Vector Sensor Reference Manual 124
• Communicate with the Vector Sensor on Port A. Ensure that the baud rate of Port B and the external
correction source match by issuing the appropriate $JBAUD command.
• Issue a $JDIFF,OTHER<CR><LF> command through Port A.
You may configure the Vector Sensor to accept corrections on Port A by using the same
procedure but by switching the Port A and B references.
To establish communications between the Vector Sensor and an external GPS receiver, you must:
• Connect Pin-3-receive (RX) of the RTCM input port to transmit pin (TX) of the external correction
source
• Connect Pin-5-Common Ground of the RTCM input port to the signal return or common ground of the
external correction source
Figure B-3 illustrates the interface between the Vector Sensor and an external correction source.
3 RX
RTCM
GND
TX
Port A / B
Figure B-3 External Correction Input Interface
Note - For successful communications, the baud rate of the Vector Sensor differential
port must be set to match that of the external correction source. The correction
source must support an RS-232 interface level and the baud rates between each
device must match.
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