Contemporary Research TD960801-0MC - Manual (Page 18)

TD960801-0MC
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Figure 2-8. A maximum of eight EXTEND-A-BUSes can
occupy one coaxial backbone segment before an active hub is
required. Use BNC “Tees” and terminators when making
connections. One of each is included in the -CXB model.
2.6.2 Connecting Fiber Optic Cable (-FOG)
Multimode fiber optic cable is typically available in three sizes,
50/125, 62.5/125, and 100/140. The larger the size, the more
energy that can be launched and, therefore, the greater the
distance. Bayonet style ST connectors, similar in operation to
BNC coaxial cable connectors, are provided for making the
fiber connections.
Fiber optic connections require a duplex cable arrangement.
Two unidirectional cable paths provide the duplex link. There
are two devices on the EXTEND-A-BUS fiber port. One device,
colored light gray, is the transmitter and the other, dark gray, is
the receiver. Remember that “light goes out of the light (gray).”
To establish a working link between an EXTEND-A-BUS and
another EXTEND-A-BUS or an EXTEND-A-BUS to a hub, the
transmitter of point A must be connected to a receiver at point
B. Correspondingly the receiver at point A must be connected to
a transmitter at point B. This establishes the duplex link which
is actually two simplex links. Fiber optic cable is available
paired for this purpose. Usually the manufacturers' labeling is
only on one cable of the pair which is handy for identifying
which of the two cables is which. Establish your own protocol