1. Manuals
  2. Brands
  3. NAL RESEARCH CORPORATION Manuals
  4. Modem
  5. A3LA-RG
  6. General description manual

NAL RESEARCH CORPORATION A3LA-RG General Description Manual

Hide thumbs Also See for A3LA-RG:
Table of Contents

Advertisement

Quick Links

Download this manual
451-93156-009A
GENERAL DESCRIPTION OF MODEL A3LA-RG
Revision A
May 20, 2020
Copyright © 2020 by NAL Research Corporation
11100 Endeavor Court Suite 300
Manassas, Virginia 20109 USA
Phone: 703-392-1136
E-mail: contact@nalresearch.com

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the A3LA-RG and is the answer not in the manual?

Questions and answers

Related Manuals for NAL RESEARCH CORPORATION A3LA-RG

Summary of Contents for NAL RESEARCH CORPORATION A3LA-RG

  • Page 1 451-93156-009A GENERAL DESCRIPTION OF MODEL A3LA-RG Revision A May 20, 2020 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 LEGAL DISCLAIMER AND CONDITIONS OF USE This document contains information for the Iridium A3LA-RG modem and accompanying accessories (“Product”) is provided “as is.” Reasonable effort has been made to make the information in this document reliable and consistent with specifications, test measurements and other information. However, NAL Research Corporation and its affiliated companies, directors, officers, employees, agents, trustees or consultants (“NAL Research”) assume no responsibility for any typographical, technical, content or other...
  • Page 3 Revision History Revision Date Description Author 8/2/16 Initial version P. Kormendi Added revision history Updated address 5/20/20 P. Kormendi Updated document number Added AT^VOLB command NAL Research Corporation (451-93156-009A)

  • Page 4: Table Of Contents

    APPENDIX A: AT INTERFACE ....................APPENDIX B: S-REGISTER DEFINITIONS ................APPENDIX C: SUMMARY OF RESULT CODES ................. APPENDIX D: INFORMATIVE EXAMPLES ................APPENDIX E: POWER CONSUMPTION .................. APPENDIX F: DESCRIPTION OF THE IRIDIUM NETWORK ............APPENDIX G: STANDARDS COMPLIANCE ................NAL Research Corporation (451-93156-009A)
  • Page 5 APPENDIX H: MIL-STD-810G CERTIFICATION ............... APPENDIX I: EXPORT COMPLIANCE INFORMATION ..............APPENDIX J: MECHANICAL DRAWINGS ................NAL Research Corporation (451-93156-009A)

  • Page 6: 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 (451-93156-009A)

  • Page 7: Purpose

    It is designed to transmit either AES 256-bit encrypted or unencrypted data (but not voice) via the Iridium satellite network. Similar to a standard landline modem, the A3LA-RG can be controlled by any DTE (data terminal equipment) capable of sending standard AT commands via an RS232 serial port.

  • Page 8: Specifications

    IMPORTANT: Never feed supply voltage into the active GPS antenna. Always use the bias voltage supplied by the A3LA-RG SMA antenna connector to power an active GPS antenna. Feeding voltage to the GPS antenna other than the provided bias voltage will permanently damage the A3LA-RG.

  • Page 9: Gps Receiver Specifications

    SatTerm Software Manual (TN2012-004-V8.6.0) Additional Information on DirectIP SBD (TN2007-637-V1.0) 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...

  • Page 10: Rs232 Data Interface (Standard 9-Wire Configuration)

    Appendix A. The factory-set baud rate is 19,200 bps and can be changed using the +IPR command. Note that the Ring Indicator is used by the A3LA-RG 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-RG to retrieve the MT-SBD message.

  • Page 11: Rs232 Data Interface (3-Wire Configuration)

    A3LA-RG to malfunction during a data call, an SMS session or an SBD session. Power reset by the A3LA-RG during a call is an indicative of the DC power source unable to sustain voltage above 4.0V at peak current demand. Appendix E provides the electrical power profile of the A3LA-RG.

  • Page 12: Power On/Off Control

    With the A3LA-RG held in the position shown in Figure 2 (DB25 connector to the left), the A3LA-RG is set for 4.0V to +5.4V when the red jumper is on the middle and left pins and is set for +5.0V to +32V when the jumper is on the middle and right pins. Each pin is also labeled with 5V and 32V to the left and right pins, respectively.

