A3LA-R-MIL-MOD User Guide Version B
Document Number: 451-93156-001A
157 of 159
A
PPENDIX
K:
D
ESIGN
S
PECIFICATIONS
K.1 M
ECHANICAL
S
PECIFICATIONS
Dimensions:................................................................102 mm x 61 mm x 24 mm (4.0” x 2.43” x
0.95”)
Weight: .......................................................................198 g (7.0 ounces)
Multi-Interface Connector: ........................................25-Pin Male D-Sub
Iridium Antenna: ........................................................TNC Female Connector
SIM Chip Reader: ........................................................Located beneath a cover plate at the top of
the A3LA-R
Status Display: ............................................................LED
Cooling: ......................................................................Convection
Enclosure: ...................................................................Aluminum/EMI shielding
K.2 RF
S
PECIFICATIONS
Operating Frequency: ................................................1616 to 1626.5 MHz
Duplexing Method: ....................................................TDD
Multiplexing Method: ................................................TDMA/FDMA
Link Margin: ...............................................................12 dB average
Average Power during a Transmit Slot (Max): ...........7 W
Average Power during a Frame (Typical): ..................0.6 W
Receiver Sensitivity at 50 Ω (Typical): ........................–118 dBm
K.3 E
LECTRICAL
S
PECIFICATIONS
Main Input Voltage Range: ........................................+4.0 V to +5.5 V or +5.0 V to +32.0 V
Average Standby Current: ..........................................~80 mA @ 5.0 VDC
Average Data Call Current: ........................................~350 mA @ 5.0 VDC (peak of 2 A)
Note: The power requirements apply to DC power measured at the A3LA-R multi-interface
connector input. The average data call current may vary depending on the field-of-view
between the modem antenna and the Iridium satellite.