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NAL A3LA-RG User Manual

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451-93156-009B
Model A3LA-RG User Guide
Version B
April 06, 2022
Copyright © 2021 by NAL Research Corporation
11100 Endeavor Ct., Suite 300
Powered by
Manassas, Virginia 20109 USA
Phone: 703-392-1136
Email: contact@nalresearch.com

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  • Page 1 451-93156-009B Model A3LA-RG User Guide Version B April 06, 2022 Copyright © 2021 by NAL Research Corporation 11100 Endeavor Ct., Suite 300 Powered by Manassas, Virginia 20109 USA Phone: 703-392-1136 Email: contact@nalresearch.com...
  • Page 2 Product (including hardware, software and/or firmware) and/or the Iridium satellite 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 A3LA-RG Guide Version B EVISION ISTORY Revision Date Description 8/2/16 Initial version Added revision history; added AT^VOLB command; updated 5/20/20 address; and updated document number 07/14/2021 Updated to new template 04/06/2022 Formal release Document Number: 451-93156-009B 3 of 180...
  • Page 4 A3LA-RG Guide Version B EFERENCE OCUMENTS The latest revisions of the NAL documents are available from the NAL Research website at https://www.nalresearch.com/support/documentation-downloads/. Reference Title Revision/Date A3LA-RG Product Information Getting Started With Model A3LA-RG Version 1.1, 04/08/2013 SatTerm Software Manual (451-94000-001A)

  • Page 5: Table Of Contents

    A3LA-RG Guide Version B ABLE OF ONTENTS Introduction ....................... 19 Multi-interface Connector ..................21 RS232 Data Interface (Standard 9-Wire Configuration) ............. 22 RS232 Data Interface (3-Wire Configuration) ..............22 DC Power Input ........................24 Power On/Off Control ......................25 Audio Interface ........................26 Digital Peripheral Link (DPL)....................
  • Page 6 A3LA-RG Guide Version B On – Online ......................... 43 Qn – Quiet Mode ........................ 43 Vn – Verbose Mode ......................44 Wn – Error Correction Message Control ................44 Zn – Soft Reset ........................44 B.10 &Cn – DCD Option ....................... 44 B.11 &Dn –...
  • Page 7 A3LA-RG Guide Version B B.37 +CMGL – List SMS Messages ....................57 B.38 +CMGR – Read SMS Message ..................... 58 B.39 +CMGS – Send SMS Message....................59 B.40 +CMGW – Write SMS Message To Memory ............... 59 B.41 +CMOD – Call Mode ......................60 B.42 +CNMI –...
  • Page 8 A3LA-RG Guide Version B B.68 +CRC – Cellular Result Codes ....................76 B.69 +CVHU – Voice Hangup Control ..................77 B.70 +CCLK – Real-Time Clock ..................... 77 B.71 –MSVTS – DTMF Generation in Voice Call ................78 B.72 –MSVTR – DTMF Received in Voice Call ................79 B.73 –MSVLS –...
  • Page 9 A3LA-RG Guide Version B B.100 +CLIP – Calling Line Identification Presentation ..............99 B.101 +CLIR – Calling Line Identification Restriction ..............100 B.102 +IPR – Fixed DTE Rate ....................... 101 B.103 +SBDWT – Short Burst Data: Write a Text Message ............102 B.104 +SBDDET –...
  • Page 10 A3LA-RG Guide Version B B.132 ^KE – Key for Encryption (Encryption) ................131 B.133 ^KZ – Key Zeroization (Encryption) ................... 132 B.134 ^MODRSTn – Modem Reset Information Message Displayed ......... 132 B.135 ^MPTDC- Modem Power Toggle Data Connection ............132 B.136 ^MPTFP- Modem Power Toggle Forced Power-cycle ............
  • Page 11 A3LA-RG Guide Version B Iridium-Specific S-Register Extensions ................145 Appendix D: Summary of Result Codes ................149 Appendix E: Informative Examples ..................152 Unit Identification ......................152 Setting the Default Configuration ..................152 Power-on to Sending an SBD Message ................153 SBD Automatic Notification Registration ................
  • Page 12 A3LA-RG Guide Version B Appendix L: Mechanical Drawing ..................180 Document Number: 451-93156-009B 12 of 180...
  • Page 13 Figure 2: Multi-Interface Connector ..................... 21 Figure 3: Power Input Setting for the A3LA-RG ................24 Figure 4: A3LA-RG Connected to a DPL Handset via the HRC-24-8R ..........26 Figure 5: SAF7352-IG ........................29 Figure 6: Location of the SIM Reader ................... 30 Figure 7: Iridium Satellite Modem A3LA-RG .................
  • Page 14 A3LA-RG Guide Version B ABLE OF ABLES Table 1: Pin Assignment for the Multi-interface Connector ............21 Table 2: General RF Parameters ....................27 Table 3: Antenna Specifications ....................27 Table 4: Numeric and Verbose Mode Formats ................42 Table 5: Standard S-Registers ..................... 143 Table 6: Iridium-Specific S-Register Extensions ................
  • Page 15 A3LA-RG Guide Version B CRONYM 3GPP ......3 Generation Partnership Project AES ......Advanced Encryption Standard ASCII ......American Standard Code for Information Interchange AT .......Two-letter sequence starting a string of modem commands. The AT is intended to get the modem’s attention prior to executing a command.
  • Page 16 A3LA-RG Guide Version B FCC ......Federal Communications Commission FDMA ......Frequency-Division Multiple Access GMT ......Greenwich Mean Time GND ......Ground GPRS ......General Packet Radio Service GPS ......Global Positioning System GSM ......Global System for Mobile Communications ICCID ......Integrated Circuit Card Identifier IMEI ......International Mobile Equipment Identification I/O ......Input/output...
  • Page 17 A3LA-RG Guide Version B PCM ......Pulse-Code Modulation PDU ......Protocol Data Unit PIN ......Personal Identification Number PPP ......Point-to-Point Protocol PSTN ......Public Switched Telephone Network PUK ......Personal Unblocking Key RA .......Ring Alert RF........Radio Frequency RHCP ......Right-Handed Circular Polarization RI ........Ring Indicate RP .......Relay Protocol RTS ......Request To Send...
  • Page 18 A3LA-RG Guide Version B TPDU ......Transfer Protocol Data Unit TP-PID ......Transfer Protocol Identifier TS ........Technical Specification UART......Universal Asynchronous Receiver-Transmitter UTC ......Coordinated Universal Time VDC ......Volts (Direct Current) VSWR ......Voltage Standing Wave Ratio WAAS ......Wide Area Augmentation System XID ......Exchange Identifier...

