[Info-vax] DECServer 900tm Console port connection

[Stephen Hoffman]

On 2016-01-13 03:56:46 +0000, jasonkoelling at gmail.com said:

> so can you give your final pinout from RJ45 to DB9 ?

Welcome to the comp.os.vms newsgroup, and to a five year old newsgroup 
thread!   (No, this newsgroup isn't something at Google, you're just 
using Google Groups as a news reader.)

What was posted looks pretty clear, but it's for a DB25F and not for 
the DB9 that you mention.

Which two serial devices are you working with?   The DECserver 900tm 
discussed in the title or the DECserver 90TL mentioned earlier, or some 
other combination?   Why do I ask this?   Because there's no single 
pinout for either RJ45 nor for DB9 or for the MJ45 that was mentioned, 
unfortunately — I'm not entirely sure what an MJ45 is; the more common 
connector with DEC gear is the MMJ.   Servers that have been commonly 
used with OpenVMS — the usual topic of this newsgroup — uses two 
different DB9 pinouts, for instance.

Get yourself a serial line breakout box or a breadboard or the 
aforementioned multimeter, and prototype the connection — that'll avoid 
having to reset pins in the DB9, or re-crimp the connector.   You'll 
probably want a pin-insertion DB9, unless you're into soldering, too.   
Those connectors can be re-wired, if you're careful.

As for the usual DECconnect adapters, see the links to diagrams and 
related materials at: http://labs.hoffmanlabs.com/node/467
DECserver 900 
http://manx.classiccmp.org/collections/mds-199909/cd2/network/dsrvxica.pdf 
— has part numbers for the MJ8 and MP8 ports.  See Appendix B for 
pinouts.
For another model DECserver, see: 
http://manx.classiccmp.org/collections/mds-199909/cd2/network/dsrvgom1.pdf 



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