Installation Manual

Table Of Contents
Removing an IFU
28 GHz SONET OC-3 IFU Installation - R1.0 5-3
1 Set the – 48 Vdc power source or contact breaker to the OFF position for
the IFU to be removed.
2 Remove the power and fiber optic cables from the IFU locations as shown
in Figure 5-1.
3 Replace dust caps on the exposed IFU and cable connectors.
Figure 5-1. IFU Cable Connections
CAUTION: Ensure the outside optical fiber connectors
are environmentally protected. Failure to do so may cause
contamination of the fiber surfaces.
MISE EN GARDE : S’assurer que les raccords extérieurs
fibre optique sont protégés contre l’environnement.
L’absence d’une telle protection peut entraîner la
contamination des surfaces des fibres.
Transmit
Indicator
Optical Fiber
Power
Alarm/Test
Earth
Ground
Cable