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© Tritech International Ltd.
2.4 Communications Configurations
The V7 is a direct replacement for a V6 sonar, with the exception of customers requiring Ethernet capability. This
will require either a proprietary Tritech V7 connector or a compatible connector and cable harness. ARCNET and
Serial comms protocols are still supported..
Super Seaking V7 Sonar can be configured as Ethernet and Serial RS232/485 or as ARCNET and Serial RS232/485
communication protocols. There is no combined ARCNET and Ethernet option.
See section on software setup for guidance on configuring your network.
Ethernet & Serial (RS232/RS485)
When connecting via Ethernet, the Sonar can communicate at 100MB/s.
If the Sonar shares it’s Ethernet link with other high bandwidth devices, such as
video cameras, it is recommended that a gigabit (or faster) network interface
be used to the surface to reduce possible network congestion. As standard we
Tritech set the sonar IP address to 192.168.2.17 and subnet mask to 255.255.255.0.
ARCNET & Serial (RS232/RS485)
The
Super Seaking V7
Sonar can be set to form part of an ARCNET multidrop
network of sensors that are normally interfaced to a Surface Control Unit (SCU)
through an internal DA-15 ARCNET interface (AIF) port or through the DA-15 AIF
port on a SeaHub.
Normal communication with the sonar head is via a customised version of the
ARCNET network system and requires a good quality balanced twisted pair
cable. There is also an option to run a single head from a serial RS232/RS485
connection.
Note
The ARCNET system requires termination resistors to be fitted at each end of
the umbilical. Please refer to Appendix A, ARCNET Termination for more details
of the termination requirements.
2.5 Ground fault Monitoring
The power supply within SeaKing subsea devices contain an electrically isolated
DC-DC converter front-end. There is a small capacitive connection to the sonar
chassis which should not noticeably affect any impressed current ground fault
indicator (GFI) equipment.
