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

56 

+CSQ: <rssi> 

where <rssi> is: 

0  

Equivalent to 0 bars displayed on the signal strength indicator 

1  

Equivalent to 1 bar displayed on the signal strength indicator 

2  

Equivalent to 2 bars displayed on the signal strength indicator 

3  

Equivalent to 3 bars displayed on the signal strength indicator 

4  

Equivalent to 4 bars displayed on the signal strength indicator 

5  

Equivalent to 5 bars displayed on the signal strength indicator 

Note:

 The +CSQ form of the command waits for an updated signal strength reading to become 

available. This will usually be within two seconds of issuing the command. If the A3LA-RS is in 
the process of acquiring the system, or in a satellite handoff, a delay in response of up to 10 
seconds may be experienced. 

If the A3LA-RS has no SIM, is awaiting a SIM PIN entry, has an invalid SIM, or has otherwise 
not  proceeded  to  successful  registration,  the  delay  in  response  may  exceed  the  50  second 
timeout  limit.  Under  such  condition,  an  ERROR  response  will  be  received.  To  avoid  a  delayed 
response due to registration 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 signal 

strength. 

Test Command:

 +CSQ=? 

List the supported signal strength indications. The response is in the form: 

+CSQ: (supported <rssi>s) 

A.8.97  +CULK – Unlock 

Exec Command: 

+CULK=<unlock key> 

Unlock  the  SBD  functionality  of  the  A3LA-RS  after  it  has  been  locked  by  the  Gateway.  The 
unlock key must be obtained by contacting Iridium’s customer support. 
<unlock key>: 

0000000000000000 .. FFFFFFFFFFFFFFFF (a string of 16 hexadecimal digits) 

While the A3LA-RS 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-RS is locked. 

Command Response: 

+CULK:<status>

 

where: 

<status> indicates the lock status of the A3LA-RS following the unlock attempt: 

0  

Unlocked – A3LA-RS is not locked and is permitted to perform SBD sessions. 

1  

Locked  –  A3LA-RS  is  locked  and  unable  to  perform  SBD  sessions.  It  must  be 

unlocked by supplying the correct unlock key to the +CULK command. 

2  

Permanently  locked  –  A3LA-RS  is  locked  and  unable  to  perform  SBD  sessions.  It 
cannot be unlocked and must be returned to the supplier. 

Read Command: 

+CULK? 

Summary of Contents for A3LA-RS

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

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