  • Page 13: Digital Peripheral Link (Dpl)

    20) enable an analog audio handset to be connected to the A3LA-RG. With the DPL audio handset model DPLS0401-X and DB25 data kit model HRC-24-8R, the A3LA-RG can be used both as a data modem and a satellite phone. This setup as shown in Figure 3 can be an extremely useful developmental tool since the modem status can be seen on the handset LCD similar to a 9555 Iridium phone.

  • Page 14: Gps Antenna Connector

    If the reading is near the decision threshold it would be easy to see a 1 bar difference. 6.0 GPS ANTENNA CONNECTOR The A3LA-RG modem uses an SMA female connector for the GPS antenna (Figure 4). Any active antenna required a bias voltage of ~3.3VDC with <50mA is appropriate. NAL Research offers a magnetic mount GPS antenna as well as dual Iridium/GPS antenna for use with the A3LA-RG.

  • Page 15: Led Display

    10.0 MODES OF OPERATION The A3LA-RG serial data port is always in one of two modes: command mode or data mode. When the data port is in command mode, AT commands can be entered to control the A3LA-RG. In command mode, flow control has no effect, with the RTS input ignored and the CTS output driven ON (low).

  • Page 16: Bit Encryption

    The 9523 RF board can sometimes ‘lock-up’ when being inactive over a long period of time (a day or longer). The only way to recover is to power cycle the ISU. The A3LA-RG has safeguards put in place with a watch-dog timer to keep the 9523 RF board from locking up.

  • Page 17: Mounting Recommendations

    ^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 6-32 thread type.

