Proxima ASA 7910, 7911 manual

and loses communication with its destination unit. You may set the unit to either reestablish the connection and continue trans- missions or to halt communications to provide an alert that the connection has been lost.

If the Serial Adapter loses communication while set to Continue, the unit will try to reestablish communication. If the unit loses communication when set to Halt, the Status LED on the top of the unit will blink once in a repeating pattern until the unit is reset.

The Operating Mode parameter allows you to set the Serial Adapter to either Pass-through or Packetized mode. See Chapter 4 for a detailed discussion of these operating modes.

Some applications use a BREAK signal, sent for a specified length of time, to control the flow of data between two RS-232 devices. When a pair of Serial Adapters receive a BREAK command from an attached serial device, the units cannot deter- mine for what length of time the BREAK signal should be sent to the other serial device. The BREAK Signal Duration param- eter allows you to configure the duration of the BREAK signals the receiving Serial Adapter will transmit to the second RS-232 device when a BREAK command is sent by the first RS-232 device. Note that most applications do not use a BREAK signal to communicate, but refer to your application’s documentation to determine if it uses a BREAK signal.

The BREAK signal may be between 50 ms and 10 seconds. This value is defined in intervals of 50 ms. Within the configu- ration menu, a value of 1 corresponds to 50 ms and a value of 200 corresponds to 10,000 ms or 10 seconds. By default, the BREAK signal duration is set to a value of 2, which corresponds to 100 ms.

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