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NAL A3LA-RS General Description Manual

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TN2012-02-V1.0
GENERAL DESCRIPTION OF MODEL A3LA-RS
Version 1.0
March 19
th
, 2012
Copyright © 2012 by NAL Research Corporation
9385 Discovery Boulevard, Suite 300
Manassas, Virginia 20109 USA
Phone: 703-392-1136 x203
E-mail: contact@nalresearch.com

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  • Page 1 TN2012-02-V1.0 GENERAL DESCRIPTION OF MODEL A3LA-RS Version 1.0 March 19 , 2012 Copyright © 2012 by NAL Research Corporation 9385 Discovery Boulevard, Suite 300 Manassas, Virginia 20109 USA Phone: 703-392-1136 x203 E-mail: contact@nalresearch.com...
  • Page 2 Iridium satellite services to the fullest extent these damages may be disclaimed by law and whether advised of the possibilities of such damages. NAL Research is not liable for any claim made by a third party or made by you for a third party.

  • Page 3: Table Of Contents

    APPENDIX C: SUMMARY OF RESULT CODES ................. APPENDIX D: INFORMATIVE EXAMPLES ................APPENDIX E: DESCRIPTION OF THE IRIDIUM NETWORK ............APPENDIX F: STANDARD COMPLIANCE ................APPENDIX G: EXPORT COMPLIANCE INFORMATION ............... APPENDIX H: MECHANICAL DRAWINGS ................NAL Research Corporation (TN2012-02-V1.0)

  • Page 4: Glossary

    Right Hand Circular Polarization RUDICS Router-Based Unrestricted Digital Internetworking Connectivity Solution Short Burst Data Subscriber Identity Module Sub-Miniature Version A Short Message Service Time Domain Duplex TDMA Time Division Multiple Access VSWR Voltage Standing Wave Ratio NAL Research Corporation (TN2012-02-V1.0)

  • Page 5: Purpose

    1.0 PURPOSE This document describes the electrical and mechanical interfaces of the A3LA-RS. Model A3LA-RS is an Iridium satellite modem comprised of a 9523 transceiver module. Similar to a standard landline modem, the A3LA-RS can be controlled by any DTE (data terminal equipment) capable of sending standard AT commands via a serial port.
  • Page 6 Average Data Call Current: 350mA @ 5.0VDC (peak of 2A) NOTE: The power requirements apply to DC power measured at the A3LA-RS multi- interface connector input. The average data call current may vary depending on the field- of-view between the modem antenna and the Iridium satellite.

  • Page 7: Multi-Interface Connector

    Normally this is set to ‘+’ in register S2 (see Appendix A for details). Note that the Ring Indicator is used by the A3LA-RS to indicate that a Mobile Terminated SBD (MT-SBD) message is queued at the gateway. Application developers can monitor this pin and apply appropriate AT commands to the A3LA-RS to retrieve the MT-SBD message.

  • Page 8: Dc Power Input

    The DC power input is through pin 1 (EXT_B+) and pins 3 & 8 (EXT_GND). Cables used to supply power to the A3LA-RS should be kept as short as possible to prevent significant voltage drop, which can cause the A3LA-RS to malfunction during a data call, an SMS session or an SBD session. Power reset by the A3LA-RS during a call is an indicative of the DC power source unable to sustain voltage above 3.5VDC at peak current...

  • Page 9: Typical Power Usage Profile

    EXT_ON_OFF line turns the A3LA-RS on and a logic low turns it off. Logic high is defined as having a voltage ranging from 2.0V to 5.5V—do not allow logic high to exceed 6V. Logic low can range from 0.3V to 0.8V.
  • Page 10 0.60 0.45 0.30 0.15 0.00 Voltage (DC) Figure 3. Average current drawn during a data switch call. 0.60 0.45 0.30 0.15 0.00 Voltage (DC) Figure 4. Average current drawn during an SBD transmission. NAL Research Corporation (TN2012-02-V1.0)

  • Page 11: Antenna Connector

    3.6 TX_ACTIVE Line If the A3LA-RS is used near a GPS receiver, it is possible that the input circuitry of the GPS receiver could be damaged by the output power of the Iridium transmitter, especially if the two devices share a single antenna.

