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As the system continues to operate, it will either blink red (indicating errors) or green (system
running)
A failure of the system to display the power on sequence generally indicates either a problem
providing power to the unit, or a hardware failure that requires repair.
4.5
RS-232
The RS-232 connection is a standard DB9-F connection for serial communications to a PC or other device.
The RS-232 port has a default baud rate of 9,600 (No parity, 8 data bits, 1 stop bit, HW flow control) but
other baud rates are supported.
DTR must be asserted to talk to the unit via RS-232.
Please note that the unit will NOT go into low power mode if DTR is asserted.
The RS-232 port may be used for connecting to a PC for setup, maintenance, and troubleshooting.
However, the micro USB port provides higher throughput and is the recommended communication
method.
The port may also be used for collecting data from Modbus sensors.
Python scripts may use the RS232 port in order to drive displays, send data to modems, or communicate
with other devices.
4.6
USB Micro (OTG)
The USB OTG port is the primary port for connecting to a PC. The USB port is a micro-B and compatible
with a standard micro-
B to Type A male USB cable that works with most PC’s. The primary use of the
connection is to allow the PC to setup, maintain and troubleshoot the unit. The PC will typically run
LinkComm software to configure the unit.
4.7
USB Host
The USB Host connection provides a simple way to download sensor data or update the firmware in the
unit using a USB flash drive (aka USB thumb drive). Plugging in a flash drive will automatically download all
logged data since the last download and store the log on the flash drive. It will also store station setup and
status on the flash drive.
It is possible to change station setup, upgrade firmware, and execute a batch file via a flash drive. For
details, please see section
Содержание SUTRON XLINK 100
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