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We have a fan tray major alarm. We replaced it with a known good unit. No help. We we run the fan tr

We have a  fan tray major alarm. We replaced the fan tray with a known good unit. No help. When running a fan tray test all the functions work, but an error message displays saying "not receiving fta msgs". We replaced the ATP card. No help. Any ideas what to try next? Could it be the shelf itself? This is a C7 shelf.

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Registered: ‎01-07-2010
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Re: We have a fan tray major alarm. We replaced it with a known good unit. No help. We we run the fan tr

Try doing a RAP protection switch and then reseat the fan tray.  That should get it back working.

Chad Whitten
Calix Networks
Senior Systems Engineer
TAC 877-766-3500
Email: chad.whitten@calix.com
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Registered: ‎01-31-2014
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Re: We have a fan tray major alarm. We replaced it with a known good unit. No help. We we run the fan tr

We have this same issue.  Tried new AMP, however older rev.  Tried new fan tray.  Tried protection switch and reseat.  Fan Tray still shows OOS in CMS.  Still get the same message on tray when reseated.  "Not receiving FTA msgs"  Anymore suggestions?

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Posts: 97
Registered: ‎08-17-2010
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Re: We have a fan tray major alarm. We replaced it with a known good unit. No help. We we run the fan tr

SO.....what was the solution to this problem?  Replace the C7 shelf??