digits The password and key will not be reset by F The password and key will not be echoed This command must be entered twice before an update is ...

Page 82: ...n modes The response is in the form MPTDC supported mode s A 8 136 MPTFP Modem Power Toggle Forced Power cycle Exec Command MPTFP mode Enable or disable the modem power toggle forced power cycle functionality Every twenty four hours the modem will attempt to find a period of inactivity to cycle the power If it cannot find a period of inactivity it will retry a set number of times after which it wi...

Page 83: ...ter there has been a two minute period of inactivity there will be a check sent to determine if the modem is still responding If it is not the modem will power cycle and return in command mode mode takes the following values 0 Disable the MPT functionality out of a data call 1 Enable the MPT functionality out of a data call Read Command MPTNC Query the current modem power toggle not data connectio...

Page 84: ...Packet Send Timer Exec Command PKTST timer Sets the timeout interval for when to send a packet if the packet threshold size has not been reached timer can have the following values 1 600 Timeout value in 10th of seconds Read Command PKTST Query the current value of the send timeout if the packet size threshold is not reached Response is in the form PKTST timer Test Command PKTST List the supported...

Page 85: ...to toggle its power state When the controller receives this it brings the modem s on off pin to ground for 300ms and releases it Command must be the only command following the AT A 8 145 RESETMODEMVF Reset Modem Verify Exec Command RESETMODEMVF Causes the modem to be recovered and to have the recovery verified When the controller receives this it runs the same code as is run when the checks have f...

Page 86: ... is in the form SE imei blocks timeout Test Command SE Test command returns lists of memory storages supported by the A3LA RM Response is in the form SE list of supported imei s list of supported blocks s list of supported timeout s A 8 148 SMSD SMS Delete Exec Command SMSD n This command deletes a message from SMS flash memory n The index of the message to delete The index must be between 1 and 1...

Page 87: ...sword n Set the modem on whether to use encryption or not at power up The factory default setting is not to use encryption at power up Setting the UE command will take effect only after power has been cycled This command will return an error if the encryption password has not been set password The Crypto Officer Password which must be enclosed by two single quotes n 0 is not to use encryption and ...

Page 88: ...NAL Research Corporation 451 93156 009A 88 1 Enable volume boost Read Command VOLB Returns the current value Test Command VOLB Returns a fixed message indicating the range of acceptable values ...

Page 89: ...lue in the range 0 to 255 B 1 4 Referenced S Register Read Read the value of the current referenced S register The current referenced S register is that which was last acted upon by a direct reference ATSr read ATSr or write ATSr n command B 1 5 n Referenced S Register Write Set the value of the current referenced S register to n The current referenced S register is that which was last acted upon ...

Page 90: ... reflect the speaker volume setting bits 2 and 3 reflect the speaker on off setting and bits 4 5 and 6 reflect the Xn setting Yes S23 0 255 61 Bitmap register bit 0 autobaud setting bits 1 3 DTE baud rate bits 4 5 parity bits 6 7 guard tone Yes S25 0 255 5 Sets length of time in hundredths of a second that a change in the DTR status has to persist for before it is recognized S27 0 255 9 Bitmap reg...

Page 91: ...ed 2 Enable CARRIER XXXX 3 Enable PROTOCOL XXXX 5 Enable COMPRESSION XXXX Register Number Range Default Description Sr n Command Write Protected in SAC0201 S13 0 255 0 Bitmap register where bits 0 1 reflect the DCE data bits bits 2 3 reflect the DCE stop bits bits 4 6 reflect the DCE parity settings and bit 7 is not used Yes S15 0 2 0 Auto answer mode selection Bits 0 1 0 auto answer voice and dat...

Page 92: ...reflect NPI settings for dial string S51 0 255 0 V 42bis maximum codewords P1 high byte Yes S52 0 255 128 V 42bis maximum codewords P1 low byte S54 0 255 20 V 42bis maximum string size P2 S58 0 255 0 V 42bis compression direction P0 S96 0 255 0 IRLP version number N0 parameter S98 0 105 105 IRLP k iwf isu parameter S99 0 105 105 IRLP k isu iwf parameter S100 1 15 15 IRLP N2 parameter S102 26 255 3...

Page 93: ...alue in 1000 ms unit S125 1 100 10 Dynamic link delay measurement delay tolerance WDLM dtl setting Value in unit S126 0 255 2 Bitmap register 0 Ignore Dn command specified reaction to DTR ON to OFF transitions Disconnect as reaction to Hn command OK response given 1 Ignore Dn command specified reaction to DTR ON to OFF transitions Ignore Hn command OK response given 2 Comply with Dn command specif...

