Tyco 4100U-S1 - Manual (Page 54)

3-12
Connectors U1 (transmitter) and U2 (receiver) on the 4100-6057 Fiber-Optic Media Card
are used to connect 4100-6014 NICs across parts of a network.
Note: ST connectors with long strain relief boots must be used with the fiber optic
cable.
Dual Fiber Optic Cable Connections. The standard fiber optic connection between
network nodes uses two fiberoptic cables, one for transmit and the other for receive. This
connection allows for optimum communications distance.
The available communications distance is determined by the properties of the specific
fiber cable used. Distances can be determined using the information and examples shown
below in Table 3-3.
Between any two connected network nodes, U1 (transmit) on the Fiber Media card of one
node is connected to U2 (receive) of the Fiber Media card of the other node, i.e., the
fibers “cross over” between nodes.
Single Fiber Optic Cable Connections. For applications where a single fiber cable is
available, or where use of a single cable is desired, using a model 4190-9010
Bi-Directional Coupler at each node combines the separate transmit and receive signals
into a single path (refer to the requirements list).
This connection allows use of a single fiber cable, but it does reduce communications
distance as indicated in the information and examples shown below in Table 3-4.
At each node, U1 (transmit) of the Fiber Media card must be connected to the transmit
port of the coupler, and U2 (receive) to the receive port of the coupler.
Continued on next page
Step 4. Wiring Network Cards, Continued
Fiber-Optic Wiring
Fiber Optic
Connection Types