Iridium 9522A Technical manual

9522A L-Band Transceiver
Product Information Guide
Revision 1.01
Iridium Satellite LLC
6701 Democracy Blvd., Suite 500
Bethesda, MD 20817 USA
www.iridium.com
Toll Free: +1.866.947.4348 [US Only]
International +1.480.752.5155
email: [email protected]

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Contents
Revision History............................................................................................................................................ 2
1.0 Product Overview ............................................................................................................................ 3
2.0 Standards Compliance .................................................................................................................... 3
2.1 FCC Compliance......................................................................................................................... 3
2.2 CE Compliance ........................................................................................................................... 3
3.0 Physical Specifications.................................................................................................................... 4
3.1 Environmental ............................................................................................................................. 4
3.2 Dimensions.................................................................................................................................. 4
3.3 Interface Connectors................................................................................................................... 6
3.3.1 Multi-Interface Connector ................................................................................................... 6
3.3.2 Antenna Connector............................................................................................................. 7
3.3.3 SIM Chip Reader................................................................................................................ 7
3.4 Mounting...................................................................................................................................... 7
3.5 Connector Sealing in Harsh Environments................................................................................. 7
4.0 Electrical Interfaces ......................................................................................................................... 8
4.1 DC Power Interface..................................................................................................................... 8
4.1.1 DC Power Interface Signal Descriptions ............................................................................ 8
4.1.2 DC Power Input Specifications........................................................................................... 8
4.2 Control/Digital Audio (DPL bus) Interface................................................................................... 8
4.2.1 Control/Digital Audio Interface Signal Descriptions............................................................ 8
4.3 RS232 Data Interface.................................................................................................................. 9
4.3.1 RS232 Data Signal Descriptions........................................................................................ 9
4.3.2 Autobaud ............................................................................................................................ 9
4.4 Analog Audio Interface................................................................................................................ 9
4.4.1 Analog Audio Interface Signal Descriptions....................................................................... 9
4.5 SIM Interface............................................................................................................................... 9
4.6 RF Interface............................................................................................................................... 10
4.6.1 RF Interface Specifications ..................................................................................... 10
4.6.2 Radio Characteristics ................................................................................................ 10
5.0 Instructions for the safe Installation and use of the 9522A LBT................................. 11
5.1 Instructions for the Integrator.............................................................................................. 11
5.2 Instructions from the integrator to the user ............................................................................... 11
6.0 Modem Commands and Configuration.......................................................................................... 11
Revision History
Revision Date Comment
V1.0 02 14 2005 First revision
V1.01 03 24 2005 Revised upper range of operating temperature specification in Section 3.1
Export Compliance Information
This product is controlled by the export laws and regulations of the United States of America. The U.S.
Government may restrict the export or re-export of this product to certain individuals and/or destinations.
For further information, contact the U.S. Department of Commerce, Bureau of Industry and Security or
visit www.bis.doc.gov.

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1.0 Product Overview
The 9522A L-Band Transceiver (LBT) is designed to be integrated into a specific application with other
hardware and software to produce a solution designed for a specific application or vertical market. Some
examples of these solutions include a maritime voice telephony terminal or a vehicle tracking solution.
The LBT functionally supports all of Iridium’s voice and data services. Applications can be built to use one
or multiple services using the voice and data interfaces. The 9522A is a functional replacement to the 9522
“Sebring” LBT. However it should be noted that there aresome differences to the voice interface.
The 9522A is regulatory approved for FCC, Canada, and CE assuming an antenna with a gain of ~3 dBi.
This allows the LBT to be integrated into a variety of subscriber products, or retrofitted into existing LBT-
based products. These products, when integrated together will require regulatory testing to be conducted
by the integrator.
The LBT is essentially provided as a ‘black box’ with all interfaces provided via a DB25 connector. The
product provides the core transceiver module and SIM card reader. All other functions and hardware such
as keypad, display, power supply, antenna etc. must be provided by the solution developer. The DB25
provides the following interfaces and connections:
Analog Audio
Control / Digital Audio
RS232
Power Input
On / Off
2.0 Standards Compliance
The 9522A is designed to comply with the standards for Radio Emissions Compliance, Electromagnetic
Compatibility, and AC Safety in the United States, European Union and Canada.
2.1 FCC Compliance
The 9522A is certified under 47 CFR Part 25 as FCC ID:Q639522A. It also complies with Part 15 of the
FCC Regulations. Operation is subject to the condition that this device does not cause harmful interference.
Any changes or modifications, including the use of a non-standard antenna, not expressly approved by the
party responsible for compliance could void the user's authority to operate the equipment.
IMPORTANT: To comply with FCC RF exposure requirements, a minimum separation of 20 cm is
required between the antenna and all persons.
2.2 CE Compliance
This product, when marked with the CE symbol, complies with the European Community Council Directive
for R&TTE, 99/5/EC, provided that the integrator/user adheres to the instructions detailed in this LBT
Interface Specification. This product is in compliance with applicable ETSI standards. Compliance with the
requirements of ETSI EN 301 489 requires the use of a shielded digital data interface cable.

