The external synchronization unit allows to synchronize the time (the beginning of each second) across multiple devices (up to 7) with an accuracy less than a microsecond, so all the connected units can enable transmitters at the same time. This entirely eliminates mutual interference of the neighboring sectors, when one transmitting unit with its power signal interferes to the neighbor unit to receive weak signal of its customers.
The synchronization unit can be used only for "H08" hardware platform, Omx and Mmx models.
In order to connect to the synchronization unit TDMA firmware version must be installed on InfiNet Wireless R5000 devices.
You can download TDMA firmware version via https://ftp.infinet.ru/pub/Firmware/beta/TDMA/. |
In order to enable the synchronization mode:
via Web interface:
via CLI:
tsync enable |
The device coordinates are transmitted via the standard NMEA sequences in ASCII code. The false definition of control characters to enter to the boot monitor service mode can occur during synchronization signal receiving since the synchronization unit is connected to the console port of the base station on a non-standard rate. In order to avoid this, in case the device with: 1) MINT firmware:
2) TDMA firmware:
3) Just upgraded from MINT to TDMA firmware:
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In the section "Device Status" -> "Link Statistics" the information about synchronization status and the number of visible satellites is displayed.
The synchronization mode information can be obtained in the "Command Line" section via command:
tsync |
Time offset histogram is displayed below.
The limiting values of the time offset and jitter are in the bottom of the histogram.
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Additionally in order to determine the device coordinates GNSS position can be enabled:
via Web interface:
via CLI:
gps start |
Click "Open map" to view the device location.
The map is updated in real time that allows to monitor the movement of the device mounted on the mobile object.
More detailed GNSS statistic can be obtained via command
gps stat |
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