  • Page 12: Sim Card Interface

    If the reading is near the decision threshold it would be easy to see a 1 bar difference. 5.0 SIM CARD INTERFACE The A3LA-RS modem contains an integrated SIM reader. The modem uses and requires an Iridium SIM chip for operation. The SIM chip is detached from the full-size Iridium SIM card. The SIM chip is inserted into the opening located on top of the modem.

  • Page 13: Modes Of Operation

    RS. In command mode, flow control has no effect, with the RTS input ignored and the CTS output driven ON (low). When in SBD data mode, the A3LA-RS is transferring binary or text SBD message data to or from the DTE.
  • Page 14 3/16” x 3/16” hex SS standoff SMA to U.FL cable 100mm SMA washer SMA nut 9523 RF board SIM/PA board Figure 7. Exploded view of the A3LA-RS. Figure 8. A3LA-RSP comprised mainly of items 12 and 13 (dimensions are in inches). NAL Research Corporation (TN2012-02-V1.0)

  • Page 15: Technical Support

    Figure 9. Picture of the SIM/PA board without the 9523. 10.0 TECHNICAL SUPPORT FOR TECHNICAL SUPPORT, PLEASE CONTACT US AT Phone: 703-392-1136 FAX: 703-392-6795 E-mail: contact@nalresearch.com Technical documents are also available to download on NAL Research’s website www.nalresearch.com NAL Research Corporation (TN2012-02-V1.0)

