Bob,
Sounds to me like it may be just a 4 connection splice
Inside wiring should not be spliced outside without being inside a protected
box. The splice will go bad and tape will not
keep it dry. So they sometimes used a small plastic box about 4 or 5 inches
square with 4 lugs inside to splice out
pieces of inside wiring that were too short to reach the new nid when
converting over from the old protectors
it kept the repairman or installer from having to replace a wire run when it
was too short to reach the nids.
Open it up and look, if it's on the inside wiring side of the nid,, it's
your
chuck

"Robert11" wrote in message
. ..
Hello:

Have the standard NID (network interface device) telephone box on the
outside of my house.

But, there is also a smaller J 104 box right next to it.

Did a lot of Googling, but cannot find anything on a J 104, or J104, box.

Anyone know what it is, and/or a possible link to where they are
described, and how used ?

Thanks,
Bob