Tzone TZ-TT18 - Page 5

Tzonedigital_TT18 V2.1 Apr27, 2017
RCT time date
6
Variable
The time and date when packet the data.
The sequence is Year Month Day Hour Minute Second
LBS data length
2
Variable
GSM LBS’s data length excludes LBS data length part, if
the value is 0, means there is no LBS data.
LAC
2
Variable
GSM’s location area code
0x25 0x33 means LAC is 2533
CELL ID
2
Variable
GSM’s serving CELL ID
0x78 0x37 means CELL ID is 7837
MCC
2
Variable
Mobile Country Code, ignore the first digital, only 3
digital, 04 60 mean MCC is 460.
MNC
2
Variable
Mobile Network Code, 2 or 3 digital, if the first digital is
8 , means MNC is 3 digital, if the first digital is 0, mean
MNC is 2 digital, 87 56 means MNC is 756, 00 56 means
56.
Extension bits
A=0
For future extending the protocol use, currently, has
nothing, does not possess any byte
Status data length
2
Variable
The status data length excluding “Status data length”
itself, if this part is 0, means no status data.
Alarm type
1
Variable
The value of this part has four possibility,
Temperature/humidity included in all the GPRS
data.
0xAA Interval GPRS data
0x10 Low battery Alarm
0xA0 Temperature/Humidity over threshold alarm
0xA1 Temperature/Humidity sensor abnormal
alarm
Terminal
information
1
Variable
Bit 7 to bit 5 are reserved for future use.
Bit4: 1 RTC time is abnormal
0 RTCtime is normal
Bit3: 1 The temperature/Humidity sensor is
abnormal
0 The temperature/Humidity sensor is normal
Bit2: 1 The temperature/Humidity is over threshold
0 The temperature/Humidity is normal
Bit1: 1 The battery low vlotage
0 The battery is normal
Bit0: 1 The machine is charging
0 The machine is not charging
GMS signal
strength
1
Variable
CSQ value , Hex code