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13.2.1
Antenna Placement
A station with a cell modem must be installed in places with usable cell phone coverage. The antenna
aiming feature can help determine the quality of signal at installation time.
13.2.2
Two-Way Communication
When the cell modem is online, you may use LinkComm to download the log, change the setup, check the
status, upgrade the firmware, and do almost any other operation that can be done over USB.
13.2.3
Scheduled Transmissions
The station may be set up with a time and interval dictating how often to deliver data. At designated
times, the station will power up the modem, establish a connection to the internet, get in touch with the
server and deliver the data. To use scheduled transmissions, the station needs to be set up with the
internet address of a primary server and, optionally, a backup server so that it knows where to deliver the
data. The backup server is contacted only if the primary server cannot be reached.
If internet service is not an option, the station may be setup to transmit data via SMS (text messages).
Data can be delivered to up to three cell phone numbers for each telemetry setup.
13.2.4
Listening
An station can be set up to always be listening, which means that it will act as a server, accepting TCP/IP
incoming connections. Sutron's AutoPoll PC software can periodically reach out to a listening station and
download sensor data from the station. In the listening mode, the station will keep the modem on at all
times, resulting in higher power consumption.
for more on listening and accepting incoming connections.
The transmission status (use LinkComm's Telemetry tab or issue STATUS TX command) indicates the IP
address assigned to the station by the service provider. The
Listen Port
setting determines which port
station keeps open.
13.2.5
SMS Notifications
If
Cell Notifications Enable
is enabled by the customer, the station reports certain events via SMS to a list
of user-entered phone numbers (
SMS Notify Phone A
and
SMS Notify Phone B)
. The purpose of this feature
is to notify the customer that a major event has transpired at the station.
SMS notifications are meant to be sent to a customer's cell phone. They are meant to
be immediately read by a person (rather than a computer, like Hydromet Cloud). SMS
notifications are the way for a customer to receive notices about station issues on his
cell phone.
The following events may cause notifications:
•
Alarms: Details such as which measurement went into alarm and the measurement reading
Summary of Contents for SUTRON XLINK 100
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