Northern Airborne Technology STX100 - Manual (Page 11)

SM67 Rev. 4.10 STX100-000 Globalstar ™ Satphone Transceiver Manual
Section 1 Description
1.1 Introduction
This manual contains information on the STX100-000 Globalstar ™ Satphone
Transceiver. All derivative products will be covered by manual supplements, which can
be obtained from NAT as required.
Information in this section consists of purpose of equipment, features and specifications.
Note: The STX100-000 is shipped from NAT in a deactivated state. The unit must be
registered with and activated by Globalstar ™ before any operation of the system
can be attempted. Please refer to the information sheet packaged with the
STX100-000 for registration details.
1.2 Purpose of Equipment
The STX100-000 is a complete, self-contained airborne Satphone Transceiver for use
on the Globalstar
™ satellite communications system. The system is voice and data
capable (single channel), and is designed for use with the PTA12 POTS Telephone
Adapter and the LMC01 Latitude Mobile Controller, both manufactured by NAT Ltd.
The LMC01 is used to provide asset management and positioning capability (e.g., flight
following). The LMC01 is a remote mounted unit, and connects to the data port on the
STX100-000. The LMC01 is optional, and is set-up at time of installation to operate
automatically. Refer to the LMC/LMC01 Users Manual for more information.
The voice connection is made with a standard two-wire connection (tip/ring). This is also
referred to as a POTS (Plain Old Telephone Service) interface and is the audio path
to/from the PTA12. This will also allow connection of a standard, 2-wire handset for
cabin purposes, if needed.
Note: Due to current limitations (30 mA) on the POTS interface, the handset should be
powered from the aircraft to ensure proper operation of the system.
The data connection is through the STX100-000's data port. The data port supports
asynchronous and packet data services. Asynchronous data services allow for the
transmission of ASCII or binary data between a computer or other device connected to
the STX100-000 and any Hayes™ compatible modem connected to the Public Switched
Telephone Network (PSTN). Packet data services allow for the connection of a device
able to support a PPP session using TCP/IP. This is the typical standard used by
computers for dial-up service.
Sep 7, 2005 Page 1-1
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