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3.0 Physical Specifications
The 9522A is depicted in Figure 1 below.
Figure 1: Top View of 9522A
3.1 Environmental
The environmental specifications of the 9522A LBT are summarized in Table 1 below.
Table 1: Environmental Specifications
Parameter Value
Operating Temperature Range -20ºC to + 60ºC
Operating Humidity Range ≤75% RH
Storage Temperature Range -40ºC to + 85ºC
Storage Humidity Range ≤ 93% RH
3.2 Dimensions
The overall dimensions of the 9522A LBT and its weight are summarized in Table 2 below. Dimensioned
views of the 9522A LBT are shown in Figures 2-5 which follow.
Table 2: Mechanical Dimensions
Parameter Value
Length (including antenna connector) 216.1 mm (8.51”)
Length (excluding antenna connector) 196.4 mm (7.73”)
Width 82.6 mm (3.25”)
Depth 39.0 mm (1.54”)
Weight (approximate) 659 g
Figure 2: Side View

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Figure 3: Bottom View
Figure 4: Antenna Connector End View
Figure 5: Multi-Interface Connector End View

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3.3 Interface Connectors
The 9522A LBT incorporates three interface connectors:
Multi-Interface Connector (located on the end of the 9522A LBT)
Antenna Connector (located on the end of the 9522A LBT; opposite to the multi-interface connector)
Subscriber Identity Module (SIM) Chip Connector (located beneath a cover plate atop the 9522A
LBT)
3.3.1 Multi-Interface Connector
The multi-interface connector is a 25 pin D-subminiature type that includes four interfaces:
DC Power
Control/Digital Audio (DPL bus)
RS232 Data
Analog Audio
The pin out information for this connector is given in Table 3 below.
Table 3: 25-way connector pin-out
Contact Signal Description
1 EXT_ON_OFF External connection for On / Off key input to Daytona LBT
2 EXT_11HZ 90ms “frame sync” signal (used in testing)
3 EXT_GND Power Ground input to Daytona LBT
4 EXT_PWR Power input to Daytona LBT
5 SPKR_AUD Speaker audio output from Daytona LBT
6 DA_TX PCM digital audio output from Daytona LBT
7 DF_RI Data / Fax Ring Indication output from Daytona LBT
8 DF_RTS Data / Fax Request to Send input to Daytona LBT
9 DF_S_TX Data / Fax (UART) data input to Daytona LBT
10 DF_DCD Data / Fax Data Carrier Detect output from Daytona LBT
11 DA_FS PCM digital audio frame sync output from Daytona LBT
12 DA_CLK PCM digital 2.048MHz audio clock output from Daytona LBT
13 DF_S_RX Data / Fax data (UART) output from Daytona LBT
14 0V Signal ground, 0V signal reference and return
15 MIC_AUD Microphone audio input to Daytona LBT
16 EXT_PWR Power input to Daytona LBT
17 EXT_GND Power Ground input to Daytona LBT
18 DPL_TX Digital Peripheral Link (UART) data output from Daytona LBT
19 DF_DTR Data / Fax Data Terminal Ready input to Daytona LBT
20 DPL_RX Digital Peripheral Link (UART) data input to Daytona LBT
21 DF_DSR Data / Fax Data Set Ready output from Daytona LBT
22 DF_CTS Data / Fax Clear to Send output from Daytona LBT
23 0V Signal ground, 0V signal reference and return
24 DA_RX PCM digital audio input to Daytona LBT
25 0V Signal ground, 0V signal reference and return

