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I inherited a customer with a mitel SX-50 which blows Trunk cards at a rate of about 2 a year the customer has replaced the back plane once and the power supply twice in the past year. Has anyone seen this behavior before and what could it possibly be.
TIA
Don
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Moderator-Mitel, NEC, Vodavi
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I'm not sure. Make sure you don't use that slot any more or has this happened in different slots?
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DrPBX this happens in the last 2 trunk card slots.
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Moderator-Mitel, NEC, Vodavi
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Moderator-Mitel, NEC, Vodavi
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Is it always the same CO line having problems or just random.
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would it be to much to ask who the customer is. i'm trying to fgure out if it is one that i have seen before. i'm in portland.
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DRPBX,
It was relayed to me that it is various Trunks not the same one.
TIA
Don
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Joined: Jul 2001
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Moderator-Mitel, NEC, Vodavi
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Moderator-Mitel, NEC, Vodavi
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Is the system properly grounded? Check it w/ a ohm meter to verify.
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Joined: Jul 2001
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Moderator-Mitel, NEC, Vodavi
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Moderator-Mitel, NEC, Vodavi
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Was the backplane(MCII or I) & power supply replaced to try to fix the problem, or did they go bad?
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The backplane and power supply were replaced to attempt to fix the problem.
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Hiya,
I would suggest that you check your loop current. It MUST be between 28-32 milliamps for the SX-50. If it is too high it will sieze the trunk and not release, sometimes blowing the port. If it is too low you will not be able to sieze the trunk at all.
Just my 2 cents.
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