NAL RESEARCH CORPORATION A3LA-RS Quick Start Manual

Satellite modem comprised of an iridium 9523 transceiver

DEVICE DESCRIPTION: The A3LA-RS is a satellite modem comprised of an Iridium® 9523 transceiver. It supports SBD, SMS,

dial-up data switch Direct internet connection (or NIPRNET connection), Direct internet connection using Apollo Emulator

(only for DoD EMSS Gateway), and RUDICS connectivity to the Iridium satellite network. The A3LA-RS does not support

voice communications. The A3LA-RM can be controlled by a DTE capable of sending standard AT commands via a serial port.

 IMPORTANT: The A3LA-RS antenna must have a full view of the sky during transmission

 DB25 Multi-Interface Connector: The multi-interface connector is a male 15-pin miniature D-sub type that

includes four interfaces – RS232, DC input power, ON/OFF control line, and TX_ACTIVE.

 Iridium TNC Antenna Connector: The A3LA-RS modem uses a single SMA female 50-ohm connector to both

transmit and receive message from the Iridium network.

SIM Reader under the Lid

A3LA-RS QUICK START GUIDE

Iridium SMA Antenna Connector

Support Phone#: 571-833-2169

Support@Nalresearch.com

451-92899-002B

2023-03-31

Table of Contents

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Page 1 451-92899-002B 2023-03-31 DEVICE DESCRIPTION: The A3LA-RS is a satellite modem comprised of an Iridium® 9523 transceiver. It supports SBD, SMS, dial-up data switch Direct internet connection (or NIPRNET connection), Direct internet connection using Apollo Emulator (only for DoD EMSS Gateway), and RUDICS connectivity to the Iridium satellite network. The A3LA-RS does not support voice communications.
Page 2  SIM Card Interface: The device uses and requires an Iridium SIM chip for operation, in support of Non-SBD features.  RS232 Data Interface: This interface allows a connected DTE to utilize the A3LA-RS’s modem functionality through standard AT and extended sets of AT commands.