Lantronix ETS Reference Manual - 5.3.3 Device Type
Other Port Characteristics
Ports
5-12
5.3.3 Device Type
The Type characteristic specifies the device types compatible with a particular port. Type can be one of the
following: ANSI, Hardcopy, or Softcopy. To set a type, use the following command:
Figure 5-19: Configuring the Device Type
The command above specifies that the port is compatible with VT100-type devices. For further explanation,
see Set/Define Port Type on page 12-54.
5.3.4 DTRwait
The DTRwait flag governs whether a port provides DTR when idle. [[[Normally DTR is always asserted.
In general, this allows modems to answer an incoming call, as many modems will not answer a call unless
DTR is asserted.]]] If you enable DTRWait, the ETS will deassert DTR until the port receives a connection
request. When such a connection begins, the ETS will assert DTR; when the connection is closed, DTR will
be de-asserted.
Figure 5-20: Enabling Dtrwait
5.3.5 Group Numbers
Each port can be given one or more authorized LAT group numbers. By default, only group zero is
authorized, which restricts a port’s access to only those nodes that offer services in group zero. The ETS is
also configured for group zero, so by default, all ports can access any services local to this ETS. To allow
port access to specific groups, enter the Set/Define Port Authorized Groups command.
Figure 5-21: Defining Port Authorized Group
For information on server-wide enabling of LAT groups, see Set/Define Server Service Groups on page
12-80.
5.3.6 Interrupts
When a port is being used for a network connection, the port will be busy; in other words, local users cannot
use the port at that time. To permit local logins when a network connection is running, the port must have
dynamic access configured and the Interrupts characteristic must be enabled.
Figure 5-22: Enabling Interrupts
Local> SET PORT 3 TYPE ANSI
Local> SET PORT 2 DTRWAIT ENABLED
Local>> DEFINE PORT 2 AUTHORIZED GROUPS 0,77,122-178
Local>> DEFINE PORT 2 ACCESS DYNAMIC
Local>> DEFINE PORT 2 INTERRUPTS ENABLED