Serial Connector - RACOM RipEX User Manual

RipEX keeps pin 6 DSR at the level of 1 by RS232 standard permanently.
4.2.5. USB
RipEX uses USB 1.1, Host A interface. USB interface is wired as standard:
Tab. 4.4: USB pin description
USB pin signal
1 +5 V
2 Data(−)
3 Data (+)
4 GND
The USB interface is designed for the connection to an – external ETH/USB adapter or a Wifi adapter.
They are optional accessories to RipEX, for more details see Section 5.3, "Connecting RipEX to a
programming PC". The adapters are used for service access to RipEX's web configuration interface.
The USB interface can also be used for an external flash disc connection, which has been specifically
designed to simplify complex maintenance tasks, so that these tasks can be performed by unqualified
personnel in the field by simple plugging-in an USB stick and waiting untill a LED flashes.
The USB connector also provides power supply (5 V/ 0.5 A). It can be used to temporarily power a
connected device, for instance a telephone. The USB connector should not be used as permanent
source of power supply.
External USB flash disc
An external USB flash disc can be used for firmware upgrade, SW keys upload, configuration backup
and restore, ssl certificate and ssh keys upload and tech-support package download. Any common
USB stick with several megabytes of free space can be used for these tasks.
Note
The flash disc has to contain the FAT32 file system (the most common one at the time of
writting). Any other file system will be simply ignored by the RipEX. When in doubt, consult
your IT expert.
Once the RipEX recognizes a flash disc inserted into the USB interface, the status LED starts blinking
slowly, alternating red and green colors. That indicates the start of the upload/download of files. The
LED flashing may change during the process, the successful completion of the recording is indicated
by fast alternating green and red flashes (about 3 times per second). Note that it may take up to 10
minutes (when an FW upgrade is performed).
Warning
NEVER unplug the USB disc before the proper (fast) flashing of the status LED starts! You
may damage your disc otherwise.
Following a successful detection of a USB flash disc, the RipEX writes the tech-support package, log
files and the configuration text file to it. Then the README.txt file, which contains all the necessary
information on the structure and names of files and directories, is written into the root directory of the
disc. Please follow the detailed instructions in that file.
© RACOM s.r.o. – RipEX Radio modem & Router
wire
red
white
green
black
1 2 3 4
Fig. 4.12: Serial connector
Product
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