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NAL Research Corporation (TN2012-02-V1.0) 

13 

use.  They  can  be  changed  by  the  users  individually  via  specific  AT  commands.  The  factory  default 

configuration is stored in permanent memory. This configuration can be recalled at any time through use of 
the AT&Fn command. 

 

Two  groups  of  settings,  or  “profiles”,  can  be  stored  as  user-defined  configurations.  Users  first  create 

desired active configurations and then write them to memory using the AT&Wn command. These profiles can 
be designated to be loaded as the active configuration upon A3LA-RS power-up through use of the AT&Yn 
command.  The  A3LA-RS  can  be  reset  without  loss  of  power  to  these  profiles  through  use  of  the  ATZn 
command. The configuration settings are stored in “S-register” locations and are detailed in Appendix A. 
 

7.0 MODES OF OPERATION 
 

The A3LA-RS serial data port is always in one of three modes: command mode, SBD data mode or SBD 

session mode. When the data port is in command mode, AT commands can be entered to control the A3LA-

RS. In command mode, flow control has no effect, with the RTS input ignored and the CTS output driven ON 
(low). When in SBD data mode, the A3LA-RS is transferring binary or text SBD message data to or from the 
DTE. In SBD data mode: 

1.

 

All characters from the DTE not forming part of the message data are ignored (i.e. no AT commands 
may be entered). 

2.

 

No unsolicited result codes are issued. 

3.

 

RTS/CTS flow control, if enabled, is active. When RTS is OFF (high), the A3LA-RS suspends transfer 
of data to the DTE; when CTS is OFF (high), the A3LA-RS expects the DTE to suspend transfer of 
data. 

 

When in SBD session mode, the A3LA-RS is attempting to conduct an SBD session with the network. In 

SBD session mode: 

1.

 

The DTE must wait for the +SBDI [X][A] session result code. 

2.

 

All characters from the DTE are ignored. 

3.

 

Unsolicited result codes are issued where those codes have been enabled. 

 

Transitions between the modes of operation are performed automatically by the A3LA-RS in response to 

the SBD AT commands; the DTE has no other control over the mode. 
 

8.0 MOUNTING RECOMMENDATIONS 
 

The  A3LA-RS  has  four  features  on  its  bottom  surface  that  can  aid  in  its  mounting  (see  Appendix  H). 

These four features are pre-drilled at a minimum depth of 0.25 inch to accept 2-56 thread type. 

 

9.0 BOARD LEVEL OPTION (A3LA-RSP) 

 

NAL Research also offers the A3LA-RS without the housing for application developers who wish to 

integrate the modem boards directly into their products

. The exploded view of the A3LA-RS is shown in 

Figure 7. Part number for the board-level is A3LA-RSP. NAL Research ships the A3LA-RSP with the following 
items  included  –  item  6  (RF  board  mounting  screws),  item  9  (antenna  cable),  item  10  (antenna  washer), 
item 11 (antenna nut), item 12 (Iridium 9523 RF board), item 13 (NAL Research SIM reader circuit and PA 
boost circuit), and DB15 connector (not soldered on the board). 

Содержание A3LA-RS

Страница 1: ...OF MODEL A3LA RS Version 1 0 March 19th 2012 TN2012 02 V1 0 Copyright 2012 by NAL Research Corporation 9385 Discovery Boulevard Suite 300 Manassas Virginia 20109 USA Phone 703 392 1136 x203 E mail con...

Страница 2: ...e performance or nonperformance of any products accessories facilities or services or information except as expressly stated in this guide and or the Product and or satellite service documentation Any...

Страница 3: ...file 9 3 6 TX_ACTIVE Line 9 4 0 ANTENNA CONNECTOR 11 5 0 SIM CARD INTERFACE 12 6 0 CONFIGURATION SETTINGS 12 7 0 MODES OF OPERATION 13 8 0 MOUNTING RECOMMENDATIONS 13 9 0 BOARD LEVEL OPTION 13 10 0 TE...