  • Page 19: Introduction

    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 data terminal equipment (DTE) capable of sending standard AT commands via an RS232 serial port.
  • Page 20 A3LA-RG Guide Version B Important: Do not disassemble the A3LA-RG for repair or services. The warranty is voided if the A3LA-RG is disassembled. Return it to NAL Research for any services or firmware upgrade. Important: GPS antenna should only be connected to the A3LA-RG when it is not powered. Do not connect or disconnect the GPS antenna while A3LA-RG is powered.

  • Page 21: Multi-Interface Connector

    A3LA-RG Guide Version B ULTI INTERFACE ONNECTOR The multi-interface connector is a male 25-pin miniature D-sub type ( see Figure 2) that includes five interfaces—RS232, DC input power, ON/OFF control line, analog audio, and Digital Peripheral Link (DPL). The multi-interface connector pin assignments are summarized in Table 1, which is ‘pin-to-pin’...

  • Page 22: Rs232 Data Interface (Standard 9-Wire Configuration)

    AT Interface. 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 23 A3LA-RG Guide Version B SIGNAL GND). These steps ensure the A3LA-RG and DTE to work together without having hardware handshaking. 1. The modem’s DTR line must be held high. a. Using the modem’s input voltage is fine for this purpose BUT ONLY if the input voltage is less than 5 VDC (see important note below).

  • Page 24: Dc Power Input

    With the A3LA-RG held in the position shown in Figure 3 (DB25 connector to the left), the A3LA-RG is set for 4.0 V to +5.4 V when the red jumper is on the middle and left pins, and is set for +5.0 V to +32 V when the jumper is on the middle and right pins.

  • Page 25: Power On/Off Control

    RG alternates from its current on/off state. The current drawn on the external load used to pull the A3LA-RG to GND is no more than 0.5 mA. The signal on pin 1 is considered GND when it is at 0.5 V or less.

  • Page 26: Audio Interface

    UDIO NTERFACE The A3LA-RG supports both digital and analog audio I/O. The digital audio is in PCM format. In such format, digital audio cannot travel far (less than one foot); this is why the analog is chosen for the A3LA-RG audio handset. The analog audio input is a single-ended, unbalanced input with a minimum impedance of 10 kΩ...

  • Page 27: Iridium Antenna Connector

    NTENNA ONNECTOR The A3LA-RG modem uses a single TNC female 50-ohm connector for both transmit and receive (see Figure 6). Cable loss between the modem and the antenna is critical and must be kept less than 3 dB at the operating frequency of 1616 to 1626.5 MHz. The minimum link margin of 12 dB must also be maintained.
  • Page 28 A3LA-RG Guide Version B  Each bar represents a 2 dB increment.  Multiple ring channels can be present at the same time so units can lock to different signals.  If the reading is near the decision threshold, it would be easy to see a 1-bar difference.

  • Page 29: Gps Antenna Connector

    NTENNA ONNECTOR The A3LA-RG modem uses an SMA female connector for the GPS antenna (see Figure 6). Any active antenna requiring a bias voltage of approximately 3.3 VDC with <50 mA is appropriate. NAL Research offers a magnetic mount GPS antenna as well as dual Iridium/GPS antenna for use with the A3LA-RG.

  • Page 30: Sim Card Interface

    5 SIM C NTERFACE The A3LA-RG modem contains an integrated SIM reader. The modem uses and requires an Iridium SIM chip for operation. The SIM chip is inserted into the opening located at the top of the modem, as shown in Figure 6. A plastic locking mechanism holds the SIM in place. Place the SIM chip (facing down) into the SIM reader’s bracket.

  • Page 31: Led Display

    6 LED D ISPLAY The A3LA-RG has four status LEDs depicted as P for power indicator, I for Iridium satellite signal strength, G for GPS signal strength, and S for status (see Figure 7). They provide a quick visual check to ensure proper modem operations as well as a way to optimize antenna locations during field installation.

  • Page 32: Configuration Settings

    These profiles can be designated to be loaded as the active configuration upon A3LA-RG power-up through use of the AT&Yn command. o The A3LA-RG can be reset without loss of power to these profiles through use of the ATZn command.

  • Page 33: Modes Of Operation

    ODES OF PERATION 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, the RTS input is ignored, and the CTS output driven is ON (low).

  • Page 34: Bit Encryption

    RUDICS, SBD, and SMS. The A3LA-RG does not support encrypted voice calls. All voice calls are made in the ‘clear’ unless an external encryption module is hooked to it, such as the General Dynamics® Sectéra.

  • Page 35: Self-Monitoring To Prevent Modem Lock-Up

    The 9523 RF board can sometimes ‘lock-up’ when 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 watchdog timer to keep the 9523 RF board from locking up. These were done by having another microcontroller in-line with the serial communications, monitoring the communications and making sure the 9523 responds correctly.

  • Page 36: Mounting Recommendations

    11 M OUNTING ECOMMENDATIONS The A3LA-RG 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 minimum depth of 0.25 inch to accept 6-32 thread type.

  • Page 37: Technical 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 website www.nalresearch.com in the Support > Documentation & Downloads section. Document Number: 451-93156-009B 37 of 180...

  • Page 38: Appendix A: At Interface

    “No action, compatibility only.” In these cases, the basic command is accepted in the same fashion as it is with other modems, but has no effect on the operation of the A3LA-RG, because it has no meaning in the Iridium environment.
  • Page 39 Most extended commands include a prefix of + followed by a single alpha character. Prefixes used in A3LA-RG extended commands include +C, +D, +G, +I, and +S. Extended commands designed specifically for Iridium products include a –MS prefix. Most extended commands include three alpha characters after the prefix, but some commands include just one or two alpha characters after the prefix.