  • Page 18: 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-RG, since it has no meaning in the Iridium environment.
  • Page 19 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.
  • Page 20 Result codes can be represented by text if the A3LA-RG is in verbose mode or with numbers if in numeric mode. The command ATVn informs the A3LA-RG whether to respond in verbose or numeric mode.
  • Page 21 A.7 Hardware Failure Reporting If the A3LA-RG detects a hardware problem during initialization, it may be unable to function correctly. The A3LA-RG notifies the DTE of this situation by issuing an unsolicited result code at the end of initialization: HARDWARE FAILURE: <subsys>,<error>...
  • Page 22 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). DTR is ignored. A DTR signal input is not needed when set to &D0.
  • Page 23 Select profile 1 A.8.20 \Kn – Control Break Control the response of the A3LA-RG 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-RG is in data transfer mode:...
  • Page 24 Query the current bearer service type settings. Response is in the form: +CBST: <speed>,<name>,<ce> Test Command: +CBST=? 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-RG RF board manufacturer. NAL Research Corporation (451-93156-009A)
  • Page 25 A.8.25 +CGMM – Model Identification Exec Command: +CGMM Query A3LA-RG RF board model. A.8.26 +CGMR – Revision Exec Command: +CGMR Query A3LA-RG RF board revision. A.8.27 +CGSN – Serial Number Exec Command: +CGSN Query A3LA-RG IMEI. A.8.28 +CMEE – Report Mobile Equipment Error Set Command: +CMEE=[<x>]...
  • Page 26 A.8.30 +CR – Service Reporting Control Set Command: +CR=[<mode>] 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-RG. NAL Research Corporation (451-93156-009A)
  • Page 27 Receive only Both directions (default) <comp_neg> can take on the following values: Do not disconnect if V.42bis is not negotiated by the A3LA-RG as specified in <direction> (default) Disconnect if V.42bis is not negotiated by the A3LA-RG as specified in <direction>...
  • Page 28 Set the data compression reporting level. <mode> can take on the following values: Disable data compression reporting (default) Enable data compression reporting If reporting is enabled, the following intermediate result codes are transmitted by the A3LA-RG: +DR: NONE No data compression +DR:...
  • Page 29 TPDU not supported SC busy no SC subscription SC system failure invalid SME address destination SME barred SM rejected SIM SMS storage full no SMS storage capability in SIM error in MS memory capacity exceeded NAL Research Corporation (451-93156-009A)
  • Page 30 A.8.36 +CMGF – SMS Message Format Set Command: +CMGF=[<mode>] Set command tells the A3LA-RG, 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 31 <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 –...
  • Page 32 "alternating call" refer to all GSM bearer and tele-services that incorporate more than one basic service (voice, data, fax) within one call). For the satellite modem, only a single call is supported. <mode>: single mode (default) NAL Research Corporation (451-93156-009A)
  • Page 33 DTE when DTE is active, e.g. DTR signal is ON. Valid values for <mode> are: Buffer unsolicited result codes in the A3LA-RG. 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-RG-DTE link is reserved (e.g.
  • Page 34 +CNMI: <mode>,<mt>,<bm>,<ds>,<bfr> Test Command: +CNMI=? Test command returns the supported settings of the A3LA-RG. 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 35 +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 of <number> and <text> fields. Response is in the form: +CPBR: (list of supported <index>s),<nlength>,<tlength> NAL Research Corporation (451-93156-009A)
  • Page 36 A.8.48 +CPIN – Enter PIN Set Command: +CPIN=<pin>[,<newpin>] Set command sends to the A3LA-RG 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-RG.
  • Page 37 <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-RG, final result code +CMS ERROR: <cms_err> is returned.
  • Page 38 +CPMS: <mem1>,<used1>,<total1>,<mem2>,<used2>,<total2>,<mem3>,<used3>, <total3> Test Command: +CPMS=? Test command returns lists of memory storages supported by the A3LA-RG. Response is in the form: +CPMS: (list of supported <mem1>s),(list of supported <mem2>s), (list of supported <mem3>s) A.8.50 +CREG – Network Registration Set Command: +CREG=[<n>]...
  • Page 39 A.8.53 +CSCS – Select TE Character Set Set Command: +CSCS=[<chset>] Set command informs the A3LA-RG 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 40 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>]...
  • Page 41 Answer immediately. This causes the A3LA-RG to answer the incoming data or voice call. A.8.62 D – Dial Dial a data or voice call number. The dial command causes the A3LA-RG 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.
  • Page 42 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. OK, CONNECT, RING, NO CARRIER, NO ANSWER and ERROR CONNECT response is used to inform of a data call connection;...
  • Page 43 <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-RG instead of RING, where <type> can be one of the following: ASYNC asynchronous transparent SYNC...
  • Page 44 +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 two double quotes.