Страница 4: ...ubscriber Units Modems Phones Trackers LBT L Band Transceiver NIPRNET Non Secure Internet Protocol Router Network NOC Network Operation Center OFAC Office of Foreign Asset Controls PSTN Public Switch...

Страница 5: ...Internet Connection using Apollo Emulator only for DoD EMSS Gateway 4 Short Message Service SMS 5 Short Burst Data SBD 6 Router Based Unrestricted Digital Internetworking Connectivity Solution RUDICS...

Страница 6: ...Environmental Specifications Operating Temperature Range 30o C to 70o C 22o F to 158o F Operating Humidity Range 75 RH Storage Temperature Range 40o C to 85o C 40o F to 185o F Storage Humidity Range 9...

Страница 7: ...s Normally this is set to in register S2 see Appendix A for details Note that the Ring Indicator is used by the A3LA RS to indicate that a Mobile Terminated SBD MT SBD message is queued at the gateway...

Страница 8: ...hence it is incompatible with a 3 wire serial configuration The Direct Internet with Apollo client is available only on the EMSS DoD gateway and NOT on the commercial gateway 3 3 DC Power Input The D...

Страница 9: ...The actual usage profile can vary for a number of reasons Users are reminded to optimize their setup to attain the lowest possible power consumption Some of the setup parameters to be carefully observ...

Страница 10: ...0 4 5 5 0 5 5 6 0 Voltage DC 0 00 0 15 0 30 0 45 0 60 Current A Figure 3 Average current drawn during a data switch call 3 0 3 5 4 0 4 5 5 0 5 5 6 0 Voltage DC 0 00 0 15 0 30 0 45 0 60 Current A Figur...

Страница 11: ...ECTOR The A3LA RS modem uses a single SMA female 50 ohm connector for both transmit and receive Cable loss between the modem and the antenna is critical and must be kept less than 3dB at the operating...

Страница 12: ...nd requires an Iridium SIM chip for operation The SIM chip is detached from the full size Iridium SIM card The SIM chip is inserted into the opening located on top of the modem A plastic locking mecha...

Страница 13: ...s may be entered 2 No unsolicited result codes are issued 3 RTS CTS flow control if enabled is active When RTS is OFF high the A3LA RS suspends transfer of data to the DTE when CTS is OFF high the A3L...

Страница 14: ...id 3 A3LA RS SIM lid 4 1 8 2 56 flat head screw 5 1 4 2 56 flat head screw 6 3 16 2 56 flat head screw 7 M1 6 socket head screw 5mm 8 3 16 x 3 16 hex SS standoff 9 SMA to U FL cable 100mm 10 SMA washe...

Страница 15: ...r as defined in Table 1 Pin 9 locates immediately below in 1 Users MUST choose DC power input wires appropriately to handle high current drawn In addition shielded RS232 lines are recommended NOTE Whe...

Страница 16: ...d in the same fashion as is with other modems but has no effect on the operation of the A3LA RS since it has no meaning in the Iridium environment A 3 Extended Commands Extended commands perform actio...

Страница 17: ...commands or parameters the high order bit is ignored Upper case characters are equivalent to lower case characters A 5 Command Entry An AT command is a string of characters sent by the DTE to the A3L...

Страница 18: ...gsn cmee cpbr 1 12 msvtr all lower case AT X 0 V GSN CMEE CPBR 1 12 MSVTR all upper case ATX 0 V GSN CMEE CPBR 1 12 MSVTR space omitted between AT and X ATX0 V GSN CMEE CPBR 1 12 MSVTR space omitted...

Страница 19: ...A 8 Command Set Description A 8 1 AT Attention Code This is the prefix for all commands except A and When entered on its own the A3LA RS will respond OK A 8 2 A Repeat Last Command Repeat the last co...

Страница 20: ...TR signal 0 DTR is ignored in all modes A DTR signal input is not needed when set to D0 For all other Dn settings the following applies DTR must be ON during on hook command mode If DTR transitions fr...

