Lantronix EMG 7500, Руководство пользователя

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10: Device Ports
EMG™ Edge Management Gateway User Guide 195
Modem Settings: Text Mode
Use Sites Enables the use of site-oriented modem parameters which can be activated by
various modem-related events (authentication, outbound network traffic for dial-
on-demand connections, etc.). Sites can be used with the following modem
states: dial-in, dial-back, dial-on-demand, dial-in & dial-on-demand, dial-back &
dial-on-demand, and CBCP server.
Initialization Script Commands sent to configure the modem may have up to 100 characters. Consult
your modem’s documentation for recommended initialization options. If you do
not specify an initialization script, the EMG unit uses a default initialization string
of
AT S7=45 SO=0 L1 V1 X4 &D2 &c1 E1 Q0
.
Note: We recommend that the modem initialization script always be preceded
with AT and include E1 V1 x4 Q0 so that the EMG may properly control the
modem. For information on AT commands, refer to the modem user guide, or do
a web search for
at command set . Serial modems may need to include &B1
in the modem initialization string to set the DTE rate to a fixed baud rate.
Modem Timeout Timeout for all modem connections. Select Yes (default) for the EMG unit to
terminate the connection if no traffic is received during the configured idle time.
Enter a value of from 1 to 9999 seconds. The default is 30 seconds.
Caller ID Logging Select to enable the EMG to log caller IDs on incoming calls. Disabled by default.
Note: For the Caller ID
AT
command, refer to the modem user guide.
Modem Command
Modem
AT
command used to initiate caller ID logging by the modem.
Note:
For the AT command, refer to the modem user guide.
Dial-Back Number Users with dial-back access can dial into the EMG gateway and enter their login
and password. Once the EMG authenticates them, the modem hangs up and
dials them back.
Select the phone number the modem dials back on -a fixed number or a number
associated with their login. If you select Fixed Number , enter the number (in the
format 2123456789).
The dial-back number is also used for CBCP client as the number for a user-
defined number. See Device Ports - Settings (on page 187) for more information.
Dial-Back Delay For dial-back and CBCP Server, the number of seconds between the dial-in and
dial-out portions of the dialing sequence.
Dial-Back Retries For dial-back and CBCP Server, the number of times the EMG unit will retry the
dial-out portion of the dialing sequence if the first attempt to dial-out fails.
Timeout Logins If you selected Text mode, you can enable logins to time out after the connection is
inactive for a specified number of minutes. The default is No . This setting is only
applicable for text mode connections. PPP mode connections stay connected until
either side drops the connection. Disabled by default.
Dial-in Host List From the drop-down list, select the desired host list. The host list is a prioritized list
of SSH, Telnet, and TCP hosts that are available for establishing outgoing modem
connections or for connect direct at the CLI. The hosts in the list are cycled
through until the EMG successfully connects to one.
To establish and configure host lists, click the
Host Lists link.