Tzonedigital_TT11 V1.5 June9, 2016
Green LED - indicating GSM status
off
No boot/into sleep
Flashing ( 0.1 second)
The unit is being Initialized/Receive a text
message
Flashing (on for 0.1 second and off for 2.9
seconds)
TT11 is connected to the GSM network
Flashing (on for 1 second and off for 2
seconds)
TT11 is not connected to the GSM network
On for 60 seconds and off for 60 seconds
Low voltage
5. GPRS data format
TT11 GPRS data is in hex format.
The format of hex code:
Format:
Start bits(2byte) + Packet length(2byte) + Protocol number(2byte) +
Hardware type(2byte) + Firmware version(4byte) + IMEI(8byte)
+ RTC data
time(6byte)
+
LBS data length(2byte) + LAC(2byte) + CELLID(2byte) +
MCC(2byte) + MNC(2byte) + Extension bits(A)
+ State data length(2byte) +
Alarm type(1byte) + Terminal information(1byte) + GMS signal strength(1byte)
+GSM state(1byte) +Battery voltage(2byte) + Temperature(2byte) +
humidity(1byte) + Extension bits(B)
+ Extension bits(C) + packet index(2byte) +
CRC(2byte) + Stop bits(2byte)
The data of the device send to the server:
54 5A 00 2F 24 24 04 02 01 09 00 00 08 66 10 40 26 17 78 01 0E 01 01 01 18 2F 00 08 27 B6 11
09 04 60 00 00 00 09 AA 00 13 37 01 93 0A B8 39 00 0A F1 1E 0D 0A
Below is a table tells more detail information about the protocol.
Data block
Number
of bytes
Data
Content
Meaning
Start bits
2
‘T’ ‘Z’
TZone company identifier, this is the header of every
packet
Packet length
2
Variable
The bytes length from the start at protocol number to the
end at the CRC.
Protocol number
2
‘$$’
Normal data
Hardware type
2
0x04 0x02
The hardware is TT11