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3.3.2 Antenna Connector
The 9522A LBT provides a single 50 Ω, TNC type antenna connector both transmit and receive.
3.3.3 SIM Chip Reader
An integrated SIM chip reader is provided on the 9522A LBT. This connector allows installation of the
chip form of the SIM beneath a cover plate on the 9522A LBT housing.
3.4 Mounting
The 9522A LBT incorporates (6) mounting holes on its bottom surface that can aid in its mounting. See
Figure 3 for locations of these features. It is recommended that a thread-forming screw be used to mount
the 9522A LBT via these features. Particularly, a Textron Camcar® Taptite® II Thread-Rolling Fastener of
M3.5x0.6 thread type is recommended. This fastener has a 15IP Torx Plus® pan head and is available in
lengths of 6, 8, 12, 16, and 20 mm as part number 3BE-P802-00, 3BE-P803-00, 3BE-P8185-00, 3BE-
P804-00, 3BEP8186-00, and 3BE-P8187-00 respectively. Length should be chosen to ensure that
penetration into the 9522A LBT housing does not exceed 11 mm. If a 6-32 thread type is desired, a
Textron Camcar® Taptite® II Thread-Rolling Fastener with a 15IP Torx Plus® pan head is available in
lengths of 1/4, 5/16, 3/8, 1/2, 5/8, 3/4, and 1 inch as part number 3BE-P814-00, 3BE-P8123-00, 3BE-
P815-00, 3BE-P816-00, 3BE-P8124-00, 3BE-P817-00, and 3BE-P818-00 respectively. A 10IP Torx Plus®
flat head version is also available in a single length of 1/2 inch as part number 3BE-P801-00. Another 6-32
thread type option is to insert a helical coil insert with a 6-32 internal thread into these features thus
accommodating 6-32 threaded fasteners as mounting hardware for the 9522A LBT. National Aerospace
Standard NASM122238 serves as a technical reference for the recommended helical coil insert.
3.5 Connector Sealing in Harsh Environments
If the 9522A LBT is to be used in a harsh environment with exposure to high humidity or water, the mating
of the multi-interface connector must be further sealed to protect from moisture entry. It is recommended
that a bead of RTV silicone sealant be placed on the connector mating to the 9522A LBT’s multi-interface
connector where shown in Figure 6 below. A material similar to Permatex 16B should be used.
Figure 6: Placement of Silicone RTV bead around
the connector mating to the 9522A’s multi-interface connector.

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4.0 Electrical Interfaces
The subsections to follow contain interface information for the electrical interfaces of the 9522A LBT.
4.1 DC Power Interface
4.1.1 DC Power Interface Signal Descriptions
The DC power interface is comprised of the DC power inputs and a control signal as summarized in Table
4 below. The EXT_PWR and GND inputs are used to supply DC power to the 9522A LBT. The
EXT_ON_OFF control input is pulled to a GND level to toggle the 9522A LBT on and off. Note that both
pairs of pins should be connected for EXT PWR and EXT GND.
Table 4: Control/Audio Interface Signal Descriptions
Signal Name Signal Description
EXT_PWR (pin 4 and 16) External power +4.4VDC input
EXT_GND (pin 3 and 17) External power GND input
EXT_ON_OFF (pin 1) Power on/off control input
4.1.2 DC Power Input Specifications
The DC power requirements for the 9522A LBT are summarized in Table 5 below. Note that these
requirements apply to DC power measured at the 9522A LBT multi-interface connector input.
Table 5: DC Power Input Specifications
Parameter Value
Main Input Voltage Range +4.0 VDC to +4.8 VDC
Main Input Voltage - Nominal 4.4VDC
Main Input Voltage –Ripple 40 mV peak to peak
Consumption at +4.4 VDC Value
Input Standby Power (average) 570mW
Peak Transient Current –Transmit 2.5A
Current Average –Continuous Transmit at Maximum RF Power (see note) 1.0A
Power Average –Voice/Data Call (see note) 2200mW
Note: The average power consumption depends on the view of the satellite constellation from the
antenna.
4.2 Control/Digital Audio (DPL bus) Interface
4.2.1 Control/Digital Audio Interface Signal Descriptions
The control/digital audio interface enables peripherals such as handsets and SIM card readers to be
interfaced to the 9522A LBT. The interface utilizes an Iridium Proprietary communication bus not detailed
in this fact sheet. Details can be made available after appropriate Non-Disclosure and/or License
Agreements are executed.

