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Copyright © 2021 by NAL Research Corporation 

11100 Endeavor Ct., Suite 300 
Manassas, Virginia 20109 USA 

Phone: 703-392-1136 

Email: [email protected] 

A3LA-RM User Guide 

Version B 

April 4, 2022 

 

 

 

 

 

 

451-93156-002B 

 

Summary of Contents for A3LA-RM

Page 1: ...pyright 2021 by NAL Research Corporation 11100 Endeavor Ct Suite 300 Manassas Virginia 20109 USA Phone 703 392 1136 Email contact nalresearch com A3LA RM User Guide Version B April 4 2022 451 93156 00...

Page 2: ...use or related to the 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 serv...

Page 3: ...002B 3 of 172 REVISION HISTORY Revision Date Description 1 3 8 2 16 Initial version A 5 20 20 Added revision history Updated address Updated document number Added AT VOLB command A 1 06 09 2021 Update...

Page 4: ...https www nalresearch com support documentation downloads Reference Title Revision Date 1 A3LA RM Product Information 05 03 2019 2 Getting Started With Model A3LA RM TN2012 21 V1 1 04 08 2013 3 SatTe...

Page 5: ...ace 27 5 LED Display 28 6 Configuration Settings 29 7 Modes of Operation 30 8 AES 256 Bit Encryption 31 9 Self monitoring to Prevent Modem Lockup 32 10 Mounting Recommendations 33 11 Technical Support...

Page 6: ...B 18 Wn Store Active Configuration 43 B 19 Yn Designate Default Reset Profile 43 B 20 Kn Control Break 43 B 21 R Display Registers 44 B 22 Pn Power 44 B 23 CBST Select Bearer Service Type 44 B 24 CGM...

Page 7: ...ter PIN 63 B 49 CPMS Select Preferred SMS Message Storage 64 B 50 CREG Network Registration 65 B 51 CSCA SMS Service Center Address 66 B 52 CSCB Select Cell Broadcast Message Types 66 B 53 CSCS Select...

Page 8: ...Force IRLP Renegotiation 83 B 82 WTM IRLP Test Mode 83 B 83 WDLDM IRLP Dynamic Link Delay Measurement 84 B 84 WDAV Register or Deregister an RS232 DAV Data Peripheral 84 B 85 SBDWB Short Burst Data Wr...

Page 9: ...111 SBDSX Short Burst Data Status Extended 110 B 112 CCWA Call Waiting service 111 B 113 CLCK Facility Lock 113 B 114 CPWD Change Password 116 B 115 CSDT Sidetone 117 B 116 CDSI Report SMS status 117...

Page 10: ...MSD SMS Delete 130 B 144 SMSE SMS Erase 130 B 145 SMSR SMS Read 130 B 146 SSI Send Start Up Information 131 B 147 STR Self Test Run Encryption 131 B 148 UE Use Encryption 131 B 149 VOLB Volume Boost 1...

Page 11: ...pendix G The Iridium Network 160 G 1 Iridium Network Data Capabilities 161 G 2 Dial up Data Service 162 G 3 Direct Internet Connection 164 G 4 Short Burst Data 165 G 5 Short Messaging Service 165 G 6...

Page 12: ...ge Current Drawn During a Data Switch Call 156 Figure 11 Average Power Consumption During a Data Switch Call 156 Figure 12 Average Current Drawn During an SBD Transmission 157 Figure 13 Average Power...

Page 13: ...esult Codes 141 Table 10 GSM 7 07 Result Codes 143 Table 11 GSM 7 05 Result Codes 143 Table 12 Iridium Specific Result Codes 144 Table 13 Unit Identification 145 Table 14 Default Configuration 146 Tab...

Page 14: ...C Direct current DCD Data carrier detect DCE Data circuit terminating equipment DoD Department of Defense DPL Digital Peripheral Link DSN Defense Switch Network D sub D subminiature DSR Data set ready...

Page 15: ...low earth orbit NIPRNet Non classified Internet Protocol Router Network NMEA National Marine Electronics Association NOC Network Operation Center OFAC Office of Foreign Asset Controls PCM Pulse code m...

