Lantronix EMG 7500, Руководство пользователя

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10: Device Ports
EMG™ Edge Management Gateway User Guide 213
Mode The format in which the data flows back and forth.

With Text selected, the EMG unit assumes that the modem will be used for
remotely logging into the command line. Text mode is only for dialing in. This
is the default.

PPP establishes an IP-based link over the modem. PPP connections can be
used in dial-out mode (e.g., the EMG unit connects to an external network)
or dial-in mode (e.g., the external computer connects to the network that the
EMG unit is part of), dial-back (dial-in followed by dial-out), CBCP server and
CBCP client.
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.
For more information see
Sites (on page 224) .
Group Access If undefined, any group can access the modem (text login only). If one or more
groups are specified (groups are delimited by the characters ',' (comma) or ';'
(semicolon)), then any user who logs into the modem must be a member of one
of the specified groups, otherwise access will be denied. Users authenticated
via RADIUS may have a group (or groups) provided by the RADIUS server via
the Filter-Id attribute that overrides the group defined for a user on the EMG
unit. A group provided by a remote server must be either a single group or
multiple groups delimited by the characters ',' (comma), ';' (semicolon), or '='
(equals) - for example "group=group1,group2;" or "group1,group2,group3".
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 uses a 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 pre-
pended with
AT
and include
E1 V1 x4 Q0
so that the EMG unit may properly
control the modem.
Modem Timeout Timeout for modem connections. Set Yes (default) for the EMG to terminate the
connection if no traffic is received during the configured idle time. Enter a value
of 1 to 9999 seconds.
Caller ID Logging Select to enable the EMG unit to log caller IDs on incoming calls. Disabled by
default.
Modem Command Modem AT command used to initiate caller ID logging by the modem.
Note:
For the
AT
command, use +VCID=1 to enable Caller ID with formatted
presentation, and use
+VCID=2
to enable Caller ID with unformatted
presentation. This is subject to subscribing to a Caller ID service for the modem
line.
Check Dial Tone If enabled, the EMG will periodically check the modem for a dial tone while
waiting for a dial in (e.g., if the Modem State is set to Dial-in, or if the Modem
State is set to Dial-back and the EMG unit is in the Dial-in portion of the
sequence). The EMG unit can issue a trap or an event can be setup to notify
the user if no dial tone is detected. Enabled by default (every 15 minutes).