AIS Connection Lost | C90W | IC-M506 | NMEA-2000

Hello,

We had a new RM system professionally installed last fall.

EV-200 Sail / T1 Linear drive with p70 head
I70 SailPack Depth/Speed/Wind
ITC-5,
2 - i70 display units
RD418 Radar
ICOM IC-M506 AIS VHF (connected to ITC-5)
C90W MFD
RS130 GPS

We have had significant problems with "AIS Connection Lost" alarms on the C90W running the latest v2.35 firmware. Every 10-20 seconds or so we have to reset this alarm.

The only way either my installer or I can find to stop this is of course, to disconnect the radio from the N2K bus. When it is connected, we do see AIS information on the i70 instruments and chart plotter.

Disconnecting the radio means it doesn't receive GPS information on the base or hand-held, nor can the radio or handheld show AIS information anymore.

Any ideas here?

See Images:
http://forum.raymarine.com/attachment.php?aid=569
http://forum.raymarine.com/attachment.php?aid=570

  2-AIS_Connection_Lost.jpg (Size: 116.37 KB / Downloads: 1)

  1-AIS_Connection_Lost.jpg (Size: 97.52 KB / Downloads: 1)