Page 16: ...16 of 172 TCP Transmission Control Protocol TDD Time division duplex TDMA Time division multiple access TNC Threaded Neill Concelman TON Type of number UART Universal asynchronous receiver transmitte...

Page 17: ...sending standard AT commands via an RS232 serial port A DTE can be a desktop computer a laptop computer a smartphone or even a microcontroller The A3LA RM is functionally compatible with models 9522B...

Page 18: ...ide Version B Document Number 451 93156 002B 18 of 172 Important Do not disassemble the A3LA RM for repair or services The warranty is voided if the A3LA RM is disassembled Return it to NAL Research f...

Page 19: ...ge to power the DPL handset DC Power 3 EXT_GND External GND input DC Power 4 EXT_B External 4 0 V 5 4 V or 5 0 V 32 0 V DC Power 5 SPKR_AUD Speaker audio output Analog Audio 6 DA_TX PCM digital audio...

Page 20: ...control and status signals plus a ground level signal reference as shown in Table 1 This interface allows a connected DTE to utilize the A3LA RM s modem functionality through a set of AT commands The...

Page 21: ...ither 0 or 1 6 Address any needs of the DTE separately Warning DO NOT use the modem s input voltage to bring the DTR line high when the input voltage is higher than 5 VDC Supplying voltage higher than...

Page 22: ...pins and it is set for 5 0 V to 32 V when the jumper is on the middle and right pins Each pin is also labeled with 5 V and 32 V to the left and right pins respectively Note Remember the input voltage...

Page 23: ...at 0 5 V or less 2 5 AUDIO INTERFACE The A3LA RM supports both digital and analog audio Input output I O The digital audio is in PCM format In such format digital audio cannot travel far less than on...

Page 24: ...mposed of two ports a full duplex asynchronous serial link for control messages and a Pulse code modulation PCM digital audio link for audio traffic The protocol used on these ports is made available...

Page 25: ...dance 50 Ohms Oscillator Stability 1 5 ppm NAL Research offers several types of antennas for use with the A3LA RM modem These antennas include the fixed mast mobile magnetic permanent mount and portab...

Page 26: ...channel Be careful when using this signal reading for comparisons between devices Of particular note are the following 1 There is a 0 5 dB tolerance on the calibration 2 Each bar represents a 2 dB inc...

Page 27: ...modem uses and requires an Iridium SIM chip for operation The SIM chip is inserted into the opening located on top of the modem as shown in Figure 4 A plastic locking mechanism is used hold the SIM in...

Page 28: ...locations during field installation These LEDs provide the following information P LED lights up when power is provided to the A3LA RM I LED stays solid when the signal strength is between 3 5 blinks...

Page 29: ...red in permanent memory This configuration can be recalled at any time through use of the AT Fn command Stored Two groups of settings or profiles can be stored as user defined configurations o First c...

Page 30: ...ata Mode When in data mode the A3LA RM transfers data over the Iridium network In data mode 1 All characters from the DTE are sent over the Iridium network to the remote side of the connection 2 No un...

Page 31: ...ES 256 frame synchronization between the A3LA RM and a connected device The encryption and decryption keys are matched in each frame to ensure NIST FIPS 140 2 compliance Instructions on how to use enc...

Page 32: ...still responding If the 9523 responds it starts the counter over again If there is not response it power cycles the 9523 This can be enabled or disabled with the MPTNC command Check When in a Data Ca...

Page 33: ...6 002B 33 of 172 10 MOUNTING RECOMMENDATIONS The A3LA RM has four features on its bottom surface that can aid in its mounting see Appendix L Mechanical Drawing These four features are predrilled at a...

Page 34: ...ECHNICAL SUPPORT For technical support please contact us at Phone 703 392 1136 x203 Fax 703 392 6795 Email contact nalresearch com Technical documents are also available to download on NAL Research s...

Page 35: ...s entered with the appropriate numeric value of n Note that if the numeric parameter n is omitted from the basic command entry a value of zero is assumed for n For example ATXn is set to a value of 4...

Page 36: ...Some extended commands incorporate set read and test modes For example AT MSVTR is entered as AT MSVTR n in set mode to enable disable receipt of DTMF messages It is entered as AT MSVTR in read mode t...