  • Page 45 –MSVTR: (supported <mode>s) A.8.73 –MSVLS – Local DTMF Feedback Selection Set Command: –MSVLS=[<mode>] Disable or enable playing of DTMF tones locally (i.e. feedback tones) while in a voice call. <mode> takes one of the following values: NAL Research Corporation (451-93156-009A)
  • Page 46 Accuracy as measured by the difference between the time reported and the actual time this message is sent out of the A3LA-RG’ serial port should not exceed 4 frame ticks (.36 seconds) and in most cases will be one frame tick (.09 seconds) or less.
  • Page 47 –6376, a maximum value of +6376, and a resolution of 4. <time_stamp> is assigned by the A3LA-RG when the geolocation grid code received from the network is stored to the A3LA-RG internal memory. Current Iridium system time, which is a running count of 90 millisecond intervals, is used for the time stamp.
  • Page 48 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.
  • Page 49 <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-RG) and can take the following values: 1-105. Default is 105.
  • Page 50 1-10. Default is 10. <r2> is used to represent the maximum number of S frames that are used to acknowledge I frames at uplink direction (A3LA-RG->IWF) and can take on the following values: 1-10. Default is 10. <t4> is used to supervise the re-sequencing of misordered frames. The values are defined to be the earliest instant to consider a tardy frame as lost.
  • Page 51 Register Type 1 RS232 DAV Data Peripheral <encrypt> can take on the following values: Encryption is not supported at this time Read Command: +WDAV? Query the current DP registration parameter settings. The response is in the form: +WDAV:<DP type>,<encrypt> Test Command: +WDAV=? NAL Research Corporation (451-93156-009A)
  • Page 52  Once the command is entered, the A3LA-RG 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 53 This command is used to transfer a text SBD message from the single mobile terminated buffer in the A3LA-RG 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 54 <MO flag>: The MO flag indicates the existence of a message in the mobile originated buffer. The response from the A3LA-RG 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 55 <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-RG. (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 56 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-RG can start an SBD session without receiving continual notifications of changes in signal strength.
  • Page 57 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 successful registration, the delay in response may exceed the 50 second timeout limit.
  • Page 58 While the A3LA-RG is locked, it is unable to perform any SBD sessions. Any attempts to start a session will return an error code indicating that the A3LA-RG is locked. Command Response: +CULK:<status> where: <status> indicates the lock status of the A3LA-RG following the unlock attempt: Unlocked –...
  • Page 59 Note: While this command is implemented in the A3LA-RG, 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 controls the presentation of the Calling Line Identity of the calling party in a mobile terminated call via the +CLIP unsolicited result code.
  • Page 60 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:...
  • Page 61 Alternatively, the text message may be entered separately:  Upon entering the command “AT+SBDWT”, the A3LA-RG will indicate to the DTE that it is prepared to receive the message by sending the string “READY<CR><LF>” (hex 52 45 41 44 59 0D 0A) to the DTE ...
  • Page 62 GSS. Similarly if there is one or more messages queued at the GSS the oldest will be transferred to the A3LA-RG and placed into the mobile terminated buffer.
  • Page 63 The message, if any, in the mobile originated buffer will be sent from the A3LA-RG to the GSS  If there is a message queued at the GSS it will be transferred to the A3LA-RG and placed into the mobile terminated buffer ...
  • Page 64 Minutes longitude (00-59) Thousandths of minutes longitude (000-999) This command initiates an SBD session between the A3LA-RG and the GSS, setting the SBD Session. The optional sign indicators specify latitude North (+) or South (-), and longitude East (+) or West (-). If omitted, the default is +.
  • Page 65 <MTMSN>: The Mobile Terminated Message Sequence Number (MTMSN) is assigned by the GSS when forwarding a message to the A3LA-RG. This value is indeterminate if the field <MT status> is zero. This wraparound counter can range from 0 to 65535.
  • Page 66 <status>: Disable ring indication Enable ring indication (default) When SBD ring indication is enabled, the A3LA-RG asserts the RI line and issues the unsolicited result code SBDRING when an SBD ring alert is received. Read Command: +SBDMTA? Query the current ring indication mode. The response is of the form: +SBDMTA:<mode>...
  • Page 67 Detached – A3LA-RG is detached as a result of a successful +SBDDET or +SBDI command Not registered – A3LA-RG is attached but has not provided a good location since it was last detached Registered – A3LA-RG is attached with a good location. Note that this may be the case even when the most recent attempt did not provide a good location.
