Tzone TZ-TT18 - Device Mode; Indicator Status

Tzonedigital_TT18 V2.1 Apr27, 2017
Off
The device is off
5
A2.Red LED - Power status
Power status
Instructions
Red on
charging
Red off
No charge or full charge
6. GPRS data format
TT18 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 03 01 07 00 00 08 66 10 40 27 00 34 28 09 01 01 05 03 0D 00 08 25 33 78
37 04 60 00 01 00 09 AA 00 17 37 01 95 09 DA 45 00 0A 57 0A 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 0x03
The hardware is TT18
Firmware version
4
Variable
0xFF 0xFF0xFF0xFF = 255.255.255.255
IMEI
8
Variable
BCD format, i.e. 0x08 0x66 0x10 0x40 0x27 0x00 0x34
0x28 = 866104027003428