Page 37: ...order bit is ignored Uppercase characters are equivalent to lowercase characters 12 5 COMMAND ENTRY An AT command is a string of characters sent by the DTE to the A3LA RM while it is in command mode...

Page 38: ...nd AT V AT GSN execute extended command AT GSN AT CMEE query the valid range of responses of extended command AT CMEE AT CPBR 1 12 execute extended command AT CPBR with parameters 1 and 12 AT MSVTR qu...

Page 39: ...x typically respond with ERROR Command entries of valid syntax with an out of range parameter can respond in one of three following manners Disallow out of range entry and respond with ERROR Disallow...

Page 40: ...n call command mode without disconnecting from the remote modem After a pause the A3LA RM will respond with OK Register S2 can be used to alter the escape character from the factory default to any hex...

Page 41: ...DTE speed in that order Upon connection the A3LA RM reports its data port speed B 9 ZN SOFT RESET Reset the A3LA RM to a user stored configuration Restores user configuration 0 Restores user configura...

Page 42: ...d Note The register is not updated right after the user requests new values because the requested values may or may not be what Iridium Radio Link Protocol IRLP will use once a data call is establishe...

Page 43: ...ter use Store current active configuration as profile 0 Store current active configuration as profile 1 B 19 YN DESIGNATE DEFAULT RESET PROFILE Select profile for use after power up Select profile 0 d...

Page 44: ...Same as 2 Send break to DTE in sequence with received data Same as 4 default B 21 R DISPLAY REGISTERS Display all the S registers in the system B 22 PN POWER Turn A3LA RM off 0 Turn A3LA RM OFF B 23 C...

Page 45: ...BST List the supported speed name ce Response is in the form CBST supported speed s supported name s supported ce s B 24 CGMI MANUFACTURER IDENTIFICATION Exec Command CGMI Query A3LA RM RF board manuf...

Page 46: ...e the number or text listed below A3LA RM RF board failure no connection to A3LA RM A3LA RM RF board adaptor link reserved operation not allowed operation not supported PH SIM PIN required PH FSIM PIN...

Page 47: ...alization PIN required service provider personalization PUK required corporate personalization PIN required corporate personalization PUK required unknown Read Command CMEE Query mobile equipment erro...

Page 48: ...can have one of the following values ASYNC asynchronous transparent SYNC synchronous transparent REL ASYNC asynchronous non transparent REL SYNC synchronous non transparent Read Command CR Query the...

Page 49: ...t s Data compression will not work if IRLP is in unacknowledged mode Note The register is not updated right after the user requests new values because the requested values may or may not be what IRLP...

Page 50: ...rent reporting level setting The response is in the form DR mode Test Command DR List the supported parameter settings The response is in the form DR supported mode s B 33 CEER EXTENDED ERROR REPORT E...

Page 51: ...rt is CMS ERROR cms_err where cms_err can be one of the numbers below 1 unassigned number operator barred operation not allowed identical to 302 call barred SM transfer rejected destination out of ser...

Page 52: ...ified TP DCS error command not actioned command unsupported TPDU not supported SC busy no SC subscription SC system failure invalid SME address destination SME barred SM rejected SIM SMS storage full...

Page 53: ...ode indicates the 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...

Page 54: ...ssage only applicable to SMs ALL all messages only applicable to CMGL command Response is in the following format for PDU mode CMGL index stat alpha length CR LF pdu CR LF CMGL ind ex stat alpha lengt...

Page 55: ...de CMGR stat alpha length CR LF pdu where stat 0 MT message unread 1 MT message read 2 MO message unsent 3 MO message sent When reading an MT message the first time the status is reported as 0 unread...

Page 56: ...result code CMS ERROR cms_err is returned B 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...

Page 57: ...The response is in the form CMOD supported mode s B 42 CNMI NEW SMS MESSAGE INDICATIONS TO DTE Set Command CNMI mode mt bm ds bfr Set command selects the procedure how receiving of new messages from...

