Since I have the hood open on my 8200, I thought I'd diagnose the troubles I've been having with getting a DEBNT working in there. The 8200 I have came with a KDB50, 4MB RAM and one CPU. Nothing else (and was $13,000 when my former employer bought it - I just re-found the receipt). The only serial ports are the four console ports. No DMB32 or anything like that (not that I would mind locating one of _those_ either). Since it first arrived, I put in more RAM, COMBOARDs (that we made) and a DWBUA (which I'm diagnosing for its own problems). I am now attempting to use a DEBNT I received some time back. Here's what it looks like inside... T1001 KA820 - 8200 CPU T1010 DWBUA - Unibus adapter T1001 KA820 - 8200 CPU (not installed at present) T1002 KDB50 - KDB50 SDI adapter T1003 KDB50 - KDB50 Processor board T1019 MS820-BA - 4MB RAM for VAXBI processor T1019 MS820-BA - 4MB RAM for VAXBI processor T1019 MS820-BA - 4MB RAM for VAXBI processor T1008 MS820-AA - 2MB RAM for VAXBI processor T1008 MS820-AA - 2MB RAM for VAXBI processor 1294 CBSBI - COMBOARD-BI (sync comms front end processor) T1032 DEBNT - Ethernet and TK50 controller (I used http://www.stmarks.pp.catholic.edu.au/vax/VAXBI.html for reference) As you can see, it's a full boat - 16MB of RAM in 5 cards. I'd love to run across an inexpensive MS820-CA or two. I wouldn't mind pulling the MS820-AAs out, but 16MB is an OK amount of memory for a single user. I'm also on a long-term quest for free or nearly free KA825 boards - I'd be nice to bring this up to an 8350. The disks are 3rd-party ESDI (1.2Gb each) drives on a 3rd-party ESDI- to-SDI controller. Very nice. Beats an RA81 hands down. At the moment, I'm running VMS 5.4 and plan to continue for some time (due to compatibility needs for the COMBOARD stuff I used to write). I do have a pair of RA70s I was thinking of putting on it as well. So... the DEBNT itself fails self-test if there is nothing attached to the AUI connector. If I attach a DEC loopback connector to the AUI plug, ISTR I get the yellow LED telling me it passed. If I put a 10BaseT transceiver on there, the TX light stays lit with no networking drivers/software loaded. First and foremost, I'm attempting to verify I put the cables on the right places. I have 30-pin connector off one end of the AUI cable. I have a 30-pin connector with one wire attached that seems to be a jumper block of some kind. At the moment, they are attached to the BI backplane at block "E", I think because that's what seemed to be right from looking at where the Lance chip is on the DEBNT. If anyone has installation instructions, particularly cabling instructions, those would be very helpful. Once I get the hardware happy, I'll need to move to software. Since I want to stay at VMS 5.4, what are my TCP/IP options as a hobbyist? The only other VAX I have set up with Ethernet is also running 5.4 - a uVAX-II with a DEQNA. I do have VMS 6.1, but I'm not using it at the moment. Thanks for any DEBNT and VAXBI tips and hints. I have some docs, but not everything. Mostly, I'm drawing on general VAX experience combined with observation and experimentation. I know my way around the VAXBI bus, but not around some of the peripherals. -ethan __________________________________________________ Do You Yahoo!? Yahoo! Sports - live college hoops coverage http://sports.yahoo.com/

So... the DEBNT itself fails self-test if there is nothing attached to the AUI connector. If I attach a DEC loopback connector to the AUI plug, ISTR I get the yellow LED telling me it passed. If I put a 10BaseT transceiver on there, the TX light stays lit with no networking drivers/software loaded. First and foremost, I'm attempting to verify I put the cables on the right places. I have 30-pin connector off one end of the AUI cable. I have a 30-pin connector with one wire attached that seems to be a jumper block of some kind. At the moment, they are attached to the BI backplane at block "E", I think because that's what seemed to be right from looking at where the Lance chip is on the DEBNT. If anyone has installation instructions, particularly cabling instructions, those would be very helpful.