Looking for RL02 cable and terminator

Tony Duell ard at p850ug1.demon.co.uk
Sun Oct 16 12:40:43 CDT 2005


> 
> On 10/16/05, Pete Turnbull <pete at dunnington.plus.com> wrote:
> > RL01 and RL02 cables have those funny connectors at both ends.
> 
> Drive-to-drive cables certainly all do, and _most_ interface-to-drive
> cables do, but some do not.
> 
> In particular, I have seen a 40-pin-Berg-to-RL-drive cable (no ribbon
> cable whatsoever)
> in two situations; with an RLV12 in a MicroVAX-II, and my own RL8A. 

Yes, that cable (40 pin BERG socket to RL-style plug was commonly used 
with the RL8A and with Qbus conntrollers. 

Electrically there's no difference between using that cable, and using 
the 40 pin Berg socket to Berg socket cable + RL style socket + RL-to-RL 
cable. That setup was more commonly used with the RL11 Unibus controller, 
but it works with any of them AFAIK. Use whichever is more convenient (or 
whichever you have parts to do).

-tony



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