Sounds like your typical 480 port SX-200D generic 100x or Lightwave 15.

The left cabinet should have a digital bay on the bottom with a couple of floppy disk drives and some short cards. The bay above it is probably analog with 12-14 inch high cards and slots numbered 1-14. The second cabinet probably has two analog shelves like the one in the top of the first cabinet.

Part numbers 9110-xxx-xxx would be normal for Trunk, Station and Superset station cards.

Carl

This model is end of life