12 Channel Dual Control Integrity Monitor - Leica MX400 Operating Instructions Manual

Operator's Manual
as a slave unit) and one 12 channel with built-in beacon (operating
as a master unit) with one GPS and Loop (H-Field) combined
Discus style antenna. It is capable of receiving DGPS corrections in
the RTCM SC-104 version 2 format via one of the four input data
ports, or via its internal marine beacon DGPS receiver. This
configuration allows data to be shared between two remotely
separated stations (i.e. navigator's station and helmsman's station),
with independent access to various information fields. The 6
channel GPS gets its positioning information from the 12 channel
with the built-in beacon, but can be connected to the antenna
independently and calculate its own position as a back-up GPS
receiver.

12 Channel Dual Control Integrity Monitor

This is an enhanced to the 12 Channel Dual Control configuration.
It is a dual control DGPS system where two DGPS receivers are
supplied, one 12 channel with built-in beacon (operating as a slave
unit) and one 12 channel with built-in beacon (operating as a master
unit) with two GPS and Loop (H-Field) combined Discus style
antennas. It is capable of receiving DGPS corrections in the RTCM
SC-104 version 2 format via one of the four input data ports, or via
its internal marine beacon DGPS receiver. This configuration
allows data to be shared between two remotely separated stations
(i.e. navigator's station and helmsman's station), with independent
access to various information fields. The purpose of this configura-
tion is for each receiver to calculate its own position, then to check
the operational status of the other GPS receiver. The GPS receiver
with the best overall operational status then provides the system
position. This provides a fully redundant system, with self-recovery
capabilities. The Integrity Monitor function can be set to Automatic
switchover, forced to the Master unit, or forced to the Slave unit for
position and navigation functions.
The Installation & Service Manual has more details on the parts
supplied with each configuration, and their associated part numbers.
Beyond the physical differences between these models, the operat-
ing software is exactly the same, except where the hardware
differences mentioned above come into play. Expect to find these
6
Functional Description
Version 3.3