Point
to point communication can be carried out using 2-/4-wire
twisted pair cables or fiber optic cables. Fiber optic
cables can be used on parts of the network with high
performance requirements, or where the risk of electrical
and electromagnetic interference is high. It is also
more difficult to tap into communications via a fiber
optic cable. The communications principle is the same
as for 2-/4-wire cable, except that special modems which
transform the electrical signal into an optical signal
are used.
Gross Automation, 1725 S. Johnson Rd., New
Berlin WI 53146
262-446-0000 FAX 262-446-0300