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Joined: Aug 2008
Posts: 9
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Posts: 9
A 16 circuit ONS line card for my Mitel sx-50 recently failed, and I have noticed that I have only lost 4 phone lines. The 66-block the card is connected to is marked out for more lines, but they were never used. Can I replace the 16 circuit card with an 8 circuit without having to worry about programming or re-wiring? All of the lines which are in use are at the top of the block, so I assume they are connected to the first few pins which connect to the card (if this makes a difference?).

Of course this means I am in the market for such a card. So let me know if you have one for sale.

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Joined: Dec 2005
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Try our sponsor for the card, click on 'EQUIPMENT'. If that fails there are several equipment sellers that post here in Mitel.

And yes, you can sub an 8-circuit for a 16 circuit, as long as you aren't using circuits 9-16. 1-8 use the first 16 rows with color codes white/blue through green/red.


When I was young, I was Liberal. As I aged and wised up, I became Conservative. Now that I'm old, I have settled on Curmudgeon.
Joined: Aug 2008
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Thanks for the help, things worked just like you said.


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