Communicating with the Sounder S500

The Cerulean Sounder S500 features 3 hardware connection options.

• Ethernet (100Mb/sec)

• USB (12Mb/sec)

• 3.3V Serial (115kbaud).

After each power up, all interfaces are polled. The first one to send a valid packet is selected as the host, and the remaining interfaces are disabled.

API Compatibility: S500 communication uses a binary packet format compatible with the Blue Robotics Ping-Protocol.

API Documentation: Please see Appendix F for the definitions of the officially supported packet formats. These packet types are recommended for new applications targeting the S500 sounder.

Network connection: Communication happens via UDP or TCP on port 51200. The default IP address for the S500 is The IP address can be configured using SonarView device discovery.

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