  • Page 68 This session does not transfer any MO or MT messages. Upon triggering in mode 2, “Ask”, the A3LA-RG 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 69 No SBD ring alert SBD ring alert has been received and needs to be answered Note: The RA flag is set whenever the A3LA-RG receives an SBD ring alert; this happens even if the +SBDMTA setting specifies that SBD ring indications are disabled.
  • Page 70 Unsolicited result notifying that a call is waiting +CCWA:<number>,<type>,<class> Note: While this command is implemented in the A3LA-RG, it may not yet be supported in the Iridium network. Stand by for an Iridium Technical Bulletin announcing network support for this feature.
  • Page 71 If the command is successful, the A3LA-RG might return (after contacting the network): +CCWA:1,1 If a remote caller tries to place a voice call to the A3LA-RG 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-RG.
  • Page 72 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-RG. A password code (detailed below) may be required, depending on the action chosen.
  • Page 73 This parameter defaults to 7, equal to all classes, but the A3LA-RG 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 74 Exec Command: +CSDT=<sidetone enabled> This command controls the A3LA-RG RF board sidetone generation. Enabling sidetone will cause the A3LA-RG to start sidetone generation. Disabling sidetone will cause the A3LA-RG to stop sidetone generation. The following parameter values are currently supported: <...
  • Page 75 Values up to 127 are defined by GSM for SMS-PP Relay Layer messages and values 128 and above are internal codes introduced by Iridium. A.8.117 +PA – GPS: List of NMEA Message Formats Exec Command: +PA=<n> NAL Research Corporation (451-93156-009A)
  • Page 76 1 is in regular mode only, 2 is in tracking mode only and 3 is in regular or tracking mode. <rate> Frequency that the GPS information is sent over in seconds. NAL Research Corporation (451-93156-009A)
  • Page 77 4 place. The AT+PLOC command is recommended to obtain GPS information. Command Response: +PL: Latitude:<||>:<mm>.<nnnn> <N/S> Longitude=<ooo>:<pp>.<qqqq> <E/W> Altitude=<#> meters <Invalid Position Fix> Satellites Used=<zz> where: <||> Latitude in degrees (00-90) NAL Research Corporation (451-93156-009A)
  • Page 78 Exec Command: +PLOC This command returns position with the format shown below. The <Invalid Position Fix> message will appear only if the GPS receiver could not acquire a position fix. On the A3LA-RG this command does not actually contain GPS information.
  • Page 79 Number of satellites used to obtain information A.8.125 ^AA – Auto Answer Display Exec Command: ^AA=<n> This command sets whether or not to display the ^AAI unsolicited result code when attempting to auto answer a call. NAL Research Corporation (451-93156-009A)
  • Page 80 DTR line is brought low and will go back to command mode when the DTR line is brought high again. While in auto dial mode, the A3LA-RG will not respond to AT commands. Instead, the A3LA-RG will continuously dial the number that is setup for auto dialing.
  • Page 81 The Crypto Officer Password must be enclosed by two single quotes (‘ ‘). The Crypto Officer Password must be changed from its factory-set value before this command will work. A.8.134 ^MODRSTn – Modem Reset Information Message Displayed NAL Research Corporation (451-93156-009A)
  • Page 82 Exec Command: ^MPTFR = [<mode>] Enable or disable the modem power toggle forced registration functionality. Every hour the modem will attempt to find a period of inactivity to make a registration. If it cannot find a NAL Research Corporation (451-93156-009A)
  • Page 83 Sensitivity. How vigorous and consistent the motion must be every minute for the unit to determine it is in motion. The range is 1 to 26 where 1 requires the least motion and 26 requires the most motion. Read Command: ^MSB? NAL Research Corporation (451-93156-009A)
  • Page 84 Sets the timeout interval for when to resend a packet if an acknowledgement has not been received. <timer> can have the following values: 1..200 Timeout value in 10th of seconds. Read Command: ^PKTRT? Query the current value of the packet resend timeout delay. Response is in the form: NAL Research Corporation (451-93156-009A)
  • Page 85 Use run length encoding Read Command: ^RLE? Query the current setting if the unit will use packets. Response is in the form: ^RLE: <rle> Test Command: ^RLE=? List the supported <rle> Response is in the form: ^RLE: (supported <rle>s) NAL Research Corporation (451-93156-009A)
  • Page 86 This command will display the message from SMS flash memory for the provided index or all of the messages in SMS flash memory if the index is not specified. <index>: The index of the message to display. The index must be between 1 and 100 NAL Research Corporation (451-93156-009A)
  • Page 87 Enabled Next Power Cycle" OR "Set to be Disabled Next Power Cycle")  "Encryption Feature Not Included" A.8.154 ^VOLB – Volume Boost Exec Command: ^VOLB=<n> This command controls the volume boost function. Enabling it will increase the analog audio output by 16dB <n>: Disable volume boost NAL Research Corporation (451-93156-009A)
  • Page 88 Enable volume boost Read Command: ^VOLB? Returns the current value Test Command: ^VOLB=? Returns a fixed message indicating the range of acceptable values. NAL Research Corporation (451-93156-009A)

