Prerequisites
This procedure assumes that:
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The vessel is berthed or at sea. |
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You have an RS2-232 interface port on your Processor Unit that allows you to use the CTS/RTS connections. |
For "slave" operation, a remote system (for example K-Sync or Simrad TU40) must be available to provide trigger pulses. For "master" operation, a remote hydroacoustic system (sonar, echo sounder) is connected. This remote system must be set up in "slave" mode.
You must be equipped with a standard set of tools. This tool set must comprise the normal tools for electronic and electromechanical tasks. This includes different screwdriver types, pliers, spanners, a cable stripper, a soldering iron, etc. Each tool must be provided in various sizes. We recommend that all tools are demagnetized to protect your equipment.
Context
Whenever more than one hydroacoustic system is installed on a vessel, interference may occur. To avoid interference, you have these options:
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The systems are all connected to a common synchronization system. |
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One of the acoustic systems is set up as "master", and controls the transmissions on the other systems. |
The CS90 offers functionality for remote transmit synchronization. It can be set up to operate in either Master or Slave mode.
NoteWhen you work in the Installation dialog box, you must always select Apply to save the changes made on a page. You must do this before you continue working on a different page.
Procedure
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Connect the synchronization cable from the remote system to an available communication port on your Processor Unit.
This is described in the Cable layout and interconnections chapter. Observe the applicable requirements related to cabling. Make sure that the total length of the serial line cable does not exceed approximately 50 meters. If a longer cable is required, you may need to use buffer amplifiers. If the Processor Unit is not fitted with a suitable serial line connector, use a USB-to-serial converter. Several types are commercially available.
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Local connection on the Processor Unit |
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Connection on remote device |
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Turn on the CS90, and set it to normal use. |
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On the Setup menu, select Installation.
Observe that the Installation dialog box opens. This dialog box contains a number of pages selected from the menu on the left side.
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On the left side of the Installation dialog box, select Synchronization. |
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Select Synchronization Mode.
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Stand-alone Synchronization is turned off.This synchronization mode is used if the CS90 is working by itself and with no synchronization required. This is the default setting. The CS90 operates using its internal ping interval parameters, independent of any trigger signals arriving at the synchronization
port.
The Synchronization Delay setting is not applicable when synchronization is switched off.
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Master Master mode is used if the CS90 is going to act as the controlling unit in a synchronized system. The peripheral hydroacoustic system(s) are only permitted to transmit when enabled by the CS90. When Master mode is selected, the CS90 will run using its internal ping interval parameters and send trigger signals to the peripheral system(s).
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Slave Slave mode is used if the CS90 is going to transmit only when permitted by a peripheral system. When Slave mode is selected, the CS90 does not transmit ("ping") unless an external trigger appears on the chosen synchronization port. The peripheral system may be any other hydroacoustic product (for example an echo sounder or sonar), or even a dedicated synchronization
system.
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Select Synchronization Delay.
This delay parameter is used differently depending on the chosen synchronization mode.
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Stand-alone The Synchronization Delay setting is not applicable when synchronization is switched off.
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Master In Master mode, the CS90 waits for the delay time after the external trigger signal has been sent to the slaves before transmitting the ping. This is often referred to as a pre-trigger.
NoteThis delay will only work when the synchronization is set up using a serial port.
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Slave In Slave mode, the CS90 waits for the delay time after the external trigger signal has arrived before transmitting the ping. This is often referred to as a post-trigger.
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From the list of ports available, select Synchronization Port.
This is the interface port currently used to transmit or receive synchronization signals. It must be an RS-232 serial port. Since the synchronization function only uses the Request To Send (RTS) and Clear To Send (CTS) signals on a serial port, you can use a port that is already used for other purposes. For the same reason, you do not need to define any baud rate.
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At the bottom of the page, select Apply to save your settings. |
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Continue your work in the Installation dialog box, or select OK to close it. |