it's for thickwire. Though it certainly has more style than any other
form of ethernet (plus it is extremely immune to noise) it is not very 
common anymore. 
Isildur

On Thu, 27 Jan 2000, Douglas Meade wrote:

> I picked up a couple of HA4000's recently, having only seen them
> before in pictures.  I was interested in putting some real DEC
> equipment into my home network of Vaxes and Pmaxes.  However, 
> giving them a good look, I realize I don't have the foggiest
> idea how to hook them up.  In the middle of the device, there
> is a clamp, with a little sharp thingy that looks like it's supposed
> to dig into a wire of some kind, passing through there.  Would 
> that be a thinnet coaxial cable?
> 
> Doug
> 
> 
>