9502 User Guide
3004146-0001 Rev H
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If an interference signature is detected, an attenuator is switched
into the receiver path to attempt to make the UT more resilient to
ATC interference.
The attenuator setting can be controlled from the Web UI, AT
command or remote SMS.
Watchdog
The M2M terminal includes a watchdog mechanism that can be
used to periodically verify the UT network connectivity and take
action if a problem is detected.
Configuration Parameters are shown in the M2M Page.
GNSS
The Hughes 9502 terminal supports a
Global Navigation
Satellite System
(
GNSS) feature. During start up, if the UT
detects a GNSS device connected to the GNSS serial port, it will
attempt to obtain a position fix from the GNSS device via NMEA
messages.
The serial port is a DB9 male, configured as a DTE and supports
autobaud between the valid NMEA rates 4800bps and 38.4kbps.
The GNSS device must provide a fix via the RMC or GGA NMEA
messages. Typically a straight through DB9 serial cable can be
used with the correct plug for the GNSS device.