[Info-vax] retro VMS hardware

[glen herrmannsfeldt]

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