US Robotics USR4204 Guide de l'utilisateur télécharger pdf (Page 50)

USR4204 User Guide

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Adding More Ports

If more serial or power ports are needed, purchase an additional USR4204 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 Sequence (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 Sequence will close

the port, exit from the slave USR4204, and return to the master USR4204 Main

Menu. If you wish to return to the slave USR4204 menu, either set the Escape

character of the slave USR4204 different than the Escape character of the

master USR4204, or set the number of Escape Sequence characters in the

master USR4204 higher than the number of Escape Sequence characters in the

slave USR4204.

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.

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US Robotics USR4204 Guide de l'utilisateur Page 50