224 would have been the LEN in older releases of the IPS. In those releases, LENs were XYY where X = PIM and YY is 00-63.

At a certain point, NEC started using form 14 and a len that goes XX YYY where XX is the Firmware Processor Number and YYY is 000-127 (and higher in even later releases.

So 224 in form 10 and 01024 in form 14 would point to the same port - third cabinet, fourth card, first port. You probably meant 223/01023, because the system counts from 00/000, at 8 ports per card.

Two cabinets per Firmware Processor, first two cabs have their Firmware on the Main Processor.

Hope that helps.

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