Hi everyone! Recently I've been taking a closer look at a system that I rescued last summer from the property disposition department of one of the local higher education concerns - a relatively well-equipped PDP11/34a along with a rather broken RX02 disk drive. As far as I can tell, the PDP11 system is in fine working condition. I had to put a new power cord on it (the old one was chopped off when the system was decommisioned for some reason), but barring that, it powers up and the front panel seems alive. The machine has the following configuration: M8256 PDP11/34a data paths module (KD11-EA) M8266 PDP11/34a control module (KD11-EA) M8204 Microprocessor, DMC-11 code, 1kb memory (KMC11-A) M7867 SDLC or DDCMP sync interface (DUP11-DA) M7867 SDLC or DDCMP sync interface (DUP11-DA) M7856 RS-232 SLU with RTC (DL11-W) BM873-YJ ?? M7859 Front panel console interface (KY11-YB) M9202 Unibus connector M7850 Parity for G651, MS-11 (MM11-BP/CP) G652+H222A 16 kword 16 to 18 bit motherboard with 16 kword 18 bit core stack (MM11-DP) G652+H222A 16 kword 16 to 18 bit motherboard with 16 kword 18 bit core stack (MM11-DP) M9202 Unibus connector M7258 Dataproducts interface printer controller (LP11) I guess I've got a few questions about this machine. They go something like this: 1. Does anyone have the pinouts for the serial line connector on the DL11 board? I've got the board, but the cable had been disconnected from it. 2. Does anyone know what that BM873-YJ board is? I'm just curious. 3. What would be the best way to get this old system running again? I've got no interface to that RX02 drive, and even if I did, I think half of it is pretty well broken - the plastic frame of the disk drive is cracked. I tried to glue it, but even if that worked, I imagine it must be terribly out of alignment now. I thought I remember someone asking about loading software over a serial line? I've got my guesses as to what this system did in a past life. Perhaps it ran as a front-end for the IBM mainframe that the university ran, or perhaps it served as a router-type device on the MichNet network years back.. Maybe it didn't do either of these things. I'm not sure! Thanks for any help! --Sean Caron (root(a)diablonet.net) | http://www.diablonet.net