Yep, PBX, the Bus Transceiver that translates everything on the CPU bus in that series to an '030 slow I/O bus, per the docs.
Confuzzled a bit, very tired. TREX is the ASIC on the underside of the card cage PCB of the 1400. One of my long ago obsessions was to transmute that entire subsystem into the HDD bay of the Duo. Had HDD and Wireless NIC cards ready and rearin' to populate those two PCMCIA slots.
No longer necessary, given wireless NIC capabilities of some SD based HDD replacement solutions now available. But if I ever get my hands on an UltraDock, that's exactly what's going into it. That gaping maw underneath whatever else they installed in those things was intended to house the equivalent of the 1400 Card Cage subassembly.
Confuzzled a bit, very tired. TREX is the ASIC on the underside of the card cage PCB of the 1400. One of my long ago obsessions was to transmute that entire subsystem into the HDD bay of the Duo. Had HDD and Wireless NIC cards ready and rearin' to populate those two PCMCIA slots.
No longer necessary, given wireless NIC capabilities of some SD based HDD replacement solutions now available. But if I ever get my hands on an UltraDock, that's exactly what's going into it. That gaping maw underneath whatever else they installed in those things was intended to house the equivalent of the 1400 Card Cage subassembly.
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