  • Page 16: Appendix A: At Interface

    Some basic commands listed in this document are marked with “No action, compatibility only”. In these cases, the basic command is accepted in the same fashion as is with other modems, but has no effect on the operation of the A3LA-RS, since it has no meaning in the Iridium environment.
  • Page 17 A.5 Command Entry An AT command is a string of characters sent by the DTE to the A3LA-RS 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.
  • Page 18 Result codes can be represented by text if the A3LA-RS is in verbose mode or with numbers if in numeric mode. The command ATVn informs the A3LA-RS whether to respond in verbose or numeric mode.
  • Page 19 A.7 Hardware Failure Reporting If the A3LA-RS detects a hardware problem during initialization, it may be unable to function correctly. The A3LA-RS notifies the DTE of this situation by issuing an unsolicited result code at the end of initialization: HARDWARE FAILURE: <subsys>,<error>...
  • Page 20 A3LA-RS responses are NOT sent to the DTE A.8.7 Vn – Verbose Mode Set the response format of the A3LA-RS, which may be either numeric or textual. Numeric responses Textual responses (default) A.8.8 Wn – Error Correction Message Control Set the format of the CONNECT messages.
  • Page 21 (default). If DTR transitions from ON to OFF during either in-call command mode or in-call data mode, the call will drop to on-hook command mode and the A3LA-RS will reset to AT command profile 0.
  • Page 22 Select profile 1 A.8.20 \Kn – Control Break Control the response of the A3LA-RS to a break received from the DTE or the remote modem according to the parameter specified. The response is different in three separate states: When a break is received from DTE when A3LA-RS is in data transfer mode:...
  • Page 23 List the supported <speed>, <name>, <ce>. Response is in the form: +CBST: (supported <speed>s),(supported <name>s),(supported <ce>s) A.8.24 +CGMI – Manufacturer Identification Exec Command: +CGMI Query A3LA-RS RF board manufacturer. A.8.25 +CGMM – Model Identification Exec Command: +CGMM Query A3LA-RS RF board model.
  • Page 24 A3LA-RS A3LA-RS RF board-adaptor link reserved operation not allowed operation not supported PH-SIM PIN required PH-FSIM PIN required PH-FSIM PUK required SIM not inserted SIM PIN required SIM PUK required SIM failure SIM busy SIM wrong incorrect password...
  • Page 25 Set the service reporting level. <mode> takes the following values: Disable reporting (default) Enable reporting If reporting is enabled, the intermediate result code +CR: <serv> is returned by the A3LA-RS. <serv> can have one of the following values: ASYNC asynchronous transparent...
  • Page 26 Do not disconnect if V.42bis is not negotiated by the A3LA-RS as specified in <direction> (default) Disconnect if V.42bis is not negotiated by the A3LA-RS as specified in <direction> <max_dict> can take on the following values: 512 to 2048. Default is 512.
  • Page 27 A.8.33 +CEER – Extended Error Report Exec Command: +CEER Execution command causes the A3LA-RS 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 for last call release. The response is in the form: +CEER: <report>...
  • Page 28 PDU mode parameter invalid text mode parameter no SIM SIM PIN required PH-SIM PIN required SIM failure SIM busy SIM wrong memory failure invalid memory index memory full SM-SC address unknown no network service network timeout unknown error NAL Research Corporation (TN2012-02-V1.0)
  • Page 29 A.8.36 +CMGF – SMS Message Format Set Command: +CMGF=[<mode>] Set command tells the A3LA-RS, which input and output format of messages to use. <mode> 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 text mode (headers and body of the messages given as separate parameters).
  • Page 30 Test command gives a list of all status values supported by the A3LA-RS. 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>...
  • Page 31 DTE when DTE is active, e.g. DTR signal is ON. Valid values for <mode> are: Buffer unsolicited result codes in the A3LA-RS. If result code buffer is full, older indications are discarded and replaced with the new received indications. (default) Discard indication and reject new received message unsolicited result codes when A3LA-RS-DTE link is reserved (e.g.
  • Page 32 +CNMI: <mode>,<mt>,<bm>,<ds>,<bfr> Test Command: +CNMI=? Test command returns the supported settings of the A3LA-RS. Response is in the form: +CNMI: (list of supported <mode>s),(list of supported <mt>s),(list of supported <bm>s),(list of supported <ds>s),(list of supported <bfr>s) A.8.43 +COPS – Operator Select Set Command: +COPS=[<mode>[,<format>[,<oper>]]]...
  • Page 33 Exec Command: +CPBF=<findtext> Execution command returns phonebook entries (from the current phonebook memory storage selected with +CPBS) which alphanumeric fields start with string <findtext>. <findtext> should be of string type enclosed by ““; for example, “John”. NAL Research Corporation (TN2012-02-V1.0)
  • Page 34 <storage> takes the following values: SIM fixed dialing phonebook Last ten calls dialed phonebook A3LA-RS phonebook combined A3LA-RS and SIM phonebook (default) SIM phonebook Read Command: +CPBS? Read command returns currently selected memory, the number of used locations and total number of locations in the memory.
  • Page 35 A.8.48 +CPIN – Enter PIN Set Command: +CPIN=<pin>[,<newpin>] Set command sends to the A3LA-RS a password which is necessary before it can be operated (SIM Card PIN Code, SIM PUK, etc.). If no password request is pending, no action is taken by the A3LA-RS.
  • Page 36 <mem2> 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-RS, final result code +CMS ERROR: <cms_err> is returned.
  • Page 37 Read command returns the status of result code presentation and an integer <stat> which shows the network registration status of the A3LA-RS. Location information elements <lac> and <ci> are returned only when <n>=2 and A3LA-RS is registered in the network. Response is in the form: +CREG: <n>,<stat>[,<lac>,<ci>]...
