ELLIPSE2 AHRS & INS
– Hardware Manual
ELLIPSE2HM.1.3
3.2. Serial interfaces
The Ellipse features up to 5 physical RS-232/RS-422 serial connections (PORT A, B, C, D, and E). These serial
ports have different uses as described in the next sections.
The Ellipse Serial interfaces support the standard baudrates:
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4 800 bps
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9 600 bps
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19 200 bps
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38 400 bps
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57 600 bps
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115 200 bps
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230 400 bps
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460 800 bps
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921 600 bps
Note: The Ellipse automatically limits the serial signals slew-rate to minimize EMI and reduce
communication error when the baud rate is below 230 400 bps.
3.2.1. Supported protocols
The Ellipse has been designed to be connected to a large range of aiding equipments and materials. In
addition to the native sbgECom binary protocol, other third party or standard protocols are also supported
such as NMEA, RTCM, TSS1, Ublox Binary protocol and others.
3.2.2. Ports functions Mapping
Due to the specificities of the internal GNSS embedded inside the ELLIPSE N and D versions, and also due to
the number of available pins in the different sensor configurations, there are some variations in the
different ports capabilities from one product to another.
The following tables provide more details about which functions are available on which port for each Ellipse
model.
Note: Please remind that PORT E is only available on B1 units (box) and on L1/L2 units (OEM).
3.2.2.1. Ellipse A version
PORT A
PORT E
Binary commands (sbgECom)
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Regular outputs (sbgECom, NMEA
or third party output)
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Legacy protocol output (sbgCom)
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1KHz IMU output
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