7.1
Installation Guide
The following guide provides instructions to set up a dual-head system.
1. Bracket and Mount: Decide whether to use a dual-head bracket (sold separately) or two
single head brackets mounted over the side of the boat. Make an installation plan as
recommended in Section 2.5.1. Attach sonars to the desired bracket(s) and follow
installation plan.
2. Power: If a SIU-I-NAV is used, it must be supplied with 24VDC. If two (stand-alone) SIU-
I are used, each will need 12VDC. The standard power brick provided with a single head
system does not provide enough power for a dual head configuration. Please contact
NORBIT support should you require a larger power supply.
3. Antennas: As with the single-head, install antennas as recommended in 2.8
4. Cables: Secure, direct and connect all cables to the SIU, ideally located next to the
acquisition and control computer. The sonar cable of the
second system can plug into the Aux port of an iSIU.
5. SIU & PC: Connect the SIU to the control and acquisition
PC via ethernet. Before powering the sonar set the IP
address of the PC to 192.168.53.XXX where XXX can be
any number from 101 to 255 except 100 which is reserved
for the GNSS/INS or the last two digits of the sonar serial
number; set the subnet mask to 255.255.255.0.
6. GUI: Install the WBMS GUI and, with the SIU powered
on, run the GUI to detect and communicate with the
sonars. On the Connection Dialog, select the two
sonars and select the Primary sonar. Click Connect. The
example on this page shows an instance where the GUI
detects two sonars (indicated by green LED) and has the
IP address of a previously used, but disconnected system
(indicated by red LED). In this example, the user must
select the two detected systems, then check the Primary
selection on the desired system, then select Connect.
7. Sonar Controls: Once connected, two swaths appear in
the main GUI display with the primary sonar appearing on
the left, as shown in the example. Thus, visualization is
more intuitive if the primary sonar is installed on the port side. The primary and secondary
swaths are labelled on the display as such. If side scan is enabled, the image displayed
is that from the two sonar systems combined. Adjust sonar parameters as needed and
start collecting data. Any changes made to the sonar settings menu apply to both systems.
The controls for dual head remain the same as for single head. For more detailed
explanations of all sonar functions and controls, please refer to section 4.6. It is highly
recommended that users change the sonar Tx bandwidth to 40kHz (for each sonar) since
they are optimized for a total bandwidth of 80kHz.
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