On Thu, 6 Jul 2000 16:26:17 -0500 (CDT), Paul Thompson
<thompson(a)mail.athenet.net> wrote:
I ones I have seen/worked on have a 486 or pentium processor, and standard
ISA slots. I believe the hard drive is SCSI although I have not seen one
of these apart in several years. If yours is particularly ancient
(Rolm/Siemens) these might not apply. I believe the ISA standardizations
might have taken place after Rolm was accquired by IBM although everything
was still sold under the Rolm brandname.
The O/S and channel interfaces to the switch are proprietary. There is a
SA login which gives access to the nuts and bolts of the operating system.
Most customers do not have that password but rather one which allows them
to configure voicemail accounts.
Paul
Actually, our "new" one (which is apparently a pretty old design, and a used
box) is a bunch of PC hardware (386 motherboard, PS/2 style floppy, SCSI
hard drive, and some ISA cards, all in a custom cabinet about the size of a
large microwave oven). The phone tech showed me around inside it and told
me that the current models are built around a completely standard tower PC
chassis. As for the old box... I pulled out several large (~24" square)
cards full of Z-80's, PIOs, EPROMS, A/D & D/A converters, and piles of TTL
chips, six large 110VAC muffin fans, and several large diodes and a 63,000
ufd, 75v capacitor from the power supply. I kept the hard drive too,
although I'm not sure what I'm going to do with it. The rest went to the
metal scrappers.
-Bill Richman (bill_r(a)inetnebr.com)
Web Page:
http://incolor.inetnebr.com/bill_r
Home of the COSMAC Elf Microcomputer Simulator, Fun with
Molten Metal, Orphaned Robots, and Technological Oddities.