Smoke Alarm User Manual

5-13

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 are to be used with the fiber

optic cable.

Figure 6-10 shows how two network nodes are connected via fiber-optic cable.

U1 U2 U1 U2 U1 U2 U1 U2

Figure 5-9. Fiber Wiring

Dual Fiber Optic Cable Connections. The standard fiber optic connection between

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 6-3.

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 6-4.

Continued on next page

Step 4. Wiring Network Cards, Continued

Fiber-Optic Wiring

Fiber Optic

Connection Types

FIBER MEDIA CARD

4100-6014

NETWOR

INTERFACE CARD

Fiber-Optic Cable