Страница 21: ...mode This is an extension of the M command and is used to control the connection modes permitted Note The register is not updated right after the user requests new values because the requested values...

Страница 22: ...r mode 0 Enter in call command mode no break sent to remote modem 1 Clear data buffers and send break to remote modem 2 Same as 0 3 Send break to remote modem immediately 4 Same as 0 5 Send break to r...

Страница 23: ...pported ce s A 8 24 CGMI Manufacturer Identification Exec Command CGMI Query A3LA RS RF board manufacturer A 8 25 CGMM Model Identification Exec Command CGMM Query A3LA RS RF board model A 8 26 CGMR R...

Страница 24: ...nvalid characters in text string 26 dial string too long 27 invalid characters in dial string 28 number is SIM fixed dialing restricted 30 no network service 31 network timeout 32 emergency calls only...

Страница 25: ...rting default 1 Enable reporting If reporting is enabled the intermediate result code CR serv is returned by the A3LA RS serv can have one of the following values ASYNC asynchronous transparent SYNC s...

Страница 26: ...ht away this may give the user the impression that those values will be used during the data call but there is no guarantee that will be the case The real values will only be known once a data call is...

Страница 27: ...d message storage mem1 mem1 is the selected message storage from the CPMS command location index If deleting fails final result code CMS ERROR cms_err is returned An example of an error report is CMS...

Страница 28: ...95 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 255 unspecified error 300 A...

Страница 29: ...s messages with status value stat from message storage mem1 mem1 is the selected message storage from the CPMS command to the DTE If listing fails final result code CMS ERROR cms_err is returned Valid...

Страница 30: ...at message alpha string type alphanumeric representation of TP destination address or TP originating address corresponding to the entry found in the phonebook optional field length in PDU mode this is...

Страница 31: ...ingle or alternating the terms alternating mode and 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 satel...

Страница 32: ...0 No CBM indications are routed to the DTE default Valid values for ds are 0 No SMS STATUS REPORTs are routed to the DTE default 1 SMS STATUS REPORTs are routed to the DTE using unsolicited result cod...

Страница 33: ...90103 These are the only values accepted Note that setting the mode to manual does not disable automatic registration of the A3LA RS to the network It just forces a manual registration procedure when...

Страница 34: ...phone number stored there number of address type type and text text associated with the number Response is in the form CPBR index1 number type text CR LF CPBR index2 number type text Test Command CPB...

Страница 35: ...xt field Response is in form CPBW list of supported index s nlength list of supported type s tlength A 8 48 CPIN Enter PIN Set Command CPIN pin newpin Set command sends to the A3LA RS a password which...

Страница 36: ...are read and deleted 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 t...

Страница 37: ...searching a new operator to register to 3 registration denied 4 unknown 5 registered roaming Read Command CREG Read command returns the status of result code presentation and an integer stat which sho...

Страница 38: ...e form CSCS chset Test Command CSCS Test command returns the supported character set of the A3LA RS Response is in the form CSCS list of supported chset s A 8 54 CSMS Select SMS Message Service Set Co...

Страница 39: ...xec Command GMI Query the A3LA RS RF board manufacturer This command is similar to CGMI A 8 57 GMM Model Identification Exec Command GMM Query the A3LA RS RF board model This command is similar to CGM...

Страница 40: ...ilable memories may be queried with Select Phonebook Storage test command CPBS and location range for example with Read Phonebook Entries test command CPBR Execute commands D str Originate call to pho...

Страница 41: ...command limits which connection related responses will be reported A 8 66 CLVL Volume Level Control Not Applicable to A3LA RS Exec Command CLVL level This command is used to select the volume of the...

Страница 42: ...turned by the A3LA RS instead of RING where type can be one of the following ASYNC asynchronous transparent SYNC synchronous transparent REL ASYNC asynchronous non transparent REL SYNC synchronous non...