Page 58: ...2 Messages of other data coding schemes result in indication as defined in mt 1 Valid values for bm are No CBM indications are routed to the DTE default Valid values for ds are No SMS STATUS REPORTs...

Page 59: ...eric 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 for...

Page 60: ...re stat indicates 2 current For example COPS 002 IRIDIUM IRIDIUM 90103 000 001 000 002 B 44 CPBF FIND PHONEBOOK ENTRIES Exec Command CPBF findtext Execution command returns phonebook entries from the...

Page 61: ...r Response is in the form CPBR index1 number type text CR LF CPBR index2 number type text Test Command CPBR Test command returns location range supported by the current storage and the maximum lengths...

Page 62: ...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...

Page 63: ...example 1234 Read Command CPIN Read command returns an alphanumeric string indicating whether some password is required or not Response is in the form CPIN code where code can be one of the following...

Page 64: ...is the memory to which writing and sending operations are made mem3 is the memory to which received SMS messages are to be stored If a chosen storage is not appropriate for the A3LA RM final result c...

Page 65: ...CREG stat lac ci when n 2 and there is a change in the registration status of the A3LA RM Valid values for n are disable network registration unsolicited result code default enable network registrati...

Page 66: ...the SMSC address through which mobile originated SMs are transmitted In PDU mode setting is used by the send and write commands but only when the length of the SMSC address coded into pdu parameter eq...

Page 67: ...ported character set of the A3LA RM Response is in the form CSCS list of supported chset s B 54 CSMS SELECT SMS MESSAGE SERVICE Set Command CSMS service Set command selects short messaging service ser...

Page 68: ...dial command D type is the type of address in integer format specified in GSM 4 08 subclause 10 5 4 7 Typical values for type are 129 Unknown type default 145 International number Read Command CSTA Qu...

Page 69: ...and causes the A3LA RM to enter originate mode and act as an auto dialer for connection to other modems or voice lines The usual format is ATDnx x where n is a Dial Modifier and x is a number The foll...

Page 70: ...meric field is str if possible all available memories should be searched for the correct entry str is of string type value and should enclosed by e g John D mem n Originate call to phone number in mem...

Page 71: ...a data call connection OK response is used to inform of a voice call connection only for A3LA R RM RGS 1 As X0 plus CONNECT x where x is the DTE speed CONNECT x response is used for data calls only 2...

Page 72: ...ndicator 5 Equivalent to level 5 displayed on a handset s volume indicator 6 Equivalent to level 6 displayed on a handset s volume indicator 7 Equivalent to level 7 displayed on a handset s volume ind...

Page 73: ...nous transparent REL ASYNC asynchronous non transparent REL SYNC synchronous non transparent FAX facsimile VOICE normal voice Read Command CRC Query the current result code settings The response is in...

Page 74: ...s not supported in Iridium this particular field zz is ignored if it is entered The range of valid years is between 1970 and 2058 For example May 15 2011 22 10 00 hours can be set using CCLK 11 05 15...

Page 75: ...back locally as tones and is therefore neither played nor muted under control of the MSVLS command B 72 MSVTR DTMF RECEIVED IN VOICE CALL Set Command MSVTR mode Disable or enable the receiving of DTMF...

Page 76: ...h pressed or received DTMF tones while in voice call Read Command MSVLS Query the current parameter settings The response is in the form MSVLS mode Test Command MSVLS List the supported parameter sett...

Page 77: ...internal clock to increment the counter In addition at least every 8 hours or on location update or other event that requires re registration the A3LA RM will obtain a new system time from the networ...

Page 78: ...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 B 76 CCFC CALL FORWARD SERVICE Exec Command CCFC reason mode numb...

Page 79: ...hony 2 data subaddr string type sub address not supported by Iridium satype type of sub address not supported by Iridium time string containing number of seconds up to 30 in multiples of 5 When no rep...

Page 80: ...ent currently differs from the standard given in 3GPP TS 27 007 12 subclause 7 18 A change to the interface may be made to become more standard B 78 CNUM READ MSISDN NUMBERS Exec Command CNUM Get the...

Page 81: ...s that may be outstanding at any given time at downlink direction IWF A3LA RM and can take the following values 1 105 Default is 105 k2 represents the maximum number of sequentially numbered I frames...

