[Info-vax] terminal servers etc

[F H]

On Jan 5, 7:16 pm, hel... at astro.multiCLOTHESvax.de (Phillip Helbig---
undress to reply) wrote:
> I would like to connect some real terminals far away from my cluster to
> a LAT service on the cluster so that I can hit RETURN on the terminal
> and one of the nodes will offer the login prompt.  If I have the basic
> idea correct, I can connect the terminals to a terminal server via a
> serial connection then connect the terminal server to the LAN where it
> can talk to the cluster via TCPIP or LAT.
>
> I've used a similar setup, years ago, but have no idea how it was set
> up.
>
> Speed is not an issue since I can't type much faster than 100 b/s.  :-)
>
> Some questions (note: I'm not looking for actual instructions; I'll look
> them up if I decide to go this route):
>
> How difficult is this to set up on the VMS side?
>
> Is LAT preferable (easier, better) than TCPIP?
>
> I have stuff like DECserver 90TL, DECserver 90M.  Will this do what I
> want?  (I also have some DECserver 200MC and 250 but I assume the 90s
> are the better choice here.)
>
> The DECrepeater 90T is functionally equivalent to a 10 Mb/s hub (but
> amplifies the signal, hence a repeater and not a hub), right?
>
> T is TCPIP, L is LAT, TL is both, M is both and more?  Since a hub or
> repeater is essentially a dumb device, why can't it handle all protocols
> as long as the wiring is correct?
>
> Is the only network connection on the server the BNC coax connector?  If
> so, I'll probably need one of the repeaters in order to connect this to
> a twisted-pair network.  I have both standalone server and repeater as
> well as some which connect to a backplane (and have the backplane as
> well).  Will the backplane provide a network connection between server
> and repeater?  (If so, I might be able to avoid BNC.)