  • Page 40: Command And Response Characters

    OMMAND NTRY 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 41 A3LA-RG Guide Version B  If an optional parameter is omitted from an extended command, the current value is implied. Optional parameters are enclosed by square brackets ([...]) in this document.  Spaces entered into a command string for clarity between the AT prefix and the body of the command are ignored.

  • Page 42: Command Responses

    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 43: Appendix B: Command Set Description

    This is the prefix for all commands except A/ and +++. When entered on its own, the A3LA-RG will respond OK. A/ – R EPEAT OMMAND Repeat the last command issued to the A3LA-RG unless the power was interrupted or the unit is reset. A/ is not followed by <CR>. +++ – E SCAPE EQUENCE The escape sequence is used to transfer from in-call data mode to in-call command mode without disconnecting from the remote modem.

  • Page 44: Vn - Verbose Mode

    No action, compatibility only. Allowed values for n are 0 and 1. B.11 &D – DTR O PTION Set the A3LA-RG reaction to DTR signal when auto dialing is disabled (see the ^AD command). Document Number: 451-93156-009B 44 of 180...

  • Page 45: Fn - Restore Factory Settings

    ACTORY ETTINGS Recall factory defaults. 0 Recall factory default 0 B.13 &K – F ONTROL Select the flow control method between the A3LA-RG and DTE. Disables flow control Enables RTS/CTS flow control (default) B.14 &M – A SYNCHRONOUS YNCHRONOUS Select the DTR operating mode.

  • Page 46: Sn - Dsr Override

    A3LA-RG Guide Version B negotiated parameter values (such as mode of operation). The value of the register will be reset to default value (5) after the call completed. 0, 6 Normal asynchronous operation with error correction (unacknowledged mode) Asynchronous operation with error correction (acknowledged mode) (default) B.16...

  • Page 47: Kn - Control Break

    – C ONTROL REAK 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 48: Cgmi - Manufacturer Identification

    +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) B.24 +CGMI – M ANUFACTURER DENTIFICATION Exec Command: +CGMI Query A3LA-RG RF board manufacturer. Document Number: 451-93156-009B 48 of 180...

  • Page 49: Cgmm - Model Identification

    +CME ERROR: <y> where <y> can be the number or text listed below: 0 A3LA-RG RF board failure 1 no connection to A3LA-RG 2 A3LA-RG RF board-adaptor link reserved 3 operation not allowed 4 operation not supported 5 PH-SIM PIN required...
  • Page 50 A3LA-RG Guide Version B 7 PH-FSIM PUK required 10 SIM not inserted 11 SIM PIN required 12 SIM PUK required 13 SIM failure 14 SIM busy 15 SIM wrong 16 incorrect password 17 SIM PIN2 required 18 SIM PUK2 required...

  • Page 51: Cpas - Modem Activity Status

    +CPAS – M ODEM CTIVITY TATUS Exec Command: +CPAS Query A3LA-RG activity status. The response is in the form: +CPAS: <x> where <x> can take the following values: Ready (allows commands) Unavailable (does not allow commands) Unknown (may not respond to commands)

  • Page 52: Ds - Set Data Compression Function

    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 53: Dr - Data Compression Report Level

    A3LA-RG Guide Version B List the supported data compression parameters. The response is in the form: +DS: (supported<direction>s),(supported<comp_neg>s,(supported <max_dict>s),(supported<max_dict>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 will use once a data call is established due to negotiations with the other peer.

  • Page 54: Ceer - Extended Error Report

    EPORT Exec Command: +CEER Execution command causes the A3LA-RG to return information text <report> which offers the user an extended report of the reason of the failure in the last unsuccessful call setup (originating or answering) or the reason for last call release. The response is in the form: +CEER: <report>...
  • Page 55 A3LA-RG Guide Version B 21 SM transfer rejected 27 destination out of service 28 unidentified subscriber 29 facility rejected 30 unknown subscriber 38 network out of order 41 temporary failure 42 congestion 47 resources unavailable 50 facility not subscribed 69 facility not implemented...
  • Page 56 A3LA-RG Guide Version B 193 no SC subscription 194 SC system failure 195 invalid SME address 196 destination SME barred 197 SM rejected 208 SIM SMS storage full 209 no SMS storage capability in SIM 210 error in MS 211 memory capacity exceeded...

  • Page 57: Cmgf - Sms Message Format

    ORMAT 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 58: Cmgr - Read Sms Message

    <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) B.38...

  • Page 59: Cmgs - Send Sms Message

    A3LA-RG Guide Version B 2 - MO message unsent 3 - MO message sent (When reading an MT message the first time, the status is reported as 0 (unread). The status is then changed to 1 (read), and that is reported on subsequent reads of that message.)

  • Page 60: Cmod - Call Mode

    A3LA-RG Guide Version B TP data unit in octets; <pdu> is the GSM 04.11 [8] SC address followed by GSM 03.40 [9] TPDU in hexadecimal format. By default, message status will be set to ’stored unsent’, but parameter <stat> allows also other status values to be given.
  • Page 61 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.

  • Page 62: Cops - Operator Select

    Response is in the form: +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) B.43...
  • Page 63 “IRIDIUM” and the numeric format is “90103”. These are the only values accepted. Note that setting the <mode> to manual does not disable automatic registration of the A3LA-RG to the network. It just forces a manual registration procedure when entered. Read Command: +COPS? Read command returns the current mode, and will always respond with “000”...

  • Page 64: Cpbf - Find Phonebook Entries

    A3LA-RG Guide Version B B.44 +CPBF – F HONEBOOK NTRIES 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”.

  • Page 65: Cpbs - Select Phonebook Storage

    “FD”. <storage> takes the following values: FD SIM fixed dialing phonebook LD Last ten calls dialed phonebook A3LA-RG phonebook combined A3LA-RG 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 66: Cpin - Enter Pin

    NTER 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 67: Cpms - Select Preferred Sms Message Storage

    The A3LA-RG is waiting for PIN2 (used to access Fixed Dialing settings and other subscription-based features). In any of these three cases, the A3LA-RG should be available to place and receive calls. Note: +CPIN is closely related to +CLCK and +CPWD. See these commands for additional information.

