A
Anonymous
Guest
I'm working on a boat having a navnet 3d. S/W is 1950064-02.01
Recently we experience a problem with DFF1.
When we start up the navnet, DFF1 is not recognised.
I have to cycle power of the DFF1 (by removing it's power cable) in order to get it working.
While working it will not be disconnected or show any other problem no matter for how long it's been used.
But each time I start navnet I have to go and disconnect the DFF1 power cable. (Disconnecting LAN or sounder cable makes no difference).
There wasn't any work done and I'm sure nobody touched anything related on the boat.
Things I notice:
When DFF1 is not recognised the LED flashes at 3 second intervals. (off period is 3 seconds)
When DFF1 is finally found the LED flashes faster at around 2 second intervals.
During standby LED is constantly ON.
From what I understand everytime I shut down navnet the DFF1 LED turns solid ON. In the morning is still solid ON and starts flashing sometime during navnet boot.
I've checked the ethernet switch and related power supplies and I see no problem there. I've also replaced the LAN cable between DFF1 and the switch.
Recently we experience a problem with DFF1.
When we start up the navnet, DFF1 is not recognised.
I have to cycle power of the DFF1 (by removing it's power cable) in order to get it working.
While working it will not be disconnected or show any other problem no matter for how long it's been used.
But each time I start navnet I have to go and disconnect the DFF1 power cable. (Disconnecting LAN or sounder cable makes no difference).
There wasn't any work done and I'm sure nobody touched anything related on the boat.
Things I notice:
When DFF1 is not recognised the LED flashes at 3 second intervals. (off period is 3 seconds)
When DFF1 is finally found the LED flashes faster at around 2 second intervals.
During standby LED is constantly ON.
From what I understand everytime I shut down navnet the DFF1 LED turns solid ON. In the morning is still solid ON and starts flashing sometime during navnet boot.
I've checked the ethernet switch and related power supplies and I see no problem there. I've also replaced the LAN cable between DFF1 and the switch.