KONGSBERG K-Sync
Note
There are wide differences among echo sounders in their implementation of the signal
interface. Consult the product manual for the individual systems for specific information
on timing and signal specification.
Specific signal settings
The following settings are available for ready to transmit and the transmitting feedback
signals:
•
Signal is available:
If the echo sounder provides a particular feedback signal, then
this checkbox should be checked. If enabled, this setting will also make certain
runtime settings available (see section
on page 42).
•
Terminal:
This is the ID of the hardware connection inside the Synchronizing Unit.
There are 48 digital inputs available, numbered I00 to I47.
•
Signal active:
This setting specifies whether the input/output is active high or active
low. See table on page for the actual voltage levels associated with this setting. The
level also depends on whether the input has been configured for TTL or RS-232
signal level.
To illustrate, if the manufacturer specifies that the ready to transmit signal is TTL and
active when voltage is +5V, then from the table below, the signal active should be
configured as active high. Likewise, an RS-232 signal that is specified to be active
when voltage is > + 3V should be configured as active low (as RS-232 signals are
inverted internally).
Table 1
Signal type
Signal type
(hardware setting
inside SU)
Active state Setting
Logic state
Active low
Active high
Inactive
+5 V
0 V
TTL
Active
0 V
+5 V
Inactive
<-3 V (-12V)*
>+3 V (+12V)*
RS-232
Active
>+3 V (+12V)*
<-3 V (-12V)*
* For trigger outputs the RS-232 levels are 12 V or -12 V.
The corresponding voltage level of each signal depends upon whether the signal
is TTL or RS-232 coming out of the Synchronizing Unit (this is a hardware
configuration inside the unit).
Note
RS-232 refers in this document only to RS-232 signal level as no data is actually
transmitted.
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