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====Codec 12/13 Packet Merge====
This additional option configures the device to merge RS-232 records into a single packet instead of sending many separate packets. This functionality only affects TCP Binary Buffered or TCP Ascii Buffered RS232 modes. When enabled, the device will merge saved RS-232 records together into a single data packet until it is able to send it to the server.<br />
This optimizes RS-232 data sending by not having to send each RS-232 record separately.
If the amount of saved RS-232 data exceeds the maximum 4 bytes of data in one Codec 12 packet, the device will start saving incoming RS-232 data into a new record.<br />
[[Image:packet_merge.png|225px|none]]
==Garmin protocols==
The following is a list of protocols supported and the corresponding list of features/benefits. FMU125 can fully support Fleet Management Interface (FMI) versions up to 2.1. Other or higher versions may be supported, but Teltonika is not responsible for the changes made by Garmin, which may affect the function of FMU125 and Garmin products. For more information about Garmin products and FMI versions, please refer to https://www.garmin.com/en-US/fleet-ready-navigators/. Notice that some Garmin products use different connection cables than others.
*RS-232 Garmin mode:
*RS-232 Garmin mode: