Lantronix ETS, Справочное руководство

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Port Commands Ports
5-4
Refer to Flow Control on page 5-2 for a description of the different flow control methods. Choose the
method that’s most compatible with the serial device and applications you’ll be using.
4 Configure Flow Control
Configure your serial device to use the selected method of flow control. Refer tothe device’s
documentation for instructions.
Configure flow control on the ETS using the Set/Define Port Flow Control command. Figure 5-8
displays an example.
Figure 5-8: Configuring RTS/CTS Flow Control
For more information about flow control command syntax, see Set/Define Port Flow Control on
page 12-39.
5.1.2.3 Parity, Character Size, and Stop Bits
The default character size of 8 data bits can be changed to 7 data bits. Similarly, the default stop bit count
of 1 bit can be changed to 2 bits. Parity is normally None, but can also be Even, Mark, Odd, or Space.
Figure 5-9: Configuring Parity, Character Size, and Stop Bits
5.1.2.4 Preferred and Dedicated Connections
A preferred service or host is the default service (Telnet or Rlogin) or Telnet host used for a particular port.
If you enter the Connect, Telnet, or Rlogin command without specifying a service or host, you are
connected to the preferred service or host. A dedicated service or host is the one a port will always connect
to when logged in. A port can also be configured for dedicated SLIP; no other protocol can be run on the
port. The following sections show how to configure preferred and dedicated connections.
When a port is dedicated, the local prompt cannot be accessed. Therefore, commands cannot be entered to
disable the dedicated characteristic. If you plan to dedicate all of the ETS’s ports, be sure that you have
another way to log into the ETS (for example, via Telnet), or else you will have to initialize the ETS to its
factory default settings.
5.1.2.4.1 Preferred Services and Hosts
To specify a preferred service, use the Set/Define Port Preferred command.
Figure 5-10: Specifying a Preferred Service
To automatically connect to the preferred service upon login, the Autoconnect characteristic must be
enabled for the service.
Figure 5-11: Enabling Autoconnect
Local>> DEFINE PORT 2 FLOW CONTROL CTS
Local>> DEFINE PORT 4 PARITY EVEN
Local>> DEFINE PORT 4 CHARSIZE 7 STOP 2
Local>> DEFINE PORT 2 PREFERRED SERVICE ets_modem
Local>> DEFINE PORT 2 AUTOCONNECT ENABLED