  • Page 38 A.8.53 +CSCS – Select TE Character Set Set Command: +CSCS=[<chset>] Set command informs the A3LA-RS which character set <chset> is used by the DTE. Only the IRA character set is currently supported. <chset> should be of string type enclosed by ““; for example, “IRA”.
  • Page 39 Exec Command: +GCAP Query the A3LA-RS’ overall capabilities. A.8.61 A – Answer Answer immediately. This causes the A3LA-RS to answer the incoming data (or voice for A3LA- R/RM/RGS) call. A.8.62 D – Dial Dial a data (or voice for A3LA-R/RM/RGS) call number. The dial command causes the A3LA-RS to enter originate mode and act as an auto dialer for connection to other modems or voice lines.
  • Page 40 A.8.62.1 D> – Direct Dial From Phonebook The A3LA-RS and SIM contain phonebooks which have a phone number and an alphanumeric field for each phonebook entry location. The use of V.25ter dialing command ensures that direct...
  • Page 41 Enable auto-answer after n rings A.8.65 Xn – Extended Result Codes Select the response set to be used by the A3LA-RS when informing the DTE of the results of a command or data (or voice call for A3LA-R/RM/RGS). OK, CONNECT, RING, NO CARRIER, NO ANSWER and ERROR CONNECT response is used to inform of a data call connection;...
  • Page 42 <mode> takes the following values: Disable extended format (default) Enable extended format If extended format is enabled, the unsolicited result code +CRING: <type> is returned by the A3LA-RS instead of RING, where <type> can be one of the following: ASYNC asynchronous transparent SYNC...
  • Page 43 +CVHU: (supported <mode>s) A.8.70 +CCLK – Real-Time Clock Set Command: +CCLK=[<time>] Sets the real-time clock of the A3LA-RS. 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 two double quotes.
  • Page 44 Note: DTMF generated with the –MSVTS command is never played back locally as tones and is therefore neither played nor muted under control of the –MSVLS command. A.8.72 –MSVTR – DTMF Received in Voice Call (Not Applicable to A3LA-RS) Set Command: –MSVTR=[<mode>] Disable or enable the receiving of DTMF messages from the network.
  • Page 45 Accuracy as measured by the difference between the time reported and the actual time this message is sent out of the A3LA-RS’ serial port should not exceed 4 frame ticks (.36 seconds) and in most cases will be one frame tick (.09 seconds) or less.
  • Page 46 (up to 30, in multiples of 5). When ‘no reply’ is enabled or queried, this gives the time in seconds to wait before call is forwarded. if <mode>=2 and command is successful, the A3LA-RS returns a response in the form: +CCFC:<status>,<class>[,<number>,<type>] where <status>...
  • Page 47 A.8.77 +CLCC – Request Current Call Status Exec Command: +CLCC Returns the current call status of the A3LA-RS. 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.
  • Page 48 <ver> specifies the desired IRLP version and can take the following values: Default IRLP 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-RS) and can take the following values: 1-105. Default is 105.
  • Page 49 IRLP test mode on Read Command: +WTM? Query the current parameter setting. The response is in the form: +WTM: <tm> Test Command: +WTM=? List the supported parameter settings. The response is in the form: +WTM: (supported <tm>s) NAL Research Corporation (TN2012-02-V1.0)
  • Page 50  Once the command is entered, the A3LA-RS will indicate to the DTE that it is prepared to receive the message by sending the ASCII encoded string “READY<CR><LF>” (hex 52 45 41 44 59 0D 0A) to the DTE.
  • Page 51 A.8.86 +SBDRB – Short Burst Data: Read Binary Data Exec Command: +SBDRB This command is used to transfer a binary SBD message from the single mobile terminated buffer in the A3LA-RS to the DTE. The mobile terminated buffer can contain only one message at any one time. ...
  • Page 52 This command is used to transfer a text SBD message from the single mobile terminated buffer in the A3LA-RS to the DTE. This command is similar to +SBDRB but does not provide a length indicator or checksum. The intent of this command is to provide a human friendly interface to SBD for demonstrations and application development.
  • Page 53 <MO flag>: The MO flag indicates the existence of a message in the mobile originated buffer. The response from the A3LA-RS is one of the following numeric codes: No message in mobile originated buffer Message in mobile originated buffer <MOMSN>: The MOMSN identifies the sequence number that will be used during the next...
  • Page 54 <mode>: Disable indicator event reporting; do not send +CIEV unsolicited result codes to the DTE; buffer the most recent indicator event for each indicator in the A3LA-RS. (default) Enable indicator event reporting; buffer the most recent +CIEV unsolicited result code for each indicator when the data port is not in command mode, and flush them to the DTE on return to command mode;...
  • Page 55 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 A3LA-RS can start an SBD session without receiving continual notifications of changes in signal strength.
  • Page 56 10 seconds may be experienced. If the A3LA-RS has no SIM, is awaiting a SIM PIN entry, has an invalid SIM, or has otherwise not proceeded to successful registration, the delay in response may exceed the 50 second timeout limit.
  • Page 57 A.8.100 +CLIP – Calling Line Identification Presentation Exec Command: +CLIP=<n> Note: While this command is implemented in the A3LA-RS, it may not yet be supported in the Iridium network. Stand by for an Iridium Technical Bulletin announcing network support for this feature.
  • Page 58 A.8.101 +CLIR – Calling Line Identification Restriction Exec Command: +CLIR=<n> Note: While this command is implemented in the A3LA-RS, it may not yet be supported in the Iridium network. Stand by for an Iridium Technical Bulletin announcing network support for this feature.