Page 82: ...ms unit Default is 25 mode is used to indicate the mode of operation and can take on the following values 0 unacknowledged mode of operation 1 acknowledged mode of operation default NOTE For the prop...

Page 83: ...t Read Command WFRNG Query the current parameter setting The response is in the form WFRNG frng Test Command WFRNG List the supported parameter settings The response is in the form WFRNG supported frn...

Page 84: ...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 th...

Page 85: ...n bytes of the SBD message not including the mandatory two byte checksum The maximum mobile originated SBD message length is 1960 bytes The minimum mobile originated SBD message length is 1 byte Once...

Page 86: ...D message not including the length field or the mandatory two byte checksum The high order byte will be sent first The maximum mobile terminated SBD message length is 1890 bytes The checksum is the le...

Page 87: ...ile terminated buffer B 88 SBDD SHORT BURST DATA CLEAR SBD MESSAGE BUFFER S Exec Command SBDD Delete type This command is used to clear the mobile originated buffer mobile terminated buffer or both Th...

Page 88: ...where MO flag The MO flag indicates the existence of a message in the mobile originated buffer The response from the A3LA RM is one of the following numeric codes 0 No message in mobile originated buf...

Page 89: ...fer B 92 CAR AUDIO OUTPUT CONTROL Set Command CAR n This command switches the type of audio output between analog digital and mute no audio output Valid values for n are as follows 0 mute 1 analog Cod...

Page 90: ...nsolicited result codes to the DTE buffer the most recent indicator event for each indicator in the A3LA RM default 1 Enable indicator event reporting buffer the most recent CIEV unsolicited result co...

Page 91: ...ailable 1 Network service is available Network service availability is equivalent to a signal strength greater than 0 The service availability indicator provides a way for the DTE to wait until the A3...

Page 92: ...ny ring alert received 1 Incoming voice call 2 Incoming data call 3 Incoming fax call and sri indicates the SBD ring indication status 0 No SBD ring alert received 1 SBD ring alert received Note It is...

Page 93: ...n the delay in response may exceed the 50 second timeout limit Under such condition an ERROR response will be received To avoid a delayed response due to registration problems issue the CREG command t...

Page 94: ...ULK Query the current SBD lock status of the A3LA RM The response is of the form CULK status status 0 Unlocked 1 Locked 2 Permanently locked B 98 CVMI VOICEMAIL INDICATION Exec Command CVMI Query the...

Page 95: ...Line Identity of the calling party in a mobile terminated call via the CLIP unsolicited result code n controls only the presentation of the unsolicited result code the delivery of Calling Line Identi...

Page 96: ...calling party to the called party in the next mobile originated call n 0 Presentation is determined by the subscription of the CLIR service 1 CLIR invocation i e hide the CLI for the next mobile origi...

Page 97: ...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 4800 bps 5 9600 bps 6 19200 bps default 7 38400 bps autoflag takes th...

Page 98: ...he DTE Once the DTE receives the READY indication the text message must be sent terminated by a carriage return The length of the text message entered in this way is limited only by the maximum mobile...

Page 99: ...rop 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 but indicate failure if use...

Page 100: ...S If there is a message in the mobile originated buffer it will be transferred to the GSS Similarly if there are one or more messages queued at the GSS the oldest will be transferred to the A3LA RM an...

Page 101: ...A3LA RM This value is indeterminate if the field MT status is zero This wraparound counter can range from 0 to 65535 MT length The MT length is the length in bytes of the mobile terminated SBD messag...

Page 102: ...sired the SBDI command should be used The DTE should append an A to the command i e SBDIXA when the SBD session is in response to an SBD ring alert location has format DDMM MMM dddmm mmm where DD Degr...

Page 103: ...that the call did not complete in the allowed time 11 MO message queue at the GSS is full 12 MO message has too many segments 13 GSS reported that the session did not complete 14 Invalid segment size...

Page 104: ...T 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 me...

Page 105: ...BDMTA Query the current ring indication mode The response is of the form SBDMTA mode Test Command SBDMTA List the supported mode settings The response is of the form SBDMTA supported mode settings B 1...