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4.3 RS232 Data Interface
4.3.1 RS232 Data Signal Descriptions
The RS232 data interface is comprised of eight standard RS232 data, control, and status signals plus a
ground level signal reference. This interface allows a connected Data Terminal Equipment (DTE) to utilize
the 9522A LBT’s modem functionality via AT command control. A 3-wire RS232 Data minimal interface
may also be implemented however the 9 wire interface offers better control and is the recommended
implementation.
4.3.2 Autobaud
Autobaud is enabled by default. Autobaud will occur on the following characters ‘a’, ‘A’, or CR (carriage
return). Autobaud will also occur on the escape sequence character, provided this is an odd number
character. Normally this is set to ‘+’ in register S2. See the AT Command Reference for details.
4.4 Analog Audio Interface
4.4.1 Analog Audio Interface Signal Descriptions
The analog audio interface is comprised of the analog audio input and output signals referenced to the 0V
signal ground as summarized in Table 6 below.
Table 6: Analog Audio Interface Signal Descriptions
Signal Name Signal Description
MIC_AUD (pin 15) Analog audio input to LBT
SPKR_AUD (pin 5) Analog audio output from LBT
0V (pins 14, 23 and 25) Signal ground
4.5 SIM Interface
An integrated SIM chip reader is provided on the 9522A LBT. An external SIM card reader may also be
interfaced as a peripheral to the 9522A LBT via the DPL bus (control/audio interface). A SIM card in the
external reader will take precedence over the SIM chip in the integrated connector when both are present.

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4.6 RF Interface
4.6.1 RF Interface Specifications
The RF interface requirements for the 9522A LBT are summarized in Table 7 below.
Table 7: General RF Parameters
Parameter Value
Frequency Range 1616 MHz to 1626.5 MHz
Duplexing Method TDD (Time Domain Duplex)
Oscillator Stability ± 1.5 ppm
Input/Output Impedance 50Ω
Multiplexing Method TDMA/FDMA
4.6.2 Radio Characteristics
The tables within this section contain radio characteristics of the 9522A LBT.
Table 8: In-Band Characteristics
Parameter Value
Average Power during a transmit slot (max) 7 W
Average Power during a frame (typical) 0.6 W
Receiver Sensitivity at 50W (typical) -118.5 dBm
Receiver Spurious Rejection at offsets > 1 MHz (typical) 60 dB
Table 9: Link Margin
Configuration Cable Loss Link Margin
9522A LBT with accessory antennas (Note 1) 2 dB (Note 2) 13.1 dB (Note 3)
Note 1: Other antenna options are available
Note 2: Cable losses should be minimized
Note 3: Link Margin given for free space

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5.0 Instructions for the safe Installation and use of the
9522A LBT
The 9522A LBT is intended for integration into a finished product. The integrator of the 9522A LBT is
required to connect a power supply, antenna, and user interface to the 9522A LBT. To ensure that the
9522A LBT is correctly installed the following general instructions (sub-section 5.1) are provided for the
installer.
The integrator will be required to supply the end user of the integrated product, incorporating the 9522A
LBT, with operating instructions and any other information relating to the maintenance and safety of the
equipment (sub-section 5.2).
5.1 Instructions for the Integrator
The 9522A LBT must be installed by an appropriately qualified installer and mounted securely
as described in section 3.4 of this document.
The power supply used to power the 9522A LBT must be checked to ensure it meets the
requirements of sub-section 4.1.2 of this document.
Electrical connections to the 9522A LBT multi-interface connector shall be as designated in Table
3 of sub-section 3.3.1 of this document.
The current and voltage rating of the multi-interface connector cable shall meet the requirements of
the LBT DC power input.
The electrical characteristics of the multi-interface connector cable shall not degrade the 9522A LBT
digital communications and analog audio signals.
The multi-interface connector cable will provide adequate screening from external electromagnetic
interference.
The 9522A LBT shall not be located in close proximity to sources of extreme temperature which will
cause it to be operated outside of its temperature specification.
The 9522A LBT shall not be operated without an appropriate antenna connected to its Antenna
connector via a suitable 50 Ohm coaxial cable. This antenna shall be sited at least 20cm away from
any person.
5.2 Instructions from the integrator to the user
To comply with the requirements of sub-clause 1.7.2 (Safety instructions) of the European Information
technology equipment safety standard EN60950-1:2002 the integrator must ensure that:
‘Sufficient information shall be provided to the USER concerningany condition necessary to ensure that,
when used as prescribed by the manufacturer, the equipment is unlikely to present a hazard within the
meaning of this standard. If it is necessary to take special precautions to avoid the introduction of hazards
when operating, installing, servicing, transporting or storing equipment, the necessary instructions shall be
made available.’
As part of these instructions the installer should inform the user that they should not service the 9522A LBT.
6.0 Modem Commands and Configuration
The 9522A is configured through the use of AT commands. A full listing of the supported AT commands can
be found in the AT Command Reference document.