Description
Each Aux button on the Operation menu allows you to remotely enable or disable the relevant auxiliary interface connector on the Communication Hub inside the Trawl Unit. These auxiliary connectors are used to establish communication with additional equipment that may be in use, such as the DFS75
Trawl Sonar.
The interface between the DFS75 Sonar Head and the Communication Hub is made using a proprietary format. No parameter adjustments are required.
NoteThe information provided by any instrument connected to the auxiliary connectors have no effect on the live video feed.
Details
Button Label
Type any name into this text field to reflect the name or type of equipment connected to the auxiliary input.
Protocol
The Protocol parameter specifies the telemetry interface used for the equipment, such as RS232 for serial communication.
Flow Control
This parameter is also known as “handshaking”, and it is used to ensure safe data delivery between sender and receiver. You have three options.
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Hardware: This setting uses the “Request To Send (RTS)” and “Clear to Send (CTS)” control signals on the serial communication, and
thus requires that these pins on the RS232 serial cable are connected. |
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Software: This setting requires that two databits, XON and XOFF, are used to indicate that data can be sent. |
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None: The data flow functionality is not used. This is the most common setting. |
NoteData flow defined for NMEA communication is None.
Baud Rate
Use this setting to specify the baud rate ("speed") for the serial communication.
The standard baud rate defined for NMEA serial line communication is 4800 baud.
Parity
Use this function to specify the parity for serial communication.
If required, a parity bit is used in a simple error detection algorithm for a serial port. The standard parity defined for NMEA serial line communication is "None".
Data Bits
Use this function to specify the number of data bits for serial communication.
The standard number of data bits defined for NMEA serial line communication is 8 (eight).
Stop Bits
This parameter is used to indicate the end of the transmission. It is usually set to 1.