Kongsberg Simrad EK80 Installation Manual page 151

Pin number Signal
1
Trigger Out
2
Ground
3 RTT
4 Trigger In
5 Ground
6 Not used
Local connection on the Processor Unit
A
Connections on the K-Sync IO Module
B
394149/D
Cable layout and interconnections
Signal description
This signal is transmitted to the system that needs to be
synchronized. Trigger Out allows the system to transmit
("ping").
Mandatory! This ground is connected to pin 5 inside the IO
Module.
Ready to Transmit: Ready to Transmit (RTT) is a return
signal from the hydroacoustic system that is synchronized.
The Ready to Transmit (RTT) signal means that the
hydroacoustic system is ready for the next trigger.
This signal is received from the system that needs to be
synchronized. Trigger In is "active" while the system is
transmitting.
Mandatory! This ground is connected to pin 2 inside the IO
Module.
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