Kongsberg Simrad SN90, Installation Manual

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381298/C
211
•
Master
The SN90 will wait 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
Pre-trigger .
Note that this delay will only work when the synchronization is set up using
a serial port.
•
Slave
The SN90 will wait for the delay time after the external trigger signal has arrived
before transmitting the ping. This is often referred to as
Post-trigger .
8 Select
Synchronization Mode
.
•
Standalone
This synchronization mode is used if the SN90 is working by itself, and with
no synchronization required. This is the default setting. The SN90 will operate
using its internal ping interval parameters, independent of any signals arriving
at the synchronization port.
•
Master
This mode is used if the SN90 shall act as a "Master" unit in a synchronized
system. The peripheral hydroacoustic system(s) will then only be permitted to
transmit when enabled by the SN90. When this mode is chosen, the SN90 will
run using its internal ping interval parameters, and transmit external trigger
signals to the peripheral system(s) on the synchronization port.
•
Slave
This mode is used if the SN90 shall transmit only when permitted by a peripheral
device. When this mode is chosen, the SN90 will wait for an external trigger
to appear on the chosen synchronization port before each ping. The peripheral
device may be any other hydroacoustic system (for example an echo sounder or
sonar), or even a dedicated synchronisation system.
Note
The synchronization mode is not fixed. It can be changed at any time during SN90
operation.
9 Click
OK
to save the chosen settings and close the dialog box.
Related topics
RS-232 used as synchronization trigger (input or output), page 166
Setting to work