Simplex 4100 Series Installation Instruction page 19

4100/4120-6014, 4100-6078 NICs and 4100/4120-Series Media Modules Installation Instruction
Figure 19: Transient suppressor
Dual Fiber-Optic Wiring (746-109 only)
Connectors U1 (transmitter) and U2 (receiver) on the Dual Fiber-Optic Media Card are used to connect 4100-6014 and 4100-6078 NICs across parts of
a network.
The maximum distance between nodes when using fiber cable is dependent on the size of the cable. Table 4 lists the maximum cable lengths.
Note: ST connectors with long strain relief boots are to be used with the fiber optic cable.
Figure 20 shows how two network nodes are connected via fiber-optic cable.
Figure 20: Dual fiber wiring
Dual fiber-optic connection types (746-109 only)
Dual fiber-optic cable connections. The standard fiber optic that connections between the 4120 Network nodes uses two fiber optic 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 4.
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 4 and Table 5.
page 19 579-182 Rev. V