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Adding More Ports
If more serial or power ports are needed, purchase an additional USR4204 (slave) and
connect it to the master USR4204.
Attaching a Slave USR4204
Use a straight Ethernet cable (see appendix A) to connect any available USR4204 serial port
to the terminal port of the slave USR4204. The serial port parameters must be 9600bps,
8N1.
Addressing the Slave USR4204
To access the menus of the slave USR4204, select the serial port that connects it to the
master USR4204 from the Main Menu. Enter any command in the slave USR4204 Main
Menu, including the View Menu command (hit ENTER). To return to the master USR4204
Main Menu, type the USR4204 escape code (default "---").
NOTE: It is recommended to rename each USR4204 to a unique name for easier
identification.
If the slave USR4204 has a serial port selected, the escape code will close the
port, exit from the slave USR4204, and return to the master USR4204 Main
Menu.
Security Considerations
If the master USR4204 has security enabled, the administrator should choose whether
security is disabled or enabled in the slave USR4204.
If the administrator chooses to allow users access to all menus and ports in the slave
USR4204, security must be disabled in the slave USR4204. Users that log in to the master
USR4204 and have permission to access the serial port connected to the slave USR4204 will
then have access to all menus and ports in the slave USR4204.
If the administrator chooses to restrict users from accessing configuration menus and
certain ports in the slave USR4204, the slave USR4204's security must be enabled. The
administrator must create additional user accounts in the slave USR4204, and set each of
those user's permissions to access ports. Users that log-in to the master USR4204 and have
permission to the serial port connected to the slave USR4204 will have to enter a valid
username and password into the slave USR4204 to access its ports.
USR4204 User Guide
Page 33 of 52
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