  • Page 59 A.8.102 +IPR – Fixed DTE Rate Set Command: +IPR=<rate>[,<autoflag>] Set the data rate at which the A3LA-RS 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:...
  • Page 60 This instructs the GSS to disable (detach) SBD ring alerts for the calling A3LA-RS. Successful completion of the detach command implies that the GSS has performed the requested detach action and the A3LA-RS is no longer registered for SBD ring alerts. This session does not transfer any MO or MT messages.
  • Page 61 GSS. Similarly if there is one or more messages queued at the GSS the oldest will be transferred to the A3LA-RS and placed into the mobile terminated buffer.
  • Page 62 The message, if any, in the mobile originated buffer will be sent from the A3LA-RS to the GSS  If there is a message queued at the GSS it will be transferred to the A3LA-RS and placed into the mobile terminated buffer ...
  • Page 63 <MOMSN>: The Mobile Originated Message Sequence Number (MOMSN) is a value assigned by A3LA-RS when sending a mobile-originated message to the GSS. This value is incremented each time an SBD session is successfully completed between the A3LA-RS to the GSS. This wraparound counter can range from 0 to 65535.
  • Page 64 <MTMSN>: The Mobile Terminated Message Sequence Number (MTMSN) is assigned by the GSS when forwarding a message to the A3LA-RS. This value is indeterminate if the field <MT status> is zero. This wraparound counter can range from 0 to 65535.
  • Page 65 This session does not transfer any MO or MT messages. Note: The A3LA-RS restricts the number 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).
  • Page 66 A3LA-RS is busy, unable to initiate call Try later, must wait 3 minutes since last registration 37.. Reserved, but indicate failure if used Read Command: +SBDREG? Query the current SBD registration status of the A3LA-RS. The response is of the form: +SBDREG:<status> <status>: Detached Not registered...
  • Page 67 This session does not transfer any MO or MT messages. Upon triggering in mode 2, “Ask”, the A3LA-RS reports to the DTE that it should register with the system because its location has changed (see <event> below); it is then the responsibility of the DTE to register via +SBDREG or +SBDIX.
  • Page 68 No SBD ring alert SBD ring alert has been received and needs to be answered Note: The RA flag is set whenever the A3LA-RS receives an SBD ring alert; this happens even if the +SBDMTA setting specifies that SBD ring indications are disabled.
  • Page 69 A.8.113 +WANTST, +ANTST – Antenna status Exec Command: +WANTST This command causes the A3LA-RS’ internal state-change history to be deleted, so that the next time it polls the antenna status, a +ANTST:<ant_status> unsolicited message will be generated regardless of state.
  • Page 70 Pending call drop alert is inactive Pending call drop alert is active The +PCDA message will be sent whenever the pending call drop alert status changes. A.8.115 +DPLCI – DPL Call Indication (Not Applicable to the A3LA-RS) Exec Command: none Unsolicited Announcement: +DPLCI=<call_state>,<call_type>,<emergency_call>,<telephone_number>...
  • Page 71 Unsolicited result notifying that a call is waiting +CCWA:<number>,<type>,<class> Note: While this command is implemented in the A3LA-RS, it may not yet be supported in the Iridium network. Stand by for an Iridium Technical Bulletin announcing network support for this feature.
  • Page 72 The status of only the Voice class can be queried: AT+CCWA=1,2,1 If the command is successful, the A3LA-RS might return (after contacting the network): +CCWA:1,1 If a remote caller tries to place a voice call to the A3LA-R/RM/RGS while it already has a call in progress, and the Call Waiting service has been made active for class Voice, then the network will send a message to the A3LA-R/RM/RGS.
  • Page 73 Execute command is used to activate or deactivate Call Barring Supplementary Services, SIM Fixed Dialling feature, the SIM card PIN Code, or to enable or disable the Phone Lock feature in the A3LA-RS. A password code (detailed below) may be required, depending on the action chosen.
  • Page 74 This parameter defaults to 7, equal to all classes, but the A3LA-RS only supports Voice Call Barring so this is illegal. Therefore in practice the DTE must supply <classx>=1 when querying or changing the status of any Call Barring facility. When querying (<mode>=2), <passwd>...
  • Page 75 List of supported <n>s +CHLD=? +CHLD:(0,1,1x,2,2x,3) Note: While this command is implemented in the A3LA-RS, 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 7.12, and is used to invoke the HOLD and MPTY supplementary services for switching between held calls, etc.
  • Page 76 Exec Command: none Unsolicited Announcement: +XCSI=<overall call_state>,<active call_state>,<held_call state>,<active index>,<held index> where: <overall call_state>: Idle (dialling possible) One single-party call active One multiparty call active Incoming call arriving (otherwise idle) One single-party call active, plus waiting call NAL Research Corporation (TN2012-02-V1.0)
  • Page 77 The +XCSI message extends the information available in the +DPLCI announcement. It will be sent whenever there is a non-data call state change in the A3LA-RS’ internal Call Control (MMICC) state machines, including during a voice call session (possibly with multiple concurrent calls) when any call becomes held/active/waiting.
  • Page 78 The call index fields identify the call records for the active and held calls. Note that the A3LA-RS implementation allows at most one held call at a time. The index values can be used in the “<1x>” and “<2x>” options of the AT+CHLD command.
  • Page 79 Iridium 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-RS RF board. In this case all forms of the +GPSSTA command will return an error. Exec Command: +GPSSTA=<mode>...