Page 106: ...latitude 000 999 ddd Degrees longitude 000 179 mm Minutes longitude 00 59 mmm Thousandths of minutes longitude 000 999 This command initiates an SBD session between the A3LA RM and the GSS setting th...

Page 107: ...ed A3LA RM 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 er...

Page 108: ...tration status is Not registered or Registered Auto registration may only be used with system provided location If the DTE is providing its own location e g GPS the DTE should use the manual registrat...

Page 109: ...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 f...

Page 110: ...ll 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 RM is one of the following...

Page 111: ...the A3LA RM it may not yet be supported in the Iridium network Stand by for an Iridium Technical Bulletin announcing network support for this feature This command is based on GSM 07 07 2 subclause 7...

Page 112: ...resentation status in the A3LA RM regardless of the value of any mode parameter mode when mode parameter is not given network is not interrogated 0 disable Call Waiting service for specified class es...

Page 113: ...A 1 2 1 If the command is successful the A3LA RM might return after contacting the network CCWA 1 1 If a remote caller tries to place a voice call to the A3LA RM while it already has a call in progres...

Page 114: ...M 07 07 2 subclause 7 4 are supported A subset of those implemented in the H1 menu MMI is supported Note This command will not work unless the SIM PIN has been entered using the CPIN command Note Once...

Page 115: ...e IR BIC Roam Bar Incoming Calls when Roaming outside the home country refer GSM 02 88 4 clause 2 In Iridium it is not possible to roam there is only one home country so this facility should not be ex...

Page 116: ...upported by the phone The response is in the form CLCK list of supported fac s Note Only CS will appear as a supported value if there is no SIM card in the device Note CLCK is closely related to CPIN...

Page 117: ...commands for additional information B 115 CSDT SIDETONE Exec Command CSDT sidetone enabled This command controls the A3LA RM RF board sidetone generation Enabling sidetone will cause the A3LA RM to s...

Page 118: ...M Transfer Rejected 22 Memory Capacity Exceeded 27 Destination Out Of Order 28 Unidentified Subscriber 29 Facility Rejected 30 Unknown Subscriber 38 Network Out Of Order 41 Temporary Failure 42 Conges...

Page 119: ...band transmitter and the GPS band receiver Note the GPS receiver and associated circuitry is optional and is not fitted to some revisions of the A3LA RM RF board In this case all forms of the GPSSTA c...

Page 120: ...wering is finished whether or not it was successful Read Command AA Queries the current setting Test Command AA Returns the accepted values B 121 AD AUTO DIAL Exec Command AD enabled number This comma...

Page 121: ...icer s password from factory set old value to new value The password must include all printable keyboard characters The password will not be reset by AT command F When the A3LA RM is set to echo all e...

Page 122: ...and a TBR Time Between Reports value of 64801 will cause requested reports not to be sent out in tracking mode password The Crypto Officer Password must be enclosed by two single quotes The Crypto Of...

Page 123: ...eys are re entered with the AT KD and AT KE commands password The Crypto Officer Password must be enclosed by two single quotes The Crypto Officer Password must be changed from its factory set value b...

Page 124: ...he 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...

Page 125: ...le the MPT forced registration functionality 1 Enable the MPT forced registration functionality Read Command MPTFR Query the current modem power toggle forced registration The response is in the form...

Page 126: ...ber of minutes to wait to determine movement The range is from 0 to 60 The value of 0 means that the unit wakes up after sensing a single motion Default is 3 s Sensitivity How vigorous and consistent...

Page 127: ...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...

Page 128: ...ery the current value of the packet payload threshold Response is in the form PKTTH threshold Test Command PKTTH List the supported threshold Response is in the form PKTTH supported threshold s B 139...

Page 129: ...form RLE supported rle s B 142 SE CONFIGURE STREAMING ENCRYPTION Exec Command SE imei blocks timeout imei Whether or not to send the unencrypted IMEI at the beginning of the call 0 Do not send IMEI De...

Page 130: ...st be between 1 and 100 Test Command SMSD Returns a fixed message indicating the range of acceptable values B 144 SMSE SMS ERASE Exec Command SMSE This command erases the SMS flash memory This command...

