Hi all!

I'm trying to build serial console to my PMAX (unfortunately I don't have any 
other options).

I looked at http://q.dyndns.org/~blc/DS3100/pinouts.html (thanks Benson!) and 
at Bill Sherman's guide to serial cable wiring 
(http://www.ncsa.uiuc.edu/VR/Info/serial_info.html) and did it like this:

PMAX MMJ-6<->RS-232 DB9
1. DTR <-> db9-9
2. TD (+) <-> db9-2
3. TD (-) <
    -> db9-7
4. RD (-) <
5. RD (+) <-> db9-3
6. DSR <-> db9-6

With this kind of setup all I could get from PMAX's "Printer" port is random 
symbols. "Serial" is silent.
Then I thought that I should actually make null modem, so i did it like this:

PMAX MMJ-6 <-> RS-232 DB9
1. DTR <-> db9-6
2. TD (+) <-> db9-3
3. TD (-) <
    -> db9-7
4. RD (-) <
5. RD (+)  <-> db9-2
6. DSR <-> db9-9

This way I don't even get any random signals anymore :)

PMAX itself should be ok (leds 0 to 6 are all on, so this should only mean 
that OS is missing, right?)

I think I'm too lame to make it myself, anyone could help? One idea is that 
maybe I should have been using db9-ibm...

Thanks,
Boris