User's Manual

GSM/GPRS/GNSS Module Series
MC60 Hardware Design
MC60_Hardware_Design Confidential / Released 54 / 99
3.7.3. Auxiliary UART Port and GNSS UART Port
3.7.3.1. Connection in All-in-one Solution
In all-in-one solution, the Auxiliary UART Port and GNSS UART Port should be connected together, thus
allowing for communication between GSM and GNSS parts. A reference design is shown below.
Figure 26: Auxiliary and GNSS UART Port Connection in All-in-one Solution
As the GNSS part of MC60 module outputs more data than a single GNSS system, the default output
NMEA types running in 4800bps baud rate and 1Hz update rate will lose some data. The solution to avoid
losing data in 4800bps baud rate and 1Hz update rate is to decrease the output NMEA types. 115200bps
baud rate is enough to transmit GNSS NMEA in default settings and it is thus recommended.
3.7.3.2. Connection in Stand-alone Solution
In stand-alone solution, the GNSS UART Port is connected to the COM port of peripheral, and the
Auxiliary UART Port is recommended to keep open.
NOTE