GLOBALSAT TR-203A - Manual (Page 7)

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2.3.3 Geo-fence area definition format
(type,upper_left_Lon,upper_left_Lat,right_bottom_Lon,right_bott
om_Lat[,gxxx][,startTime,endTime,weekday])
type 1=get in area
2=get out of area
3=cross over the boundary
4=stay in area
5=stay out of area
upper_left_Lon,upper_left_L
at,right_bottom_Lon,right_b
ottom_Lat
Coordinate of specified area
gxxx Optional field for describing this
area belong to area group xxx.
startTime,endTime,weekday Optional field which specify the
effective time frame of this
geo-fence area. startTime and
endTime are in seconds. Weekday
is in hex-digit format which
specifies applicable day in a week,
where bit 0 represents Sunday,
bit1 represents Monday, etc.
2.4 Command Format
GS C ,IMEI,c1 ( option1 ) ,c2 ( option2 ) ,……….*checksum!
c1,c2…are code words of commands.
option1, option2… are their respective parameters. Please refer to 2.7.