There exist little red caps that fit onto 66 blocks and binding
posts. They're hard to find, though. If someone here knows of
the supplier, I'll buy a few hundred.
In the 60's there was a special red ty-wrap that went around/over
posts/punches for ""national security"" lines. You had to cut same
off to test, and {in theory} requisition a replacement. I've only
see same in BSP's so I've no idea if they ever got much use.
We used to protect leased metallic pairs in a simpler manner; we
parked +130 Tip/-130 Ring on same. When Mr. Green put his butt set
on same; if his fingers didn't alert him, the BANG in his ear did.
There exist little red caps that fit onto 66 blocks and binding
posts.
I remember these, we only had a few so we used them on the
most important ckts.
We used to protect leased metallic pairs in a simpler manner; we
parked +130 Tip/-130 Ring on same. When Mr. Green put his butt set
on same; if his fingers didn't alert him, the BANG in his ear did.
T1 local loops were powered from the CO throughout the early 80s
since the CSU was part of the service offering and telco wanted to
make sure that they could loop the CSU even if the power was down at
the user site. fun fun fun.
dave
The Siemon catalog lists "Red Special Service Markers" and come in 2,
3, and 6 position sizes. See:
<http://www.siemon.com/e-catalog/family.asp?FAM=co_S66_A_RSSM>
I would imagine that your telecom supplier would be able to order them
for you if they don't have them or a similar item in stock.
Jeff