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Configuration Options
•
Accept Break:
Determines whether the port will accept breaks received from the
attached device. When enabled, breaks received at the port will be passed to any
port that this port is connected to. When disabled, breaks will be refused at this
port. (Default = On.)
Port Mode Parameters:
•
Port Name:
Allows you to assign a name to the Setup Port. (Default = undefined.)
•
Port Mode:
Selects the port mode for the Serial port. The port mode can be set to
Normal Mode, Modem Mode or Modem PPP Mode. (Default = Normal Mode)
Depending on the Port Mode selected, the VMR/NPS will display additional prompts
listed below. In the Text Interface, these parameters are accessible via a submenu,
which will only be active when the appropriate port mode is selected. In the Web
Browser Interface, fields will be "grayed out" unless the corresponding port mode is
selected.
Normal Mode:
Allows communication with a local PC and permits access to
command mode. When the Normal Mode is selected, the following mode-
specific parameter can also be defined:
DTR Output:
Determines how DTR will react when the port disconnects. DTR
can be held low, held high, or pulsed for 0.5 seconds and then held high.
(Default = Pulse.)
Modem Mode:
Permits access to command mode and simplifies connection
to an external modem. Modem Mode ports can perform all functions normally
available in Normal Mode, but Modem Mode also allows definition of the
following, additional parameters:
Note:
When communicating with the VMR/NPS via modem, these parameters
will not be changed until after you exit command mode and disconnect.
Modem Reset String:
Redefines the modem reset string. The Reset String
can be sent prior to the Initialization string. (Default =
ATZ
.
)
Modem Initialization String:
Defines a command string that can be sent to
initialize a modem to settings required by your application.
(Default =
AT&C1&D2S0=1&B1&H1&R2
)
Modem Hang-Up String:
Although the VMR/NPS will pulse the DTR line to
hang-up an attached modem, the Hang-Up string is often useful for controlling
modems that do not use the DTR line. (Default = undefined.)
Reset/No Dialtone Interval:
Determines how often the Reset String will
be sent to the modem at this port and also sets the trigger value for the No
Dialtone Alarm. For more information on the No Dialtone Alarm, please refer
to Section 8.10. (Default = 15 Minutes)
No Dialtone Alarm Enable:
When this item is "On" the No Dialtone Alarm
can be enabled as described in Section 8.10. When the No Dialtone Alarm is
enabled and properly configured, the VMR/NPS can provide notification if the
unit detects that a phone line connected to a modem installed at this port is
dead. (Default = Off.)
