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Network protocols, Network watchdog, Paired mode – B&B Electronics VESR9xx - Fiber Models - Manual User Manual

Page 37: Password, Serial interface modes

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Serial Server Properties

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The Model number of the currently selected serial server is displayed on the Login
page of Vlinx Manager.

NETWORK PROTOCOLS

Network Protocols available for use on VESR9xx serial servers include TCP, UDP,
VCOM and Paired Mode .

NETWORK WATCHDOG

Network Watchdog controls the duration of network inactivity when a network
connection is determined idle and causes the connection to be forced closed. The
range is 1 through 65535 milliseconds.

PAIRED MODE

Paired Mode enables two serial servers to operate across the network like a "wire
replacement" between two serial devices. (Paired Mode is also called

SERIAL

TUNNELING

.) Serial devices connected to serial servers on each end of the link can

communicate as it they were connected by a serial cable.

For Paired Mode to work one serial server must be configured as a TCP server and
the other as a TCP client.

The serial server configured as the TCP client initiates connections. You must set up
the IP address and port number of the server that you want the client (serial server)
to communicate with. You also select whether you want the serial server to connect
at power up or only when it receives data from the device connected to its serial
port.

The serial server configured as a TCP server waits for connections to be initiated by
another network device. You must set up the TCP port number on which it will listen
for connections and set the maximum (up to four) number of simultaneous
connections it will accept. You can filter the connections it will accept based on
specific IP addresses or ranges of IP addresses that you specify.

PASSWORD

When you first receive the VESR9xx serial server from the factory the Password is
blank so that you can initially access the serial server without entering a value into
this field. To ensure security you should create and save a password the first time
you configure the serial server. After a password has been set up it must be entered
each time you login to Vlinx Manager. The password is used to access the
configuration pages from the Vlinx Manager Login page and can be changed from the
General page.

SERIAL INTERFACE MODES