W&T 57630 Manual page 121

W&T
The following parameters must be entered:
Local Port:
Unless your network administrator has given you other
instructions, the factory default Port 49153 can be used.
ServerPort:
Here you must enter the Local Port set for the slave. Here again
you can use the factory default 49153 if your network administrator
has not specified otherwise.
i
Local Port and Slave Port do not necessarily
have to be the same as set at the factory.
Subject to errors and modifications:
Box-to-Box
121