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DX units, you can use the NG480 (configured as a DX) as an expansion unit. The NG480 will give you an
additional 80 alarms and 4 relays. You also have the option of adding the NetGuardian E16 DX, giving you 16
more alarm points and 16 more controls.
Note: You can have either 1 NG480 or 1 to 3 NGDdx units. You cannot have both at the same time.
Configure the data port parameters from the Ports screen
13.3.5.2.1Data Port Types
Each of the NetGuardian's 8 data ports can be configured with different functions:
TCP
Makes reach-through available at TCP ports (Telnet).
RTCP
Raw TCP (negates Telnet negotiation). The RTCP (Raw TCP Data Port) negates Telnet negotiation and will
allow all characters (including [FF]) to pass straight through from IP to serial or serial to IP.
HTCP
High speed TCP port (only 1 HTCP port is available). An HTCP, or High-speed TCP data port, which operates in
Telnet Raw mode, is essentially the same as a RTCP port except that it has better performance and is more robust
when transferring streaming data (like a data file). Unlike RTCP ports, the user can only assign one port as
HTCP.
PTCP
Permanent TCP (during a proxy connection, the connection will never time out).
SPS8
Serial Port Switch 8. The Serial Port Switch 8 is an external device hub that allows the connection of up to eight
serial port devices to a single NetGuardian data port. When an SPS8 port is selected, the NetGuardian will
negotiate the connection for the user. To break the SPS8 connection and return to the normal NetGuardian
interface, type
and press Enter.
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Hot Tip!
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