Mitel 200 lite backplane connectors 1

[tinga1]

Have been working on a hotel Mitel system. Following the cables to the 66 blocks from the rear of the Mitel system. 66 block have been wired and looking at the pinouts the 13th pair is not used. Does the Mitel system have 2 separate cards. 12 port card for 1st 12 pair and another card for the second half of the 25pr (50 pin) cable. Sharing the one cable. Or, is a 24 port card.
The actual units are of 6 units about size of old PC tower linked together via fiber.
Mitel tech is out of town for a week or two. This is purely out of interest. I was troubleshooting dial tone to rooms which turned out to be wiring issues. Corrosion to pool. Bad room jacks.Left note for PBX tech. when he returns
Any feedback would be appreciated.

 

[kwbMitel]

There are 8 slots in each per bay

There are 4 Amphenols.

2x 12 port cards per amphenol.

The first card is pairs 14-25, the next is pair 1-12 (kinda backwards)

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What's most important is that you realise ... There is no spoon.

 

[tinga1]

Thankyou kwbMitel. My thoughts were correct and thankyou for the feedback. I did notice the labeling on the blocks were a little different. First half were going to 1st floor and other half went to another floor.
Most helpful.