Vaisala vNet PoE Network Interface - Manual (Page 20)

14 VAISALA
the same TCP port as the serial port (managed by serial port
redirector software).
Loopback Test Mode
Enable the Loopback Test Mode option when you want to
perform diagnostic tests to solve vNet communication problems.
When the Loopback Test Mode is enabled, the vNet enters a
diagnostic mode - data is received from the PC and transmitted
back to the PC, but not to the Logger. In diagnostic mode, you can
determine if a communication problem is a Logger issue, a vNet
Device issue, or an issue with the device driver on the PC. A
change to the Loopback Test Mode setting only takes effect when
the port is closed, then reopened.
Note:
The Loopback Test Mode checkbox clears automati-
cally when the vNet Device restarts, or if more than
1 hour has elapsed since it was enabled (checked).
RealPort
The serial port on the vNet Device is accessed using the Digi
RealPort protocol. If a RealPort driver is installed on a PC, it can
be configured to access the serial port using the RealPort TCP
port number. The factory default setting is 771.
It is important to note:
• Only one RealPort client can connect to the vNet Device at a
time. Install the RealPort driver using a Vaisala vNet Device