GLOBALSAT TR-203A - Manual (Page 11)

10
F=Sleeping mode alarm report
G=Geo-fence alarm report
H=Autonomous Geo-fence alarm report
I=SOS alarm report
J=Low battery alarm report
K=Speed alarm report
L=Timer 0 report
M=Timer 1 report
N=Timer 2 report
O=Timer 3 report
P=L4 report
S IMEI
T Device ID
U Checksum The checksum value is derived by the
same method of NMEA standard. It is
calculated by ‘exclusive OR’ the 8 data
bits of each character before “*” in the
sentence, but excluding “*”. The
hexadecimal value of the most significant
and least significant 4 bits of the result
are converted to two ASCII characters
(0-9, A-F) for transmission. The most
significant character is transmitted first.
p Temperature degree Celsius
#
*
?
! ! Message delimiter