Page 94: ...call connection established at 2400 bps 11 CONNECT 4800 Data call connection established at 4800 bps 12 CONNECT 9600 Data call connection established at 9600 bps 13 CONNECT 7200 Data call connection established at 7200 bps 14 CONNECT 12000 Data call connection established at 12000 bps 15 CONNECT 14400 Data call connection established at 14400 bps 16 CONNECT 19200 Data call connection established a...

Page 95: ... as verbose DR V42B Data call connected with V 42bis compression enabled on both transmit and receive direction Numeric V0 Verbose V1 Description as verbose CR ASYNC Asynchronous transparent data connection as verbose CR REL ASYNC Asynchronous non transparent data as verbose CME ERROR error Command not accepted as verbose CREG stat lac ci Registration indication status unsolicited if enabled as ve...

Page 96: ...Numeric V0 Verbose V1 Description as verbose READY Ready to receive SBD binary message data from DTE as verbose AREG event reg error Auto registration event report as verbose CIEV sig value Indicator event report as verbose ADJANT deployed User antenna adjustment is required ...

Page 97: ...A RG default configuration to no flow control SBD automatic notifications enabled D 3 Power on to Sending an SBD Message The DTE will power up the A3LA RG wait for the A3LA RG to acquire the network and send a 70 byte message To A3LA RG from DTE To DTE from A3LA RG Description AT CGMI Get manufacturer name Iridium OK AT CGMM Get model number model ID OK AT CGMR Get revision Call processor version ...

Page 98: ...he default configuration OK CIEV 1 1 Wait for the A3LA RG to acquire the network AT SBDWB 70 READY Transfer message to A3LA RG binary transfer 0 AT SBDIX Perform SBD session SBDIX 0 23 0 1 0 0 AT SBDD0 Clear the MO message buffer OK To A3LA RG from DTE To DTE from A3LA RG Description AT SBDREG Query the A3LA RG registration status SBDREG 0 A3LA RG is detached i e un registered AT SBDREG Tell the A...

Page 99: ...237 90 2 A3LA RG informs DTE that a 90 byte message was successfully received with MTMSN 237 and that two further MT messages are queued at the GSS AT SBDRB DTE retrieves the received message from the A3LA RG binary transfer To A3LA RG from DTE To DTE from A3LA RG Description AT SBDREG Query the A3LA RG registration status SBDREG 2 A3LA RG is registered AT SBDAREG 2 DTE sets the automatic registra...

Page 100: ...00 Call connected at DTE rate of 9600 ATS0 2 To automatically answer a call register 0 should be set to a non zero value RING Indicates arrival of call request CONNECT Call connected at DTE rate of 9600 To A3LA RG from DTE To DTE from A3LA RG Description AT CBST 6 0 1 Asynchronous modem 4800 bps and IRLP OK AT CR 1 Enable reporting OK ATD1234567890 Dial remote modem OK CR REL ASYNC Call connected ...

Page 101: ...ta command aborts call command aborts call n a Ringing Voice CLCC 004 CPAS 003 CRING VOICE Ringing Data CLCC 004 CPAS 003 CRING DATA In call Voice CLCC 000 CPAS 000 or 003 n a In call Data CLCC 000 CPAS 004 n a On hold Voice CLCC 001 CPAS 000 or 003 n a Call waiting Voice 2 or more call states one of which is 004 e g CLCC 000 004 CPAS 000 or 003 n a ...

Page 102: ...A RG 4 Keep the power cable between the A3LA RG and the power source as short as possible 5 Use both power input pins on the multi interface connector Power consumption of the A3LA RG can be divided into five distinct operating segments 1 standby 2 data switch RUDICS call 3 SBD transmission 4 SMS transmission and audio call Typical current drawn and power consumption for these cases are shown in p...

Page 103: ...tage DC 0 00 0 05 0 10 0 15 0 20 0 25 0 30 Current A 4 0V to 5 5V 5 0V to 32V Figure E1 Average Current Drawn During Standby 0 5 10 15 20 25 30 35 Voltage DC 0 25 0 50 0 75 1 00 1 25 1 50 Power W 4 0V to 5 5V 5 0V to 32V Figure E2 Average Power Consumption During Standby ...

Page 104: ...tage DC 0 0 0 2 0 4 0 6 0 8 Current A 4 0V to 5 5V 5 0V to 32V Figure E3 Average Current Drawn During Standby with DPL Handset 0 5 10 15 20 25 30 35 Voltage DC 0 1 2 3 4 Power W 4 0V to 5 5V 5 0V to 32V Figure E4 Average Power Consumption During Standby with DPL Handset ...

