[Info-vax] DECServer 900tm Console port connection

[jasonkoelling at gmail.com]

Thank you for the quick reply: im actually trying to console into a DECserver 90M+ to configure the IP address. I need to make a console cable with the correct pin out and im finding very little info on that model. I have cut the end off a DB9 null modem cable and punched it down in a cat5e female jack in hopes that I can easily re-punch it if my first try is wrong (instead of having to recrimp a rj45 jack).. then just use a straight through patch cable to the DECserver.  Could you provide me the direct DB9 to RJ45 pin map for this model of DECserver? Any help is appreciated. 


On Tuesday, January 12, 2016 at 10:26:03 PM UTC-6, Stephen Hoffman wrote:
> 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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