AVL data packet receive failure on TCP connection with FMC125

[manjima]

We followed the exact same procedures of Codec 8 protocol as documented in Teltonika page , And successfully got to make clear tcp connection with the Device.

Yet, few things are yet to know and yet to be resolved,

1. Over successful receive of IMEI number in first step, Server attempts to send an one byte code as confirmation. Now, though we are supplying that (b’\x01’ in Python), No reciprocate is coming from device’s end. What could be the reason for this?
2. It was well versed somewhere that FMC 125 runs over CODEC 14 protocol, yet it’s pretty much following the CODEC 8 methods. Clarification is required .

[Maynard]

Hi Majinma,

Good day,

@manjima

Over successful receive of IMEI number in first step, Server attempts to send an one byte code as confirmation. Now, though we are supplying that (b’\x01’ in Python), No reciprocate is coming from device’s end. What could be the reason for this?

• Hi after the device sends its IMEI your server should respond with 0x01 to accept or 0x00 to reject.
• Then after that, the device will send an AVL data packet then your server should response.

The possible reason why you didnt received the AVL packet is because of your data acquisiton settings and changing it according to your preferences.

Try to change the min period to 10 secs and the send period to 1 secs

It was well versed somewhere that FMC 125 runs over CODEC 14 protocol, yet it’s pretty much following the CODEC 8 methods. Clarification is required .

• Codec 8 or codec 8 extended is used for data sending
• codec 12/13/14 is used for communication over GPRS.

Reference: Codec - Wiki Knowledge Base | Teltonika GPS (teltonika-gps.com)

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Best Regards
Maynard C