NAL A3LA-XM, Общее описание устройства

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NAL Research Corporation (TN2009-25-V1.0)
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1.0 PURPOSE
This document describes the electrical and mechanical interfaces of the A3LA-XM. Model A3LA-XM is an
Iridium satellite modem comprised of a 9522B L-band transceiver (LBT) with an eXtended input voltage
range. It is designed to transmit either AES 256-bit encrypted or unencrypted data (but not voice) via the
Iridium satellite network. The A3LA-XM has an internal micro-controller programmed to monitor the
modem‘s connectivity status to prevent hardware lock-up. Similar to a standard landline modem, the A3LA-
XM can be controlled by any DTE (data terminal equipment) capable of sending standard AT commands via
an RS232 serial or a USB 2.0 port. A DTE can be a desktop computer, a laptop computer, a PDA, or even a
micro-controller. With the exception of a smaller form-factor, model A3LA-XM is functionally compatible
with and is a ‗drop in‘ replacement for models 9522A, A3LA-D, A3LA-D-NV, A3LA-SA and A3LA-MPT. The
A3LA-XM has been certified to MIL-STD-810F standards for temperature, humidity, altitude, rain, shock,
sand, dust and salt fog. Services supported include:
1. Dial-Up Data
2. Direct Internet Connection (or NIPRNET Connection)
3. Direct 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)
7. Voice (when combined with the DPL audio handset)
IMPORTANT: User should not disassemble the A3LA-XM for repair or services. The warranty is
voided if the A3LA-XM is disassembled. It should be returned to NAL Research for any services.
2.0 SPECIFICATIONS
2.1 Mechanical Specifications
Dimensions: 162 mm x 67 mm x 27 mm (6.38‖ x 2.65‖ x 1.06‖)
Weight: 340 g (0.75 pound)
Multi-Interface Connector: 25-Pin D-Sub
Iridium Antenna: TNC Female
GPS Antenna Pass Thru: SMA Female (Available upon request)
SIM Chip Reader: Located beneath a cover plate on top of the A3LA-XM
Status Display: Three LEDs
Cooling: Convection
Enclosure: Aluminum/EMI shielding
Figure 1. Iridium Satellite Modem A3LA-XM.
SIM Reader
TNC Antenna Connector
DB25 Multi-Interface Connector