Campbell NL241, Инструкция по эксплуатации

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NL241 Wireless Network Link Interface
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If the status of the TLS stack is Initialized , the NL241 will
automatically negotiate a secure TLS connection with DevConfig
as long as the Use IP Connection option is selected.
Encrypted communication is required to change the
TLS Private
Key and/or TLS Certificate via TCP. The private key and
certificate cannot be initialized via TCP, since the connection is
not encrypted. They must be initialized through a direct USB
connection to the NL241.
When the NL241 is in bridge mode, it cannot be configured via a
secure network connection, because in bridge mode the TLS stack
is not initialized. It can be configured via USB, RS-232, or an
unsecured network connection.
9. Applications
9.1 Working Around Firewalls
The NL241 can be used to provide a connection between LoggerNet and a
datalogger when both are behind firewalls as shown in FIGURE 9-1 . The
NL241 must be on a public IP address and will act as a common meeting place
for all PakBus® communications.
FIGURE 9-1. Working around firewalls
9.1.1 Configuring the NL241
Connect to the NL241 in DevConfig (see Section 7 , Configuring the NL241
(p. 17)
).
• On the NL241 tab:
o Set Bridge Mode to disable .
o Set DHCP Enabled to disable .
NOTES