Page 131: ...est This is the same test performs by the modem at each power up B 148 UE USE ENCRYPTION Exec Command UE password n Set the modem on whether to use encryption or not at power up The factory default se...

Page 132: ...Disabled Next Power Cycle Encryption Feature Not Included B 149 VOLB VOLUME BOOST Exec Command VOLB n This command controls the volume boost function Enabling it will increase the analog audio output...

Page 133: ...nter to designate the current referenced S register S register commands are described in the following subsections C 1 1 SR DIRECT S REGISTER REFERENCE Set a pointer to reference S register r C 1 2 SR...

Page 134: ...dard used by A3LA RM No action compatibility only S8 0 255 4 Pause time for comma No action compatibility only S9 0 255 6 Carrier detect response time No action compatibility only S10 0 255 14 Carrier...

Page 135: ...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 hundred...

Page 136: ...s S40 0 255 192 Bitmap register where bits 2 3 and 4 reflect the K setting and bits 6 and 7 reflect the An setting bits 3 5 reflects the Kn setting No action compatibility only Yes S41 0 255 3 Bitmap...

Page 137: ...swer mode selection Bits 0 1 0 auto answer voice and data calls 1 auto answer voice calls only 2 auto answer data calls only S34 0 255 0 Bitmap register where bit 7 reflects the DR setting bits 0 1 re...

Page 138: ...ter bm setting 6 7 CNMI parameter ds setting Yes S47 0 255 0 Bits 4 5 and 6 reflect TON settings for dial string S49 0 255 1 Bits 0 3 reflect NPI settings for dial string S51 0 255 0 V 42bis maximum c...

Page 139: ...uence number high byte Yes S113 0 255 0 SBD upload message sequence number low byte Yes S121 0 31 1 Bitmap register bit 0 SBDMTA setting SBD ring indication bits 1 2 SBDAREG setting SBD automatic regi...

Page 140: ...e 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 comman...

Page 141: ...hed at 1200 bps 6 NO DIALTONE No dial tone detected 7 BUSY Busy signal detected 8 NO ANSWER Data or voice call connection completion timeout 9 CONNECT 0600 Data call connection established at 600 bps...

Page 142: ...CARRIER 12000 Data rate detected at 12000 bps 67 COMPRESSION V 42bis Data call connected with V 42bis compression enabled 69 COMPRESSION NONE Data call connected with no data compression 126 SBDRING S...

Page 143: ...enabled as verbose CRING ASYNC Asynchronous transparent data call indication as verbose CRING REL ASYNC Asynchronous nontransparent data as verbose CRING VOICE Voice call connection Table 9 GSM 7 05...

Page 144: ...fic Result Codes 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...

Page 145: ...s document E 1 UNIT IDENTIFICATION When beginning to build a communication link a general DTE application controlling the A3LA RM should confirm the type of Iridium device to which it is connected Tab...

Page 146: ...BD ring indications OK AT W0 Store the configuration as profile 0 OK AT Y0 Select profile 0 as the power up default OK E 3 POWER ON TO SENDING AN SBD MESSAGE The DTE will power up the A3LA RM wait for...

Page 147: ...n state performs a registration in order to be able to receive automatic notifications and enables automatic notification indications Table 14 SBD Automatic Notification Registration To A3LA RM from D...

Page 148: ...ion Message Reception To A3LA RM from DTE To DTE from A3LA RM Description AT SBDREG Query the A3LA RM registration status SBDREG 2 A3LA RM is registered Vendor application sends an MT message to the G...

Page 149: ...registration status SBDREG 2 A3LA RM is registered AT SBDAREG 2 DTE sets the automatic registration to Ask mode OK A3LA RM is moved AREG 0 0 A3LA RM notifies DTE that it needs to register AT SBDREG D...

Page 150: ...lish the connection Table 18 Answering a Data Call To A3LA RM from DTE To DTE from A3LA RM Description RING Indicates arrival of call request ATA Manually answer the call CONNECT 9600 Call connected a...

Page 151: ...order to determine the call state of the A3LA RM the CLCC and CPAS commands may be used The following table demonstrates how the output of the two commands as well as the Extended Ring Message can be...