Страница 43: ...e set using CCLK 11 05 15 22 10 00 Read Command CCLK Read command returns the current setting of the clock CCLK time A 8 71 MSVTS DTMF Generation in Voice Call Not Applicable to A3LA RS Set Command MS...

Страница 44: ...parameter settings The response is in the form MSVTR mode Test Command MSVTR List the supported parameter settings The response is in the form MSVTR supported mode s A 8 73 MSVLS Local DTMF Feedback...

Страница 45: ...ne The system time value is always expressed in GMT time Resolution and accuracy The resolution of the system time is one Iridium frame tick or 90 ms Accuracy as measured by the difference between the...

Страница 46: ...values 0 disable not used in Call Forward 1 enable not used in Call Forward 2 query status 3 registration 4 erasure number quoted string type phone number of forwarding address It contains digits only...

Страница 47: ...rently 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 A 8 78 CNUM Read MSISDN Numbers Exec Command CNUM Get the MSISD...

Страница 48: ...covery procedure and can take on the following values 27 255 in 50 ms unit Default is 30 n2 is used to represent the maximum number of re transmission attempts of a frame e g I S N U frame and can tak...

Страница 49: ...pported k2 s supported t1 s supported n2 s supported t2 s supported r1 s supported r2s supported t4 s supported mode s A 8 81 WFRNG Force IRLP Renegotiation Set Command WFRNG frng Set forced renegotia...

Страница 50: ...t Command WDAV DP type encrypt Register or deregister an RS232 DAV Data Peripheral DP DP type can take on the following values 0 Deregister peripheral 1 Register Type 1 RS232 DAV Data Peripheral encry...

Страница 51: ...match the checksum calculated at the A3LA RS 3 SBD message size is not correct The maximum mobile originated SBD message length is 1960 bytes The minimum mobile originated SBD message length is 1 byt...

Страница 52: ...buffer A 8 88 SBDD Short Burst Data Clear SBD Message Buffer s Exec Command SBDD Delete type This command is used to clear the mobile originated buffer mobile terminated buffer or both The Delete type...

Страница 53: ...sequence number that was used in the most recent mobile terminated SBD session This value will be 1 if there is nothing in the mobile terminated buffer A 8 91 SBDTC Short Burst Data Transfer MO Buffe...

Страница 54: ...LA RS default 1 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...

Страница 55: ...tion will be flushed to the DTE on return to command mode thus the DTE is always made aware of the latest state of each indicator A 8 95 CRIS Ring Indication Status Exec Command CRIS Query the ring in...

Страница 56: ...ration problems issue the CREG command to verify registration prior to entering the CSQ command to obtain signal strength Note The CSQF form of the command returns immediately reporting the last known...

Страница 57: ...urns the 19 or 20 digit Integrated Circuit Card Identification of the SIM Note This value is cached from the SIM and thus is not available until the caching has completed 5 10 seconds after startup A...

Страница 58: ...uncing 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 n 0 Presentation...

Страница 59: ...response is in the form IPR rate autoflag Test Command IPR List the supported data rates The response is in the form IPR supported rate s supported autoflag s A 8 103 SBDWT Short Burst Data Write a Te...

Страница 60: ...BDDET status error where status 0 Detach successfully performed 1 An error occurred while attempting the detach error Gateway reported values 0 Detach successfully performed 1 4 Reserved but indicate...

Страница 61: ...ny in the mobile originated buffer will be sent from the A3LA RS to the GSS If there is a message queued at the GSS it will be transferred to the A3LA RS and placed into the mobile terminated buffer C...

Страница 62: ...location value is provided If there is a message in the mobile originated buffer it will be transferred to the GSS Similarly if there are one or more messages queued at the GSS the oldest will be tra...

Страница 63: ...many segments 13 GSS reported that the session did not complete 14 Invalid segment size 15 Access is denied A3LA RS reported values 16 Modem has been locked and may not make SBD calls see CULK comman...

