User's Manual

Fiber Optics Powerwave

4 - 10 Rev. P1A9-Draft 2004-11 VM100 56/EN – User’s Manual

FOU, Fiber Optic Unit

The FOU, Fiber Optic Unit, is a complete unit for fiber optic interconnection of two or

more repeaters. It is built up on a flanged plate and can be inserted in all types of LGP

Allgon AR repeaters. In the simpliest configuration, it contains a FON board and a DPX

filter.

Figure 4-7 shows a simple configured FOU, Fiber Optic Unit.

Figure 4-7. The FOU, Fiber Optic Unit

An FOU inserted in the BMU and in the FOR is shown in Figure 4-8.

Figure 4-8. FOU inserted in the BMU and FOR

The FOU can also be configured with optical splitters for more than one FOR in the

optical network, and with WDMs for optical duplex transmission.

FOU

FON

FOU

BTS

FON

BMU

FON

FOR

FOU