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- Page 1 A3LA-RS Quick Start Guide 451-92899-002A Version A September 16, 2022 Copyright © 2021 by NAL Research Corporation 11100 Endeavor Ct., Suite 300 Manassas, Virginia 20109 USA Phone: 703-392-1136 Email: contact@nalresearch.com...
- Page 2 ISCLAIMER AND ONDITION OF This document contains information for the Iridium A3LA-RS modem and accompanying accessories (“Product”), which are provided “as is.” Reasonable effort has been made to make the information in this document reliable and consistent with specifications, test measurements and other information.
- Page 3 A3LA-RS Quick Start Guide Version A EVISION ISTORY Revision Date Description 02/01/2012 Initial version 08/02/2021 Updated to new template 09/16/2022 Formal release EFERENCE OCUMENTS The latest revisions of the NAL documents are available from the NAL Research website at https://www.nalresearch.com/support/documentation-downloads/.
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Page 4: Table Of Contents
A3LA-RS Quick Start Guide Version A ABLE OF ONTENTS Introduction .......................... 6 Device Description ........................ 8 Multi-interface Connector ....................8 RS232 Data Interface (Standard 9-Wire Configuration) ............9 DC Power Input ........................9 Power On/Off Control ......................9 Typical Power Usage Profile ....................9 Antenna Connector ...................... - Page 5 A3LA-RS Quick Start Guide Version A CRONYM AT .......Two-letter sequence starting a string of terminal commands. The AT is intended to get the terminal’s attention prior to executing a command. dB .......decibel DC .......direct current DTE ......data terminal equipment FCC ......Federal Communications Commission GND ......ground...
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Page 6: Introduction
Figure 1: A3LA-RS Modem IMPORTANT: Do not disassemble the A3LA-RS for repair or services. The warranty is voided if the A3LA-RS is disassembled. Return it to NAL Research for any services. The email for product repairs is support@nalresearch.com. Document Number: 451-92899-002A... - Page 7 The A3LA-RS is shipped with the following items in the package: A3LA-RS modem Installation CD with manuals and SatTerm software Before using the A3LA-RS, the following additional hardware and software are required: Desktop or laptop computer 9-wire DB25-to-DB9 RS232 data cable ...
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Page 8: Device Description
A3LA-RS Quick Start Guide Version A EVICE ESCRIPTION ULTI INTERFACE ONNECTOR The multi-interface connector is a male (DB) 15-pin miniature D-Sub type (see Figure 1) that includes four interfaces—RS232, DC input power, ON/OFF control line, and TX_ACTIVE. The multi-interface connector pin assignments are summarized in Table 1. -
Page 9: Rs232 Data Interface (Standard 9-Wire Configuration)
The DC power input is through pin 1 (EXT_B+) and pins 3 & 8 (EXT_GND). Keep cables used to supply power to the A3LA-RS as short as possible to prevent significant voltage drop, which can cause the A3LA-RS to malfunction during a data call, SMS session, or SBD session. -
Page 10: Antenna Connector
A3LA-RS Quick Start Guide Version A NTENNA ONNECTOR The A3LA-RS modem uses a single SMA female 50-ohm connector to both transmit and receive (see Figure 2). SMA antenna connector Figure 2: SMA Antenna 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. -
Page 11: Sim Card Interface
A3LA-RS Quick Start Guide Version A SIM C NTERFACE The A3LA-RS modem contains an integrated subscriber identification module (SIM) reader. The modem uses and requires an Iridium SIM chip for operation, as shown in Figure 4. SIM Card SIM Reader... -
Page 12: Configuring The A3La-Rs Modem
A3LA-RS M ONFIGURING THE ODEM 1. Remove the SIM cover located at the top of the A3LA-RS modem (see Figure 5). SIM Cover Figure 5: SIM Cover Under the SIM cover is an integrated SIM chip reader. The modem uses and requires an Iridium SIM chip for operation. -
Page 13: Figure 7: Sim Chip Reader
DB-9 serial connector and two terminal leads for DC power input. A three-wire (TX, RX, and GND) serial cable can also be used if flow control is not required [1]. The A3LA-RS automatically adjusts to the DTE baud. 8. Connect an external antenna to the A3LA-RS. - Page 14 Read button. If NOT using the SatTerm software, enter the command AT+CPIN? b. If the response from the A3LA-RS is SIM PIN, then the SIM is currently locked (or activated). To remove the SIM, do the following: i.
- Page 15 To unlock the A3LA-RS surface control, do the same procedure in part 15.b above except select CS instead of SC in step 15.b.i.2. d. If the response is READY or SIM PIN2, then the SIM is not locked and the A3LA-RS is ready for use. No PIN code needs to be entered.
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Page 16: Technical Support
A3LA-RS Quick Start Guide Version A ECHNICAL UPPORT For technical support, please contact us at: Phone: 703-392-1136, x203 Fax: 703-392-6795 Email: support@nalresearch.com Technical documents are also available to download on NAL Research’s website www.nalresearch.com in the Support > Documentation & Downloads section.
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