  • Page 89: Appendix B: S-Register Definitions

    APPENDIX B: S-REGISTER DEFINITIONS S-registers allow control over specific A3LA-RG 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 90 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 (451-93156-009A)
  • Page 91 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 (451-93156-009A)
  • Page 92 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 (451-93156-009A)
  • Page 93 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 (451-93156-009A)

  • Page 94: Appendix C: Summary Of Result Codes

    APPENDIX C: SUMMARY OF RESULT CODES The following tables list the result codes returned by the A3LA-RG. 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 95 ‘+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 (451-93156-009A)
  • Page 96 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 (451-93156-009A)

  • Page 97: 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-RG, wait for the A3LA-RG to acquire the network, and send a 70-byte message. NAL Research Corporation (451-93156-009A)
  • Page 98 (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-RG to acquire the +CIEV: 1, 1 network AT+SBDWB=70 READY <binary transfer> Transfer message to A3LA-RG...
  • Page 99 Call connected at DTE rate of 9600 CONNECT ASYNC 9600 D.8 Answering a Data Call The A3LA-RG 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 (451-93156-009A)
  • Page 100 D.10 Coordination of +CLCC and +CPAS responses In order to determine the call state of the A3LA-RG, 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 101 In call - Data +CLCC: 000 +CPAS: 004 On hold - Voice +CLCC: 001 +CPAS: 000 or 003 2 or more call states, one of which is 004 e.g. Call waiting - Voice +CPAS: 000 or 003 +CLCC: 000,004 NAL Research Corporation (451-93156-009A)

  • Page 102: Appendix E: Power Consumption

    When the DPL handset is on with the backlight powered up, the DPL handset current drawn is about 350mA at 12V or about 500mA at 5V. Therefore, when a DPL handset is connected to an A3LA-RG, user must account for the added current drawn.
  • Page 103 0.25 0.20 0.15 0.10 0.05 0.00 Voltage (DC) Figure E1. Average Current Drawn During Standby. 1.50 4.0V to 5.5V 5.0V to 32V 1.25 1.00 0.75 0.50 0.25 Voltage (DC) Figure E2. Average Power Consumption During Standby. NAL Research Corporation (451-93156-009A)
  • Page 104 4.0V to 5.5V 5.0V to 32V Voltage (DC) Figure E3. Average Current Drawn During Standby with DPL Handset. 4.0V to 5.5V 5.0V to 32V Voltage (DC) Figure E4. Average Power Consumption During Standby with DPL Handset. NAL Research Corporation (451-93156-009A)
  • Page 105 4.0V to 5.5V 5.0V to 32V Voltage (DC) Figure E5. Average Current Drawn During a Data Switch Call. 4.0V to 5.5V 5.0V to 32V Voltage (DC) Figure E6. Average Power Consumption During a Data Switch Call. NAL Research Corporation (451-93156-009A)
  • Page 106 5.0V to 32V Voltage (DC) Figure E7. Average Current Drawn During an SBD Transmission. 3.00 4.0V to 5.5V 5.0V to 32V 2.25 1.50 0.75 0.00 Voltage (DC) Figure E8. Average Power Consumption During an SBD Transmission. NAL Research Corporation (451-93156-009A)
  • Page 107 4.0V to 5.5V 5.0V to 32V 0.45 0.30 0.15 0.00 Voltage (DC) Figure E9. Average Current Drawn During an SMS Transmission. 4.0V to 5.5V 5.0V to 32V Voltage (DC) Figure E10. Average Power Consumption During an SMS Transmission. NAL Research Corporation (451-93156-009A)
  • Page 108 5.0V to 32V Voltage (DC) Figure E11. Average Current Drawn During a Voice Call Using DPL Handset. 4.0V to 5.5V 5.0V to 32V Voltage (DC) Figure E12. Average Power Consumption During a Voice Call Using DPL Handset. NAL Research Corporation (451-93156-009A)

  • Page 109: Appendix F: Description Of The Iridium Network

    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. NAL Research Corporation (451-93156-009A)
  • Page 110 (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 F1. Iridium Network Data Capabilities. NAL Research Corporation (451-93156-009A)
  • Page 111 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 (451-93156-009A)
  • Page 112 , 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 (451-93156-009A)
  • Page 113 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 (451-93156-009A)
  • Page 114 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 (451-93156-009A)

  • Page 115: Appendix G: Standards Compliance

    APPENDIX G: STANDARDS COMPLIANCE The A3LA-RG 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 116 NAL Research Corporation (451-93156-009A)
  • Page 117 APPENDIX I: EXPORT COMPLIANCE INFORMATION The A3LA-RG 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 118 ANICAL DRAWINGS NAL Research Corporation (TN2012-32-V1.0)
  • Page 119 NAL Research Corporation (TN2012-32-V1.0)

Table of Contents