Moxa Nport 6650 8 ports NPORT 6650-8 User Manual

Industrial Networking Solutions

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NPort® 6600 Series

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The NPort® 6600 series of secure device servers is the right choice 
for applications that use large numbers of serial devices packed into 
a small space. If you’re worried about security, you can rest assured 
with the NPort® 6600, since it supports DES, 3DES, and AES, the 

three most common standards for data encryption. Serial devices of 
any type can be connected to the NPort® 6600, and each serial port 
on the NPort® can be configured independently for RS-232, RS-422, 
or RS-485 transmission.

The NPort® 6600 has a built-in LCD panel for configuration and 
selecting operation modes. The panel displays the server name, serial 
number, and IP address, and any of the device server’s configuration 
parameters, such as IP address, netmask, and gateway address, can 
be updated easily and quickly.

The NPort® 6600 provides adjustable termination, pull high, and 
pull low resistors for RS-485 communication. In some critical 
environments, termination resistors may be needed to prevent the 
reflection of serial signals, and the pull high and pull low resistors may 
need adjusting to maintain the integrity of the electrical signal. Since 

no set of resistor values works for every environment, the NPort® 
6600 allows manual adjustment of the resistor values for each serial 
port using built-in DIP switches.

NPort® 6450: 4-port secure device server, RS-232/422/485 to Ethernet

The certifi cation logos shown here apply to some or all of the products in this 

section. Please see the Specifi cations section or Moxa’s website for details.

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