  • Page 68: Creg - Network Registration

    Set command controls the presentation of an unsolicited result code +CREG: <stat> when <n>=1 and there is a change in the A3LA-RG network registration status, or code +CREG: <stat>[,<lac>,<ci>] when <n>=2 and there is a change in the registration status of the A3LA-RG.

  • Page 69: Csca - Sms Service Center Address

    Read command returns the status of result code presentation and an integer <stat> which shows the network registration status of the A3LA-RG. Location information elements <lac> and <ci> are returned only when <n>=2 and A3LA-RG is registered in the network. Response is in the form: +CREG: <n>,<stat>[,<lac>,<ci>]...

  • Page 70: Cscb - Select Cell Broadcast Message Types

    ELECT HARACTER 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”. Valid values for <chset> are: "IRA" international reference alphabet (ITU-T T.50) Read Command: +CSCS? Read command returns the current character set used.

  • Page 71: Csta - Select Type Of Address

    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) B.55 +CSTA –...

  • Page 72: Gmi - Manufacturer Identification

    Query the A3LA-RG IMEI. This command is similar to +CGSN. B.60 +GCAP – G ENERAL APABILITIES Exec Command: +GCAP Query the A3LA-RG’ overall capabilities. B.61 A – A NSWER Answer immediately. This causes the A3LA-RG to answer the incoming data or voice call. Document Number: 451-93156-009B 72 of 180...

  • Page 73: D - Dial

    B.62 D – D 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. The following are valid numbers: 0123456789*#ABC.

  • Page 74: Hn - Hangup

    XTENDED ESULT ODES Select the response set to be used by the A3LA-RG when informing the DTE of the results of a command or data or voice call. 0 OK, CONNECT, RING, NO CARRIER, NO ANSWER and ERROR Document Number: 451-93156-009B...

  • Page 75: Clvl - Volume Level Control

    A3LA-RG Guide Version B CONNECT response is used to inform of 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.

  • Page 76: Cmut - Mute Control

    0 Disable extended format (default) 1 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 77: Cvhu - Voice Hangup Control

    +CCLK – R LOCK 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.

  • Page 78: Msvts - Dtmf Generation In Voice Call

    A3LA-RG Guide Version B zone feature is 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= “11/05/15,22:10:00”.

  • Page 79: Msvtr - Dtmf Received In Voice Call

    A3LA-RG Guide Version B B.72 –MSVTR – DTMF R ECEIVED IN OICE Set Command: –MSVTR=[<mode>] Disable or enable the receiving of DTMF messages from the network. <mode> takes one of the following values: 0 Receiving of DTMF disabled (default) 1 Receiving of DTMF enabled...

  • Page 80: Msstm - Request System Time

    Query the latest system time received from the network. The response is the form: –MSSTM: <system_time> <system_time> can take one of the following forms: no network service The A3LA-RG has not yet received system time from the network. XXXXXXX Where XXXXXXXX is the current Iridium system time available from the network.

  • Page 81: Msgeo - Request Geolocation

    90 ms. 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 82: Ccfc - Call Forward Service

    A3LA-RG Guide Version B B.76 +CCFC – C ORWARD ERVICE Exec Command: +CCFC=<reason>,<mode>[,<number>[,<type>[,class>[,<subaddr>[,<satype>[,<time >]]]]]] This command is based on GSM 07.07 [2] sub clause 7.10, and allows control of the call forwarding supplementary service according to GSM 02.82 [11]. Registration, erasure and status query are supported.

  • Page 83: Clcc - Request Current Call Status

    (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-RG returns a response in the form: +CCFC:<status>,<class>[,<number>,<type>] where <status> may be as follows:...

  • Page 84: Cnum - Read Msisdn Numbers

    A3LA-RG Guide Version B Note: the form of this announcement 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 – R MSISDN N...
  • Page 85 1-105. Default is 105. <k2> represents the maximum number of sequentially numbered I frames that may be outstanding at any given time at uplink direction (A3LA-RG->IWF) and can take the following values: 1-105. Default is 105. <t1> is used to supervise the acknowledgment of transmitted unnumbered frames.

  • Page 86: Wfrng - Force Irlp Renegotiation

    A3LA-RG Guide Version B 20-255 (in 10-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 proper operation of the IRLP procedures, t2 should be less than t1 and 2*t4 should be less than t1.

  • Page 87: Wtm - Irlp Test Mode

    A3LA-RG Guide Version B 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 <frng>s) B.82 +WTM – IRLP T Set Command: +WTM=<tm>...

  • Page 88: Wdav - Register Or Deregister An Rs232 Dav Data Peripheral

    Exec Command: +SBDWB=[<SBD message length>] This command is used to transfer a binary SBD message from the DTE to the single mobile originated buffer in the A3LA-RG. The mobile originated buffer can contain only one message at any one time.

  • Page 89: Sbdrb - Short Burst Data: Read Binary Data

    A3LA-RG Guide Version B  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 90: Sbdrt - Short Burst Data: Read Text Message

    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 91: Sbdd - Short Burst Data: Clear Sbd Message Buffer(S)

     The mobile terminated buffer will be cleared when an SBD session is initiated.  Sending a message from the A3LA-RG to the ESS does not clear the mobile originated buffer.  Reading a message from the A3LA-RG does not clear the mobile terminated buffer.

  • Page 92: Sbds - Short Burst Data: Status

    <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: 0: No message in mobile originated buffer 1: Message in mobile originated buffer <MOMSN>: The MOMSN identifies the sequence number that will be used during the...

  • Page 93: Car - Audio Output Control

    This command will transfer the contents of the mobile originated buffer to the mobile terminated buffer. Developers of DTE can use this command to test reading and writing to the A3LA-RG without actually initiating SBD sessions with the ESS. Command Response:...

