We are in the process of connecting to the Internet and would
like to use some excess capacity on our existing T1 lines that
are connected to our PBX. It's my understanding that this could
be accomplished with a CSU/DSU with drop-and-insert capability.
However, the PBX and the desired location for the Internet termination
point are separated by approximately 4000 feet (1.3 km).
We have multimode fiber as well as a 900 pair (24 gauge) telephone
cable (with no bridge taps, carrying voice and data) available between
the two sites.
One possible solution was found in the Black Box catalog. They have a
T1 splitter (Order Code MT206A) (2 DSX-1 interfaces and 1 V.35
interface) that can be used in conjunction with a CSU/DSU (Order Code
MT100A-35-R2) which allows a "DSX-1 Long Loop" up to 6000 feet (1.8
km) using shielded twisted pair to be created between the two devices.
Is it essential that shielded pair be used in this application?
Are there other solutions, preferably using fiber, available?
Is there a better place to discuss this type of problem?
Paul L. Rogers