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The serial settings are used when the PMS Pass-through feature is configured to use a serial connection.
Connection Settings
These settings the define the serial port to use and how it should be configured.
Setting
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Description
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Port
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Select the COM port to use. If set to --none--, the connection is disabled.
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Baud rate
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Select the baud rate expected by the PBX. The default is 9600 baud.
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Data bits
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Select the number of data bits expected by the PBX. The default is 8 bits.
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Stop bits
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Select the number of stop bits expected by the PBX. The default is 1 bit.
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Parity
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Select the parity expected by the PBX. The default is None.
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Polling / Keep Alive
These settings define whether to override the default keep alive behavior (which depends on the PBX protocol selected).
Setting
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Description
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Override default values
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Check this box to override the default keep alive behavior.
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Enable feature
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Check this box to enable polling; uncheck it to disable polling.
If the PBX protocol in use does not support polling, this option will have no effect.
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Interval (in seconds)
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Set the number of seconds the port can be idle before a keep alive packet must be sent.
The minimum value is 10 seconds (a value of 0 is shown when the feature is disabled).
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Idle Timeout
The idle timeout settings control whether the DV2000/DV4 will shutdown and restart the server application that communicates with the PBX if the link is idle for more than a set period of time, on the assumption that the link may have fallen into a bad state and needs to be re-established.
Note: This should only be enabled if either the PBX or the DV2000/DV4 are sending keep alive (polling) packets at regular intervals and can therefore know that there is a problem with the link.
Setting
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Description
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Restart server if port is idle
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Check this box enable the idle timeout feature.
Do not enable this feature unless either the PBX or the DV2000/DV4 is sending keep alive packets.
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Interval value
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Set the number of minutes the serial link can be idle before the system will assume there is a problem and shutdown and restart the server.
The value is displayed as 0 if the feature is disabled.
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