  • Page 94: Cier - Indicator Event Reporting

    EPORTING Set Command: +CIER=[<mode>[,<sigind>[,<svcind>]]] The set command enables or disables sending of the +CIEV unsolicited result code by the A3LA-RG in case of indicator state changes. <mode> controls the processing of the +CIEV unsolicited result codes. <mode>: Disable indicator event reporting; do not send +CIEV unsolicited result codes to the DTE;...
  • Page 95 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 96: Cris - Ring Indication Status

    A3LA-RG Guide Version B B.95 +CRIS – R NDICATION TATUS Exec Command: +CRIS Query the ring indication status, returning the reason for the most recent assertion of the Ring Indicate signal. The response contains separate indications for telephony and SBD ring indications.

  • Page 97: Culk - Unlock

    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 98: Cvmi - Voicemail Indication

    Permanently locked – A3LA-RG is locked and unable to perform SBD sessions. It cannot be unlocked and must be returned to the supplier. Read Command: +CULK? Query the current SBD lock status of the A3LA-RG. The response is of the form: +CULK:<status> <status>:...

  • Page 99: Ciccid - Read Icc Id From Sim

    DENTIFICATION RESENTATION Exec Command: +CLIP=<n> 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 100: Clir - Calling Line Identification Restriction

    DENTIFICATION ESTRICTION Exec Command: +CLIR=<n> 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 to the called party in the next mobile originated call.

  • Page 101: Ipr - Fixed Dte Rate

    DTE R IXED 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 102: Sbdwt - Short Burst Data: Write A Text Message

     The message is terminated when a carriage return is entered 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>”...

  • Page 103: Sbddet - Short Burst Data: Detach

    36.. Reserved, but indicate failure if used This instructs the GSS to disable (detach) SBD ring alerts for the calling A3LA-RG. Successful completion of the detach command implies that the GSS has performed the requested detach action and the A3LA-RG is no longer registered for SBD ring alerts.

  • Page 104: Sbdi - Short Burst Data: Initiate An Sbd Session

     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 Command Response: +SBDI:<MO status>,<MOMSN>,<MT status>,<MTMSN>,<MT length>,<MT queued>...

  • Page 105: Sbdix[A] - Short Burst Data: Initiate An Sbd Session Extended

    <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 106  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 107 Link failure (A protocol error caused termination of the call) 20..31 Reserved, but indicate failure if used No network service, unable to initiate call 33..34 Reserved, but indicate failure if used A3LA-RG is busy, unable to initiate call 36.. Reserved, but indicate failure if used Document Number: 451-93156-009B...

  • Page 108: Sbddsc - Short Burst Data: Delivery Short Code

    <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 109: Sbdmta - Short Burst Data: Mobile-Terminated Alert

    <status>: 0 Disable ring indication 1 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 110 Degrees longitude (000-179) Minutes longitude (00-59) mmm 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 (-).
  • Page 111 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-RG. The response is of the form: +SBDREG:<status> <status>: Document Number: 451-93156-009B 111 of 180...

  • Page 112: Sbdareg - Short Burst Data: Automatic Registration

    SBD auto-registration when it determines that it has moved sufficiently far away from its last registered location. Note that auto-registration runs only while the A3LA-RG is attached to the GSS, i.e. the registration status is “Not registered” or “Registered”.
  • Page 113 A3LA-RG Guide Version B When auto-registration is enabled, mode 1 or 2, the A3LA-RG reports relevant events to the DTE by issuing an unsolicited result code +AREG:<event>,<reg error>. <event>: 0 Suggest DTE makes a registration attempt (mode 2 only) 1 Auto-registration has been performed successfully (mode 1 only) 2 Auto-registration has failed and will be retried after a delay (mode 1 only) <reg error>:...

  • Page 114: Sbdsx - Short Burst Data: Status Extended

    1 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 115: Ccwa - Call Waiting Service

    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 116 GSM supplementary services is described in the GSM standard. Defined values <n> (sets/shows the result code presentation status in the A3LA-RG): 0 disable unsolicited result presentation 1 enable unsolicited result presentation On a DTE-DCE command, <n>...

  • Page 117: Clck - Facility Lock

    +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. Then, if <n> has previously been set to ‘1’, the A3LA-RG will send an unsolicited result code to the DTE, e.g.:...
  • Page 118 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 119 A3LA-RG Guide Version B "AB" All Barring services (refer GSM 02.30 [5]) (applicable only for <mode>=0). The Call Barring password is required as <passwd>. Note: Several GSM standard facility codes including the following are NOT supported: "OI" BOIC (Bar Outgoing International Calls) (refer GSM 02.88 [4] clause 1). All Iridium calls are International, so this facility should not be exercised by a user interface.

  • Page 120: Cpwd - Change Password

    A3LA-RG Guide Version B 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 121: Csdt - Sidetone

    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 122: Cdsi - Report Sms Status

    A3LA-RG Guide Version B B.116 +CDSI – R SMS S EPORT TATUS This announcement is sent when the network responds after a mobile-originated SMS send attempt. Exec Command: none Unsolicited Announcement: +CDSI:<status> where: <status>: 0..255 Success code or failure cause (TD_SMS_RP_CAUSE_*)

  • Page 123: Pa - Gps: List Of Nmea Message Formats

    This command returns the complete NMEA message format, where <n> is a hexadecimal number corresponding to the following NMEA and proprietary u-blox formats. Since the A3LA-RG does not have a GPS receiver, this command always returns no GPS information. 1 – GGA 2 –...

  • Page 124: Pd - Gps: Utc Date

    A3LA-RG Guide Version B B.118 +PD – GPS: UTC D Exec Command: +PD This command returns UTC date with the format shown below. The <Invalid Position Fix> message will appear only if the GPS receiver could not acquire a position fix.
  • Page 125 A3LA-RG Guide Version B Returns the current settings with the messages displayed as a hexadecimal number showing what messages are set to be sent. The bit correspondence is as follows: Message Not Used Not Used Not Used Not Used Not Used...

  • Page 126: Gps: Display Position To 4Th Decimal Place

    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. Command Response: +PLOC Latitude:<||>:<mm>.<nnnnn>...

  • Page 127: Gps: Utc Time

    A3LA-RG Guide Version B <||> Latitude in degrees (00-90) <mm> Latitude in minutes (00-59) <nnnnn> Fraction of minutes (00000-99999) <N/S> Either North or South depending on the direction <ooo> Longitude in degrees (000-180) <pp> Longitude in minutes (00-59) <qqqqq> Fraction of minutes (00000-99999) <E/W>...