  • Page 80: Appendix B: S-Register Definitions

    APPENDIX B: S-REGISTER DEFINITIONS S-registers allow control over specific A3LA-RS operations. Some S-registers contain a single numeric value. Other S-registers are bit mapped where individual bits, or sets of bits, control specific functions. B.1 S-Register Commands Commands allow S-registers to be read, written, or simply referenced (i.e. set a pointer to designate the current, referenced S-register).
  • Page 81 Bitmap register where bit 1 reflects line 0  255 modulation method setting, bits 2 and 3 reflect the Wn setting. Bitmap register where bits 0, 1 and 2 reflect the link type setting. 0  255 No action, compatibility only NAL Research Corporation (TN2012-02-V1.0)
  • Page 82 0  255 Bearer service capabilities GSM Call clearing code as returned by the 0  255 network. Refer to GSM 04.08 [7] Table 10.86 Cause Information Element Values. Bitmap register: 0  255 0 = +CMGF setting NAL Research Corporation (TN2012-02-V1.0)
  • Page 83 S106 1  10 IRLP riwf->isu parameter S107 1  10 IRLP risu->iwf parameter SBD upload message sequence number (high S112 0  255 byte) SBD upload message sequence number (low S113 0  255 byte) NAL Research Corporation (TN2012-02-V1.0)
  • Page 84 MSVTR/MSVLS parameters: Bit 0 = –MSVTR: 0 = Disabled (default) 1 = Enabled S127 0  255 Bit 1 = –MSVLS: 0 = No Mute (default) 1 = Mute Enabled Bits 2-5 = Reserved (see IID#2600) NAL Research Corporation (TN2012-02-V1.0)

  • Page 85: Appendix C: Summary Of Result Codes

    APPENDIX C: SUMMARY OF RESULT CODES The following tables list the result codes returned by the A3LA-RS. V.25ter/Hayes Result Codes Numeric (V0) Verbose (V1) Description Acknowledges execution of command; voice call connection ‘OK’ has been established. ‘CONNECT’ Data call connection has been established.
  • Page 86 ‘+CMTI: <mem>,<index>’ (unsolicited if enabled). ‘+CMT: <alpha>],<length><CR><LF><pdu>’ SMS-DELIVER message indication as verbose (PDU mode) (unsolicited if enabled). ‘+CDS:<length><CR><LF><pdu>’ (PDU SMS-STATUS-REPORT message as verbose indication (unsolicited if enabled). mode) as verbose ‘+CMS ERROR: <error> SMS command failed. NAL Research Corporation (TN2012-02-V1.0)
  • Page 87 Verbose (V1) Description Ready to receive SBD binary message as verbose ‘READY’ 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. NAL Research Corporation (TN2012-02-V1.0)