Page 152: ...after ATD dialing Voice command aborts call command aborts call n a Alerting after ATD dialing Data command aborts call command aborts call n a Ringing Voice CLCC 004 CPAS 003 CRING VOICE Ringing Dat...

Page 153: ...eep the power cable between the A3LA RM and the power source as short as possible 5 Use both power input pins on the multi interface connector Power consumption of the A3LA RM can be divided into five...

Page 154: ...re 6 Average Current Drawn During Standby Figure 7 Average Power Consumption During Standby 0 5 10 15 20 25 30 35 Voltage DC 0 00 0 05 0 10 0 15 0 20 Current A 4 0V to 5 5V 5 0V to 32V 0 5 10 15 20 25...

Page 155: ...erage Current Drawn During Standby with DPL Handset Figure 9 Average Power Consumption During Standby with DPL Handset 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...

Page 156: ...10 Average Current Drawn During a Data Switch Call Figure 11 Average Power Consumption 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 32...

Page 157: ...age Current Drawn During an SBD Transmission Figure 13 Average Power Consumption During an SBD Transmission 0 5 10 15 20 25 30 35 Voltage DC 0 0 0 1 0 2 0 3 0 4 0 5 Current A 4 0V to 5 5V 5 0V to 32V...

Page 158: ...e Current Drawn During an SMS Transmission Figure 15 Average Power Consumption During an SMS Transmission 0 5 10 15 20 25 30 35 Voltage DC 0 0 0 1 0 2 0 3 0 4 0 5 Current A 4 0V to 5 5V 5 0V to 32V 0...

Page 159: ...rrent Drawn During a Voice Call Using DPL Handset Figure 17 Average Power Consumption During a Voice Call Using DPL Handset 0 5 10 15 20 25 30 35 Voltage DC 0 0 0 3 0 6 0 9 1 2 1 5 Current A 4 0V to 5...

Page 160: ...ting the 66 satellite constellation The near polar orbits of the Iridium constellation provide truly real time and global coverage from pole to pole Figure 18 Iridium Network Major Components The Irid...

Page 161: ...teways perform call connection setup and administrative duties such as billing and resource management The satellite constellation provides connectivity between users from a user to the Iridium system...

Page 162: ...er second kbps The connection time involving user authentication and handshaking or modem training can range from 15 to 30 seconds For an Iridium to Iridium call dial up data service offers an additio...

Page 163: ...s placed the Iridium modem actually dials and initiates a connection with the Iridium gateway through the Iridium satellite constellation Because the Iridium modem is requesting to establish a data co...

Page 164: ...tworking setup for a landline telephone The only difference is that the dialed telephone number is an international number provided by Iridium Figure 21 illustrates how an Iridium internet call is rou...

Page 165: ...ridium modems where messages may originate from terrestrial sources Delivery methods and options are initially configured when the Iridium modem is first purchased and may be easily modified via webpa...

Page 166: ...solutions 1 elimination of analog modem training time 2 increased call connection quality reliability and maximized throughput and 3 protocol independence G 7 IRIDIUM GEOLOCATION The Iridium network m...

Page 167: ...for compliance 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...

Page 168: ...AL3A RM User Guide Version B Document Number 451 93156 002B 168 of 172 APPENDIX I MIL STD 810G CERTIFICATION Figure 22 Mil STD 810G Certification...

Page 169: ...ailure 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 Rese...

Page 170: ...rating frequency 1616 to 1626 5 MHz Duplexing method TDD Multiplexing method TDMA FDMA Link margin 12 dB average Average power during a transmit slot max 7 W Average power during a frame typical 0 6 W...

Page 171: ...5 DATA I O SPECIFICATIONS Dial up data RUDICS 2 4 kbps average Direct Internet 2 4 kbps average Short burst data 1960 bytes for mobile originated and 1890 bytes for mobile terminated Short messaging...

Page 172: ...451 93156 002B Document Number 451 93156 002A 1 172 of 172 APPENDIX L MECHANICAL DRAWING Figure 23 A3LA RM Mechanical Drawing...

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