  • Page 128: Pvel - Gps: Gps Velocity

    A3LA-RG Guide Version B could not acquire a position fix. The AT+PVEL command is recommended to obtain velocity information because this command also lists the vertical velocity and will sometimes indicate dead reckoning instead of listing Invalid Position Fix. Command Response: +PV Ground Velocity=<#s>...

  • Page 129: Aa - Auto Answer Display

    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. The ^ADR command controls the retry delay in between dial attempts.

  • Page 130: Ccop - Change Crypto Officer Password (Encryption)

    The password will not be reset by AT command &F. When the A3LA-RG is set to echo, all entries are replaced with asterisks (*) instead of the actual typed value. All passwords must be between 8 and 16 characters in length.

  • Page 131: Ke - Key For Encryption (Encryption)

    A3LA-RG Guide Version B by &F. The password and key will not be echoed. This command must be entered twice before an update is made. Note: The decryption key must match the encryption key at the base station or network operation center (NOC).

  • Page 132: Kz - Key Zeroization (Encryption)

    A3LA-RG Guide Version B B.133 ^KZ – K EROIZATION NCRYPTION Exec Command: ^KZ=<password> Reset or zeroize the encryption and the decryption keys and stop encryption until the keys are re-entered with the AT^KD and AT^KE commands. <password>: The Crypto Officer Password must be enclosed by two single quotes (‘...

  • Page 133: Mptfp- Modem Power Toggle Forced Power-Cycle

    A3LA-RG Guide Version B Test Command: ^MPTDC=? List the supported modem power toggle data connection modes. The response is in the form: ^MPTDC: (supported <mode>s) B.136 ^MPTFP- M ODEM OWER OGGLE ORCED OWER CYCLE Exec Command: ^MPTFP = [<mode>] Enable or disable the modem power toggle forced power-cycle functionality. Every twenty-four hours the modem will attempt to find a period of inactivity to cycle the power.

  • Page 134: Mptnc- Modem Power Toggle Not In Data Connection

    A3LA-RG Guide Version B force a registration. The modem is registered to the Iridium network by dialing a dummy number. The forced registration will not occur during a data connection because it is assumed that the modem is registered. <mode> takes the following values: 0 Disable the MPT forced registration functionality.

  • Page 135: Msb - Motion Sensor Begin

    A3LA-RG Guide Version B List the supported modem power toggle not data connection modes. The response is in the form: ^MPTNC: (supported <mode>s) B.139 ^MSB – M OTION ENSOR EGIN Exec Command: ^MSB=<m>,<s> This determines the number of minutes to look for motion for before the unit wakes <m>: Number of minutes to wait to determine movement.

  • Page 136: Pktst - Packet Send Timer

    A3LA-RG Guide Version B ^PKTS: <pkts> Test Command: ^PKTS=? List the supported <pkts> Response is in the form: ^PKTS: (supported <pkts>s) B.141 ^PKTST – P ACKET IMER Exec Command: ^PKTST=<timer> Sets the timeout interval for when to send a packet if the packet threshold size has not been reached.

  • Page 137: Pktth - Packet Send Threshold

    A3LA-RG Guide Version B Test Command: ^PKTRT=? List the supported <timer> Response is in the form: ^PKTRT: (supported <timer>s) B.143 ^PKTTH – P ACKET HRESHOLD Exec Command: ^PKTTH =<threshold> Set the threshold size in bytes of the payload of a packet.

  • Page 138: Rle - Use Run Length Encoding

    A3LA-RG Guide Version B B.146 ^RLE – U ENGTH NCODING Exec Command: ^RLE=<rle> Set the modem to utilize run length encoding for data transfers. <rle> can have the following values: 0 Do not use run length encoding 1 Use run length encoding Read Command: ^RLE? Query the current setting if the unit will use packets.

  • Page 139: Smsd - Sms Delete

    A3LA-RG Guide Version B ^SE: =<imei>,<blocks>,<timeout> Test Command: ^SE=? Test command returns lists of memory storages supported by the A3LA-RM. Response is in the form: ^SE: (list of supported <imei >s),(list of supported <blocks>s), (list of supported <timeout>s) B.148 ^SMSD – SMS D ELETE Exec Command: ^SMSD=<n>...

  • Page 140: Ssi - Send Start-Up Information

    A3LA-RG Guide Version B B.151 ^SSI – S TART NFORMATION Exec Command: ^SSI=<n> This command sets whether or not to display the start-up information. <n>: B.152 D O NOT DISPLAY THE START UP INFORMATION 1 Display the start-up information Read Command: ^SSI?

  • Page 141: Volb - Volume Boost

    A3LA-RG Guide Version B Returns whether <n> is set to 0 or 1 and then one of the following messages will appear:  "Encryption Disabled No Keys Entered"  (“Encryption Currently Enabled” OR “Encryption Currently Disabled”) AND ("Set to be Enabled Next Power Cycle" OR "Set to be Disabled Next Power Cycle")

  • Page 142: Appendix C: S-Register Definitions

    A3LA-RG Guide Version B C: S-R PPENDIX EGISTER EFINITIONS S-registers allow control over specific A3LA-RG operations. Some S-registers contain a single numeric value. Other S-registers are bitmapped where individual bits, or sets of bits, control specific functions. C.1 S-R EGISTER OMMANDS Commands allow S-registers to be read, written, or simply referenced (i.e., set a pointer to...

  • Page 143: Standard S-Registers

    A3LA-RG Guide Version B C.2 S TANDARD EGISTERS Table 5: Standard S-Registers Sr=n Command Register Range Default Description Write Protected in Number SAC0201 0 – 127 Carriage return character 0 – 127 Line feed character 0 – 32 Backspace character Wait for dial tone 0 –...
  • Page 144 A3LA-RG Guide Version B Table 5: Standard S-Registers Sr=n Command Register Range Default Description Write Protected in Number SAC0201 Bitmap register where bits 0 and 1 reflect the speaker volume setting, bits 0 – 255 2 and 3 reflect the speaker on/off setting, and bits 4, 5, and 6 reflect the Xn setting.

