Motorola SG 2000 Instruções de Operação descarregar pdf (Página 30)

AT&T SLW2500 Installation and Operation Manual

Section 4

Installation

Installation consists of:

§ Splicing the six-fiber service cable to the transportation fiber

§ Installing the housing and electronics on the messenger strand

§ Applying power

§ Placing the unit in service

To avoid excess weight and the possibility of damage during installation, the housing is normally

mounted before the inclusion of the expensive electronic components. It is assumed that the node

components have been removed, configured, and tested on the bench and only minimal

alignment may be required following field installation.

Splicing Fiber

The six-fiber service cable can be spliced to the transportation cable at any time during the node

installation. Splicing does not need to coincide with the installation of the housing.

Fusion splicing is recommended because it has low insertion loss and is the most reliable

method. The splicing should be done by a technician experienced in splicing fiber.

To perform fusion splicing:

1 Obtain the 50-foot, six-fiber service cable with the compression fitting supplied in the node

package. Figure 4-1 illustrates this cable:

Figure 4-1

Service cable connection and compression fitting

Compression

nut

Main

body

Service

cable

Water

seal nut

SC/APC

connectors

Heat

shrink

2 Splice each fiber according to procedures recommended by the manufacturer of the splicing

equipment being used. A blue-coded fiber is suggested for the forward signal distribution and

a brown-coded fiber is recommended for the return path. Cleanliness in the work area is

essential.

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Motorola SG 2000 Instruções de Operação Página 30