  • Page 88: Appendix D: Informative Examples

    Store the configuration as profile 0 AT&Y0 Select profile 0 as the power-up default D.3 Power-on to Sending an SBD Message The DTE will power up the A3LA-RS, wait for the A3LA-RS to acquire the network, and send a 70-byte message. NAL Research Corporation (TN2012-02-V1.0)
  • Page 89 (from DTE) Wait for DSR to become asserted AT+CIER=1,0,1 Enable service indication reporting (note that this can be stored in the default configuration) Wait for the A3LA-RS to acquire the +CIEV: 1, 1 network AT+SBDWB=70 READY <binary transfer> Transfer message to A3LA-RS...
  • Page 90 Call connected at DTE rate of 9600 CONNECT ASYNC 9600 D.8 Answering a Data Call The A3LA-RS is capable of accepting mobile terminated data calls. The following is a sequence of commands that can be used to establish the connection. NAL Research Corporation (TN2012-02-V1.0)
  • Page 91 D.10 Coordination of +CLCC and +CPAS responses In order to determine the call state of the A3LA-RS, 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 combined to provide a more detailed definition of the call state than any one of the results provides by itself.
  • Page 92 In call - Data +CLCC: 000 +CPAS: 004 On hold - Voice +CLCC: 001 +CPAS: 000 or 003 2 or more call states, Call waiting - Voice one of which is 004 e.g. +CPAS: 000 or 003 +CLCC: 000,004 NAL Research Corporation (TN2012-02-V1.0)

  • Page 93: Appendix E: Description Of The Iridium Network

    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.
  • Page 94 (SMS) and router-based unrestricted digital internetworking connectivity solution (RUDICS). Dial-up Data (DAV) SMS, SBD Dial-up Data (DAV) Direct Internet AZ, HI or Fucino PSTN RUDICS RUDICS Server Landline SBD, SMS Modem Internet (e-mail) Address Figure E1. Iridium Network Data Capabilities. NAL Research Corporation (TN2012-02-V1.0)
  • Page 95 Iridium network. For those ISU-to-ISU dial-up calls where data transmission delay is critical such as the application of TCP/IP protocol, DAV should be considered in the design. This option eliminates the Iridium gateway once NAL Research Corporation (TN2012-02-V1.0)
  • Page 96 , which manages airtime by seamlessly connecting and disconnecting a user through the Iridium system. Airtime charges accumulate only while the call is connected. Improved effective data throughput is achieved through the use of user-transparent data NAL Research Corporation (TN2012-02-V1.0)
  • Page 97 IP connection between the Host Application and the Iridium modem. There are three key benefits of using RUDICS over the conventional PSTN circuit switched data connectivity or mobile-to-mobile data solutions: (1) elimination of analog modem training time, (2) increased call connection quality, reliability, and maximized throughput and (3) protocol independence. NAL Research Corporation (TN2012-02-V1.0)
  • Page 98 Geo-location errors in the east-west dimension, therefore, are sometimes more than 100 times greater than in the north-south dimension. NAL Research Corporation (TN2012-02-V1.0)

  • Page 99: Appendix F: Standard Compliance

    APPENDIX F: STANDARDS COMPLIANCE The A3LA-RS comprises of an Iridium 9523 L-band transceiver board. The 9523 is a regulatory approved daughter module transceiver that can be fitted within an enclosed host system. The 9523 is designed to comply with the standards for Radio Emissions Compliance, Electromagnetic Compatibility, and AC Safety in the United States, European Union and Canada assuming an antenna with a gain of ~3dBi and adequate shielding.

  • Page 100: Appendix G: Export Compliance Information

    APPENDIX G: EXPORT COMPLIANCE INFORMATION The A3LA-RS is controlled by the export laws and regulations of the United States of America (U.S.). It is the policy of NAL Research to fully comply with all U.S. export and economic sanction laws and regulations.

  • Page 101: Appendix H: Mechanical Drawings

    APPENDIX H: MECHANICAL DRAWINGS NAL Research Corporation (TN2012-02-V1.0)

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