  • Page 145: Iridium-Specific S-Register Extensions

    A3LA-RG Guide Version B Table 5: Standard S-Registers Sr=n Command Register Range Default Description Write Protected in Number SAC0201 Bitmap register where bits 2, 3, and 4 reflect the \K setting, bits 6 and 7 reflect the \An setting, and bits 3-5 0 –...
  • Page 146 A3LA-RG Guide Version B Table 6: Iridium-Specific S-Register Extensions Sr=n Command Register Range Default Description Write Protected in Number SAC0201 Bitmap register where bit 7 reflects the +DR setting, bits 0-1 reflect the 0 – 255 data compression type (PT), and bit 6 reflects the +DS compression negotiation setting.
  • Page 147 A3LA-RG Guide Version B Table 6: Iridium-Specific S-Register Extensions Sr=n Command Register Range Default Description Write Protected in Number SAC0201 V.42bis maximum codewords (P1), 0 – 255 high byte V.42bis maximum codewords (P1), 0 – 255 low byte 0 – 255 V.42bis maximum string size (P2)
  • Page 148 A3LA-RG Guide Version B Table 6: Iridium-Specific S-Register Extensions Sr=n Command Register Range Default Description Write Protected in Number SAC0201 Bitmap register: bit 0: unused bit 1 = +WTM S123 0 – 255 bit 2 = +WDLDM<dldm> bit 3 = +WIRLP<mode>...

  • Page 149: Appendix D: Summary Of Result Codes

    A3LA-RG Guide Version B D: S PPENDIX UMMARY OF ESULT ODES The following tables list the result codes returned by the A3LA-RG. Table 7: V.25ter/Hayes Result Codes Numeric (V0) Verbose (V1) Description Acknowledges execution of command; voice ‘OK’ call connection has been established.

  • Page 150: Table 8: Gsm 7.07 Result Codes

    A3LA-RG Guide Version B Table 7: V.25ter/Hayes Result Codes Numeric (V0) Verbose (V1) Description ‘CARRIER 2400’ Data rate detected at 2400 bps. ‘CARRIER 4800’ Data rate detected at 4800 bps. ‘CARRIER 7200’ Data rate detected at 7200 bps. ‘CARRIER 9600’...

  • Page 151: Table 9: Gsm 7.05 Result Codes

    A3LA-RG Guide Version B Table 8: GSM 7.07 Result Codes Numeric Verbose (V1) Description (V0) as verbose ‘+CRING: REL ASYNC’ Asynchronous nontransparent data as verbose ‘+CRING: VOICE’ Voice call connection Table 9: GSM 7.05 Result Codes Numeric (V0) Verbose (V1)

  • Page 152: Appendix E: Informative Examples

    AT+CGSN Get IMEI 300001000000000 E.2 S ETTING THE EFAULT ONFIGURATION The DTE sets the A3LA-RG’s default configuration to no flow control and SBD automatic notifications enabled. Table 12: Default Configuration To A3LA-RG (from DTE) To DTE (from A3LA-RG) Description AT&K0...

  • Page 153: Power-On To Sending An Sbd Message

    OWER ON TO ENDING AN ESSAGE The DTE will turn on the A3LA-RG, wait for the A3LA-RG to acquire the network, and send a 70- byte message. Table 13: Power-on to Sending an SBD Message To A3LA-RG (from DTE) To DTE (from A3LA-RG)

  • Page 154: Sbd Automatic Notification Registration

    To DTE (from A3LA-RG) Description Query the A3LA-RG registration AT+SBDREG? status A3LA-RG is detached, i.e., +SBDREG: 0 unregistered Tell the A3LA-RG to register for AT+SBDREG automatic notifications +SBDREG: 2,0 A3LA-RG is now registered Query the A3LA-RG registration AT+SBDREG? status +SBDREG: 2...

  • Page 155: Sbd Automatic Notification Automatic Registration

    To DTE (from A3LA-RG) Description DTE initiates an SBD session in AT+SBDIXA answer to the automatic notification A3LA-RG informs DTE that a 90- byte message was successfully +SBDIXA:0,23,1,237,90,2 received with MTMSN 237 and that two further MT messages are queued at the GSS...

  • Page 156: Answering A Data Call

    CONNECT ASYNC 9600 E.8 A NSWERING A 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. Table 18: Commands to Accept Mobile-Terminated Data Calls To A3LA-RG (from DTE)

  • Page 157: Coordinating +Clcc And +Cpas Responses

    OORDINATING ESPONSES 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 158 A3LA-RG Guide Version B Table 20: Coordinating +CLCC and +CPAS Responses Extended Ring Call State +CLCC Response +CPAS Response Message Alerting after ATD command aborts call command aborts call dialing – Data Ringing – Voice +CLCC: 004 +CPAS: 003 CRING: VOICE Ringing –...

  • Page 159: Appendix F: Power Consumption

    The A3LA-RG can be connected to a DPL handset through an HRC-24-8R data kit to make voice calls. The DPL handset requires 12 V, which is supplied by the A3LA-RG through pin 2 of the multi-interface connector. When the DPL handset is on with the backlight turned on, the DPL handset current drawn is about 350 mA at 12 V or about 500 mA at 5 V.

  • Page 160: Figure 8: Average Current Drawn During Standby

    A3LA-RG Guide Version B 0.30 4.0V to 5.5V 5.0V to 32V 0.25 0.20 0.15 0.10 0.05 0.00 Voltage (DC) Figure 8: 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)

  • Page 161: Figure 10: Average Current Drawn During Standby With Dpl Handset

    A3LA-RG Guide Version B 4.0V to 5.5V 5.0V to 32V Voltage (DC) Figure 10: Average Current Drawn During Standby with DPL Handset 4.0V to 5.5V 5.0V to 32V Voltage (DC) Figure 11: Average Power Consumption During Standby with DPL Handset...

