[Info-vax] terminal servers etc

[David Froble]

Phillip Helbig---undress to reply wrote:
> In article <50e9e0bb$1 at news.langstoeger.at>, peter at langstoeger.at (Peter
> 'EPLAN' LANGSTOeGER) writes: 
> 
>> In article <kcbd7q$7nh$1 at online.de>, helbig at astro.multiCLOTHESvax.de (Phillip Helbig---undress to reply) writes:
>>> Yes, I have some BNC terminators.  Should one go just on the DEChub
>>> (i.e. the backplane) or on the DECserver as well?
>> Only on the DEChub90 (The BNC - and the UTP - of the DECserver is unused if
>> plugged into a DEChub90). You don't even have the space on the side for it.
> 
> OK, if it is in the hub, everything works through the hub, meaning the 
> BNC connection on the hub goes to the outside world.  If not, then the 
> BNC (terminate if not used) and UTP connectors to the outside world 
> work.
> 
> I see that the DECserver (but not the DECrepeater) also has a power 
> connection on the back, so can be run outside the hub.  The repeaters 
> presumably don't need power, or get what they need through the 
> backplane.

I don't know what you're looking at, and some loose terminology is being 
thrown around in this topic.

The DECserver90TL, at least the ones I have, has the backplane 
connector, the 10base2 connector on the side, and a power socket if the 
unit is being used without the DEChub90.  (Or DEChub900).

Bart is causing me to go to the basement to dig out the only 
DECserver90M that I have, which I believe is non functional.  I don't 
ever remember any twisted pair connection on any of the DEChub90 
modules.  There was I believe a command port, and possibly something 
else, but not a twisted pair RJ45 port.

> On another server and repeater (not in the hub and no connector for it), 
> there is the same power connector, but an additional circular switch.  
> What is the latter for?
>  

Never saw any switches.  Note, there were the modules sold as stackable, 
but I never saw one of them.