Campbell Scientific NL200/NL201 Network Link Interface - Manual (Page 54)

Appendix C. NL200/201 Settings
PakBus Address
Specifies the address that the route will reach.
Response Time
Specifies the amount of time (in milliseconds) that will be allowed for the
route.
Central Routers
This setting specifies a list of up to eight PakBus® addresses for routers that
are able to work as Central Routers. By specifying a non-empty list for this
setting, the device will be configured as a Branch Router meaning that it will
not be required to keep track of neighbors of any routers except those in its
own branch. Configured in this fashion, the device will ignore any neighbor
lists received from addresses in the central routers setting and will forward any
messages that it receives to the nearest default router if it does not have the
destination address for those messages in its routing table.
C.5 TLS Proxy Server Tab
TLS Proxy Server
Enable/Disable the TLS Proxy Server. When doing TLS proxy communications,
the device’s TLS server maintains a secure TLS connection with a remote TLS
client and forwards information onto a datalogger using a standard TCP
connection. TCP ports and physical connections are configured below.
If the TLS Proxy Server is enabled and a datalogger is connected
to the CS I/O port, the datalogger will load its TCP stack in case
it is required to do TCP communications. Running the TCP stack
causes the datalogger to use more memory, leaving less for final
storage, etc. So if TCP/TLS server capability is not required, the
TLS Proxy Server should be left disabled.
TLS Proxy Server Port Number
When doing TLS Proxy communications, the NL200/201 TLS server maintains
a secure connection with a remote client. If the TLS Proxy Forward Physical
Port is specified to be the CS I/O port, the NL200/201 will then open a TCP
connection with the datalogger over the CS I/O port and do unencrypted data
transfer with the datalogger. If the TLS Proxy Forward Physical Port is
specified to be the Ethernet port, the NL200/201 will open the TCP connection
over Ethernet on the TLS Proxy Forward IP Address.
In order to communicate with the NL200/201 TLS server, the client application
must open a socket to that server. The socket of the NL200/201 TLS server is
uniquely identified by the IP address and a port number. This entry is where
the port number of the NL200/201 TLS server is set.
The TLS client needs to be set to communicate on this port number. If secure
communications come in on the Secure Proxy Server Port Number, the
NL200/201 will attempt to open a TCP connection to the datalogger on the
NOTE
C-10