Страница 64: ...hexadecimal sets the most significant bit Value 0x01 sets the least significant bit Flag values can be added together to achieve a combination of settings Some fields are overridden during certain SBD...

Страница 65: ...on that does not require SBD Ring Alert location has format DDMM MMM dddmm mmm where DD Degrees latitude 00 89 MM Minutes latitude 00 59 MMM Thousandths of minutes latitude 000 999 ddd Degrees longitu...

Страница 66: ...The response is of the form SBDREG status status 0 Detached 1 Not registered 2 Registered 3 Registration denied The registration status is stored in A3LA RS non volatile memory and can therefore be q...

Страница 67: ...uto registration has failed and will be retried after a delay mode 1 only reg error Gateway reported values 0 No error 2 Session completed but the requested Location Update was not accepted 3 14 Reser...

Страница 68: ...obile terminated SBD session This value will be 1 if there is nothing in the mobile terminated buffer RA flag The RA flag indicates whether an SBD ring alert has been received and still needs to be an...

Страница 69: ...sage will be generated regardless of state A result code normally OK will be returned immediately and the ANTST ant_status message will follow later potentially much later see below Unsolicited Announ...

Страница 70: ...ergency_call telephone_number where call_state 0 Idle 1 MO Establishing 2 MT Alerting 3 MT Connecting 4 Active 5 Releasing call_type 0 Speech 1 Data emergency_call 0 Normal Call 1 Emergency Call telep...

Страница 71: ...solicited result presentation 1 enable unsolicited result presentation On a DTE DCE command n will set the result code presentation status in the A3LA RS regardless of the value of any mode parameter...

Страница 72: ...RM RGS while it already has a call in progress and the Call Waiting service has been made active for class Voice then the network will send a message to the A3LA R RM RGS Then if n has previously bee...

Страница 73: ...GSM 02 88 4 clause 1 The Call Barring password is required as passwd AI BAIC Bar All Incoming Calls refer GSM 02 88 4 clause 2 The Call Barring password is required as passwd AB All Barring services r...

Страница 74: ...rns the facility values supported by the phone The response is in the form CLCK list of supported fac s Note Only CS will appear as a supported value if there is no SIM card in the device Note CLCK is...

Страница 75: ...ne Query Command CSDT This command returns the current transceiver board sidetone generation state 1 enabled 0 disabled Test Command CSDT Test command returns a list of valid values Response is in the...

Страница 76: ...alls ECT 4 dirno Not supported Redirect an incoming or a waiting call to the specified directory number 5 Not supported CCBS Activates the Completion of Calls to Busy Subscriber Request Test Command C...

Страница 77: ...establishment in progress 2 Waiting for user to answer MT call 3 User accepted MT call completing establishment 4 Fully active 5 Call is part of fully active multiparty call 6 Call held 7 Call is par...

Страница 78: ...us where status 0 255 Success code or failure cause TD_SMS_RP_CAUSE_ 1 Unassigned Number 8 Operator Barring 10 Call Barred 21 SM Transfer Rejected 22 Memory Capacity Exceeded 27 Destination Out Of Ord...

Страница 79: ...led to avoid interference between the module s Iridium band transmitter and the GPS band receiver Note the GPS receiver and associated circuitry is optional and is not fitted to some revisions of the...

Страница 80: ...ue in the range 0 to 255 B 1 4 Referenced S Register Read Read the value of the current referenced S register The current referenced S register is that which was last acted upon by a direct reference...

Страница 81: ...reflect the speaker volume setting bits 2 and 3 reflect the speaker on off setting and bits 4 5 and 6 reflect the Xn setting Yes S23 0 255 61 Bitmap register bit 0 autobaud setting bits 1 3 DTE baud r...

Страница 82: ...d 2 Enable CARRIER XXXX 3 Enable PROTOCOL XXXX 5 Enable COMPRESSION XXXX Register Number Range Default Description Sr n Command Write Protected in SAC0201 S13 0 255 0 Bitmap register where bits 0 1 re...

