Sutron Corporation X-Link Operations & Maintenance Manual, Rev 1.63 5/24/2016 pg. 95
7.2.1.6.
Max Tx Time
The
Max Tx Time
setting
dictates how long X-Link will continue to attempt to
make a transmission. The default value is 10 minutes. The goal of this setting is
to reduce power consumption when there is a transmission problem, such as no
network for cellular stations or no satellite view for Iridium stations.
This setting was introduced in version 1.57. Prior to that, X-Link would retry
from either 50% or 80% of the
Tx Interval,
depending on the X-Link model.
7.2.2.
Cell Phone Settings
The following settings are used to set up GPRSLink, HSPALink, and CDMALink.
7.2.2.1.
Tx Mode
If
Tx Mode
is set to
Internet,
X-Link will use the modem to get an internet
connection. Once the connection is established, X-Link will connect to the
Main
Server
in order to deliver data. Failing that, it will try the
Backup Server.
If
Tx Mode
is set to
SMS
, X-Link will send transmission data via SMS (messages)
to up to three telephone numbers, as specified by
SMS Tx Phone
.
If
Tx Mode
is set to
Internet Fallback SMS,
and X-Link will first try to connect to
the
Main Server.
If that fails, it will try the
Backup Server
. If it cannot establish an
internet connection or if it cannot reach both servers, X-Link will deliver the
sensor data via SMS (text messages). The SMS will be sent to up to three
telephone numbers, as specified by
SMS Tx Phone
.
7.2.2.2.
Main Server
When it is time to make a scheduled transmission, if
Tx Mode
is set to
Internet
or
Internet Fallback SMS,
X-Link will connect to the destination specified by
Main
Server.
The server may be expressed as a name (such as www.sutronwin.com) or
an IP address (such as 10.0.0.1).
See the section called TCP/IP Session for details on the connection. (page 153
)
7.2.2.3.
Backup Server
If X-Link is unable to connect to the
Main Server
, but it does have an internet
connection, it will try to deliver data to the
Backup Server
.
7.2.2.4.
Server Port
What TCP/IP port to connect to on the
Main and Backup Servers.
7.2.2.5.
Server Password
If the
Main and Backup Servers
are protected by a password (sometimes called a
shared secret), it must be entered in this field. If it is not, X-Link will not be able
to deliver sensor data.