Page 105: ...urrent Drawn During a Data Switch Call 0 5 10 15 20 25 30 35 Voltage DC 0 0 0 2 0 4 0 6 0 8 Current A 4 0V to 5 5V 5 0V to 32V 0 5 10 15 20 25 30 35 Voltage DC 0 1 2 3 4 Power W 4 0V to 5 5V 5 0V to 32V Figure E6 Average Power Consumption During a Data Switch Call ...

Page 106: ... DC 0 0 0 1 0 2 0 3 0 4 0 5 Current A 4 0V to 5 5V 5 0V to 32V Figure E7 Average Current Drawn During an SBD Transmission 0 5 10 15 20 25 30 35 Voltage DC 0 00 0 75 1 50 2 25 3 00 Power W 4 0V to 5 5V 5 0V to 32V Figure E8 Average Power Consumption During an SBD Transmission ...

Page 107: ...DC 0 00 0 15 0 30 0 45 0 60 Current A 4 0V to 5 5V 5 0V to 32V Figure E9 Average Current Drawn During an SMS Transmission 0 5 10 15 20 25 30 35 Voltage DC 0 0 0 6 1 2 1 8 2 4 3 0 Power W 4 0V to 5 5V 5 0V to 32V Figure E10 Average Power Consumption During an SMS Transmission ...

Page 108: ... 0 0 3 0 6 0 9 1 2 1 5 Current A 4 0V to 5 5V 5 0V to 32V Figure E11 Average Current Drawn During a Voice Call Using DPL Handset 0 5 10 15 20 25 30 35 Voltage DC 2 3 4 5 6 Power W 4 0V to 5 5V 5 0V to 32V Figure E12 Average Power Consumption During a Voice Call Using DPL Handset ...

Page 109: ...lite projects 48 beams on the surface of earth which may be viewed as providing coverage cells on the ground similar to terrestrial systems Each beam is approximately 600 km in diameter The 66 satellite constellation has the potential to support a total of 3 168 spot beams however as the satellite orbits converge at the poles overlapping beams are shut down The satellite footprint is 4 700 km in d...

Page 110: ... and operates an Iridium gateway located in Hawaii United States Each gateway generates and controls all user information pertaining to its registered users such as user identity geo location and billing items The gateway also provides connectivity from the Iridium system to the terrestrial based networks such as the PSTN F 2 Description of the Iridium Network Data Capabilities For data communicat...

Page 111: ...te LAN or an Internet service provider as shown in Figure F2 The handshaking and protocols are established between the modems independent of the landline The Iridium dial up data service functions in much the same way as the PSTN dial up connectivity From the perspective of a computer the Iridium modem is just another external modem The only difference is that the dialed telephone number must conf...

Page 112: ...gure B3 illustrates how Iridium Internet NIPRNet call is routed Direct Internet service can be enhanced using Windows based emulated point to point protocol PPP called the Apollo Emulator With the use of the Apollo Emulator software instead of Microsoft Windows dial up networking Direct Internet service can reduce connection time and improve data throughput In addition the Apollo Emulator offers a...

Page 113: ...e 140 octet byte maximum message size SMS service is a store and forward method of transmitting messages to and from an Iridium modem The short message from the modem is stored in a central Short Message Center SMSC which then forwards it to the destination In the case that the recipient is not available the SMSC will attempt to deliver the SMS until it is delivered or the validity period expires ...

Page 114: ...way The Iridium network can locate an ISU to within 10 km only about 78 of the time The so called error ellipse can have a large eccentricity with the major axis oriented in the azimuth dimension and the minor axis oriented in the radial dimension The position of the ISU in the radial dimension relative to the satellite can almost always be determined to within 10 km with just one measurement Erro...

Page 115: ...liance could void the user s authority to operate the equipment CE Compliance The 9523 when marked with the CE symbol complies with the European Community Council Directive for R TTE 99 5 EC provided that the integrator user adheres to the instructions detailed in this LBT Interface Specification This product is in compliance with applicable ETSI standards Compliance with the requirements of ETSI ...

Page 116: ...NAL Research Corporation 451 93156 009A 116 ...

Page 117: ...e laws and regulations Failure to comply can result in the imposition of fines and penalties the loss of export privileges and termination of your contractual agreements with NAL Research The export and re export of NAL Research products and services are subject to regulation by the Export Administration Regulations 15 CFR 730 744 as administered by the U S Department of Commerce Bureau of Industr...

Page 118: ...NAL Research Corporation TN2012 32 V1 0 118 ANICAL DRAWINGS ...

Page 119: ...NAL Research Corporation TN2012 32 V1 0 119 ...

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