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80-J4866-2 Rev. G
MAY CONTAIN U.S. AND INTERNATIONAL EXPORT CONTROLLED INFORMATION
2-3
Component Overview
Satellite Data Modem (SDM)
Satellite Data Modem (SDM)
The SDM transmits bi-directionally via an antenna to a geostationary satellite. The SDM is
lightweight and rugged in design with strengthened antenna housing that offers protection
against weather and external elements.
• Height: 6.8 inches
• Diameter: 12 inches
• Weight: 7.0 pounds
• Operating temperature range: -40C to +70 C (-40F to +158F)
• Designed as a VSAT (very small aperture terminal), the SDM incorporates a global
positioning system (GPS) antenna (receive only) to collect accurate positioning data.
• Connects with one Ku-band satellite for two-way data transmission. A secondary
frequency exists as a backup satellite.
• Robust sealing mechanism for use in all outdoor environments.
• Rugged, lightweight housing with the same bolt pattern as the OmniTRACS antenna
communication unit (ACU) for ease of installation.
• Gyroscopic-based steering algorithm for quick satellite signal reacquisition in the event of
a momentary loss of signal.
• Maintains a two-way transmission link between the Network Operations Center (NOC),
located in Las Vegas, NV, and the mobile application server (MAS) located on the vehicle.
Satellite Data Modem (SDM) Cable
• Connects the SDM to the MAS.
• Standard length is 20 feet.
Terrestrial Data Modem (TDM) and Antenna
A terrestrial data modem that provides CDMA for data transmission and GPS positioning.
• Height: 1.05 inches
• Width: 2.6 inches
• Length: 3.05 inches
• Antenna cable length: 20 feet
• Modem operating temperature range: -20C to +60 C
(-4F to +140F)
• Antenna operating temperature range: -40C to +85 C
(-40F to +185F)
• Lightweight housing for ease of installation
• Rugged design
Содержание MCP100
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Страница 224: ...Standard RMA Procedure C 2 MAY CONTAIN U S AND INTERNATIONAL EXPORT CONTROLLED INFORMATION 80 J4866 2 Rev G ...
Страница 250: ...Documentation Format Feedback Form G 4 MAY CONTAIN U S AND INTERNATIONAL EXPORT CONTROLLED INFORMATION 80 J4866 2 Rev G ...