  • Page 162: Figure 12: Average Current Drawn During A Data Switch Call

    A3LA-RG Guide Version B 4.0V to 5.5V 5.0V to 32V Voltage (DC) Figure 12: Average Current Drawn During a Data Switch Call 4.0V to 5.5V 5.0V to 32V Voltage (DC) Figure 13: Average Power Consumption During a Data Switch Call...

  • Page 163: Figure 14: Average Current Drawn During An Sbd Transmission

    A3LA-RG Guide Version B 4.0V to 5.5V 5.0V to 32V Voltage (DC) Figure 14: 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 15: Average Power Consumption During an SBD Transmission...

  • Page 164: Figure 16: Average Current Drawn During An Sms Transmission

    A3LA-RG Guide Version B 0.60 4.0V to 5.5V 5.0V to 32V 0.45 0.30 0.15 0.00 Voltage (DC) Figure 16: Average Current Drawn During an SMS Transmission 4.0V to 5.5V 5.0V to 32V Voltage (DC) Figure 17: Average Power Consumption During an SMS Transmission...

  • Page 165: Figure 18: Average Current Drawn During A Voice Call Using Dpl Handset

    A3LA-RG Guide Version B 4.0V to 5.5V 5.0V to 32V Voltage (DC) Figure 18: Average Current Drawn During a Voice Call Using DPL Handset 4.0V to 5.5V 5.0V to 32V Voltage (DC) Figure 19: Average Power Consumption During a Voice Call Using DPL Handset...

  • Page 166: Appendix G: The Iridium Network

    A3LA-RG Guide Version B G: T PPENDIX RIDIUM ETWORK The Iridium satellite network is owned and operated by Iridium Communications Inc. It is constructed as a constellation of 66 satellites in low-earth orbit, terrestrial gateways, and Iridium subscriber units (ISUs). An ISU can either be an Iridium satellite phone or various types of modems.

  • Page 167: Iridium Network Data Capabilities

    A3LA-RG Guide Version B beams are shut down. The satellite footprint is approximately 4,700 km in diameter. Under each footprint, a satellite is power-limited to approximately 1,100 simultaneous circuits. The Iridium network uses a time division duplex (TDD) method and transmits and receives in an allotted time window within the frame structure.

  • Page 168: Dial-Up Data Service

    A3LA-RG Guide Version B Figure 21: Iridium Network Data Capabilities G.2 D ERVICE Dial-up data service provides connectivity through the Iridium satellite network to another Iridium modem, to the public switched telephone network (PSTN), to the Defense Switch Network (DSN), to a remote LAN (e.g., a corporate network), or to an internet service provider (ISP) at a nominal data rate of 2.4 kilobits per second (kbps).

  • Page 169: Figure 22: Pstn Dial-Up Connectivity

    A3LA-RG Guide Version B to a specific modem with a phone number to dial, user identification, and password. The modem can then be used to call another computer, a remote LAN, or an Internet service provider, as shown in Figure 22. The handshaking and protocols are established between the modems independent of the landline.

  • Page 170: Direct Internet Connection

    A3LA-RG Guide Version B Figure 23: Iridium Dial-up Data Service G.3 D IRECT NTERNET ONNECTION The Iridium Direct Internet service allows users to connect to the internet via the Iridium gateway without having to sign up with an internet service provider. This service utilizes a dedicated Apollo Server at the Iridium gateway, which provides high-speed connectivity to the internet and optimizes server-to-Iridium modem communications.

  • Page 171: Short Burst Data (Sbd)

    A3LA-RG Guide Version B 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 compression. The channel rate is still 2.4 kbps. However, 10 kbps effective throughput can be achieved depending on content (graphics and images result in lower effective throughput).

  • Page 172: G.6 Rudics

    A3LA-RG Guide Version B With this option, the originator gets a confirmation that the message was delivered to the SMSC. Unlike standard GSM, the Iridium SMS can only acknowledge that the message was delivered to the SMSC and not the end destination.
  • Page 173 A3LA-RG Guide Version B along the satellite’s ground path and tend to increase with distance from the satellite. Geolocation errors in the east-west dimension, therefore, are sometimes more than 100 times greater than in the north-south dimension. Document Number: 451-93156-009B...

  • Page 174: Appendix H: Standards Compliance

    TANDARDS OMPLIANCE The A3LA-RG comprises 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 approximately 3 dBi and adequate shielding.

  • Page 175: Figure 24: Certificate Of Compliance

    A3LA-RG Guide Version B Figure 24: Certificate of Compliance Document Number: 451-93156-009B 175 of 180...

  • Page 176: Appendix I: Export Compliance

    The A3LA-RG is controlled by the export laws and regulations of the United States of America (USA). It is the policy of NAL Research to fully comply with all U.S. export and economic sanction laws and regulations. The export of NAL Research products, services, hardware, software, and technology must be made only in accordance with the laws, regulations, and licensing requirements of the U.S.

  • Page 177: Appendix J: Design Specifications

    A3LA-RG Guide Version B J: D PPENDIX ESIGN PECIFICATIONS J.1 M ECHANICAL PECIFICATIONS Dimensions:..............102 mm x 61 mm x 24 mm (4.0” x 2.43” x 0.95”) Weight: ...............201 g (7.1 ounces) Multi-interface Connector: ........25-pin male D-sub Iridium Antenna: ............TNC female connector GPS Antenna: .............SMA female connector...

  • Page 178: Environmental Specifications

    A3LA-RG Guide Version B Note: The power requirements apply to DC power measured at the A3LA-RG 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. J.4 E...

  • Page 179: Appendix K: Gps Receiver Specifications

    A3LA-RG Guide Version B K: GPS R PPENDIX ECEIVER PECIFICATIONS The standard A3LA-RG hardware configuration has a u-blox MAX-6Q GPS receiver. The specifications are below. Receiver Type: ............50-channel u-blox 6 engine L1 frequency (1575.42 MHz carrier frequency), C/A code SBAS: WAAS, EGNOS, MSAS Maximum update rate: ..........5 Hz...

  • Page 180: Figure 25: Al3A-Rg Mechanical Drawing

    A3LA-RG Guide Version B L: M PPENDIX ECHANICAL RAWING Figure 25: AL3A-RG Mechanical Drawing Document Number: 451-93156-009A 180 of 180...

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