[Info-vax] retro VMS hardware

[Richard B. Gilbert]

glen herrmannsfeldt wrote:
> Richard B. Gilbert <rgilbert88 at comcast.net> wrote:
>  
>> ISTR a "jig" that fastened on to the cable and guided a drill bit making
>> the hole for the "vampire tap".  I never installed any thick-wire 
>> Ethernet myself and only saw it done once.  Thinwire was a bit more 
>> convenient and UTP was right around the corner!
> 
> No jig.  The clamp part goes over the cable first, and is
> tightened with the appropriate wrench.  That also includes
> two replacable pins that grip through the outer insulation
> and into the shield.  Using two allows detecting collisions
> while sending.  (Even better would be with two center
> conductor taps, but that seems not to be needed.)
> 
> Then the drill goes through the hole in the clamp such that the
> hole has the right depth and position.  The other end of the
> drill has the wrench to screw in and tighten the actual tap.
> There is a cover to put over it until a transceiver is installed.
> 
> -- glen

See http://dictionary.reference.com/browse/jig

I think it's correct to describe the clamp as a jig since it functions 
as one.