Страница 83: ...eflect NPI settings for dial string S51 0 255 0 V 42bis maximum codewords P1 high byte Yes S52 0 255 128 V 42bis maximum codewords P1 low byte S54 0 255 20 V 42bis maximum string size P2 S58 0 255 0 V...

Страница 84: ...lue in 1000 ms unit S125 1 100 10 Dynamic link delay measurement delay tolerance WDLM dtl setting Value in unit S126 0 255 2 Bitmap register 0 Ignore Dn command specified reaction to DTR ON to OFF tra...

Страница 85: ...all connection established at 2400 bps 11 CONNECT 4800 Data call connection established at 4800 bps 12 CONNECT 9600 Data call connection established at 9600 bps 13 CONNECT 7200 Data call connection es...

Страница 86: ...as verbose DR V42B Data call connected with V 42bis compression enabled on both transmit and receive direction Numeric V0 Verbose V1 Description as verbose CR ASYNC Asynchronous transparent data conne...

Страница 87: ...umeric V0 Verbose V1 Description as verbose READY Ready to receive SBD binary message data from DTE as verbose AREG event reg error Auto registration event report as verbose CIEV sig value Indicator e...

Страница 88: ...RS default configuration to no flow control SBD automatic notifications enabled D 3 Power on to Sending an SBD Message The DTE will power up the A3LA RS wait for the A3LA RS to acquire the network an...

Страница 89: ...e default configuration OK CIEV 1 1 Wait for the A3LA RS to acquire the network AT SBDWB 70 READY Transfer message to A3LA RS binary transfer 0 AT SBDIX Perform SBD session SBDIX 0 23 0 1 0 0 AT SBDD0...

Страница 90: ...37 90 2 A3LA RS informs DTE that a 90 byte message was successfully received with MTMSN 237 and that two further MT messages are queued at the GSS AT SBDRB DTE retrieves the received message from the...

Страница 91: ...Call connected at DTE rate of 9600 ATS0 2 To automatically answer a call register 0 should be set to a non zero value RING Indicates arrival of call request CONNECT Call connected at DTE rate of 9600...

Страница 92: ...a command aborts call command aborts call n a Ringing Voice CLCC 004 CPAS 003 CRING VOICE Ringing Data CLCC 004 CPAS 003 CRING DATA In call Voice CLCC 000 CPAS 000 or 003 n a In call Data CLCC 000 CPA...

Страница 93: ...te projects 48 beams on the surface of earth which may be viewed as providing coverage cells on the ground similar to terrestrial systems Each beam is approximately 600 km in diameter The 66 satellite...

Страница 94: ...nd operates an Iridium gateway located in Hawaii United States Each gateway generates and controls all user information pertaining to its registered users such as user identity geo location and billin...

Страница 95: ...e LAN or an Internet service provider as shown in Figure E2 The handshaking and protocols are established between the modems independent of the landline The Iridium dial up data service functions in m...

Страница 96: ...ure B3 illustrates how Iridium Internet NIPRNet call is routed Direct Internet service can be enhanced using Windows based emulated point to point protocol PPP called the Apollo Emulator With the use...

Страница 97: ...140 octet byte maximum message size SMS service is a store and forward method of transmitting messages to and from an Iridium modem The short message from the modem is stored in a central Short Messag...

Страница 98: ...y The Iridium network can locate an ISU to within 10 km only about 78 of the time The so called error ellipse can have a large eccentricity with the major axis oriented in the azimuth dimension and th...

Страница 99: ...ance could void the user s authority to operate the equipment CE Compliance The 9523 when marked with the CE symbol complies with the European Community Council Directive for R TTE 99 5 EC provided th...

Страница 100: ...laws and regulations Failure to comply can result in the imposition of fines and penalties the loss of export privileges and termination of your contractual agreements with NAL Research The export an...

Страница 101: ...NAL Research Corporation TN2012 02 V1 0 101 APPENDIX H MECHANICAL DRAWINGS...

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